//Bernard Peng
//bpeng

#ifndef __SIMSGRAPHICS__
#define __SIMSGRAPHICS__

//building types, these will be defined by logic
class Building;
class Road;
class Character;


class SimsGraphics {

public:
	SimsGraphics();
	~SimsGraphics();

	//GUI calls, this takes a pixel coordinate and returns the world coordinates
	int getWorldCoordinates(int pixelx, int pixely, float &x, float &y);

	//these 3 functions are used by the GUI to manipulate the camera, they take pixel coordinates
	int cameraPan(int x, int y);
	int cameraZoom(int x, int y);
	int cameraRotate(int x, int y);
	
	//these 3 functions are used by the GUI to manipulate the camera if it wants to do so with
	//  "real" values (not pixel values, but world coordinate values)
	int manualCameraPan(double x, double z);
	int manualCameraZoom(double zoom);
	int manualCameraRotate(double rotate);
	

	//terrain setup	
	//  -these sets a terrain type (for a square, since its tile based)
	int addTerrain(int x, int y, int type);
	//  -this puts in a "prop" which is around to make the scene look good.  examples are
	//   trees, mailboxes, bushes, etc.
	int addProp(int x, int y, int type);
	
	//add structures
	//  -these 3 are called, and are passed a class of the corresponding type.  Through the class,
	//   we can get the locations and any other information we need to draw the thing.
	int addBuilding(Building *building);
	int addRoad(Road *road);
	int addCharacter(Character *character);
	
	//delete structures
	//  -these remove the objects from the map.
	int deleteBuilding(Building *building);
	int deleteRoad(Road *road);
	int deleteCharacter(Character *character);

	//special functions
	//  -this is called by the GUI to draw some sort of building to show where it would go if the user
	//   were to build it there.
	int previewBuilding(int x, int y, int type);

	//driver functions
	// -this initializes opengl
	void init();
	// -this draws all the objects in the scene.
	void draw();

private:
};

#endif