void CMiniMap::SetCameraPos()
{
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
CVector3D target;
GetMouseWorldCoordinates(target.X, target.Z);
target.Y = terrain->GetExactGroundLevel(target.X, target.Z);
g_Game->GetView()->MoveCameraTarget(target);
}
///////////////////////////////////////////////////////////////////
// Calculate The blurred normal map to get an idea of where water ought to go.
void WaterManager::RecomputeBlurredNormalMap()
{
// used to cache terrain normals since otherwise we'd recalculate them a lot (I'm blurring the "normal" map).
// this might be updated to actually cache in the terrain manager but that's not for now.
if (m_BlurredNormalMap == NULL)
m_BlurredNormalMap = new CVector3D[m_MapSize*m_MapSize];
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
// It's really slow to calculate normals so cache them first.
CVector3D* normals = new CVector3D[m_MapSize*m_MapSize];
// Not the edges, we won't care about them.
float ii = 8.0f, jj = 8.0f;
for (size_t j = 2; j < m_MapSize-2; ++j, jj += 4.0f)
for (size_t i = 2; i < m_MapSize-2; ++i, ii += 4.0f)
{
CVector3D norm;
terrain->CalcNormal(i,j,norm);
normals[j*m_MapSize + i] = norm;
}
// We could be way fancier (and faster) for our blur but we probably don't need the complexity.
// Two pass filter, nothing complicated here.
CVector3D blurValue;
ii = 8.0f; jj = 8.0f;
size_t idx = 2;
for (size_t j = 2; j < m_MapSize-2; ++j, jj += 4.0f)
for (size_t i = 2; i < m_MapSize-2; ++i, ii += 4.0f,++idx)
{
blurValue = normals[idx-2];
blurValue += normals[idx-1];
blurValue += normals[idx];
blurValue += normals[idx+1];
blurValue += normals[idx+2];
m_BlurredNormalMap[idx] = blurValue * 0.2f;
}
// y direction, probably slower because of cache misses but I don't see an easy way around that.
ii = 8.0f; jj = 8.0f;
for (size_t i = 2; i < m_MapSize-2; ++i, ii += 4.0f)
{
for (size_t j = 2; j < m_MapSize-2; ++j, jj += 4.0f)
{
blurValue = normals[(j-2)*m_MapSize + i];
blurValue += normals[(j-1)*m_MapSize + i];
blurValue += normals[j*m_MapSize + i];
blurValue += normals[(j+1)*m_MapSize + i];
blurValue += normals[(j+2)*m_MapSize + i];
m_BlurredNormalMap[j*m_MapSize + i] = blurValue * 0.2f;
}
}
delete[] normals;
}
//--------------------------------------------------------------------------------------
// RenderTerrain
//--------------------------------------------------------------------------------------
void RenderTerrain( ID3D10Device* pd3dDevice )
{
D3DXMATRIX mWorld;
D3DXMatrixIdentity( &mWorld );
D3DXVECTOR3 vEye;
D3DXVECTOR3 vDir;
D3DXMATRIX mCamWorld;
D3DXMATRIX mView;
D3DXMATRIX mProj;
GetCameraData( &mCamWorld, &mView, &mProj, &vEye, &vDir );
D3DXMATRIX mWVP = mCamWorld * mView * mProj;
pd3dDevice->IASetInputLayout( g_pBasicDecl10 );
g_pmWorldViewProj->SetMatrix( ( float* )&mWVP );
g_pmWorld->SetMatrix( ( float* )&mWorld );
g_ptxNormal->SetResource( g_pNormalTexRV );
g_ptxDirt->SetResource( g_pDirtTexRV );
g_ptxGrass->SetResource( g_pGroundGrassTexRV );
g_ptxMask->SetResource( g_pMaskTexRV );
if( !g_bShowTiles )
{
D3DXVECTOR4 color( 1,1,1,1 );
g_pvColor->SetFloatVector( ( float* )&color );
}
pd3dDevice->IASetIndexBuffer( g_Terrain.GetTerrainIB10(), DXGI_FORMAT_R16_UINT, 0 );
D3D10_TECHNIQUE_DESC techDesc;
g_pRenderTerrain->GetDesc( &techDesc );
for( UINT p = 0; p < techDesc.Passes; ++p )
{
// Render front to back
UINT NumTiles = g_VisibleTileArray.GetSize();
SetNumVisibleTiles( NumTiles );
for( UINT i = 0; i < NumTiles; i++ )
{
TERRAIN_TILE* pTile = g_Terrain.GetTile( g_VisibleTileArray.GetAt( i ) );
if( g_bShowTiles )
{
g_pvColor->SetFloatVector( ( float* )&pTile->Color );
}
g_pRenderTerrain->GetPassByIndex( p )->Apply( 0 );
g_Terrain.RenderTile( pTile );
}
}
}
//--------------------------------------------------------------------------------------
// Release D3D9 resources created in the OnD3D9CreateDevice callback
//--------------------------------------------------------------------------------------
void CALLBACK OnD3D10DestroyDevice( void* pUserContext )
{
g_DialogResourceManager.OnD3D10DestroyDevice();
g_SettingsDlg.OnD3D10DestroyDevice();
DXUTGetGlobalResourceCache().OnDestroyDevice();
g_Terrain.OnDestroyDevice();
g_BallMesh.Destroy();
g_SkyMesh.Destroy();
SAFE_RELEASE( g_pFont10 );
SAFE_RELEASE( g_pSprite10 );
SAFE_DELETE( g_pTxtHelper );
SAFE_RELEASE( g_pEffect10 );
SAFE_RELEASE( g_pBasicDecl10 );
SAFE_RELEASE( g_pBallDecl10 );
SAFE_RELEASE( g_pGrassDecl10 );
SAFE_RELEASE( g_pHeightTexRV );
SAFE_RELEASE( g_pNormalTexRV );
SAFE_RELEASE( g_pGrassTexRV );
SAFE_RELEASE( g_pDirtTexRV );
SAFE_RELEASE( g_pGroundGrassTexRV );
SAFE_RELEASE( g_pMaskTexRV );
SAFE_RELEASE( g_pShadeNormalTexRV );
SAFE_RELEASE( g_pStreamDataVB10 );
SAFE_RELEASE( g_pGrassDataVB10 );
}
void CPatchRData::BuildSide(std::vector<SSideVertex>& vertices, CPatchSideFlags side)
{
ssize_t vsize = PATCH_SIZE + 1;
CTerrain* terrain = m_Patch->m_Parent;
CmpPtr<ICmpWaterManager> cmpWaterManager(*m_Simulation, SYSTEM_ENTITY);
for (ssize_t k = 0; k < vsize; k++)
{
ssize_t gx = m_Patch->m_X * PATCH_SIZE;
ssize_t gz = m_Patch->m_Z * PATCH_SIZE;
switch (side)
{
case CPATCH_SIDE_NEGX: gz += k; break;
case CPATCH_SIDE_POSX: gx += PATCH_SIZE; gz += PATCH_SIZE-k; break;
case CPATCH_SIDE_NEGZ: gx += PATCH_SIZE-k; break;
case CPATCH_SIDE_POSZ: gz += PATCH_SIZE; gx += k; break;
}
CVector3D pos;
terrain->CalcPosition(gx, gz, pos);
// Clamp the height to the water level
float waterHeight = 0.f;
if (cmpWaterManager)
waterHeight = cmpWaterManager->GetExactWaterLevel(pos.X, pos.Z);
pos.Y = std::max(pos.Y, waterHeight);
SSideVertex v0, v1;
v0.m_Position = pos;
v1.m_Position = pos;
v1.m_Position.Y = 0;
// If this is the start of this tristrip, but we've already got a partial
// tristrip, add a couple of degenerate triangles to join the strips properly
if (k == 0 && !vertices.empty())
{
vertices.push_back(vertices.back());
vertices.push_back(v1);
}
// Now add the new triangles
vertices.push_back(v1);
vertices.push_back(v0);
}
}
//--------------------------------------------------------------------------------------
// RenderGrass
//--------------------------------------------------------------------------------------
void RenderGrass( ID3D10Device* pd3dDevice )
{
D3DXMATRIX mWorld;
D3DXMatrixIdentity( &mWorld );
D3DXVECTOR3 vEye;
D3DXVECTOR3 vDir;
D3DXMATRIX mCamWorld;
D3DXMATRIX mView;
D3DXMATRIX mProj;
GetCameraData( &mCamWorld, &mView, &mProj, &vEye, &vDir );
D3DXMATRIX mWVP = mCamWorld * mView * mProj;
// set vb streams
ID3D10Buffer* pBuffers[1];
pBuffers[0] = g_pGrassDataVB10;
UINT strides[1];
strides[0] = sizeof( D3DXVECTOR3 );
UINT offsets[1] = {0};
pd3dDevice->IASetVertexBuffers( 1, 1, pBuffers, strides, offsets );
SetNumVisibleGrassTiles( g_NumGrassTiles );
// set effect variables
g_pmWorldViewProj->SetMatrix( ( float* )&mWVP );
g_pfWorldScale->SetFloat( g_fWorldScale );
g_pfHeightScale->SetFloat( g_fHeightScale );
D3DXVECTOR4 vEye4( vEye, 1 );
g_pvEyePt->SetFloatVector( ( float* )&vEye4 );
g_pfFadeStart->SetFloat( g_fFadeStart );
g_pfFadeEnd->SetFloat( g_fFadeEnd );
g_ptxDiffuse->SetResource( g_pGrassTexRV );
g_ptxHeight->SetResource( g_pHeightTexRV );
g_ptxMask->SetResource( g_pMaskTexRV );
g_ptxShadeNormals->SetResource( g_pShadeNormalTexRV );
ID3D10EffectTechnique* pTechnique = g_pRenderGrass;
pd3dDevice->IASetInputLayout( g_pGrassDecl10 );
D3D10_TECHNIQUE_DESC techDesc;
pTechnique->GetDesc( &techDesc );
for( UINT p = 0; p < techDesc.Passes; p++ )
{
pTechnique->GetPassByIndex( p )->Apply( 0 );
g_Terrain.RenderGrass( &vDir, g_NumGrassTiles );
}
pBuffers[0] = NULL;
pd3dDevice->IASetVertexBuffers( 1, 1, pBuffers, strides, offsets );
}
void CPythonMiniMap::SetCenterPosition(float fCenterX, float fCenterY)
{
m_fCenterX = fCenterX;
m_fCenterY = fCenterY;
CMapOutdoor& rkMap = CPythonBackground::Instance().GetMapOutdoorRef();
for (BYTE byTerrainNum = 0; byTerrainNum < AROUND_AREA_NUM; ++byTerrainNum)
{
m_lpMiniMapTexture[byTerrainNum] = NULL;
CTerrain * pTerrain;
if (rkMap.GetTerrainPointer(byTerrainNum, &pTerrain))
m_lpMiniMapTexture[byTerrainNum] = pTerrain->GetMiniMapTexture();
}
const TOutdoorMapCoordinate & rOutdoorMapCoord = rkMap.GetCurCoordinate();
m_fCenterCellX = (m_fCenterX - (float)(rOutdoorMapCoord.m_sTerrainCoordX * CTerrainImpl::TERRAIN_XSIZE)) / (float)(CTerrainImpl::CELLSCALE);
m_fCenterCellY = (m_fCenterY - (float)(rOutdoorMapCoord.m_sTerrainCoordY * CTerrainImpl::TERRAIN_YSIZE)) / (float)(CTerrainImpl::CELLSCALE);
__SetPosition();
}
void CGameView::CheckLightEnv()
{
if (m->CachedLightEnv == g_LightEnv)
return;
if (m->CachedLightEnv.GetLightingModel() != g_LightEnv.GetLightingModel())
g_Renderer.MakeShadersDirty();
m->CachedLightEnv = g_LightEnv;
CTerrain* pTerrain = m->Game->GetWorld()->GetTerrain();
if (!pTerrain)
return;
PROFILE("update light env");
pTerrain->MakeDirty(RENDERDATA_UPDATE_COLOR);
const std::vector<CUnit*>& units = m->Game->GetWorld()->GetUnitManager().GetUnits();
for (size_t i = 0; i < units.size(); ++i)
units[i]->GetModel().SetDirtyRec(RENDERDATA_UPDATE_COLOR);
}
void TerrainTextureOverlay::RenderAfterWater()
{
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
ssize_t w = (ssize_t)(terrain->GetTilesPerSide() * m_TexelsPerTile);
ssize_t h = (ssize_t)(terrain->GetTilesPerSide() * m_TexelsPerTile);
pglActiveTextureARB(GL_TEXTURE0);
// Recreate the texture with new size if necessary
if (round_up_to_pow2(w) != m_TextureW || round_up_to_pow2(h) != m_TextureH)
{
m_TextureW = round_up_to_pow2(w);
m_TextureH = round_up_to_pow2(h);
glBindTexture(GL_TEXTURE_2D, m_Texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, m_TextureW, m_TextureH, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
u8* data = (u8*)calloc(w * h, 4);
BuildTextureRGBA(data, w, h);
glBindTexture(GL_TEXTURE_2D, m_Texture);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, data);
free(data);
CMatrix3D matrix;
matrix.SetZero();
matrix._11 = m_TexelsPerTile / (m_TextureW * TERRAIN_TILE_SIZE);
matrix._23 = m_TexelsPerTile / (m_TextureH * TERRAIN_TILE_SIZE);
matrix._44 = 1;
g_Renderer.GetTerrainRenderer().RenderTerrainOverlayTexture(matrix);
}
float CMenuMarcher::FindHoverHeight(Vector vecPosition) const
{
CTerrain* pTerrain = DigitanksGame()->GetTerrain();
float flHighestTerrain = pTerrain->GetHeight(vecPosition.x, vecPosition.y);
float flTerrain;
flTerrain = pTerrain->GetHeight(vecPosition.x+2, vecPosition.y+2);
if (flTerrain > flHighestTerrain)
flHighestTerrain = flTerrain;
flTerrain = pTerrain->GetHeight(vecPosition.x+2, vecPosition.y-2);
if (flTerrain > flHighestTerrain)
flHighestTerrain = flTerrain;
flTerrain = pTerrain->GetHeight(vecPosition.x-2, vecPosition.y+2);
if (flTerrain > flHighestTerrain)
flHighestTerrain = flTerrain;
flTerrain = pTerrain->GetHeight(vecPosition.x-2, vecPosition.y-2);
if (flTerrain > flHighestTerrain)
flHighestTerrain = flTerrain;
return flHighestTerrain;
}
void CPatchRData::RenderOutline()
{
CTerrain* terrain = m_Patch->m_Parent;
ssize_t gx = m_Patch->m_X * PATCH_SIZE;
ssize_t gz = m_Patch->m_Z * PATCH_SIZE;
CVector3D pos;
std::vector<CVector3D> line;
ssize_t i, j;
for (i = 0, j = 0; i <= PATCH_SIZE; ++i)
{
terrain->CalcPosition(gx + i, gz + j, pos);
line.push_back(pos);
}
for (i = PATCH_SIZE, j = 1; j <= PATCH_SIZE; ++j)
{
terrain->CalcPosition(gx + i, gz + j, pos);
line.push_back(pos);
}
for (i = PATCH_SIZE-1, j = PATCH_SIZE; i >= 0; --i)
{
terrain->CalcPosition(gx + i, gz + j, pos);
line.push_back(pos);
}
for (i = 0, j = PATCH_SIZE-1; j >= 0; --j)
{
terrain->CalcPosition(gx + i, gz + j, pos);
line.push_back(pos);
}
#if CONFIG2_GLES
#warning TODO: implement CPatchRData::RenderOutlines for GLES
#else
glVertexPointer(3, GL_FLOAT, sizeof(CVector3D), &line[0]);
glDrawArrays(GL_LINE_STRIP, 0, line.size());
#endif
}
float CDigitanksEntity::GetVisibility(CDigitanksPlayer* pPlayer) const
{
CDigitanksGame* pGame = DigitanksGame();
CTerrain* pTerrain = pGame->GetTerrain();
float flConceal = 0.0f;
if (GetsConcealmentBonus() && pTerrain)
{
if (pTerrain->GetBit(CTerrain::WorldToArraySpace(GetGlobalOrigin().x), CTerrain::WorldToArraySpace(GetGlobalOrigin().y), TB_TREE))
flConceal = 0.7f;
}
float flCloak = GetCloakConcealment();
if (flCloak > flConceal)
flConceal = flCloak;
if (HasLostConcealment())
flConceal = 0;
if (pPlayer && pPlayer == GetDigitanksPlayer())
return 1 - flConceal/2;
if (!pGame->ShouldRenderFogOfWar())
{
if (pPlayer && pPlayer->IsHumanControlled())
return 1 - flConceal;
}
if (!pPlayer)
return 0;
float flVisibility = pPlayer->GetEntityVisibility(GetHandle()) - flConceal;
if (flVisibility < 0)
return 0;
return flVisibility;
}
///////////////////////////////////////////////////////////////////
// Calculate our binary heightmap from the terrain heightmap.
void WaterManager::RecomputeDistanceHeightmap()
{
size_t SideSize = m_MapSize*2;
if (m_DistanceHeightmap == NULL)
m_DistanceHeightmap = new float[SideSize*SideSize];
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
// Create a manhattan-distance heightmap.
// This is currently upsampled by a factor of 2 to get more precision
// This could be refined to only be done near the coast itself, but it's probably not necessary.
for (size_t z = 0; z < SideSize; ++z)
{
float level = SideSize;
for (size_t x = 0; x < SideSize; ++x)
m_DistanceHeightmap[z*SideSize + x] = terrain->GetExactGroundLevel(x*2, z*2) >= m_WaterHeight ? level = 0.f : ++level;
level = SideSize;
for (size_t x = SideSize-1; x != (size_t)-1; --x)
{
if (terrain->GetExactGroundLevel(x*2, z*2) >= m_WaterHeight)
level = 0.f;
else
{
++level;
if (level < m_DistanceHeightmap[z*SideSize + x])
m_DistanceHeightmap[z*SideSize + x] = level;
}
}
}
for (size_t x = 0; x < SideSize; ++x)
{
float level = SideSize;
for (size_t z = 0; z < SideSize; ++z)
{
if (terrain->GetExactGroundLevel(x*2, z*2) >= m_WaterHeight)
level = 0.f;
else if (level > m_DistanceHeightmap[z*SideSize + x])
level = m_DistanceHeightmap[z*SideSize + x];
else
{
++level;
if (level < m_DistanceHeightmap[z*SideSize + x])
m_DistanceHeightmap[z*SideSize + x] = level;
}
}
level = SideSize;
for (size_t z = SideSize-1; z != (size_t)-1; --z)
{
if (terrain->GetExactGroundLevel(x*2, z*2) >= m_WaterHeight)
level = 0.f;
else if (level > m_DistanceHeightmap[z*SideSize + x])
level = m_DistanceHeightmap[z*SideSize + x];
else
{
++level;
if (level < m_DistanceHeightmap[z*SideSize + x])
m_DistanceHeightmap[z*SideSize + x] = level;
}
}
}
}
///////////////////////////////////////////////////////////////////
// Calculate the strength of the wind at a given point on the map.
// This is too slow and should support limited recomputation.
void WaterManager::RecomputeWindStrength()
{
if (m_WindStrength == NULL)
m_WindStrength = new float[m_MapSize*m_MapSize];
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
float waterLevel = m_WaterHeight;
CVector2D windDir = CVector2D(cos(m_WindAngle),sin(m_WindAngle));
CVector2D perp = CVector2D(-windDir.Y, windDir.X);
// Our kernel will sample 5 points going towards the wind (generally).
int kernel[5][2] = { {(int)windDir.X*2,(int)windDir.Y*2}, {(int)windDir.X*5,(int)windDir.Y*5}, {(int)windDir.X*9,(int)windDir.Y*9}, {(int)windDir.X*16,(int)windDir.Y*16}, {(int)windDir.X*25,(int)windDir.Y*25} };
float* Temp = new float[m_MapSize*m_MapSize];
std::fill(Temp, Temp + m_MapSize*m_MapSize, 1.0f);
for (size_t j = 0; j < m_MapSize; ++j)
for (size_t i = 0; i < m_MapSize; ++i)
{
float curHeight = terrain->GetVertexGroundLevel(i,j);
if (curHeight >= waterLevel)
{
Temp[j*m_MapSize + i] = 0.3f; // blurs too strong otherwise
continue;
}
if (terrain->GetVertexGroundLevel(i + ceil(windDir.X),j + ceil(windDir.Y)) < waterLevel)
continue;
// Calculate how dampened our waves should be.
float tendency = 0.0f;
float oldHeight = std::max(waterLevel,terrain->GetVertexGroundLevel(i+kernel[4][0],j+kernel[4][1]));
float currentHeight = std::max(waterLevel,terrain->GetVertexGroundLevel(i+kernel[3][0],j+kernel[3][1]));
float avgheight = oldHeight + currentHeight;
tendency = currentHeight - oldHeight;
oldHeight = currentHeight;
currentHeight = std::max(waterLevel,terrain->GetVertexGroundLevel(i+kernel[2][0],j+kernel[2][1]));
avgheight += currentHeight;
tendency += currentHeight - oldHeight;
oldHeight = currentHeight;
currentHeight = std::max(waterLevel,terrain->GetVertexGroundLevel(i+kernel[1][0],j+kernel[1][1]));
avgheight += currentHeight;
tendency += currentHeight - oldHeight;
oldHeight = currentHeight;
currentHeight = std::max(waterLevel,terrain->GetVertexGroundLevel(i+kernel[0][0],j+kernel[0][1]));
avgheight += currentHeight;
tendency += currentHeight - oldHeight;
float baseLevel = std::max(0.0f,1.0f - (avgheight/5.0f-waterLevel)/20.0f);
baseLevel *= baseLevel;
tendency /= 15.0f;
baseLevel -= tendency; // if the terrain was sloping downwards, increase baselevel. Otherwise reduce.
baseLevel = clamp(baseLevel,0.0f,1.0f);
// Draw on map. This is pretty slow.
float length = 35.0f * (1.0f-baseLevel/1.8f);
for (float y = 0; y < length; y += 0.6f)
{
int xx = clamp(i - y * windDir.X,0.0f,(float)(m_MapSize-1));
int yy = clamp(j - y * windDir.Y,0.0f,(float)(m_MapSize-1));
Temp[yy*m_MapSize + xx] = Temp[yy*m_MapSize + xx] < (0.0f+baseLevel/1.5f) * (1.0f-y/length) + y/length * 1.0f ?
Temp[yy*m_MapSize + xx] : (0.0f+baseLevel/1.5f) * (1.0f-y/length) + y/length * 1.0f;
}
}
int blurKernel[4][2] = { {(int)ceil(windDir.X),(int)ceil(windDir.Y)}, {(int)windDir.X*3,(int)windDir.Y*3}, {(int)ceil(perp.X),(int)ceil(perp.Y)}, {(int)-ceil(perp.X),(int)-ceil(perp.Y)} };
float blurValue;
for (size_t j = 2; j < m_MapSize-2; ++j)
for (size_t i = 2; i < m_MapSize-2; ++i)
{
blurValue = Temp[(j+blurKernel[0][1])*m_MapSize + i+blurKernel[0][0]];
blurValue += Temp[(j+blurKernel[0][1])*m_MapSize + i+blurKernel[0][0]];
blurValue += Temp[(j+blurKernel[0][1])*m_MapSize + i+blurKernel[0][0]];
blurValue += Temp[(j+blurKernel[0][1])*m_MapSize + i+blurKernel[0][0]];
m_WindStrength[j*m_MapSize + i] = blurValue * 0.25f;
}
delete[] Temp;
}
void CGameView::Update(const float deltaRealTime)
{
// If camera movement is being handled by the touch-input system,
// then we should stop to avoid conflicting with it
if (g_TouchInput.IsEnabled())
return;
if (!g_app_has_focus)
return;
// TODO: this is probably not an ideal place for this, it should probably go
// in a CCmpWaterManager or some such thing (once such a thing exists)
if (!m->Game->m_Paused)
g_Renderer.GetWaterManager()->m_WaterTexTimer += deltaRealTime;
if (m->TrackManager.IsActive() && m->TrackManager.IsPlaying())
{
if (! m->TrackManager.Update(deltaRealTime))
{
// ResetCamera();
}
return;
}
// Calculate mouse movement
static int mouse_last_x = 0;
static int mouse_last_y = 0;
int mouse_dx = g_mouse_x - mouse_last_x;
int mouse_dy = g_mouse_y - mouse_last_y;
mouse_last_x = g_mouse_x;
mouse_last_y = g_mouse_y;
if (HotkeyIsPressed("camera.rotate.cw"))
m->RotateY.AddSmoothly(m->ViewRotateYSpeed * deltaRealTime);
if (HotkeyIsPressed("camera.rotate.ccw"))
m->RotateY.AddSmoothly(-m->ViewRotateYSpeed * deltaRealTime);
if (HotkeyIsPressed("camera.rotate.up"))
m->RotateX.AddSmoothly(-m->ViewRotateXSpeed * deltaRealTime);
if (HotkeyIsPressed("camera.rotate.down"))
m->RotateX.AddSmoothly(m->ViewRotateXSpeed * deltaRealTime);
float moveRightward = 0.f;
float moveForward = 0.f;
if (HotkeyIsPressed("camera.pan"))
{
moveRightward += m->ViewDragSpeed * mouse_dx;
moveForward += m->ViewDragSpeed * -mouse_dy;
}
if (g_mouse_active)
{
if (g_mouse_x >= g_xres - 2 && g_mouse_x < g_xres)
moveRightward += m->ViewScrollSpeed * deltaRealTime;
else if (g_mouse_x <= 3 && g_mouse_x >= 0)
moveRightward -= m->ViewScrollSpeed * deltaRealTime;
if (g_mouse_y >= g_yres - 2 && g_mouse_y < g_yres)
moveForward -= m->ViewScrollSpeed * deltaRealTime;
else if (g_mouse_y <= 3 && g_mouse_y >= 0)
moveForward += m->ViewScrollSpeed * deltaRealTime;
}
if (HotkeyIsPressed("camera.right"))
moveRightward += m->ViewScrollSpeed * deltaRealTime;
if (HotkeyIsPressed("camera.left"))
moveRightward -= m->ViewScrollSpeed * deltaRealTime;
if (HotkeyIsPressed("camera.up"))
moveForward += m->ViewScrollSpeed * deltaRealTime;
if (HotkeyIsPressed("camera.down"))
moveForward -= m->ViewScrollSpeed * deltaRealTime;
if (g_Joystick.IsEnabled())
{
// This could all be improved with extra speed and sensitivity settings
// (maybe use pow to allow finer control?), and inversion settings
moveRightward += g_Joystick.GetAxisValue(m->JoystickPanX) * m->ViewScrollSpeed * deltaRealTime;
moveForward -= g_Joystick.GetAxisValue(m->JoystickPanY) * m->ViewScrollSpeed * deltaRealTime;
m->RotateX.AddSmoothly(g_Joystick.GetAxisValue(m->JoystickRotateX) * m->ViewRotateXSpeed * deltaRealTime);
m->RotateY.AddSmoothly(-g_Joystick.GetAxisValue(m->JoystickRotateY) * m->ViewRotateYSpeed * deltaRealTime);
// Use a +1 bias for zoom because I want this to work with trigger buttons that default to -1
m->Zoom.AddSmoothly((g_Joystick.GetAxisValue(m->JoystickZoomIn) + 1.0f) / 2.0f * m->ViewZoomSpeed * deltaRealTime);
m->Zoom.AddSmoothly(-(g_Joystick.GetAxisValue(m->JoystickZoomOut) + 1.0f) / 2.0f * m->ViewZoomSpeed * deltaRealTime);
}
if (moveRightward || moveForward)
{
// Break out of following mode when the user starts scrolling
m->FollowEntity = INVALID_ENTITY;
float s = sin(m->RotateY.GetSmoothedValue());
float c = cos(m->RotateY.GetSmoothedValue());
m->PosX.AddSmoothly(c * moveRightward);
m->PosZ.AddSmoothly(-s * moveRightward);
m->PosX.AddSmoothly(s * moveForward);
m->PosZ.AddSmoothly(c * moveForward);
}
if (m->FollowEntity)
{
CmpPtr<ICmpPosition> cmpPosition(*(m->Game->GetSimulation2()), m->FollowEntity);
if (cmpPosition && cmpPosition->IsInWorld())
{
// Get the most recent interpolated position
float frameOffset = m->Game->GetSimulation2()->GetLastFrameOffset();
CMatrix3D transform = cmpPosition->GetInterpolatedTransform(frameOffset, false);
CVector3D pos = transform.GetTranslation();
if (m->FollowFirstPerson)
{
float x, z, angle;
cmpPosition->GetInterpolatedPosition2D(frameOffset, x, z, angle);
float height = 4.f;
m->ViewCamera.m_Orientation.SetIdentity();
m->ViewCamera.m_Orientation.RotateX((float)M_PI/24.f);
m->ViewCamera.m_Orientation.RotateY(angle);
m->ViewCamera.m_Orientation.Translate(pos.X, pos.Y + height, pos.Z);
m->ViewCamera.UpdateFrustum();
return;
}
else
{
// Move the camera to match the unit
CCamera targetCam = m->ViewCamera;
SetupCameraMatrixSmoothRot(m, &targetCam.m_Orientation);
CVector3D pivot = GetSmoothPivot(targetCam);
CVector3D delta = pos - pivot;
m->PosX.AddSmoothly(delta.X);
m->PosY.AddSmoothly(delta.Y);
m->PosZ.AddSmoothly(delta.Z);
}
}
else
{
// The unit disappeared (died or garrisoned etc), so stop following it
m->FollowEntity = INVALID_ENTITY;
}
}
if (HotkeyIsPressed("camera.zoom.in"))
m->Zoom.AddSmoothly(-m->ViewZoomSpeed * deltaRealTime);
if (HotkeyIsPressed("camera.zoom.out"))
m->Zoom.AddSmoothly(m->ViewZoomSpeed * deltaRealTime);
if (m->ConstrainCamera)
m->Zoom.ClampSmoothly(m->ViewZoomMin, m->ViewZoomMax);
float zoomDelta = -m->Zoom.Update(deltaRealTime);
if (zoomDelta)
{
CVector3D forwards = m->ViewCamera.m_Orientation.GetIn();
m->PosX.AddSmoothly(forwards.X * zoomDelta);
m->PosY.AddSmoothly(forwards.Y * zoomDelta);
m->PosZ.AddSmoothly(forwards.Z * zoomDelta);
}
if (m->ConstrainCamera)
m->RotateX.ClampSmoothly(DEGTORAD(m->ViewRotateXMin), DEGTORAD(m->ViewRotateXMax));
FocusHeight(m, true);
// Ensure the ViewCamera focus is inside the map with the chosen margins
// if not so - apply margins to the camera
if (m->ConstrainCamera)
{
CCamera targetCam = m->ViewCamera;
SetupCameraMatrixSmoothRot(m, &targetCam.m_Orientation);
CTerrain* pTerrain = m->Game->GetWorld()->GetTerrain();
CVector3D pivot = GetSmoothPivot(targetCam);
CVector3D delta = targetCam.m_Orientation.GetTranslation() - pivot;
CVector3D desiredPivot = pivot;
CmpPtr<ICmpRangeManager> cmpRangeManager(*m->Game->GetSimulation2(), SYSTEM_ENTITY);
if (cmpRangeManager && cmpRangeManager->GetLosCircular())
{
// Clamp to a circular region around the center of the map
float r = pTerrain->GetMaxX() / 2;
CVector3D center(r, desiredPivot.Y, r);
float dist = (desiredPivot - center).Length();
if (dist > r - CAMERA_EDGE_MARGIN)
desiredPivot = center + (desiredPivot - center).Normalized() * (r - CAMERA_EDGE_MARGIN);
}
else
{
// Clamp to the square edges of the map
desiredPivot.X = Clamp(desiredPivot.X, pTerrain->GetMinX() + CAMERA_EDGE_MARGIN, pTerrain->GetMaxX() - CAMERA_EDGE_MARGIN);
desiredPivot.Z = Clamp(desiredPivot.Z, pTerrain->GetMinZ() + CAMERA_EDGE_MARGIN, pTerrain->GetMaxZ() - CAMERA_EDGE_MARGIN);
}
// Update the position so that pivot is within the margin
m->PosX.SetValueSmoothly(desiredPivot.X + delta.X);
m->PosZ.SetValueSmoothly(desiredPivot.Z + delta.Z);
}
m->PosX.Update(deltaRealTime);
m->PosY.Update(deltaRealTime);
m->PosZ.Update(deltaRealTime);
// Handle rotation around the Y (vertical) axis
{
CCamera targetCam = m->ViewCamera;
SetupCameraMatrixSmooth(m, &targetCam.m_Orientation);
float rotateYDelta = m->RotateY.Update(deltaRealTime);
if (rotateYDelta)
{
// We've updated RotateY, and need to adjust Pos so that it's still
// facing towards the original focus point (the terrain in the center
// of the screen).
CVector3D upwards(0.0f, 1.0f, 0.0f);
CVector3D pivot = GetSmoothPivot(targetCam);
CVector3D delta = targetCam.m_Orientation.GetTranslation() - pivot;
CQuaternion q;
q.FromAxisAngle(upwards, rotateYDelta);
CVector3D d = q.Rotate(delta) - delta;
m->PosX.Add(d.X);
m->PosY.Add(d.Y);
m->PosZ.Add(d.Z);
}
}
// Handle rotation around the X (sideways, relative to camera) axis
{
CCamera targetCam = m->ViewCamera;
SetupCameraMatrixSmooth(m, &targetCam.m_Orientation);
float rotateXDelta = m->RotateX.Update(deltaRealTime);
if (rotateXDelta)
{
CVector3D rightwards = targetCam.m_Orientation.GetLeft() * -1.0f;
CVector3D pivot = GetSmoothPivot(targetCam);
CVector3D delta = targetCam.m_Orientation.GetTranslation() - pivot;
CQuaternion q;
q.FromAxisAngle(rightwards, rotateXDelta);
CVector3D d = q.Rotate(delta) - delta;
m->PosX.Add(d.X);
m->PosY.Add(d.Y);
m->PosZ.Add(d.Z);
}
}
/* This is disabled since it doesn't seem necessary:
// Ensure the camera's near point is never inside the terrain
if (m->ConstrainCamera)
{
CMatrix3D target;
target.SetIdentity();
target.RotateX(m->RotateX.GetValue());
target.RotateY(m->RotateY.GetValue());
target.Translate(m->PosX.GetValue(), m->PosY.GetValue(), m->PosZ.GetValue());
CVector3D nearPoint = target.GetTranslation() + target.GetIn() * defaultNear;
float ground = m->Game->GetWorld()->GetTerrain()->GetExactGroundLevel(nearPoint.X, nearPoint.Z);
float limit = ground + 16.f;
if (nearPoint.Y < limit)
m->PosY.AddSmoothly(limit - nearPoint.Y);
}
*/
m->RotateY.Wrap(-(float)M_PI, (float)M_PI);
// Update the camera matrix
m->ViewCamera.SetProjection(m->ViewNear, m->ViewFar, m->ViewFOV);
SetupCameraMatrixSmooth(m, &m->ViewCamera.m_Orientation);
m->ViewCamera.UpdateFrustum();
}
// Build vertex buffer for water vertices over our patch
void CPatchRData::BuildWater()
{
PROFILE3("build water");
// number of vertices in each direction in each patch
ENSURE((PATCH_SIZE % water_cell_size) == 0);
if (m_VBWater)
{
g_VBMan.Release(m_VBWater);
m_VBWater = 0;
}
if (m_VBWaterIndices)
{
g_VBMan.Release(m_VBWaterIndices);
m_VBWaterIndices = 0;
}
m_WaterBounds.SetEmpty();
// We need to use this to access the water manager or we may not have the
// actual values but some compiled-in defaults
CmpPtr<ICmpWaterManager> cmpWaterManager(*m_Simulation, SYSTEM_ENTITY);
if (!cmpWaterManager)
return;
// Build data for water
std::vector<SWaterVertex> water_vertex_data;
std::vector<GLushort> water_indices;
u16 water_index_map[PATCH_SIZE+1][PATCH_SIZE+1];
memset(water_index_map, 0xFF, sizeof(water_index_map));
// TODO: This is not (yet) exported via the ICmp interface so... we stick to these values which can be compiled in defaults
WaterManager* WaterMgr = g_Renderer.GetWaterManager();
if (WaterMgr->m_NeedsFullReloading && !g_AtlasGameLoop->running)
{
WaterMgr->m_NeedsFullReloading = false;
WaterMgr->CreateSuperfancyInfo(m_Simulation);
}
CPatch* patch = m_Patch;
CTerrain* terrain = patch->m_Parent;
ssize_t mapSize = (size_t)terrain->GetVerticesPerSide();
ssize_t x1 = m_Patch->m_X*PATCH_SIZE;
ssize_t z1 = m_Patch->m_Z*PATCH_SIZE;
// build vertices, uv, and shader varying
for (ssize_t z = 0; z < PATCH_SIZE; z += water_cell_size)
{
for (ssize_t x = 0; x <= PATCH_SIZE; x += water_cell_size)
{
// Check that the edge at x is partially underwater
float startTerrainHeight[2] = { terrain->GetVertexGroundLevel(x+x1, z+z1), terrain->GetVertexGroundLevel(x+x1, z+z1 + water_cell_size) };
float startWaterHeight[2] = { cmpWaterManager->GetExactWaterLevel(x+x1, z+z1), cmpWaterManager->GetExactWaterLevel(x+x1, z+z1 + water_cell_size) };
if (startTerrainHeight[0] >= startWaterHeight[0] && startTerrainHeight[1] >= startWaterHeight[1])
continue;
// Move x back one cell (unless at start of patch), then scan rightwards
bool belowWater = true;
ssize_t stripStart;
for (stripStart = x = std::max(x-water_cell_size, (ssize_t)0); x <= PATCH_SIZE; x += water_cell_size)
{
// If this edge is not underwater, and neither is the previous edge
// (i.e. belowWater == false), then stop this strip since we've reached
// a cell that's entirely above water
float terrainHeight[2] = { terrain->GetVertexGroundLevel(x+x1, z+z1), terrain->GetVertexGroundLevel(x+x1, z+z1 + water_cell_size) };
float waterHeight[2] = { cmpWaterManager->GetExactWaterLevel(x+x1, z+z1), cmpWaterManager->GetExactWaterLevel(x+x1, z+z1 + water_cell_size) };
if (terrainHeight[0] >= waterHeight[0] && terrainHeight[1] >= waterHeight[1])
{
if (!belowWater)
break;
belowWater = false;
}
else
belowWater = true;
// Edge (x,z)-(x,z+1) is at least partially underwater, so extend the water plane strip across it
// Compute vertex data for the 2 points on the edge
for (int j = 0; j < 2; j++)
{
// Check if we already computed this vertex from an earlier strip
if (water_index_map[z+j*water_cell_size][x] != 0xFFFF)
continue;
SWaterVertex vertex;
terrain->CalcPosition(x+x1, z+z1 + j*water_cell_size, vertex.m_Position);
float depth = waterHeight[j] - vertex.m_Position.Y;
vertex.m_Position.Y = waterHeight[j];
m_WaterBounds += vertex.m_Position;
// NB: Usually this factor is view dependent, but for performance reasons
// we do not take it into account with basic non-shader based water.
// Average constant Fresnel effect for non-fancy water
float alpha = clamp(depth / WaterMgr->m_WaterFullDepth + WaterMgr->m_WaterAlphaOffset, WaterMgr->m_WaterAlphaOffset, WaterMgr->m_WaterMaxAlpha);
// Split the depth data across 24 bits, so the fancy-water shader can reconstruct
// the depth value while the simple-water can just use the precomputed alpha
float depthInt = floor(depth);
float depthFrac = depth - depthInt;
vertex.m_DepthData = SColor4ub(
u8(clamp(depthInt, 0.0f, 255.0f)),
u8(clamp(-depthInt, 0.0f, 255.0f)),
u8(clamp(depthFrac*255.0f, 0.0f, 255.0f)),
u8(clamp(alpha*255.0f, 0.0f, 255.0f)));
int tx = x+x1;
int ty = z+z1 + j*water_cell_size;
if (g_AtlasGameLoop->running)
{
// currently no foam is used so push whatever
vertex.m_WaterData = CVector4D(0.0f,0.0f,0.0f,0.0f);
}
else
{
vertex.m_WaterData = CVector4D(WaterMgr->m_WaveX[tx + ty*mapSize],
WaterMgr->m_WaveZ[tx + ty*mapSize],
WaterMgr->m_DistanceToShore[tx + ty*mapSize],
WaterMgr->m_FoamFactor[tx + ty*mapSize]);
}
water_index_map[z+j*water_cell_size][x] = water_vertex_data.size();
water_vertex_data.push_back(vertex);
}
// If this was not the first x in the strip, then add a quad
// using the computed vertex data
if (x <= stripStart)
continue;
water_indices.push_back(water_index_map[z + water_cell_size][x - water_cell_size]);
water_indices.push_back(water_index_map[z][x - water_cell_size]);
water_indices.push_back(water_index_map[z][x]);
water_indices.push_back(water_index_map[z + water_cell_size][x]);
}
}
}
// no vertex buffers if no data generated
if (water_indices.size() == 0)
return;
// allocate vertex buffer
m_VBWater = g_VBMan.Allocate(sizeof(SWaterVertex), water_vertex_data.size(), GL_STATIC_DRAW, GL_ARRAY_BUFFER);
m_VBWater->m_Owner->UpdateChunkVertices(m_VBWater, &water_vertex_data[0]);
// Construct indices buffer
m_VBWaterIndices = g_VBMan.Allocate(sizeof(GLushort), water_indices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
m_VBWaterIndices->m_Owner->UpdateChunkVertices(m_VBWaterIndices, &water_indices[0]);
}
///////////////////////////////////////////////////////////
// This callback is part of the Scene interface
// Submit all objects visible in the given frustum
void CGameView::EnumerateObjects(const CFrustum& frustum, SceneCollector* c)
{
{
PROFILE3("submit terrain");
CTerrain* pTerrain = m->Game->GetWorld()->GetTerrain();
const ssize_t patchesPerSide = pTerrain->GetPatchesPerSide();
// find out which patches will be drawn
for (ssize_t j=0; j<patchesPerSide; j++) {
for (ssize_t i=0; i<patchesPerSide; i++) {
CPatch* patch=pTerrain->GetPatch(i,j); // can't fail
// If the patch is underwater, calculate a bounding box that also contains the water plane
CBoundingBoxAligned bounds = patch->GetWorldBounds();
float waterHeight = g_Renderer.GetWaterManager()->m_WaterHeight + 0.001f;
if(bounds[1].Y < waterHeight) {
bounds[1].Y = waterHeight;
}
if (!m->Culling || frustum.IsBoxVisible (CVector3D(0,0,0), bounds)) {
//c->Submit(patch);
// set the renderstate for this patch
patch->setDrawState(true);
// set the renderstate for the neighbors
CPatch *nPatch;
nPatch = pTerrain->GetPatch(i-1,j-1);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i,j-1);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i+1,j-1);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i-1,j);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i+1,j);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i-1,j+1);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i,j+1);
if(nPatch) nPatch->setDrawState(true);
nPatch = pTerrain->GetPatch(i+1,j+1);
if(nPatch) nPatch->setDrawState(true);
}
}
}
// draw the patches
for (ssize_t j=0; j<patchesPerSide; j++)
{
for (ssize_t i=0; i<patchesPerSide; i++)
{
CPatch* patch=pTerrain->GetPatch(i,j); // can't fail
if(patch->getDrawState() == true)
{
c->Submit(patch);
patch->setDrawState(false);
}
}
}
}
m->Game->GetSimulation2()->RenderSubmit(*c, frustum, m->Culling);
}
void CPatchRData::AddBlend(std::vector<SBlendVertex>& blendVertices, std::vector<u16>& blendIndices,
u16 i, u16 j, u8 shape, CTerrainTextureEntry* texture)
{
CTerrain* terrain = m_Patch->m_Parent;
ssize_t gx = m_Patch->m_X * PATCH_SIZE + i;
ssize_t gz = m_Patch->m_Z * PATCH_SIZE + j;
// uses the current neighbour texture
BlendShape8 shape8;
for (size_t m = 0; m < 8; ++m)
shape8[m] = (shape & (1 << m)) ? 0 : 1;
// calculate the required alphamap and the required rotation of the alphamap from blendshape
unsigned int alphamapflags;
int alphamap = CAlphaMapCalculator::Calculate(shape8, alphamapflags);
// now actually render the blend tile (if we need one)
if (alphamap == -1)
return;
float u0 = texture->m_TerrainAlpha->second.m_AlphaMapCoords[alphamap].u0;
float u1 = texture->m_TerrainAlpha->second.m_AlphaMapCoords[alphamap].u1;
float v0 = texture->m_TerrainAlpha->second.m_AlphaMapCoords[alphamap].v0;
float v1 = texture->m_TerrainAlpha->second.m_AlphaMapCoords[alphamap].v1;
if (alphamapflags & BLENDMAP_FLIPU)
std::swap(u0, u1);
if (alphamapflags & BLENDMAP_FLIPV)
std::swap(v0, v1);
int base = 0;
if (alphamapflags & BLENDMAP_ROTATE90)
base = 1;
else if (alphamapflags & BLENDMAP_ROTATE180)
base = 2;
else if (alphamapflags & BLENDMAP_ROTATE270)
base = 3;
SBlendVertex vtx[4];
vtx[(base + 0) % 4].m_AlphaUVs[0] = u0;
vtx[(base + 0) % 4].m_AlphaUVs[1] = v0;
vtx[(base + 1) % 4].m_AlphaUVs[0] = u1;
vtx[(base + 1) % 4].m_AlphaUVs[1] = v0;
vtx[(base + 2) % 4].m_AlphaUVs[0] = u1;
vtx[(base + 2) % 4].m_AlphaUVs[1] = v1;
vtx[(base + 3) % 4].m_AlphaUVs[0] = u0;
vtx[(base + 3) % 4].m_AlphaUVs[1] = v1;
SBlendVertex dst;
const CLightEnv& lightEnv = g_Renderer.GetLightEnv();
CVector3D normal;
bool cpuLighting = (g_Renderer.GetRenderPath() == CRenderer::RP_FIXED);
size_t index = blendVertices.size();
terrain->CalcPosition(gx, gz, dst.m_Position);
terrain->CalcNormal(gx, gz, normal);
dst.m_Normal = normal;
dst.m_DiffuseColor = cpuLighting ? lightEnv.EvaluateTerrainDiffuseScaled(normal) : lightEnv.EvaluateTerrainDiffuseFactor(normal);
dst.m_AlphaUVs[0] = vtx[0].m_AlphaUVs[0];
dst.m_AlphaUVs[1] = vtx[0].m_AlphaUVs[1];
blendVertices.push_back(dst);
terrain->CalcPosition(gx + 1, gz, dst.m_Position);
terrain->CalcNormal(gx + 1, gz, normal);
dst.m_Normal = normal;
dst.m_DiffuseColor = cpuLighting ? lightEnv.EvaluateTerrainDiffuseScaled(normal) : lightEnv.EvaluateTerrainDiffuseFactor(normal);
dst.m_AlphaUVs[0] = vtx[1].m_AlphaUVs[0];
dst.m_AlphaUVs[1] = vtx[1].m_AlphaUVs[1];
blendVertices.push_back(dst);
terrain->CalcPosition(gx + 1, gz + 1, dst.m_Position);
terrain->CalcNormal(gx + 1, gz + 1, normal);
dst.m_Normal = normal;
dst.m_DiffuseColor = cpuLighting ? lightEnv.EvaluateTerrainDiffuseScaled(normal) : lightEnv.EvaluateTerrainDiffuseFactor(normal);
dst.m_AlphaUVs[0] = vtx[2].m_AlphaUVs[0];
dst.m_AlphaUVs[1] = vtx[2].m_AlphaUVs[1];
blendVertices.push_back(dst);
terrain->CalcPosition(gx, gz + 1, dst.m_Position);
terrain->CalcNormal(gx, gz + 1, normal);
dst.m_Normal = normal;
dst.m_DiffuseColor = cpuLighting ? lightEnv.EvaluateTerrainDiffuseScaled(normal) : lightEnv.EvaluateTerrainDiffuseFactor(normal);
dst.m_AlphaUVs[0] = vtx[3].m_AlphaUVs[0];
dst.m_AlphaUVs[1] = vtx[3].m_AlphaUVs[1];
blendVertices.push_back(dst);
bool dir = terrain->GetTriangulationDir(gx, gz);
if (dir)
{
blendIndices.push_back(index+0);
blendIndices.push_back(index+1);
blendIndices.push_back(index+3);
blendIndices.push_back(index+1);
blendIndices.push_back(index+2);
blendIndices.push_back(index+3);
}
else
{
blendIndices.push_back(index+0);
blendIndices.push_back(index+1);
blendIndices.push_back(index+2);
blendIndices.push_back(index+2);
blendIndices.push_back(index+3);
blendIndices.push_back(index+0);
}
}
void CPatchRData::BuildBlends()
{
PROFILE3("build blends");
m_BlendSplats.clear();
std::vector<SBlendVertex> blendVertices;
std::vector<u16> blendIndices;
CTerrain* terrain = m_Patch->m_Parent;
std::vector<STileBlendStack> blendStacks;
blendStacks.reserve(PATCH_SIZE*PATCH_SIZE);
// For each tile in patch ..
for (ssize_t j = 0; j < PATCH_SIZE; ++j)
{
for (ssize_t i = 0; i < PATCH_SIZE; ++i)
{
ssize_t gx = m_Patch->m_X * PATCH_SIZE + i;
ssize_t gz = m_Patch->m_Z * PATCH_SIZE + j;
std::vector<STileBlend> blends;
blends.reserve(9);
// Compute a blend for every tile in the 3x3 square around this tile
for (size_t n = 0; n < 9; ++n)
{
ssize_t ox = gx + BlendOffsets[n][1];
ssize_t oz = gz + BlendOffsets[n][0];
CMiniPatch* nmp = terrain->GetTile(ox, oz);
if (!nmp)
continue;
STileBlend blend;
blend.m_Texture = nmp->GetTextureEntry();
blend.m_Priority = nmp->GetPriority();
blend.m_TileMask = 1 << n;
blends.push_back(blend);
}
// Sort the blends, highest priority first
std::sort(blends.begin(), blends.end(), STileBlend::DecreasingPriority());
STileBlendStack blendStack;
blendStack.i = i;
blendStack.j = j;
// Put the blends into the tile's stack, merging any adjacent blends with the same texture
for (size_t k = 0; k < blends.size(); ++k)
{
if (!blendStack.blends.empty() && blendStack.blends.back().m_Texture == blends[k].m_Texture)
blendStack.blends.back().m_TileMask |= blends[k].m_TileMask;
else
blendStack.blends.push_back(blends[k]);
}
// Remove blends that are after (i.e. lower priority than) the current tile
// (including the current tile), since we don't want to render them on top of
// the tile's base texture
blendStack.blends.erase(
std::find_if(blendStack.blends.begin(), blendStack.blends.end(), STileBlend::CurrentTile()),
blendStack.blends.end());
blendStacks.push_back(blendStack);
}
}
// Given the blend stack per tile, we want to batch together as many blends as possible.
// Group them into a series of layers (each of which has a single texture):
// (This is effectively a topological sort / linearisation of the partial order induced
// by the per-tile stacks, preferring to make tiles with equal textures adjacent.)
std::vector<SBlendLayer> blendLayers;
while (true)
{
if (!blendLayers.empty())
{
// Try to grab as many tiles as possible that match our current layer,
// from off the blend stacks of all the tiles
CTerrainTextureEntry* tex = blendLayers.back().m_Texture;
for (size_t k = 0; k < blendStacks.size(); ++k)
{
if (!blendStacks[k].blends.empty() && blendStacks[k].blends.back().m_Texture == tex)
{
SBlendLayer::Tile t = { blendStacks[k].i, blendStacks[k].j, blendStacks[k].blends.back().m_TileMask };
blendLayers.back().m_Tiles.push_back(t);
blendStacks[k].blends.pop_back();
}
// (We've already merged adjacent entries of the same texture in each stack,
// so we don't need to bother looping to check the next entry in this stack again)
}
}
// We've grabbed as many tiles as possible; now we need to start a new layer.
// The new layer's texture could come from the back of any non-empty stack;
// choose the longest stack as a heuristic to reduce the number of layers
CTerrainTextureEntry* bestTex = NULL;
size_t bestStackSize = 0;
for (size_t k = 0; k < blendStacks.size(); ++k)
{
if (blendStacks[k].blends.size() > bestStackSize)
{
bestStackSize = blendStacks[k].blends.size();
bestTex = blendStacks[k].blends.back().m_Texture;
}
}
// If all our stacks were empty, we're done
if (bestStackSize == 0)
break;
// Otherwise add the new layer, then loop back and start filling it in
SBlendLayer layer;
layer.m_Texture = bestTex;
blendLayers.push_back(layer);
}
// Now build outgoing splats
m_BlendSplats.resize(blendLayers.size());
for (size_t k = 0; k < blendLayers.size(); ++k)
{
SSplat& splat = m_BlendSplats[k];
splat.m_IndexStart = blendIndices.size();
splat.m_Texture = blendLayers[k].m_Texture;
for (size_t t = 0; t < blendLayers[k].m_Tiles.size(); ++t)
{
SBlendLayer::Tile& tile = blendLayers[k].m_Tiles[t];
AddBlend(blendVertices, blendIndices, tile.i, tile.j, tile.shape, splat.m_Texture);
}
splat.m_IndexCount = blendIndices.size() - splat.m_IndexStart;
}
// Release existing vertex buffer chunks
if (m_VBBlends)
{
g_VBMan.Release(m_VBBlends);
m_VBBlends = 0;
}
if (m_VBBlendIndices)
{
g_VBMan.Release(m_VBBlendIndices);
m_VBBlendIndices = 0;
}
if (blendVertices.size())
{
// Construct vertex buffer
m_VBBlends = g_VBMan.Allocate(sizeof(SBlendVertex), blendVertices.size(), GL_STATIC_DRAW, GL_ARRAY_BUFFER);
m_VBBlends->m_Owner->UpdateChunkVertices(m_VBBlends, &blendVertices[0]);
// Update the indices to include the base offset of the vertex data
for (size_t k = 0; k < blendIndices.size(); ++k)
blendIndices[k] += m_VBBlends->m_Index;
m_VBBlendIndices = g_VBMan.Allocate(sizeof(u16), blendIndices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
m_VBBlendIndices->m_Owner->UpdateChunkVertices(m_VBBlendIndices, &blendIndices[0]);
}
}
//传入pcy为NULL表示释放资源
bool d3dbase::DrawBasicScene(CCourtyard* pcy,IDirect3DDevice9* device, float scale)
{
//定义需要用到的指针、变量
static std::vector<sLitVertex> v; //每个平面的最多顶点数
static std::vector<IDirect3DTexture9*> tex; //平面的纹理
static ID3DXMesh* pMesh[MaxObject]; //模型
static std::vector<D3DMATERIAL9> Mtrls[MaxTexPerObj]; //组成模型的材质
static std::vector<IDirect3DTexture9*> Textures[MaxTexPerObj]; //组成模型的纹理
int i,j;
static bool bfirst = true;
static int nPolys = 0; //平面数
static int nObjs = 0; //模型物体数
static int nTerrain = 0; //地形数
if( pcy == NULL&&bfirst == true)
{
return false;
}
//当传入参数pcy的值为NULL时，释放资源
if(pcy == NULL && bfirst == false)
{
int i;
//释放平面纹理
for(i = 0; i<nPolys; i++)
{
Release<IDirect3DTexture9*>(tex[i]);
}
//释放模型
for(i = 0; i<nObjs; i++)
{
Release<ID3DXMesh*>(pMesh[i]);
}
//释放地形
for(i = 0; i<nTerrain; i++)
{
Delete<CTerrain*>(g_pTerrain[i]);
}
return false;
}
//如果使用纹理，设置混合方式
if( g_useTextures )
{
device->SetTextureStageState( 0, D3DTSS_COLORARG1, D3DTA_TEXTURE );
device->SetTextureStageState( 0, D3DTSS_COLORARG2, D3DTA_DIFFUSE );
device->SetTextureStageState( 0, D3DTSS_COLOROP, D3DTOP_MODULATE );
}
D3DXMATRIX I;
D3DXMatrixIdentity(&I); //产生单位矩阵
device->SetTransform(D3DTS_WORLD, &I); //设置世界坐标,调整作用
nPolys = pcy->m_polyList.size(); //平面数
nObjs = pcy->m_objList.size(); //模型物体数
nTerrain = pcy->m_TerrainList.size(); //地形数
D3DXVECTOR3 lightDirection(0.0f, 1.0f, 0.0f); //创建平行光，创建地形时使用
//第一次运行：加载纹理图，模型，创建地形
if(bfirst)
{
const char * ch;
HRESULT hr;
//若使用纹理，加载纹理图
if(g_useTextures){
IDirect3DTexture9* temttex = NULL;
for( i=0; i<nPolys; i++ )
{
hr = D3DXCreateTextureFromFile( //从文件创建纹理 tex
device,
ch = pcy->m_polyList[i].m_texfile.c_str(),
&temttex);
tex.push_back(temttex);
if(FAILED(hr))
{
throw cGameError("create texture failed");
}
}
}
//加载模型
for( i=0; i<nObjs; i++ )
{
if(LoadXFileMesh(&pMesh[i],pcy->m_objList[i].m_meshfile,device,Mtrls[i],Textures[i]) == false)
{
throw cGameError("create mesh failed");
}
}
//创建、加载地形
for( i=0; i<nTerrain; i++ )
{
CTerrain *pTer = NULL;
D3DXVECTOR3 p(pcy->m_TerrainList[i].m_pos.x,pcy->m_TerrainList[i].m_pos.y,pcy->m_TerrainList[i].m_pos.z);
pTer = new CTerrain(device,pcy->m_TerrainList[i].m_terrainfile,p,
pcy->m_TerrainList[i].m_numVertsPerRow,pcy->m_TerrainList[i].m_numVertsPerCol,
pcy->m_TerrainList[i].m_cellSpacing,pcy->m_TerrainList[i].m_heightScale);
pTer->genTexture(&lightDirection); ////创建纹理并根据每个位置的高度来设置其颜色（纹理颜色）
g_pTerrain.push_back(pTer);
}
bfirst = false;
}
//设置绘画状态
//使用镜面反射
device->SetRenderState( D3DRS_SPECULARENABLE, TRUE );
//自动法向量归一化
device->SetRenderState(D3DRS_NORMALIZENORMALS, true);
//开始画图
//渲染平面
for( i=0; i<nPolys; i++ )
{
if(g_useTextures)
{
device->SetTexture( 0, tex[i]);
device->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_WRAP);
device->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_WRAP);
}
int nVerts = pcy->m_polyList[i].m_nVerts;
sLitVertex tempv;
v.clear();
for( j=0; j<nVerts; j++ )
{
tempv = sLitVertex(
pcy->m_ptList[ pcy->m_polyList[i].m_vList[j].m_ind ],
pcy->m_polyList[i].m_vList[j].m_col,
0,
pcy->m_polyList[i].m_vList[j].m_u,
pcy->m_polyList[i].m_vList[j].m_v );
v.push_back(tempv);
}
// 指定自定义的FVF
//device->SetVertexShader( D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_SPECULAR | D3DFVF_TEX1 );
device->SetFVF( D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_SPECULAR | D3DFVF_TEX1 );
//以三角扇形的格画出平面
device->DrawPrimitiveUP(
D3DPT_TRIANGLEFAN,//三角扇形
pcy->m_polyList[i].m_nVerts - 2,//三角形个数
(void*)&v[0],
sizeof( sLitVertex ) );//
}
//渲染模型
for(i = 0;i<nObjs; i++)
{
D3DXMATRIX World,World1;
//平移
point3 p = pcy->m_objList[i].m_pos;
D3DXMatrixTranslation(&World, p.x,p.y,p.z);
//旋转
float angle = pcy->m_objList[i].m_angle;
D3DXMatrixRotationY(&World1,angle);
//复合变换
D3DXMatrixMultiply(&World,&World1,&World);
//设置世界矩阵
device->SetTransform(D3DTS_WORLD, &World);
for(j = 0; j < Mtrls[i].size(); j++)
{
device->SetMaterial( &Mtrls[i][j] );
device->SetTexture(0, Textures[i][j]);
pMesh[i]->DrawSubset(j);
}
}
//渲染地形
for( i=0; i<nTerrain; i++ )
{
g_pTerrain[i]->draw(&I,false);
}
return true;
}
// Simplistic implementation of the Scene interface
virtual void EnumerateObjects(const CFrustum& frustum, SceneCollector* c)
{
if (GroundEnabled)
{
for (ssize_t pj = 0; pj < Terrain.GetPatchesPerSide(); ++pj)
for (ssize_t pi = 0; pi < Terrain.GetPatchesPerSide(); ++pi)
c->Submit(Terrain.GetPatch(pi, pj));
}
CmpPtr<ICmpVisual> cmpVisual(Simulation2, Entity);
if (cmpVisual)
{
// add selection box outlines manually
if (SelectionBoxEnabled)
{
SelectionBoxOverlay.m_Color = CColor(35/255.f, 86/255.f, 188/255.f, .75f); // pretty blue
SelectionBoxOverlay.m_Thickness = 2;
SimRender::ConstructBoxOutline(cmpVisual->GetSelectionBox(), SelectionBoxOverlay);
c->Submit(&SelectionBoxOverlay);
}
// add origin axis thingy
if (AxesMarkerEnabled)
{
CMatrix3D worldSpaceAxes;
// offset from the ground a little bit to prevent fighting with the floor texture (also note: SetTranslation
// sets the identity 3x3 transformation matrix, which are the world axes)
worldSpaceAxes.SetTranslation(cmpVisual->GetPosition() + CVector3D(0, 0.02f, 0));
SimRender::ConstructAxesMarker(worldSpaceAxes, AxesMarkerOverlays[0], AxesMarkerOverlays[1], AxesMarkerOverlays[2]);
c->Submit(&AxesMarkerOverlays[0]);
c->Submit(&AxesMarkerOverlays[1]);
c->Submit(&AxesMarkerOverlays[2]);
}
// add prop point overlays
if (PropPointsMode > 0 && Props.size() > 0)
{
PropPointOverlays.clear(); // doesn't clear capacity, but should be ok since the number of prop points is usually pretty limited
for (size_t i = 0; i < Props.size(); ++i)
{
CModel::Prop& prop = Props[i];
if (prop.m_Model) // should always be the case
{
// prop point positions are automatically updated during animations etc. by CModel::ValidatePosition
const CMatrix3D& propCoordSystem = prop.m_Model->GetTransform();
SOverlayLine pointGimbal;
pointGimbal.m_Color = CColor(1.f, 0.f, 1.f, 1.f);
SimRender::ConstructGimbal(propCoordSystem.GetTranslation(), 0.05f, pointGimbal);
PropPointOverlays.push_back(pointGimbal);
if (PropPointsMode > 1)
{
// scale the prop axes coord system down a bit to distinguish them from the main world-space axes markers
CMatrix3D displayCoordSystem = propCoordSystem;
displayCoordSystem.Scale(0.5f, 0.5f, 0.5f);
// revert translation scaling
displayCoordSystem._14 = propCoordSystem._14;
displayCoordSystem._24 = propCoordSystem._24;
displayCoordSystem._34 = propCoordSystem._34;
// construct an XYZ axes marker for the prop's coordinate system
SOverlayLine xAxis, yAxis, zAxis;
SimRender::ConstructAxesMarker(displayCoordSystem, xAxis, yAxis, zAxis);
PropPointOverlays.push_back(xAxis);
PropPointOverlays.push_back(yAxis);
PropPointOverlays.push_back(zAxis);
}
}
}
for (size_t i = 0; i < PropPointOverlays.size(); ++i)
{
c->Submit(&PropPointOverlays[i]);
}
}
}
// send a RenderSubmit message so the components can submit their visuals to the renderer
Simulation2.RenderSubmit(*c, frustum, false);
}
//--------------------------------------------------------------------------------------
// Create any D3D9 resources that will live through a device reset (D3DPOOL_MANAGED)
// and aren't tied to the back buffer size
//--------------------------------------------------------------------------------------
HRESULT CALLBACK OnD3D10CreateDevice( ID3D10Device* pd3dDevice, const DXGI_SURFACE_DESC* pBackBufferSurfaceDesc,
void* pUserContext )
{
HRESULT hr;
V_RETURN( g_DialogResourceManager.OnD3D10CreateDevice( pd3dDevice ) );
V_RETURN( g_SettingsDlg.OnD3D10CreateDevice( pd3dDevice ) );
V_RETURN( D3DX10CreateFont( pd3dDevice, 15, 0, FW_BOLD, 1, FALSE, DEFAULT_CHARSET,
OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE,
L"Arial", &g_pFont10 ) );
V_RETURN( D3DX10CreateSprite( pd3dDevice, 512, &g_pSprite10 ) );
g_pTxtHelper = new CDXUTTextHelper( NULL, NULL, g_pFont10, g_pSprite10, 15 );
#define IDC_WIREFRAME 10
g_SampleUI.GetCheckBox( IDC_WIREFRAME )->SetVisible( false );
V_RETURN( LoadEffect10( pd3dDevice ) );
WCHAR str[MAX_PATH];
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Terrain1.bmp" ) );
V_RETURN( g_Terrain.LoadTerrain( str, g_SqrtNumTiles, g_SidesPerTile, g_fWorldScale, g_fHeightScale, 1000, 1.0f,
2.0f ) );
ResetBalls();
// Create a Vertex Decl for the terrain and basic meshes
const D3D10_INPUT_ELEMENT_DESC basiclayout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D10_INPUT_PER_VERTEX_DATA, 0 },
};
D3D10_PASS_DESC PassDesc;
g_pRenderTerrain->GetPassByIndex( 0 )->GetDesc( &PassDesc );
V_RETURN( pd3dDevice->CreateInputLayout( basiclayout, sizeof( basiclayout ) / sizeof( basiclayout[0] ),
PassDesc.pIAInputSignature,
PassDesc.IAInputSignatureSize, &g_pBasicDecl10 ) );
// Create a Vertex Decl for the ball
const D3D10_INPUT_ELEMENT_DESC balllayout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "NORMAL", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 24, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 1, DXGI_FORMAT_R32G32B32_FLOAT, 1, 0, D3D10_INPUT_PER_INSTANCE_DATA, 1 },
};
g_pRenderBall->GetPassByIndex( 0 )->GetDesc( &PassDesc );
V_RETURN( pd3dDevice->CreateInputLayout( balllayout, sizeof( balllayout ) / sizeof( balllayout[0] ),
PassDesc.pIAInputSignature,
PassDesc.IAInputSignatureSize, &g_pBallDecl10 ) );
// Create a Vertex Decl for the grass
const D3D10_INPUT_ELEMENT_DESC grasslayout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 12, D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 1, DXGI_FORMAT_R32G32B32_FLOAT, 1, 0, D3D10_INPUT_PER_INSTANCE_DATA, 1 },
};
g_pRenderGrass->GetPassByIndex( 0 )->GetDesc( &PassDesc );
V_RETURN( pd3dDevice->CreateInputLayout( grasslayout, sizeof( grasslayout ) / sizeof( grasslayout[0] ),
PassDesc.pIAInputSignature,
PassDesc.IAInputSignatureSize, &g_pGrassDecl10 ) );
// Load terrain device objects
V_RETURN( g_Terrain.OnCreateDevice( pd3dDevice ) );
// Load a mesh
g_BallMesh.Create( pd3dDevice, L"PIXWorkshop\\lowpolysphere.sdkmesh" );
g_SkyMesh.Create( pd3dDevice, L"PIXWorkshop\\desertsky.sdkmesh" );
// Create a VB for the stream data
D3D10_BUFFER_DESC BufferDesc;
BufferDesc.ByteWidth = NUM_PLAYERS * sizeof( D3DXVECTOR3 );
BufferDesc.Usage = D3D10_USAGE_DYNAMIC;
BufferDesc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
BufferDesc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
BufferDesc.MiscFlags = 0;
V_RETURN( pd3dDevice->CreateBuffer( &BufferDesc, NULL, &g_pStreamDataVB10 ) );
// Create a VB for the grass instances
BufferDesc.ByteWidth = g_SqrtNumTiles * g_SqrtNumTiles * sizeof( D3DXVECTOR3 );
V_RETURN( pd3dDevice->CreateBuffer( &BufferDesc, NULL, &g_pGrassDataVB10 ) );
// Load a texture for the mesh
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Terrain1.bmp" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pHeightTexRV, NULL ) );
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Terrain1_Norm.dds" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pNormalTexRV, NULL ) );
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\grass_v3_dark_tex.dds" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pGrassTexRV, NULL ) );
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Dirt_Diff.dds" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pDirtTexRV, NULL ) );
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Grass_Diff.dds" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pGroundGrassTexRV, NULL ) );
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Terrain1_Mask.dds" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pMaskTexRV, NULL ) );
V_RETURN( DXUTFindDXSDKMediaFileCch( str, MAX_PATH, L"PIXWorkshop\\Terrain1_ShadeNormals.dds" ) );
V_RETURN( D3DX10CreateShaderResourceViewFromFile( pd3dDevice, str, NULL, NULL, &g_pShadeNormalTexRV, NULL ) );
// Setup the camera's view parameters
D3DXVECTOR3 vecEye( 0.0f, 20.0f, -50.0f );
D3DXVECTOR3 vecAt ( 0.0f, 5.0f, 0.0f );
g_Camera.SetViewParams( &vecEye, &vecAt );
return S_OK;
}
///////////////////////////////////////////////////////////////////
// Create information about the terrain and wave vertices.
void WaterManager::CreateSuperfancyInfo(CSimulation2* simulation)
{
if (m_VBWaves)
{
g_VBMan.Release(m_VBWaves);
m_VBWaves = NULL;
}
if (m_VBWavesIndices)
{
g_VBMan.Release(m_VBWavesIndices);
m_VBWavesIndices = NULL;
}
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
CmpPtr<ICmpWaterManager> cmpWaterManager(*simulation, SYSTEM_ENTITY);
if (!cmpWaterManager)
return; // REALLY shouldn't happen and will most likely crash.
// Using this to get some more optimization on circular maps
CmpPtr<ICmpRangeManager> cmpRangeManager(*simulation, SYSTEM_ENTITY);
if (!cmpRangeManager)
return;
bool circular = cmpRangeManager->GetLosCircular();
float mSize = m_MapSize*m_MapSize;
float halfSize = (m_MapSize/2.0);
// Warning: this won't work with multiple water planes
m_WaterHeight = cmpWaterManager->GetExactWaterLevel(0,0);
// Get the square we want to work on.
size_t Xstart = m_updatei0 >= m_MapSize ? m_MapSize-1 : m_updatei0;
size_t Xend = m_updatei1 >= m_MapSize ? m_MapSize-1 : m_updatei1;
size_t Zstart = m_updatej0 >= m_MapSize ? m_MapSize-1 : m_updatej0;
size_t Zend = m_updatej1 >= m_MapSize ? m_MapSize-1 : m_updatej1;
if (m_WaveX == NULL)
{
m_WaveX = new float[m_MapSize*m_MapSize];
m_WaveZ = new float[m_MapSize*m_MapSize];
m_DistanceToShore = new float[m_MapSize*m_MapSize];
m_FoamFactor = new float[m_MapSize*m_MapSize];
}
u16* heightmap = terrain->GetHeightMap();
// some temporary stuff for wave intensity
// not really used too much right now.
//u8* waveForceHQ = new u8[mapSize*mapSize];
// used to cache terrain normals since otherwise we'd recalculate them a lot (I'm blurring the "normal" map).
// this might be updated to actually cache in the terrain manager but that's not for now.
CVector3D* normals = new CVector3D[m_MapSize*m_MapSize];
// taken out of the bottom loop, blurs the normal map
// To remove if below is reactivated
size_t blurZstart = (int)(Zstart-4) < 0 ? 0 : Zstart - 4;
size_t blurZend = Zend+4 >= m_MapSize ? m_MapSize-1 : Zend + 4;
size_t blurXstart = (int)(Xstart-4) < 0 ? 0 : Xstart - 4;
size_t blurXend = Xend+4 >= m_MapSize ? m_MapSize-1 : Xend + 4;
float ii = blurXstart*4.0f, jj = blurXend*4.0f;
for (size_t j = blurZstart; j < blurZend; ++j, jj += 4.0f)
{
for (size_t i = blurXstart; i < blurXend; ++i, ii += 4.0f)
{
normals[j*m_MapSize + i] = terrain->CalcExactNormal(ii,jj);
}
}
// TODO: reactivate?
/*
// calculate wave force (not really used right now)
// and puts into "normals" the terrain normal at that point
// so as to avoid recalculating terrain normals too often.
for (ssize_t i = 0; i < mapSize; ++i)
{
for (ssize_t j = 0; j < mapSize; ++j)
{
normals[j*mapSize + i] = terrain->CalcExactNormal(((float)i)*4.0f,((float)j)*4.0f);
if (circular && (i-halfSize)*(i-halfSize)+(j-halfSize)*(j-halfSize) > mSize)
{
waveForceHQ[j*mapSize + i] = 255;
continue;
}
u8 color = 0;
for (int v = 0; v <= 18; v += 3){
if (j-v >= 0 && i-v >= 0 && heightmap[(j-v)*mapSize + i-v] > waterHeightInu16)
{
if (color == 0)
color = 5;
else
color++;
}
}
waveForceHQ[j*mapSize + i] = 255 - color * 40;
}
}
*/
// Cache some data to spiral-search for the closest tile that's either coastal or water depending on what we are.
// this is insanely faster.
// I use a define because it's more readable and C++11 doesn't like this otherwise
#define m_MapSize (ssize_t)m_MapSize
ssize_t offset[24] = { -1,1,-m_MapSize,+m_MapSize, -1-m_MapSize,+1-m_MapSize,-1+m_MapSize,1+m_MapSize,
-2,2,-2*m_MapSize,2*m_MapSize,-2-m_MapSize,-2+m_MapSize,2-m_MapSize,2+m_MapSize,
-1-2*m_MapSize,+1-2*m_MapSize,-1+2*m_MapSize,1+2*m_MapSize,
-2-2*m_MapSize,2+2*m_MapSize,-2+2*m_MapSize,2-2*m_MapSize };
float dist[24] = { 1.0f, 1.0f, 1.0f, 1.0f, 1.414f, 1.414f, 1.414f, 1.414f,
2.0f, 2.0f, 2.0f, 2.0f, 2.236f, 2.236f, 2.236f, 2.236f,
2.236f, 2.236f, 2.236f, 2.236f,
2.828f, 2.828f, 2.828f, 2.828f };
#undef m_MapSize
// this creates information for waves and stores it in float arrays. PatchRData then puts it in the vertex info for speed.
CVector3D normal;
for (size_t j = Zstart; j < Zend; ++j)
{
for (size_t i = Xstart; i < Xend; ++i)
{
ssize_t register index = j*m_MapSize + i;
if (circular && (i-halfSize)*(i-halfSize)+(j-halfSize)*(j-halfSize) > mSize)
{
m_WaveX[index] = 0.0f;
m_WaveZ[index] = 0.0f;
m_DistanceToShore[index] = 100;
m_FoamFactor[index] = 0.0f;
continue;
}
float depth = m_WaterHeight - heightmap[index]*HEIGHT_SCALE;
float register distanceToShore = 10000.0f;
// calculation of the distance to the shore.
if (i > 0 && i < m_MapSize-1 && j > 0 && j < m_MapSize-1)
{
// search a 5x5 array with us in the center (do not search me)
// much faster since we spiral search and can just stop once we've found the shore.
// also everything is precomputed and we get exact results instead.
int max = 8;
if (i > 1 && i < m_MapSize-2 && j > 1 && j < m_MapSize-2)
max = 24;
for(int lookupI = 0; lookupI < max;++lookupI)
{
float hereDepth = m_WaterHeight - heightmap[index+offset[lookupI]]*HEIGHT_SCALE;
distanceToShore = hereDepth <= 0 && depth >= 0 ? dist[lookupI] : (depth < 0 ? 1 : distanceToShore);
if (distanceToShore < 5000.0f)
goto FoundShore;
}
} else {
// revert to for and if-based because I can't be bothered to special case all that.
for (int xx = -1; xx <= 1;++xx)
for (int yy = -1; yy <= 1;++yy)
{
if ((int)(i+xx) >= 0 && i+xx < m_MapSize && (int)(j+yy) >= 0 && j+yy < m_MapSize)
{
float hereDepth = m_WaterHeight - heightmap[index+xx+yy*m_MapSize]*HEIGHT_SCALE;
distanceToShore = (hereDepth < 0 && sqrt((double)xx*xx+yy*yy) < distanceToShore) ? sqrt((double)xx*xx+yy*yy) : distanceToShore;
}
}
}
// speedup with default values for land squares
if (distanceToShore > 5000.0f)
{
m_WaveX[index] = 0.0f;
m_WaveZ[index] = 0.0f;
m_DistanceToShore[index] = 100.0f;
m_FoamFactor[index] = 0.0f;
continue;
}
FoundShore:
// We'll compute the normals and the "water raise", to know about foam
// Normals are a pretty good calculation but it's slow since we normalize so much.
normal.X = normal.Y = normal.Z = 0.0f;
int waterRaise = 0;
for (size_t yy = (int(j-3) < 0 ? 0 : j-3); yy <= (j+3 < m_MapSize-1 ? 0 : j-3); yy += 2)
{
for (size_t xx = (int(i-3) < 0 ? 0 : i-3); xx <= (i+3 < m_MapSize-1 ? 0 : i+3); xx += 2) // every 2 tile is good enough.
{
normal += normals[yy*m_MapSize + xx];
waterRaise += (heightmap[index]*HEIGHT_SCALE - heightmap[yy*m_MapSize + xx]) > 0 ? (heightmap[index]*HEIGHT_SCALE - heightmap[yy*m_MapSize + xx]) : 0;
}
}
// normalizes the terrain info to avoid foam moving at too different speeds.
normal *= 0.08f; // divide by about 11.
normal[1] = 0.1f;
normal = normal.Normalized();
m_WaveX[index] = normal[0];
m_WaveZ[index] = normal[2];
// distance is /5.0 to be a [0,1] value.
m_DistanceToShore[index] = distanceToShore;
// computing the amount of foam I want
depth = clamp(depth,0.0f,10.0f);
float foamAmount = (waterRaise/255.0f) * (1.0f - depth/10.0f) /** (waveForceHQ[j*m_MapSize+i]/255.0f)*/ * (m_Waviness/8.0f);
foamAmount += clamp(m_Waviness/2.0f,0.0f,m_Waviness/2.0f)/(m_Waviness/2.0f) * clamp(m_Waviness/9.0f,0.3f,1.0f);
foamAmount *= (m_Waviness/4.0f - distanceToShore);
foamAmount = foamAmount > 1.0f ? 1.0f: (foamAmount < 0.0f ? 0.0f : foamAmount);
m_FoamFactor[index] = foamAmount;
}
}
delete[] normals;
//delete[] waveForceHQ;
// TODO: reactivate this with something that looks good and is efficient.
/*
// okay let's create the waves squares. i'll divide the map in arbitrary squares
// For each of these squares, check if waves are needed.
// If yes, look for the best positionning (in order to have a nice blending with the shore)
// Then clean-up: remove squares that are too close to each other
std::vector<CVector2D> waveSquares;
int size = 8; // I think this is the size of the squares.
for (size_t j = 0; j < m_MapSize/size; ++j)
{
for (size_t i = 0; i < m_MapSize/size; ++i)
{
int landTexel = 0;
int waterTexel = 0;
CVector3D avnormal (0.0f,0.0f,0.0f);
CVector2D landPosition(0.0f,0.0f);
CVector2D waterPosition(0.0f,0.0f);
for (int yy = 0; yy < size; ++yy)
{
for (int xx = 0; xx < size; ++xx)
{
if (terrain->GetVertexGroundLevel(i*size+xx,j*size+yy) > m_WaterHeight)
{
landTexel++;
landPosition += CVector2D(i*size+xx,j*size+yy);
}
else
{
waterPosition += CVector2D(i*size+xx,j*size+yy);
waterTexel++;
avnormal += terrain->CalcExactNormal( (i*size+xx)*4.0f,(j*size+yy)*4.0f);
}
}
}
if (landTexel < size/2)
continue;
landPosition /= landTexel;
waterPosition /= waterTexel;
avnormal[1] = 1.0f;
avnormal.Normalize();
avnormal[1] = 0.0f;
// this should help ensure that the shore is pretty flat.
if (avnormal.Length() <= 0.2f)
continue;
// To get the best position for squares, I start at the mean "ocean" position
// And step by step go to the mean "land" position. I keep the position where I change from water to land.
// If this never happens, the square is scrapped.
if (terrain->GetExactGroundLevel(waterPosition.X*4.0f,waterPosition.Y*4.0f) > m_WaterHeight)
continue;
CVector2D squarePos(-1,-1);
for (u8 i = 0; i < 40; i++)
{
squarePos = landPosition * (i/40.0f) + waterPosition * (1.0f-(i/40.0f));
if (terrain->GetExactGroundLevel(squarePos.X*4.0f,squarePos.Y*4.0f) > m_WaterHeight)
break;
}
if (squarePos.X == -1)
continue;
u8 enter = 1;
// okaaaaaay. Got a square. Check for proximity.
for (unsigned long i = 0; i < waveSquares.size(); i++)
{
if ( CVector2D(waveSquares[i]-squarePos).LengthSquared() < 80) {
enter = 0;
break;
}
}
if (enter == 1)
waveSquares.push_back(squarePos);
}
}
// Actually create the waves' meshes.
std::vector<SWavesVertex> waves_vertex_data;
std::vector<GLushort> waves_indices;
// loop through each square point. Look in the square around it, calculate the normal
// create the square.
for (unsigned long i = 0; i < waveSquares.size(); i++)
{
CVector2D pos(waveSquares[i]);
CVector3D avgnorm(0.0f,0.0f,0.0f);
for (int yy = -size/2; yy < size/2; ++yy)
{
for (int xx = -size/2; xx < size/2; ++xx)
{
avgnorm += terrain->CalcExactNormal((pos.X+xx)*4.0f,(pos.Y+yy)*4.0f);
}
}
avgnorm[1] = 0.1f;
// okay crank out a square.
// we have the direction of the square. We'll get the perpendicular vector too
CVector2D perp(-avgnorm[2],avgnorm[0]);
perp = perp.Normalized();
avgnorm = avgnorm.Normalized();
GLushort index[4];
SWavesVertex vertex[4];
vertex[0].m_Position = CVector3D(pos.X + perp.X*(size/2.2f) - avgnorm[0]*1.0f, 0.0f,pos.Y + perp.Y*(size/2.2f) - avgnorm[2]*1.0f);
vertex[0].m_Position *= 4.0f;
vertex[0].m_Position.Y = m_WaterHeight + 1.0f;
vertex[0].m_UV[1] = 1;
vertex[0].m_UV[0] = 0;
index[0] = waves_vertex_data.size();
waves_vertex_data.push_back(vertex[0]);
vertex[1].m_Position = CVector3D(pos.X - perp.X*(size/2.2f) - avgnorm[0]*1.0f, 0.0f,pos.Y - perp.Y*(size/2.2f) - avgnorm[2]*1.0f);
vertex[1].m_Position *= 4.0f;
vertex[1].m_Position.Y = m_WaterHeight + 1.0f;
vertex[1].m_UV[1] = 1;
vertex[1].m_UV[0] = 1;
index[1] = waves_vertex_data.size();
waves_vertex_data.push_back(vertex[1]);
vertex[3].m_Position = CVector3D(pos.X + perp.X*(size/2.2f) + avgnorm[0]*(size/1.5f), 0.0f,pos.Y + perp.Y*(size/2.2f) + avgnorm[2]*(size/1.5f));
vertex[3].m_Position *= 4.0f;
vertex[3].m_Position.Y = m_WaterHeight + 1.0f;
vertex[3].m_UV[1] = 0;
vertex[3].m_UV[0] = 0;
index[3] = waves_vertex_data.size();
waves_vertex_data.push_back(vertex[3]);
vertex[2].m_Position = CVector3D(pos.X - perp.X*(size/2.2f) + avgnorm[0]*(size/1.5f), 0.0f,pos.Y - perp.Y*(size/2.2f) + avgnorm[2]*(size/1.5f));
vertex[2].m_Position *= 4.0f;
vertex[2].m_Position.Y = m_WaterHeight + 1.0f;
vertex[2].m_UV[1] = 0;
vertex[2].m_UV[0] = 1;
index[2] = waves_vertex_data.size();
waves_vertex_data.push_back(vertex[2]);
waves_indices.push_back(index[0]);
waves_indices.push_back(index[1]);
waves_indices.push_back(index[2]);
waves_indices.push_back(index[2]);
waves_indices.push_back(index[3]);
waves_indices.push_back(index[0]);
}
// no vertex buffers if no data generated
if (waves_indices.empty())
return;
// waves
// allocate vertex buffer
m_VBWaves = g_VBMan.Allocate(sizeof(SWavesVertex), waves_vertex_data.size(), GL_STATIC_DRAW, GL_ARRAY_BUFFER);
m_VBWaves->m_Owner->UpdateChunkVertices(m_VBWaves, &waves_vertex_data[0]);
// Construct indices buffer
m_VBWavesIndices = g_VBMan.Allocate(sizeof(GLushort), waves_indices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
m_VBWavesIndices->m_Owner->UpdateChunkVertices(m_VBWavesIndices, &waves_indices[0]);
*/
}
// This requires m_DistanceHeightmap to be defined properly.
void WaterManager::CreateWaveMeshes()
{
size_t SideSize = m_MapSize*2;
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
for (WaveObject* const& obj : m_ShoreWaves)
{
if (obj->m_VBvertices)
g_VBMan.Release(obj->m_VBvertices);
delete obj;
}
m_ShoreWaves.clear();
if (m_ShoreWaves_VBIndices)
{
g_VBMan.Release(m_ShoreWaves_VBIndices);
m_ShoreWaves_VBIndices = NULL;
}
if (m_Waviness < 5.0f && m_WaterType != L"ocean")
return;
// First step: get the points near the coast.
std::set<int> CoastalPointsSet;
for (size_t z = 1; z < SideSize-1; ++z)
for (size_t x = 1; x < SideSize-1; ++x)
if (fabs(m_DistanceHeightmap[z*SideSize + x]-1.0f) < 0.2f)
CoastalPointsSet.insert(z*SideSize + x);
// Second step: create chains out of those coastal points.
static const int around[8][2] = { { -1,-1 }, { -1,0 }, { -1,1 }, { 0,1 }, { 1,1 }, { 1,0 }, { 1,-1 }, { 0,-1 } };
std::vector<std::deque<CoastalPoint> > CoastalPointsChains;
while (!CoastalPointsSet.empty())
{
int index = *(CoastalPointsSet.begin());
int x = index % SideSize;
int y = (index - x ) / SideSize;
std::deque<CoastalPoint> Chain;
Chain.push_front(CoastalPoint(index,CVector2D(x*2,y*2)));
// Erase us.
CoastalPointsSet.erase(CoastalPointsSet.begin());
// We're our starter points. At most we can have 2 points close to us.
// We'll pick the first one and look for its neighbors (he can only have one new)
// Up until we either reach the end of the chain, or ourselves.
// Then go down the other direction if there is any.
int neighbours[2] = { -1, -1 };
int nbNeighb = 0;
for (int i = 0; i < 8; ++i)
{
if (CoastalPointsSet.count(x + around[i][0] + (y + around[i][1])*SideSize))
{
if (nbNeighb < 2)
neighbours[nbNeighb] = x + around[i][0] + (y + around[i][1])*SideSize;
++nbNeighb;
}
}
if (nbNeighb > 2)
continue;
for (int i = 0; i < 2; ++i)
{
if (neighbours[i] == -1)
continue;
// Move to our neighboring point
int xx = neighbours[i] % SideSize;
int yy = (neighbours[i] - xx ) / SideSize;
int indexx = xx + yy*SideSize;
int endedChain = false;
if (i == 0)
Chain.push_back(CoastalPoint(indexx,CVector2D(xx*2,yy*2)));
else
Chain.push_front(CoastalPoint(indexx,CVector2D(xx*2,yy*2)));
// If there's a loop we'll be the "other" neighboring point already so check for that.
// We'll readd at the end/front the other one to have full squares.
if (CoastalPointsSet.count(indexx) == 0)
break;
CoastalPointsSet.erase(indexx);
// Start checking from there.
while(!endedChain)
{
bool found = false;
nbNeighb = 0;
for (int p = 0; p < 8; ++p)
{
if (CoastalPointsSet.count(xx+around[p][0] + (yy + around[p][1])*SideSize))
{
if (nbNeighb >= 2)
{
CoastalPointsSet.erase(xx + yy*SideSize);
continue;
}
++nbNeighb;
// We've found a new point around us.
// Move there
xx = xx + around[p][0];
yy = yy + around[p][1];
indexx = xx + yy*SideSize;
if (i == 0)
Chain.push_back(CoastalPoint(indexx,CVector2D(xx*2,yy*2)));
else
Chain.push_front(CoastalPoint(indexx,CVector2D(xx*2,yy*2)));
CoastalPointsSet.erase(xx + yy*SideSize);
found = true;
break;
}
}
if (!found)
endedChain = true;
}
}
if (Chain.size() > 10)
CoastalPointsChains.push_back(Chain);
}
// (optional) third step: Smooth chains out.
// This is also really dumb.
for (size_t i = 0; i < CoastalPointsChains.size(); ++i)
{
// Bump 1 for smoother.
for (int p = 0; p < 3; ++p)
{
for (size_t j = 1; j < CoastalPointsChains[i].size()-1; ++j)
{
CVector2D realPos = CoastalPointsChains[i][j-1].position + CoastalPointsChains[i][j+1].position;
CoastalPointsChains[i][j].position = (CoastalPointsChains[i][j].position + realPos/2.0f)/2.0f;
}
}
}
// Fourth step: create waves themselves, using those chains. We basically create subchains.
size_t waveSizes = 14; // maximal size in width.
// Construct indices buffer (we can afford one for all of them)
std::vector<GLushort> water_indices;
for (size_t a = 0; a < waveSizes-1;++a)
{
for (size_t rect = 0; rect < 7; ++rect)
{
water_indices.push_back(a*9 + rect);
water_indices.push_back(a*9 + 9 + rect);
water_indices.push_back(a*9 + 1 + rect);
water_indices.push_back(a*9 + 9 + rect);
water_indices.push_back(a*9 + 10 + rect);
water_indices.push_back(a*9 + 1 + rect);
}
}
// Generic indexes, max-length
m_ShoreWaves_VBIndices = g_VBMan.Allocate(sizeof(GLushort), water_indices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
m_ShoreWaves_VBIndices->m_Owner->UpdateChunkVertices(m_ShoreWaves_VBIndices, &water_indices[0]);
float diff = (rand() % 50) / 5.0f;
for (size_t i = 0; i < CoastalPointsChains.size(); ++i)
{
for (size_t j = 0; j < CoastalPointsChains[i].size()-waveSizes; ++j)
{
if (CoastalPointsChains[i].size()- 1 - j < waveSizes)
break;
size_t width = waveSizes;
// First pass to get some parameters out.
float outmost = 0.0f; // how far to move on the shore.
float avgDepth = 0.0f;
int sign = 1;
CVector2D firstPerp(0,0), perp(0,0), lastPerp(0,0);
for (size_t a = 0; a < waveSizes;++a)
{
lastPerp = perp;
perp = CVector2D(0,0);
int nb = 0;
CVector2D pos = CoastalPointsChains[i][j+a].position;
CVector2D posPlus;
CVector2D posMinus;
if (a > 0)
{
++nb;
posMinus = CoastalPointsChains[i][j+a-1].position;
perp += pos-posMinus;
}
if (a < waveSizes-1)
{
++nb;
posPlus = CoastalPointsChains[i][j+a+1].position;
perp += posPlus-pos;
}
perp /= nb;
perp = CVector2D(-perp.Y,perp.X).Normalized();
if (a == 0)
firstPerp = perp;
if ( a > 1 && perp.Dot(lastPerp) < 0.90f && perp.Dot(firstPerp) < 0.70f)
{
width = a+1;
break;
}
if (m_BlurredNormalMap[ (int)(pos.X/4) + (int)(pos.Y/4)*m_MapSize].Y < 0.9)
{
width = a-1;
break;
}
if (terrain->GetExactGroundLevel(pos.X+perp.X*1.5f, pos.Y+perp.Y*1.5f) > m_WaterHeight)
sign = -1;
avgDepth += terrain->GetExactGroundLevel(pos.X+sign*perp.X*20.0f, pos.Y+sign*perp.Y*20.0f) - m_WaterHeight;
float localOutmost = -2.0f;
while (localOutmost < 0.0f)
{
float depth = terrain->GetExactGroundLevel(pos.X+sign*perp.X*localOutmost, pos.Y+sign*perp.Y*localOutmost) - m_WaterHeight;
if (depth < 0.0f || depth > 0.6f)
localOutmost += 0.2f;
else
break;
}
outmost += localOutmost;
}
if (width < 5)
{
j += 6;
continue;
}
outmost /= width;
if (outmost > -0.5f)
{
j += 3;
continue;
}
outmost = -0.5f + outmost * m_Waviness/10.0f;
avgDepth /= width;
if (avgDepth > -1.3f)
{
j += 3;
continue;
}
// we passed the checks, we can create a wave of size "width".
WaveObject* shoreWave = new WaveObject;
std::vector<SWavesVertex> vertices;
shoreWave->m_Width = width;
shoreWave->m_TimeDiff = diff;
diff += (rand() % 100) / 25.0f + 4.0f;
for (size_t a = 0; a < width;++a)
{
CVector2D perp = CVector2D(0,0);
int nb = 0;
CVector2D pos = CoastalPointsChains[i][j+a].position;
CVector2D posPlus;
CVector2D posMinus;
if (a > 0)
{
++nb;
posMinus = CoastalPointsChains[i][j+a-1].position;
perp += pos-posMinus;
}
if (a < waveSizes-1)
{
++nb;
posPlus = CoastalPointsChains[i][j+a+1].position;
perp += posPlus-pos;
}
perp /= nb;
perp = CVector2D(-perp.Y,perp.X).Normalized();
SWavesVertex point[9];
float baseHeight = 0.04f;
float halfWidth = (width-1.0f)/2.0f;
float sideNess = sqrtf(clamp( (halfWidth - fabsf(a-halfWidth))/3.0f, 0.0f,1.0f));
point[0].m_UV[0] = a; point[0].m_UV[1] = 8;
point[1].m_UV[0] = a; point[1].m_UV[1] = 7;
point[2].m_UV[0] = a; point[2].m_UV[1] = 6;
point[3].m_UV[0] = a; point[3].m_UV[1] = 5;
point[4].m_UV[0] = a; point[4].m_UV[1] = 4;
point[5].m_UV[0] = a; point[5].m_UV[1] = 3;
point[6].m_UV[0] = a; point[6].m_UV[1] = 2;
point[7].m_UV[0] = a; point[7].m_UV[1] = 1;
point[8].m_UV[0] = a; point[8].m_UV[1] = 0;
point[0].m_PerpVect = perp;
point[1].m_PerpVect = perp;
point[2].m_PerpVect = perp;
point[3].m_PerpVect = perp;
point[4].m_PerpVect = perp;
point[5].m_PerpVect = perp;
point[6].m_PerpVect = perp;
point[7].m_PerpVect = perp;
point[8].m_PerpVect = perp;
static const float perpT1[9] = { 6.0f, 6.05f, 6.1f, 6.2f, 6.3f, 6.4f, 6.5f, 6.6f, 9.7f };
static const float perpT2[9] = { 2.0f, 2.1f, 2.2f, 2.3f, 2.4f, 3.0f, 3.3f, 3.6f, 9.5f };
static const float perpT3[9] = { 1.1f, 0.7f, -0.2f, 0.0f, 0.6f, 1.3f, 2.2f, 3.6f, 9.0f };
static const float perpT4[9] = { 2.0f, 2.1f, 1.2f, 1.5f, 1.7f, 1.9f, 2.7f, 3.8f, 9.0f };
static const float heightT1[9] = { 0.0f, 0.2f, 0.5f, 0.8f, 0.9f, 0.85f, 0.6f, 0.2f, 0.0 };
static const float heightT2[9] = { -0.8f, -0.4f, 0.0f, 0.1f, 0.1f, 0.03f, 0.0f, 0.0f, 0.0 };
static const float heightT3[9] = { 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0 };
for (size_t t = 0; t < 9; ++t)
{
float terrHeight = 0.05f + terrain->GetExactGroundLevel(pos.X+sign*perp.X*(perpT1[t]+outmost),
pos.Y+sign*perp.Y*(perpT1[t]+outmost));
point[t].m_BasePosition = CVector3D(pos.X+sign*perp.X*(perpT1[t]+outmost), baseHeight + heightT1[t]*sideNess + std::max(m_WaterHeight,terrHeight),
pos.Y+sign*perp.Y*(perpT1[t]+outmost));
}
for (size_t t = 0; t < 9; ++t)
{
float terrHeight = 0.05f + terrain->GetExactGroundLevel(pos.X+sign*perp.X*(perpT2[t]+outmost),
pos.Y+sign*perp.Y*(perpT2[t]+outmost));
point[t].m_ApexPosition = CVector3D(pos.X+sign*perp.X*(perpT2[t]+outmost), baseHeight + heightT1[t]*sideNess + std::max(m_WaterHeight,terrHeight),
pos.Y+sign*perp.Y*(perpT2[t]+outmost));
}
for (size_t t = 0; t < 9; ++t)
{
float terrHeight = 0.05f + terrain->GetExactGroundLevel(pos.X+sign*perp.X*(perpT3[t]+outmost*sideNess),
pos.Y+sign*perp.Y*(perpT3[t]+outmost*sideNess));
point[t].m_SplashPosition = CVector3D(pos.X+sign*perp.X*(perpT3[t]+outmost*sideNess), baseHeight + heightT2[t]*sideNess + std::max(m_WaterHeight,terrHeight), pos.Y+sign*perp.Y*(perpT3[t]+outmost*sideNess));
}
for (size_t t = 0; t < 9; ++t)
{
float terrHeight = 0.05f + terrain->GetExactGroundLevel(pos.X+sign*perp.X*(perpT4[t]+outmost),
pos.Y+sign*perp.Y*(perpT4[t]+outmost));
point[t].m_RetreatPosition = CVector3D(pos.X+sign*perp.X*(perpT4[t]+outmost), baseHeight + heightT3[t]*sideNess + std::max(m_WaterHeight,terrHeight),
pos.Y+sign*perp.Y*(perpT4[t]+outmost));
}
vertices.push_back(point[8]);
vertices.push_back(point[7]);
vertices.push_back(point[6]);
vertices.push_back(point[5]);
vertices.push_back(point[4]);
vertices.push_back(point[3]);
vertices.push_back(point[2]);
vertices.push_back(point[1]);
vertices.push_back(point[0]);
shoreWave->m_AABB += point[8].m_SplashPosition;
shoreWave->m_AABB += point[8].m_BasePosition;
shoreWave->m_AABB += point[0].m_SplashPosition;
shoreWave->m_AABB += point[0].m_BasePosition;
shoreWave->m_AABB += point[4].m_ApexPosition;
}
if (sign == 1)
{
// Let's do some fancy reversing.
std::vector<SWavesVertex> reversed;
for (int a = width-1; a >= 0; --a)
{
for (size_t t = 0; t < 9; ++t)
reversed.push_back(vertices[a*9+t]);
}
vertices = reversed;
}
j += width/2-1;
shoreWave->m_VBvertices = g_VBMan.Allocate(sizeof(SWavesVertex), vertices.size(), GL_STATIC_DRAW, GL_ARRAY_BUFFER);
shoreWave->m_VBvertices->m_Owner->UpdateChunkVertices(shoreWave->m_VBvertices, &vertices[0]);
m_ShoreWaves.push_back(shoreWave);
}
}
}
///////////////////////////////////////////////////////////////////
// Create information about the terrain and wave vertices.
void WaterManager::CreateSuperfancyInfo(CSimulation2* simulation)
{
if (m_VBWaves)
{
g_VBMan.Release(m_VBWaves);
m_VBWaves = NULL;
}
if (m_VBWavesIndices)
{
g_VBMan.Release(m_VBWavesIndices);
m_VBWavesIndices = NULL;
}
CTerrain* terrain = g_Game->GetWorld()->GetTerrain();
ssize_t mapSize = terrain->GetVerticesPerSide();
CmpPtr<ICmpWaterManager> cmpWaterManager(*simulation, SYSTEM_ENTITY);
if (!cmpWaterManager)
return; // REALLY shouldn't happen and will most likely crash.
// Using this to get some more optimization on circular maps
CmpPtr<ICmpRangeManager> cmpRangeManager(*simulation, SYSTEM_ENTITY);
if (!cmpRangeManager)
return;
bool circular = cmpRangeManager->GetLosCircular();
float mSize = mapSize*mapSize;
float halfSize = (mapSize/2.0);
// Warning: this won't work with multiple water planes
m_WaterHeight = cmpWaterManager->GetExactWaterLevel(0,0);
// TODO: change this whenever we incrementally update because it's def. not too efficient
delete[] m_WaveX;
delete[] m_WaveZ;
delete[] m_DistanceToShore;
delete[] m_FoamFactor;
m_WaveX = new float[mapSize*mapSize];
m_WaveZ = new float[mapSize*mapSize];
m_DistanceToShore = new float[mapSize*mapSize];
m_FoamFactor = new float[mapSize*mapSize];
u16* heightmap = terrain->GetHeightMap();
// some temporary stuff for wave intensity
// not really used too much right now.
u8* waveForceHQ = new u8[mapSize*mapSize];
u16 waterHeightInu16 = m_WaterHeight/HEIGHT_SCALE;
// used to cache terrain normals since otherwise we'd recalculate them a lot (I'm blurring the "normal" map).
// this might be updated to actually cache in the terrain manager but that's not for now.
CVector3D* normals = new CVector3D[mapSize*mapSize];
// calculate wave force (not really used right now)
// and puts into "normals" the terrain normal at that point
// so as to avoid recalculating terrain normals too often.
for (ssize_t i = 0; i < mapSize; ++i)
{
for (ssize_t j = 0; j < mapSize; ++j)
{
normals[j*mapSize + i] = terrain->CalcExactNormal(((float)i)*4.0f,((float)j)*4.0f);
if (circular && (i-halfSize)*(i-halfSize)+(j-halfSize)*(j-halfSize) > mSize)
{
waveForceHQ[j*mapSize + i] = 255;
continue;
}
u8 color = 0;
for (int v = 0; v <= 18; v += 3){
if (j-v >= 0 && i-v >= 0 && heightmap[(j-v)*mapSize + i-v] > waterHeightInu16)
{
if (color == 0)
color = 5;
else
color++;
}
}
waveForceHQ[j*mapSize + i] = 255 - color * 40;
}
}
// this creates information for waves and stores it in float arrays. PatchRData then puts it in the vertex info for speed.
for (ssize_t i = 0; i < mapSize; ++i)
{
for (ssize_t j = 0; j < mapSize; ++j)
{
if (circular && (i-halfSize)*(i-halfSize)+(j-halfSize)*(j-halfSize) > mSize)
{
m_WaveX[j*mapSize + i] = 0.0f;
m_WaveZ[j*mapSize + i] = 0.0f;
m_DistanceToShore[j*mapSize + i] = 100;
m_FoamFactor[j*mapSize + i] = 0.0f;
continue;
}
float depth = m_WaterHeight - heightmap[j*mapSize + i]*HEIGHT_SCALE;
int distanceToShore = 10000;
// calculation of the distance to the shore.
// TODO: this is fairly dumb, though it returns a good result
// Could be sped up a fair bit.
if (depth >= 0)
{
// check in the square around.
for (int xx = -5; xx <= 5; ++xx)
{
for (int yy = -5; yy <= 5; ++yy)
{
if (i+xx >= 0 && i + xx < mapSize)
if (j + yy >= 0 && j + yy < mapSize)
{
float hereDepth = m_WaterHeight - heightmap[(j+yy)*mapSize + (i+xx)]*HEIGHT_SCALE;
if (hereDepth < 0 && xx*xx + yy*yy < distanceToShore)
distanceToShore = xx*xx + yy*yy;
}
}
}
// refine the calculation if we're close enough
if (distanceToShore < 9)
{
for (float xx = -2.5f; xx <= 2.5f; ++xx)
{
for (float yy = -2.5f; yy <= 2.5f; ++yy)
{
float hereDepth = m_WaterHeight - terrain->GetExactGroundLevel( (i+xx)*4, (j+yy)*4 );
if (hereDepth < 0 && xx*xx + yy*yy < distanceToShore)
distanceToShore = xx*xx + yy*yy;
}
}
}
}
else
{
for (int xx = -2; xx <= 2; ++xx)
{
for (int yy = -2; yy <= 2; ++yy)
{
float hereDepth = m_WaterHeight - terrain->GetVertexGroundLevel(i+xx, j+yy);
if (hereDepth > 0)
distanceToShore = 0;
}
}
}
// speedup with default values for land squares
if (distanceToShore == 10000)
{
m_WaveX[j*mapSize + i] = 0.0f;
m_WaveZ[j*mapSize + i] = 0.0f;
m_DistanceToShore[j*mapSize + i] = 100;
m_FoamFactor[j*mapSize + i] = 0.0f;
continue;
}
// We'll compute the normals and the "water raise", to know about foam
// Normals are a pretty good calculation but it's slow since we normalize so much.
CVector3D normal;
int waterRaise = 0;
for (int xx = -4; xx <= 4; xx += 2) // every 2 tile is good enough.
{
for (int yy = -4; yy <= 4; yy += 2)
{
if (j+yy < mapSize && i+xx < mapSize && i+xx >= 0 && j+yy >= 0)
normal += normals[(j+yy)*mapSize + (i+xx)];
if (terrain->GetVertexGroundLevel(i+xx,j+yy) < heightmap[j*mapSize + i]*HEIGHT_SCALE)
waterRaise += heightmap[j*mapSize + i]*HEIGHT_SCALE - terrain->GetVertexGroundLevel(i+xx,j+yy);
}
}
// normalizes the terrain info to avoid foam moving at too different speeds.
normal *= 0.012345679f;
normal[1] = 0.1f;
normal = normal.Normalized();
m_WaveX[j*mapSize + i] = normal[0];
m_WaveZ[j*mapSize + i] = normal[2];
// distance is /5.0 to be a [0,1] value.
m_DistanceToShore[j*mapSize + i] = sqrtf(distanceToShore)/5.0f; // TODO: this can probably be cached as I'm integer here.
// computing the amount of foam I want
depth = clamp(depth,0.0f,10.0f);
float foamAmount = (waterRaise/255.0f) * (1.0f - depth/10.0f) * (waveForceHQ[j*mapSize+i]/255.0f) * (m_Waviness/8.0f);
foamAmount += clamp(m_Waviness/2.0f - distanceToShore,0.0f,m_Waviness/2.0f)/(m_Waviness/2.0f) * clamp(m_Waviness/9.0f,0.3f,1.0f);
foamAmount = foamAmount > 1.0f ? 1.0f: foamAmount;
m_FoamFactor[j*mapSize + i] = foamAmount;
}
}
delete[] normals;
delete[] waveForceHQ;
// TODO: The rest should be cleaned up
// okay let's create the waves squares. i'll divide the map in arbitrary squares
// For each of these squares, check if waves are needed.
// If yes, look for the best positionning (in order to have a nice blending with the shore)
// Then clean-up: remove squares that are too close to each other
std::vector<CVector2D> waveSquares;
int size = 8; // I think this is the size of the squares.
for (int i = 0; i < mapSize/size; ++i)
{
for (int j = 0; j < mapSize/size; ++j)
{
int landTexel = 0;
int waterTexel = 0;
CVector3D avnormal (0.0f,0.0f,0.0f);
CVector2D landPosition(0.0f,0.0f);
CVector2D waterPosition(0.0f,0.0f);
for (int xx = 0; xx < size; ++xx)
{
for (int yy = 0; yy < size; ++yy)
{
if (terrain->GetVertexGroundLevel(i*size+xx,j*size+yy) > m_WaterHeight)
{
landTexel++;
landPosition += CVector2D(i*size+xx,j*size+yy);
}
else
{
waterPosition += CVector2D(i*size+xx,j*size+yy);
waterTexel++;
avnormal += terrain->CalcExactNormal( (i*size+xx)*4.0f,(j*size+yy)*4.0f);
}
}
}
if (landTexel < size/2)
continue;
landPosition /= landTexel;
waterPosition /= waterTexel;
avnormal[1] = 1.0f;
avnormal.Normalize();
avnormal[1] = 0.0f;
// this should help ensure that the shore is pretty flat.
if (avnormal.Length() <= 0.2f)
continue;
// To get the best position for squares, I start at the mean "ocean" position
// And step by step go to the mean "land" position. I keep the position where I change from water to land.
// If this never happens, the square is scrapped.
if (terrain->GetExactGroundLevel(waterPosition.X*4.0f,waterPosition.Y*4.0f) > m_WaterHeight)
continue;
CVector2D squarePos(-1,-1);
for (u8 i = 0; i < 40; i++)
{
squarePos = landPosition * (i/40.0f) + waterPosition * (1.0f-(i/40.0f));
if (terrain->GetExactGroundLevel(squarePos.X*4.0f,squarePos.Y*4.0f) > m_WaterHeight)
break;
}
if (squarePos.X == -1)
continue;
u8 enter = 1;
// okaaaaaay. Got a square. Check for proximity.
for (unsigned long i = 0; i < waveSquares.size(); i++)
{
if ( CVector2D(waveSquares[i]-squarePos).LengthSquared() < 80) {
enter = 0;
break;
}
}
if (enter == 1)
waveSquares.push_back(squarePos);
}
}
// Actually create the waves' meshes.
std::vector<SWavesVertex> waves_vertex_data;
std::vector<GLushort> waves_indices;
// loop through each square point. Look in the square around it, calculate the normal
// create the square.
for (unsigned long i = 0; i < waveSquares.size(); i++)
{
CVector2D pos(waveSquares[i]);
CVector3D avgnorm(0.0f,0.0f,0.0f);
for (int xx = -size/2; xx < size/2; ++xx)
{
for (int yy = -size/2; yy < size/2; ++yy)
{
avgnorm += terrain->CalcExactNormal((pos.X+xx)*4.0f,(pos.Y+yy)*4.0f);
}
}
avgnorm[1] = 0.1f;
// okay crank out a square.
// we have the direction of the square. We'll get the perpendicular vector too
CVector2D perp(-avgnorm[2],avgnorm[0]);
perp = perp.Normalized();
avgnorm = avgnorm.Normalized();
SWavesVertex vertex[4];
vertex[0].m_Position = CVector3D(pos.X + perp.X*(size/2.2f) - avgnorm[0]*1.0f, 0.0f,pos.Y + perp.Y*(size/2.2f) - avgnorm[2]*1.0f);
vertex[0].m_Position *= 4.0f;
vertex[0].m_Position.Y = m_WaterHeight + 1.0f;
vertex[0].m_UV[1] = 1;
vertex[0].m_UV[0] = 0;
vertex[1].m_Position = CVector3D(pos.X - perp.X*(size/2.2f) - avgnorm[0]*1.0f, 0.0f,pos.Y - perp.Y*(size/2.2f) - avgnorm[2]*1.0f);
vertex[1].m_Position *= 4.0f;
vertex[1].m_Position.Y = m_WaterHeight + 1.0f;
vertex[1].m_UV[1] = 1;
vertex[1].m_UV[0] = 1;
vertex[3].m_Position = CVector3D(pos.X + perp.X*(size/2.2f) + avgnorm[0]*(size/1.5f), 0.0f,pos.Y + perp.Y*(size/2.2f) + avgnorm[2]*(size/1.5f));
vertex[3].m_Position *= 4.0f;
vertex[3].m_Position.Y = m_WaterHeight + 1.0f;
vertex[3].m_UV[1] = 0;
vertex[3].m_UV[0] = 0;
vertex[2].m_Position = CVector3D(pos.X - perp.X*(size/2.2f) + avgnorm[0]*(size/1.5f), 0.0f,pos.Y - perp.Y*(size/2.2f) + avgnorm[2]*(size/1.5f));
vertex[2].m_Position *= 4.0f;
vertex[2].m_Position.Y = m_WaterHeight + 1.0f;
vertex[2].m_UV[1] = 0;
vertex[2].m_UV[0] = 1;
waves_indices.push_back(waves_vertex_data.size());
waves_vertex_data.push_back(vertex[0]);
waves_indices.push_back(waves_vertex_data.size());
waves_vertex_data.push_back(vertex[1]);
waves_indices.push_back(waves_vertex_data.size());
waves_vertex_data.push_back(vertex[2]);
waves_indices.push_back(waves_vertex_data.size());
waves_vertex_data.push_back(vertex[3]);
}
// no vertex buffers if no data generated
if (waves_indices.empty())
return;
// waves
// allocate vertex buffer
m_VBWaves = g_VBMan.Allocate(sizeof(SWavesVertex), waves_vertex_data.size(), GL_STATIC_DRAW, GL_ARRAY_BUFFER);
m_VBWaves->m_Owner->UpdateChunkVertices(m_VBWaves, &waves_vertex_data[0]);
// Construct indices buffer
m_VBWavesIndices = g_VBMan.Allocate(sizeof(GLushort), waves_indices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
m_VBWavesIndices->m_Owner->UpdateChunkVertices(m_VBWavesIndices, &waves_indices[0]);
}
int main(void)
{
// Make sure these four lines are put first since some of the
// other classes need the managers to be initialised so they
// can pick up the correct data.
SPS2Manager.Initialise(4096); // 4096 * 4K Pages = 16MB Total
VIFStaticDMA.Initialise(3072); // 1536 * 4K Pages = 6MB Static DMA
VIFDynamicDMA.Initialise(256); // 256 * 4K Pages * 2 Buffers =
// 2MB Dynamic DMA
Pipeline.Initialise(); // Initialise graphics pipline class
// Initialise Lighting
// Three lights and Ambient light
// Direction vector Colour
Pipeline.SetLight1(Vector4( 0.0f, 0.5f, -1.0f, 0.0f), Vector4( 0.0f, 0.0f, 128.0f, 0.0f));
Pipeline.SetLight2(Vector4( 1.0f, -0.5f, -1.0f, 0.0f), Vector4( 0.0f, 128.0f, 0.0f, 0.0f));
Pipeline.SetLight3(Vector4( -1.0f, -0.5f, -1.0f, 0.0f), Vector4( 128.0f, 0.0f, 0.0f, 0.0f));
// Colour
Pipeline.SetAmbient(Vector4(50.0f,50.0f,50.0f,50.0f));
// Terrain to render
CTerrain Terrain;
// Performance timer - call after SPS2Manager.Initialise()
CTimer Timer;
// Set up audio devices
AudioDevice DSP0(0);
// Set up music in sound buffer 0
SoundSample music("go_cart", &DSP0);
// Play the music!
music.Play();
// Initialise control pad 0
if(!pad_init(PAD_0, PAD_INIT_LOCK | PAD_INIT_ANALOGUE | PAD_INIT_PRESSURE))
{
printf("Failed to initialise control pad\n");
pad_cleanup(PAD_0);
exit(0);
}
enable_actuator(0, 1, 1);
// Initialise the VU1 manager class
CVU1MicroProgram VU1MicroCode(&VU_vu1code_start, &VU_vu1code_end);
// Upload the microcode
VU1MicroCode.Upload();
// Register our signal function for every possible signal (i.e. ctrl + c)
for(int sig=0; sig<128; sig++)
signal(sig, sig_handle);
// Set up the DMA packet to clear the screen. We want to clear to blue.
SPS2Manager.InitScreenClear(0, 0x25, 0x50);
// Set Up Camera --------------------------------------------------------------
Pipeline.PositionCamera(Vector4(0.0f, 55.0f, 80.0f, 1.0f), Vector4(0.0f, 40.0f, 0.0f, 1.0f));
// Load in texture and models ----------------------------------------------
// Set up asset loader
AssetManager assetManager;
assetManager.Initialize();
// Terrain texture
CTexture* terrainTexture = assetManager.GetTexture("terrain");
// Set up game manager
GameManager* gameManager = new GameManager;
gameManager->Initialize();
// The main Render loop -------------------------------------------------------
while(g_bLoop)
{
// Process Audio
DSP0.HandleAudio();
VIFDynamicDMA.Fire();
// Update Control Pad
pad_update(PAD_0);
Pipeline.Update(0, 0, 0, 0, 0);
// Logic
g_bLoop = gameManager->Logic();
// Render
SPS2Manager.BeginScene();
// Render terrain
AssetManager::GetSingleton().LoadTexture(terrainTexture);
Matrix4x4 matWorld, matTrans, matScale;
matTrans.Translation(0.0f, -30.0f, 0.0f);
matScale.Scaling(20.0f);
matWorld = matScale * matTrans;
Terrain.SetWorldMatrix(matWorld);
Terrain.Render();
// Render scene
gameManager->Render();
SPS2Manager.EndScene();
// Dump screenshot if requested
if(pad[0].pressed & PAD_R2)SPS2Manager.ScreenShot();
}
// Shutdown Audio
DSP0.Close();
// Shutdown control pad
set_actuator(0, 0, 0);
pad_cleanup(PAD_0);
// Shutdown game manager
gameManager->Shutdown();
// Shutdown asset manager
assetManager.Shutdown();
return 0;
}
void CPatchRData::BuildIndices()
{
PROFILE3("build indices");
CTerrain* terrain = m_Patch->m_Parent;
ssize_t px = m_Patch->m_X * PATCH_SIZE;
ssize_t pz = m_Patch->m_Z * PATCH_SIZE;
// must have allocated some vertices before trying to build corresponding indices
ENSURE(m_VBBase);
// number of vertices in each direction in each patch
ssize_t vsize=PATCH_SIZE+1;
std::vector<unsigned short> indices;
indices.reserve(PATCH_SIZE * PATCH_SIZE * 4);
// release existing splats
m_Splats.clear();
// build grid of textures on this patch
std::vector<CTerrainTextureEntry*> textures;
CTerrainTextureEntry* texgrid[PATCH_SIZE][PATCH_SIZE];
for (ssize_t j=0;j<PATCH_SIZE;j++) {
for (ssize_t i=0;i<PATCH_SIZE;i++) {
CTerrainTextureEntry* tex=m_Patch->m_MiniPatches[j][i].GetTextureEntry();
texgrid[j][i]=tex;
if (std::find(textures.begin(),textures.end(),tex)==textures.end()) {
textures.push_back(tex);
}
}
}
// now build base splats from interior textures
m_Splats.resize(textures.size());
// build indices for base splats
size_t base=m_VBBase->m_Index;
ENSURE(base + vsize*vsize < 65536); // mustn't overflow u16 indexes
for (size_t i=0;i<m_Splats.size();i++) {
CTerrainTextureEntry* tex=textures[i];
SSplat& splat=m_Splats[i];
splat.m_Texture=tex;
splat.m_IndexStart=indices.size();
for (ssize_t j = 0; j < PATCH_SIZE; j++)
{
for (ssize_t i = 0; i < PATCH_SIZE; i++)
{
if (texgrid[j][i] == tex)
{
bool dir = terrain->GetTriangulationDir(px+i, pz+j);
if (dir)
{
indices.push_back(u16(((j+0)*vsize+(i+0))+base));
indices.push_back(u16(((j+0)*vsize+(i+1))+base));
indices.push_back(u16(((j+1)*vsize+(i+0))+base));
indices.push_back(u16(((j+0)*vsize+(i+1))+base));
indices.push_back(u16(((j+1)*vsize+(i+1))+base));
indices.push_back(u16(((j+1)*vsize+(i+0))+base));
}
else
{
indices.push_back(u16(((j+0)*vsize+(i+0))+base));
indices.push_back(u16(((j+0)*vsize+(i+1))+base));
indices.push_back(u16(((j+1)*vsize+(i+1))+base));
indices.push_back(u16(((j+1)*vsize+(i+1))+base));
indices.push_back(u16(((j+1)*vsize+(i+0))+base));
indices.push_back(u16(((j+0)*vsize+(i+0))+base));
}
}
}
}
splat.m_IndexCount=indices.size()-splat.m_IndexStart;
}
// Release existing vertex buffer chunk
if (m_VBBaseIndices)
{
g_VBMan.Release(m_VBBaseIndices);
m_VBBaseIndices = 0;
}
ENSURE(indices.size());
// Construct vertex buffer
m_VBBaseIndices = g_VBMan.Allocate(sizeof(u16), indices.size(), GL_STATIC_DRAW, GL_ELEMENT_ARRAY_BUFFER);
m_VBBaseIndices->m_Owner->UpdateChunkVertices(m_VBBaseIndices, &indices[0]);
}
