bool CRenderManager::update()
{
glColor3f(1.0f,1.0f,1.0f);
// get camera
CCamera *camera = CV_GAME_MANAGER->getControlManager()->getCamera();
// transform view
camera->transformView();
// Draw the map and items that fall into view frustum.
// 1. extract approximate logical location of camera in the level map.
vector2i center = CConversions::realToLogical(camera->getPosition());
GLint centerX = center[0];
GLint centerY = center[1];
bool isFPS = CV_GAME_MANAGER->getControlManager()->isFPS();
if (isFPS)
{
// fog only in FPS mode
glEnable(GL_FOG);
}
/*
In FPS mode we can't use height to determine visible offset.
We have to use some extent read from config (CV_CAMERA_FPS_EXTENT).
*/
GLint diff = (GLint)(isFPS?cameraFPSExtent:camera->getPosition()[1]*10.0f);
// 2. create a bounding square making its center logical position calculate above.
GLint minX = (centerX-diff>=0?centerX-diff:0);
GLint minY = (centerY-diff>=0?centerY-diff:0);
GLint maxX = (centerX+diff<(GLint)CV_LEVEL_MAP_SIZE?centerX+diff:CV_LEVEL_MAP_SIZE-1);
GLint maxY = (centerY+diff<(GLint)CV_LEVEL_MAP_SIZE?centerY+diff:CV_LEVEL_MAP_SIZE-1);
// 3. go through all block that fall into this bounding square and check if they fall
// int out view frustum. If not then just exclude them.
CBlock *block;
GLint blockVisible = 0,
allVerticesCount = 0,
creaturesVisible = 0,
maxVertInput = 0,
maxTexInput = 0;
tmpVboVertexBufferSize = 0;
tmpVboTexCoordBufferSize = 0;
vector3f vertA,
vertB,
vertC;
GLfloat **verts,
*texCoords;
CLevelManager *lManager = CV_GAME_MANAGER->getLevelManager();
CAnimatedTerrainManager *atManager = CV_GAME_MANAGER->getAnimatedTerrainManager();
CFrustum *frustum = CV_GAME_MANAGER->getControlManager()->getViewFrustum();
bool lavaWater = false;
GLfloat delta = CV_GAME_MANAGER->getDeltaTime();
renderedBlocks.clear();
for (GLint y=minY; y<=maxY; y++)
{
for (GLint x=minX; x<=maxX; x++)
{
block = lManager->getBlock(x,y);
if (block)
{
//block->getBoundingBox()->draw(); // just for testing
if (frustum->containsBBOX(block->getBoundingBox()))
{
blockVisible++;
block->updateTexture(delta);
lavaWater = (block->isLava() || block->isWater());
if (lavaWater)
{
atManager->updateBlock(block);
}
renderedBlocks.push_back(block);
// draw block objects
if (block->getBlockObjects()->size()>0)
{
for (std::vector<CBlockObject*>::iterator rmIter = block->getBlockObjects()->begin(); rmIter != block->getBlockObjects()->end(); rmIter++)
{
CBlockObject *bObj = *rmIter;
bObj->moveTo();
glRotatef(bObj->getRotateY(),0.0f,1.0f,0.0f);
bObj->drawModel(delta);
glRotatef(-bObj->getRotateY(),0.0f,1.0f,0.0f);
bObj->moveBack();
}
}
bool isRoom = block->isRoom();
if (isRoom)
{
std::vector<GLuint> *dls = block->getDisplayLists();
if (dls->size()!=0)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D,textureAtlasColor);
glBegin(GL_QUADS);
{
for (std::vector<GLuint>::iterator dlIter = dls->begin(); dlIter != dls->end(); dlIter++)
{
glCallList(*dlIter);
}
}
glEnd();
glDisable(GL_TEXTURE_2D);
}
}
for (GLint f=CBlock::BFS_FRONT; f<=CBlock::BFS_CEILING; f++)
{
if ((!isFPS && f==CBlock::BFS_CEILING) || (isFPS && f==CBlock::BFS_TOP) || (isRoom && f!=CBlock::BFS_CEILING))
{
continue;
}
if (block->isFaceVisible((CBlock::BLOCK_FACE_SELECTOR)f))
{
verts = block->getVertices();
texCoords = block->getTextureCoordinates((CBlock::BLOCK_FACE_SELECTOR)f);
if (lavaWater && f<=CBlock::BFS_RIGHT)
{
/*
Lava and water have only lowers row of wall sections drawn.
If they are drawn at all.
*/
maxVertInput = CV_FBLR_W_L_FACE_VERT_FLOATS;
maxTexInput = CV_FBLR_W_L_FACE_TEX_FLOATS;
}
else
{
maxVertInput = f>=CBlock::BFS_TOP?CV_TBWLC_FACE_VERT_FLOATS:CV_FBLR_FACE_VERT_FLOATS;
maxTexInput = f>=CBlock::BFS_TOP?CV_TBWLC_FACE_TEX_FLOATS:CV_FBLR_FACE_TEX_FLOATS;
}
if (tmpVboVertexBufferSize+maxVertInput>CV_MAX_VERTEX_BUFFER*3)
{
vbo->setElementsCount(CVBO::IDT_vertex,tmpVboVertexBufferSize/3);
vbo->setElementsCount(CVBO::IDT_texture0,tmpVboTexCoordBufferSize/2);
vbo->setElementsCount(CVBO::IDT_texture1,tmpVboTexCoordBufferSize/2);
vbo->draw();
allVerticesCount+=tmpVboVertexBufferSize;
tmpVboVertexBufferSize=0;
tmpVboTexCoordBufferSize=0;
}
memcpy(tmpVboVertexBuffer+tmpVboVertexBufferSize, verts[f], sizeof(GLfloat)*maxVertInput);
tmpVboVertexBufferSize+=maxVertInput;
memcpy(tmpVboTexCoordBuffer+tmpVboTexCoordBufferSize, texCoords, sizeof(GLfloat)*maxTexInput);
tmpVboTexCoordBufferSize+=maxTexInput;
}
}
}
}
}
}
if (tmpVboVertexBufferSize>0)
{
vbo->setElementsCount(CVBO::IDT_vertex,tmpVboVertexBufferSize/3);
vbo->setElementsCount(CVBO::IDT_texture0,tmpVboTexCoordBufferSize/2);
vbo->setElementsCount(CVBO::IDT_texture1,tmpVboTexCoordBufferSize/2);
vbo->draw();
allVerticesCount+=tmpVboVertexBufferSize;
}
// draw creatures
CCreatureManager *cManager = CV_GAME_MANAGER->getCreatureManager();
GLint cCount = cManager->getCreatureVector()->size();
if (cCount>0)
{
CCreature *creature = NULL;
for (std::vector<CCreature*>::iterator cIter = cManager->getCreatureVector()->begin(); cIter != cManager->getCreatureVector()->end(); cIter++)
{
creature = (*cIter);
if (creature)
{
sBoundingBox *cBBOX = creature->getModel()->getBoundingBox();
cBBOX->translate(creature->getPosition());
if (frustum->containsBBOX(cBBOX))
{
creature->draw(delta);
creaturesVisible++;
}
cBBOX->translate(-creature->getPosition());
}
}
}
// draw transparent block objects
for (std::vector<CBlock*>::iterator vbIter = renderedBlocks.begin(); vbIter != renderedBlocks.end(); vbIter++)
{
block = *vbIter;
if (block->getBlockObjects()->size()>0)
{
for (std::vector<CBlockObject*>::iterator rmIter = block->getBlockObjects()->begin(); rmIter != block->getBlockObjects()->end(); rmIter++)
{
CBlockObject *bObj = *rmIter;
bObj->moveTo();
glRotatef(bObj->getRotateY(),0.0f,1.0f,0.0f);
bObj->drawEffect();
glRotatef(-bObj->getRotateY(),0.0f,1.0f,0.0f);
bObj->moveBack();
}
}
}
glDisable(GL_FOG);
if (!isFPS)
{
handlePickedObjects();
}
CV_GAME_MANAGER->getTextPrinter()->print((GLfloat)0,(GLfloat)(CV_SETTINGS_WINDOW_HEIGHT-15*3),"Visible blocks: %d",blockVisible);
CV_GAME_MANAGER->getTextPrinter()->print((GLfloat)0,(GLfloat)(CV_SETTINGS_WINDOW_HEIGHT-15*2),"Visible creatures: %d",creaturesVisible);
CV_GAME_MANAGER->getTextPrinter()->print((GLfloat)0,(GLfloat)(CV_SETTINGS_WINDOW_HEIGHT-15),"Triangles drawn: %d",(allVerticesCount/4)*2);
// render the lights representations. usefull for debugging
CV_GAME_MANAGER->getLightingManager()->drawLightSources(frustum);
return true;
}
GLvoid CRenderManager::handlePickedObjects()
{
// if we are ower the menu we do not have to proccess things under the cursor
if (CV_GAME_MANAGER->getGUIManager()->getPlayGUI()->is_mouse_over_gui())
{
return;
}
// if we are not selling or buying we don't have to process blocks (just objects TODO)
ACTION_EVENT *ae = CV_GAME_MANAGER->getGUIManager()->getLastActionEvent();
// get the block we have our cousor on
CBlock *pickedBlock = CV_GAME_MANAGER->getPickingManager()->getLastPickedBlock();
if (pickedBlock)
{
GLint type = pickedBlock->getType();
/*if (!pickedBlock->isSellable())
{
return;
}*/
sBoundingBox *bbox = pickedBlock->getBoundingBox();
vector3f a(bbox->A);
vector3f b(bbox->B);
vector3f c(bbox->C);
vector3f d(bbox->D);
vector3f e(bbox->E);
vector3f f(bbox->F);
vector3f g(bbox->G);
vector3f h(bbox->H);
a[1]=b[1]=c[1]=d[1]=CV_BLOCK_HEIGHT+CV_BLOCK_HEIGHT/4.0f+CV_BLOCK_HEIGHT/32.0f;
e[1]=f[1]=g[1]=h[1]=CV_BLOCK_HEIGHT/4.0f+CV_BLOCK_HEIGHT/32.0f;
glLineWidth(4.0f);
if (pickedBlock->isLow())
{
if (!(ae->message_group==AEMG_BUILD_ROOMS || ae->message_group==AEMG_BUILD_DOORS || ae->message_group==AEMG_BUILD_TRAPS))
{
return;
}
// draw the selection box
if (pickedBlock->isSellable(CV_CURRENT_PLAYER_ID) && ae->message == AEM_SELL)
{
glColor3f(0.0f,1.0f,0.0f);
}
else if (pickedBlock->isBuildable(CV_CURRENT_PLAYER_ID) && ae->message != AEM_SELL)
{
glColor3f(0.0f,1.0f,0.0f);
}
else
{
glColor3f(1.0f,0.0f,0.0f);
}
glBegin(GL_LINES);
{
/*glVertex3fv(&a[0]); glVertex3fv(&b[0]);
glVertex3fv(&b[0]); glVertex3fv(&c[0]);
glVertex3fv(&c[0]); glVertex3fv(&d[0]);
glVertex3fv(&d[0]); glVertex3fv(&a[0]);*/
glVertex3fv(&e[0]); glVertex3fv(&f[0]);
glVertex3fv(&f[0]); glVertex3fv(&g[0]);
glVertex3fv(&g[0]); glVertex3fv(&h[0]);
glVertex3fv(&h[0]); glVertex3fv(&e[0]);
/*glVertex3fv(&a[0]); glVertex3fv(&e[0]);
glVertex3fv(&b[0]); glVertex3fv(&f[0]);
glVertex3fv(&c[0]); glVertex3fv(&g[0]);
glVertex3fv(&d[0]); glVertex3fv(&h[0]);*/
}
glEnd();
}
else
{
if (!(ae->message_group==AEMG_BUILD_ROOMS || ae->message_group==AEMG_BUILD_DOORS || ae->message_group==AEMG_BUILD_TRAPS))
glColor3f(type==CV_BLOCK_TYPE_ROCK_ID?1.0f:0.0f,type==CV_BLOCK_TYPE_ROCK_ID?0.0f:1.0f,0.0f);
else
glColor3f(1.0f,0.0f,0.0f);
glBegin(GL_LINES);
{
glVertex3fv(&a[0]); glVertex3fv(&b[0]);
glVertex3fv(&b[0]); glVertex3fv(&c[0]);
glVertex3fv(&c[0]); glVertex3fv(&d[0]);
glVertex3fv(&d[0]); glVertex3fv(&a[0]);
glVertex3fv(&e[0]); glVertex3fv(&f[0]);
glVertex3fv(&f[0]); glVertex3fv(&g[0]);
glVertex3fv(&g[0]); glVertex3fv(&h[0]);
glVertex3fv(&h[0]); glVertex3fv(&e[0]);
glVertex3fv(&a[0]); glVertex3fv(&e[0]);
glVertex3fv(&b[0]); glVertex3fv(&f[0]);
glVertex3fv(&c[0]); glVertex3fv(&g[0]);
glVertex3fv(&d[0]); glVertex3fv(&h[0]);
}
glEnd();
}
glLineWidth(1.0f);
}
}