/**
* Initializes EGL and OpenGL for use by this tile engine.
*/
bool GLTileEngine::initGL()
{
// make the context current
if(!this->platform->makeCurrent())
{
printf("MakeCurrent returned false\n");
return false;
}
glEnable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glDisable(GL_LIGHTING);
glDisable(GL_BLEND);
glDisable(GL_DITHER);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
if(checkGLError()) printf("\n");
if(!loadTexture())
{
checkGLError();
return false;
}
// initialize overlay texture
glGenTextures(1, &this->overlayTexture);
glBindTexture(GL_TEXTURE_2D, this->overlayTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
genTexCoords();
if(!this->sprites.loadSprites())
{
printf("Failed to load one or more sprites\n");
return false;
}
checkGLError();
return true;
}
float* getTexCoords(int segment) {
top = getTop(segment); left = getLeft(segment);
genTexCoords() ;
return & texcoords[0];
}
