void GameController::displayGamePlay()
{
glEnable(GL_DEPTH_TEST); // must be done each time before displaying graphics or gets disabled for some reason
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
gluLookAt(0, 0, 0, 0, 0, -1, 0, 1, 0);
for (int i = NUM_LAYERS - 1; i >= 0; --i)
{
std::set<GraphObject*> &graphObjects = GraphObject::getGraphObjects(i);
for (auto it = graphObjects.begin(); it != graphObjects.end(); it++)
{
GraphObject* cur = *it;
if (cur->isVisible())
{
cur->animate();
double x, y, gx, gy, gz;
cur->getAnimationLocation(x, y);
convertToGlutCoords(x, y, gx, gy, gz);
SpriteManager::Angle angle;
switch (cur->getDirection())
{
case GraphObject::up:
angle = SpriteManager::face_up;
break;
case GraphObject::down:
angle = SpriteManager::face_down;
break;
case GraphObject::left:
angle = SpriteManager::face_left;
break;
case GraphObject::right:
case GraphObject::none:
default:
angle = SpriteManager::face_right;
break;
}
int imageID = cur->getID();
// the specialized Dirt plotting is an optimization to deal with the background Dirt, which requires a lot of horsepower to plot
if (imageID == IID_DIRT)
drawDirt(gx, gy, gz, cur->getSize());
else
m_spriteManager.plotSprite(imageID, cur->getAnimationNumber() % m_spriteManager.getNumFrames(imageID), gx, gy, gz, angle, cur->getSize());
}
}
}
drawScoreAndLives(m_gameStatText);
glutSwapBuffers();
}
