LearnCocos2D

#if TARGET_OS_IPHONE
  id context = [EAGLContext currentContext];
#else
  id context = [NSOpenGLContext currentContext];
#endif

LearnCocos2D

-(void) draw:(CCRenderer *)renderer transform:(const GLKMatrix4 *)transform
{
	// Drawing the triangle fan. Simple explanation of how a triangle fan is drawn:
	// http://stackoverflow.com/questions/8043923/gl-triangle-fan-explanation
	
	// in a triangle fan the first 3 vertices form one triangle, then each additional vertex forms another triangle
	// thus number of triangles is number of vertices minus the initial 2 vertices for the first triangle
	int numTriangles = _numVertices - 2;
	CCRenderBuffer buffer = [renderer enqueueTriangles:numTriangles
										   andVertexes:_numVertices

LearnCocos2D

For background and further references see: Entity Component Systems on Wikipedia

ECS by Scott Bilas (GDC 2002)

Entity->Components->Update

• entity = class: no logic + no data OR at most small set of frequently used data (ie position)
• component = class: logic + data

foreach entity in allEntities do
    foreach component in entity.components do

LearnCocos2D

Full ECS discussion gist: https://gist.github.com/LearnCocos2D/77f0ced228292676689f

ECS by Scott Bilas (GDC 2002, Dungeon Siege)

foreach entity in allEntities do
    foreach component in entity.components do
	    component.update()
	end
end

LearnCocos2D

/*
  Swift classes implementing the GKMinmaxStrategizer protocols, without any logic.
  You can use these as a template, copy & paste them into your project and start working. ;)
  
  This gist is provided by http://tilemapkit.com and released into public domain.
  
  Here's my tutorial about GKMinmaxStrategist: http://tilemapkit.com/2015/07/gkminmaxstrategist-build-tictactoe-ai/
*/

class TheGameModel: NSObject, NSCopying, GKGameModel {