/*************************************************************************
* D3DXComputeBoundingSphere
*/
HRESULT WINAPI D3DXComputeBoundingSphere(CONST D3DXVECTOR3* pfirstposition, DWORD numvertices, DWORD dwstride, D3DXVECTOR3 *pcenter, FLOAT *pradius)
{
D3DXVECTOR3 temp, temp1;
FLOAT d;
unsigned int i;
if( !pfirstposition || !pcenter || !pradius ) return D3DERR_INVALIDCALL;
temp.x = 0.0f;
temp.y = 0.0f;
temp.z = 0.0f;
temp1 = temp;
d = 0.0f;
*pradius = 0.0f;
for(i=0; i<numvertices; i++)
{
D3DXVec3Add(&temp1, &temp, (D3DXVECTOR3*)((char*)pfirstposition + dwstride * i));
temp = temp1;
}
D3DXVec3Scale(pcenter, &temp, 1.0f/((FLOAT)numvertices));
for(i=0; i<numvertices; i++)
{
d = D3DXVec3Length(D3DXVec3Subtract(&temp, (D3DXVECTOR3*)((char*)pfirstposition + dwstride * i), pcenter));
if ( d > *pradius ) *pradius = d;
}
return D3D_OK;
}
bool BulletStorm::IsCollided(D3DXVECTOR3 norm, float shipx, float shipy)
{
// prerequisite: bullets are already fetched from lua script
// scan all points
for (std::vector<BulletType>::iterator iter = m_vertexList.begin(); iter != m_vertexList.end(); ++iter)
{
float bx, by;
bx = (*iter).position.x;
float tmp = D3DXVec3Dot(&norm, &((*iter).position));
D3DXVECTOR3 tnorm = -tmp * norm;
D3DXVECTOR3 persP;
D3DXVec3Add(&persP, &(*iter).position, &tnorm);
D3DXVECTOR3 yvec;
D3DXVec3Cross(&yvec, &D3DXVECTOR3(1, 0, 0), &norm);
if (abs(yvec.y) > abs(yvec.z))
by = persP.y / yvec.y;
else by = persP.z / yvec.z;
float dis = (sqrt((by - shipy) * (by - shipy) + (bx - shipx) * (bx - shipx)));
if (dis < 7.0f)
{
return true;
}
}
return false;
}
static inline Vector* findNearestPointOnLine(Vector* result, Vector* point, Vector* start, Vector* end)
{
float mu;
Vector line;
D3DXVec3Subtract( &line, end, start );
mu = D3DXVec3Dot( point, &line ) - D3DXVec3Dot( start, &line );
if( mu <= 0 )
{
*result = *start;
}
else
{
float lineLength2;
lineLength2 = D3DXVec3Dot( &line, &line );
if( mu < lineLength2 )
{
mu /= lineLength2;
D3DXVec3Scale( result, &line, mu );
D3DXVec3Add( result, result, start );
}
else
{
*result = *end;
}
}
return result;
}
void GameObject::AddForce(float power, D3DXVECTOR3& dir)
{
//dir muss vorher schon normiert sein!
//D3DXVec3Normalize(&dir, &dir);
dir*= power;
D3DXVec3Add(&velocity, &velocity, &dir);
}
void GameObject::AddForce(float power, float& x, float& y, float& z)
{
D3DXVECTOR3 dir(x,y,z);
D3DXVec3Normalize(&dir, &dir);
dir*= power;
D3DXVec3Add(&velocity, &velocity, &dir);
}
/////////////////////////////////////////////////////////////////////////
// ’e”ŽË
/////////////////////////////////////////////////////////////////////////
void MoveShell(Shell &shell, Tank(&tank)[myTANKNUM], float speed, float cd)
{
D3DXVECTOR3 vec;
if (shell.fireOK == false)
{
if (shell.time < cd / FPS * 60.f)
{
shell.time += fpTimeDelta;
}
else
{
shell.fireOK = true;
shell.time = cd / FPS * 60.f;
}
}
if (shell.fireOK &&key&mLbtn)
{
shell.hitmax += 1;
shell.active = true;
shell.fireOK = false;
shell.time = 0.f;
}
if (shell.active == false)
{
shell.position = tank[myGUN].position;
shell.prePos = tank[myGUN].position;
D3DXMatrixRotationYawPitchRoll(&shell.mat, D3DXToRadian(tank[myGUN].direction), tank[myGUN].pitch, tank[myGUN].roll);
D3DXMatrixMultiply(&shell.mat, &shell.mat, &tank[myGUN].mat);
D3DXVec3TransformCoord(&vec, &D3DXVECTOR3(0.f, 0.f, 0.5f), &shell.mat);
D3DXVec3Add(&shell.position, &tank[myGUN].position, &vec);
}
else if (shell.active)
{
shell.prePos = shell.position;
D3DXVECTOR3 dist(0.0f, 0.0f, speed / 150.f);
D3DXVec3TransformCoord(&dist, &dist, &shell.mat);
D3DXVec3Add(&shell.position, &shell.position, &dist);
if (D3DXVec3Length(D3DXVec3Subtract(&vec, &shell.position, &tank[myGUN].position)) > 600.f)
{
shell.active = false;
}
}
}
/**
* CParticleEffect::updateParticle
* @date Modified Jun 01, 2006
*/
bool CParticleEffect::updateParticle(float fTime, CParticleManager::SParticle* pParticle)
{
CParticleManager::SParticle* p = pParticle;
p->LivingTime += fTime;
// Check for dead particles
if(p->LivingTime >= m_fEffectLength)
{
return false;
}
else
{
D3DXVECTOR3 vVel = p->Velocity * fTime;
D3DXVECTOR3 vAccel = p->Acceleration * fTime;
D3DXVec3Add(&p->Position, &p->Position, &vVel);
D3DXVec3Add(&p->Velocity, &p->Velocity, &vAccel);
if(m_bBounce && p->Position.y < 0.0f)
{
p->Position.y = 0.0f;
p->Velocity.x /= m_fInvRestitution;
p->Velocity.y = (-p->Velocity.y) / m_fInvRestitution;
p->Velocity.z /= m_fInvRestitution;
}
}
// Update attributes
BYTE cR = GET_RED(p->Color), cG = GET_GREEN(p->Color), cB = GET_BLUE(p->Color), cA = GET_ALPHA(p->Color);
for(size_t j = 0; j < m_vAttributes.size(); ++j)
{
float fScale = m_vAttributes[j]->getValue(p->LivingTime / m_fEffectLength);
switch(m_vAttributes[j]->getType())
{
case CParticleAttribute::ATR_COLORRED: cR = (BYTE)(fScale * 255.0f); break;
case CParticleAttribute::ATR_COLORGREEN: cG = (BYTE)(fScale * 255.0f); break;
case CParticleAttribute::ATR_COLORBLUE: cB = (BYTE)(fScale * 255.0f); break;
case CParticleAttribute::ATR_COLORALPHA: cA = (BYTE)(fScale * 255.0f); break;
case CParticleAttribute::ATR_SIZE: p->Size = fScale; break;
case CParticleAttribute::ATR_ROTATION: p->Rotation = degreesToRadians(fScale); break;
case CParticleAttribute::ATR_ACCELX: p->Acceleration.x = fScale; break;
case CParticleAttribute::ATR_ACCELY: p->Acceleration.y = fScale; break;
case CParticleAttribute::ATR_ACCELZ: p->Acceleration.z = fScale; break;
}
}
p->Color = D3DCOLOR_ARGB(cA, cR, cG, cB);
return true;
}
static inline void calcSphereTriangleDistance(
Sphere* sphere,
Vector* normal,
Vector* v0, Vector* v1, Vector* v2,
Vector* collPoint,
float* distance
)
{
// project sphere center onto plane of triangle.
Vector* center = &sphere->center;
Vector projPoint;
float dist2plane = D3DXVec3Dot( v0, normal ) - D3DXVec3Dot( center, normal );
D3DXVec3Scale( &projPoint, normal, dist2plane );
D3DXVec3Add( &projPoint, &projPoint, center );
// does the projected point lie within the collision triangle?
Vector* vertices[3];
vertices[0] = v0, vertices[1] = v1, vertices[2] = v2;
if( isPointWithinTriangle( &projPoint, vertices, normal ) )
{
*distance = fabs( dist2plane );
*collPoint = projPoint;
return;
}
// projected point lies outside the triangle, so find the nearest
// point on the triangle boundary...
else
{
float currdist;
Vector closestPoint, temp;
findNearestPointOnLine( &closestPoint, &projPoint, v0, v1 );
D3DXVec3Subtract( &temp, center, &closestPoint );
*distance = D3DXVec3Length(&temp), *collPoint = closestPoint;
findNearestPointOnLine( &closestPoint, &projPoint, v1, v2 );
D3DXVec3Subtract(&temp, center, &closestPoint);
currdist = D3DXVec3Length(&temp);
if( *distance > currdist ) *distance = currdist, *collPoint = closestPoint;
findNearestPointOnLine( &closestPoint, &projPoint, v0, v2 );
D3DXVec3Subtract(&temp, center, &closestPoint);
currdist = D3DXVec3Length(&temp);
if( *distance > currdist ) *distance = currdist, *collPoint = closestPoint;
}
}
void MoveEmyShell(Shell &shell, Enemy(&enemy)[eTANKNUM], float speed, float cd)
{
D3DXVECTOR3 vec;
if (shell.fireOK == false)
{
if (shell.time < cd / FPS * 60.f)
{
shell.time += fpTimeDelta;
}
else
{
shell.fireOK = true;
}
}
else if (shell.fireOK)
{
shell.active = true;
shell.fireOK = false;
shell.time = 0.f;
}
if (shell.active == false)
{
shell.position = enemy[eGUN].position;
shell.prePos = enemy[eGUN].position;
D3DXMatrixRotationYawPitchRoll(&shell.mat, D3DXToRadian(enemy[eGUN].direction), enemy[eGUN].pitch, enemy[eGUN].roll);
D3DXMatrixMultiply(&shell.mat, &shell.mat, &enemy[eGUN].mat);
}
else if (shell.active)
{
shell.prePos = shell.position;
D3DXVECTOR3 dist;
dist = { 0.0f, 0.0f, speed / 150.f };
D3DXVec3TransformCoord(&dist, &dist, &shell.mat);
D3DXVec3Add(&shell.position, &shell.position, &dist);
if (D3DXVec3Length(D3DXVec3Subtract(&vec, &shell.position, &enemy[eGUN].position)) > 600.f)
{
shell.active = false;
}
}
}
/**
* CAIStatePathFollow::followPath
* @dateModified May 4, 2006
*/
void CAIStatePathFollow::followPath(CAIEntity* poAIEntity, CCharacter* poCharacter, float fSpeed)
{
// check for a valid path, one with nodes in it
if (poAIEntity->m_loPath.empty())
{
// this is bad that there are no nodes to go to
// remove our influence
poCharacter->setVelocity(D3DXVECTOR3(0.0f, 0.0f, 0.0f));
// but not for now
((CEnemy*)(poCharacter))->setAIState(NULL);
return;
}
// if it isn't moving to a node yet, start the movement
if (memcmp(&m_vVelocity, &poCharacter->getVelocity(), sizeof(D3DXVECTOR3)) == 0)
{
// get vector from current position to next node
D3DXVECTOR3 vNextNode;
D3DXVec3Subtract(&vNextNode, &PATH_BACK->getPosition(), &poCharacter->getBV().centerPt);
D3DXVec3Normalize(NULL, &vNextNode, &vNextNode);
// scale by speed
poCharacter->setOrientation(vNextNode);
D3DXVec3Scale(&vNextNode, &vNextNode, fSpeed);
// set velocity
poCharacter->setVelocity(vNextNode);
}
// check to see if we should target to the next node
else if (computeDistanceSquared(poCharacter->getBV().centerPt, PATH_BACK->getPosition()) < (PATH_BACK->m_fRadius * PATH_BACK->m_fRadius))
{
// we need to go to the next node
poAIEntity->m_loPath.pop_back();
// are we now at the goal
if (poAIEntity->m_loPath.empty())
{
// we are at the goal
// remove influence
poCharacter->setVelocity(D3DXVECTOR3(0.0f, 0.0f, 0.0f));
// but not for now
((CEnemy*)(poCharacter))->setAIState(NULL);
return;
}
// loose movement around the nodes
//////////////////////////////////
D3DXVECTOR3 vNextNode, vGoalNode;
// get vector from entity to next node
D3DXVec3Subtract(&vNextNode, &PATH_BACK->getPosition(), &poCharacter->getBV().centerPt);
// get vector from entity to goal node
D3DXVec3Subtract(&vGoalNode, &PATH_FRONT->getPosition(), &poCharacter->getBV().centerPt);
D3DXVec3Normalize(NULL, &vGoalNode, &vGoalNode);
// project vector from entity to next node onto vector from entity to goal node
float fProjection = D3DXVec3Dot(&vNextNode, &vGoalNode);
// store the position there now
vNextNode = PATH_BACK->getPosition();
// scale vector from entity to goal node by the projection value
D3DXVec3Scale(&vGoalNode, &vGoalNode, fProjection);
// add vector from entity to goal node to get point closest to next node
D3DXVec3Add(&vGoalNode, &poCharacter->getBV().centerPt, &vGoalNode);
// get the vector from the next node to the closest point
D3DXVec3Subtract(&vGoalNode, &vGoalNode, &vNextNode);
// if the magnitude of the vector between the next node and the closest point
// is greater than the radius of the node, do some randomization
if (D3DXVec3Length(&vGoalNode) > PATH_BACK->m_fRadius)
{
D3DXVec3Normalize(NULL, &vGoalNode, &vGoalNode);
int nRandInt = (int)(PATH_BACK->m_fRadius * 10);
float fRandFloat = (float)(rand()%nRandInt) / 10.0f;
D3DXVec3Scale(&vGoalNode, &vGoalNode, fRandFloat);
}
// add vector from next node to point within radius
D3DXVec3Add(&vNextNode, &vNextNode, &vGoalNode);
// get vector from entity to point within radius to be new velocity
D3DXVec3Subtract(&vGoalNode, &vNextNode, &poCharacter->getBV().centerPt);
// normalize and scale by speed
poCharacter->setOrientation(vGoalNode);
D3DXVec3Normalize(NULL, &vGoalNode, &vGoalNode);
D3DXVec3Scale(&vGoalNode, &vGoalNode, fSpeed);
vGoalNode.y = 0.0f;
// set velocity
poCharacter->setVelocity(vGoalNode);
return;
}
// have we been following for too long that the goal may have moved
if (poAIEntity->getCurrentStateTime() > 0.25f)
{
// remove our influence
poCharacter->setVelocity(D3DXVECTOR3(0.0f, 0.0f, 0.0f));
// should probably path again
((CEnemy*)(poCharacter))->setAIState(CAIStatePathPlan::getInstancePtr());
}
}
void CActorInstance::OnRender()
{
D3DMATERIAL8 kMtrl;
STATEMANAGER.GetMaterial(&kMtrl);
kMtrl.Diffuse=D3DXCOLOR(m_dwMtrlColor);
STATEMANAGER.SetMaterial(&kMtrl);
// 현재는 이렇게.. 최종적인 형태는 Diffuse와 Blend의 분리로..
// 아니면 이런 형태로 가되 Texture & State Sorting 지원으로.. - [levites]
STATEMANAGER.SaveRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
switch(m_iRenderMode)
{
case RENDER_MODE_NORMAL:
BeginDiffuseRender();
RenderWithOneTexture();
EndDiffuseRender();
BeginOpacityRender();
BlendRenderWithOneTexture();
EndOpacityRender();
break;
case RENDER_MODE_BLEND:
if (m_fAlphaValue == 1.0f)
{
BeginDiffuseRender();
RenderWithOneTexture();
EndDiffuseRender();
BeginOpacityRender();
BlendRenderWithOneTexture();
EndOpacityRender();
}
else if (m_fAlphaValue > 0.0f)
{
BeginBlendRender();
RenderWithOneTexture();
BlendRenderWithOneTexture();
EndBlendRender();
}
break;
case RENDER_MODE_ADD:
BeginAddRender();
RenderWithOneTexture();
BlendRenderWithOneTexture();
EndAddRender();
break;
case RENDER_MODE_MODULATE:
BeginModulateRender();
RenderWithOneTexture();
BlendRenderWithOneTexture();
EndModulateRender();
break;
}
STATEMANAGER.RestoreRenderState(D3DRS_CULLMODE);
kMtrl.Diffuse=D3DXCOLOR(0xffffffff);
STATEMANAGER.SetMaterial(&kMtrl);
if (ms_isDirLine)
{
D3DXVECTOR3 kD3DVt3Cur(m_x, m_y, m_z);
D3DXVECTOR3 kD3DVt3LookDir(0.0f, -1.0f, 0.0f);
D3DXMATRIX kD3DMatLook;
D3DXMatrixRotationZ(&kD3DMatLook, D3DXToRadian(GetRotation()));
D3DXVec3TransformCoord(&kD3DVt3LookDir, &kD3DVt3LookDir, &kD3DMatLook);
D3DXVec3Scale(&kD3DVt3LookDir, &kD3DVt3LookDir, 200.0f);
D3DXVec3Add(&kD3DVt3LookDir, &kD3DVt3LookDir, &kD3DVt3Cur);
D3DXVECTOR3 kD3DVt3AdvDir(0.0f, -1.0f, 0.0f);
D3DXMATRIX kD3DMatAdv;
D3DXMatrixRotationZ(&kD3DMatAdv, D3DXToRadian(GetAdvancingRotation()));
D3DXVec3TransformCoord(&kD3DVt3AdvDir, &kD3DVt3AdvDir, &kD3DMatAdv);
D3DXVec3Scale(&kD3DVt3AdvDir, &kD3DVt3AdvDir, 200.0f);
D3DXVec3Add(&kD3DVt3AdvDir, &kD3DVt3AdvDir, &kD3DVt3Cur);
static CScreen s_kScreen;
STATEMANAGER.SaveTextureStageState(0, D3DTSS_COLORARG1, D3DTA_DIFFUSE);
STATEMANAGER.SaveTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
STATEMANAGER.SaveTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_DISABLE);
STATEMANAGER.SaveRenderState(D3DRS_ZENABLE, FALSE);
STATEMANAGER.SetRenderState(D3DRS_LIGHTING, FALSE);
s_kScreen.SetDiffuseColor(1.0f, 1.0f, 0.0f);
s_kScreen.RenderLine3d(kD3DVt3Cur.x, kD3DVt3Cur.y, kD3DVt3Cur.z, kD3DVt3AdvDir.x, kD3DVt3AdvDir.y, kD3DVt3AdvDir.z);
s_kScreen.SetDiffuseColor(0.0f, 1.0f, 1.0f);
s_kScreen.RenderLine3d(kD3DVt3Cur.x, kD3DVt3Cur.y, kD3DVt3Cur.z, kD3DVt3LookDir.x, kD3DVt3LookDir.y, kD3DVt3LookDir.z);
STATEMANAGER.SetRenderState(D3DRS_LIGHTING, TRUE);
STATEMANAGER.RestoreRenderState(D3DRS_ZENABLE);
STATEMANAGER.RestoreTextureStageState(0, D3DTSS_COLORARG1);
STATEMANAGER.RestoreTextureStageState(0, D3DTSS_COLOROP);
STATEMANAGER.RestoreTextureStageState(0, D3DTSS_ALPHAOP);
STATEMANAGER.RestoreVertexShader();
}
}
