#include<SDL.h>
#include "mx3d_math.h"

SDL_Surface *front = 0;
void *buf = 0;

mx3d::mxObject obj;
mx3d::vec4D cam_pos(0,0,0,1), cam_dir(0,0,0,1), scale(5.0f,5.0f,5.0f,1), obj_pos(0,0,0,1), obj_rot(0,0,0,1);
mx3d::Camera cam;
mx3d::PipeLine graph;
mx3d::RenderList rl;
mx3d::Mat4D rotation_matrix;
SDL_Joystick *stick = 0;

void render(int screen) {
	
	
	SDL_FillRect(front, 0, 0);
	Uint8 *keys = SDL_GetKeyState(0);
//	mxhwnd.SetTicks();
	

	
	
	
	rl.Reset();
	obj.Reset();
	float angle_x = 0, angle_y = 0, angle_z = 0;

	
/*  0 Triangle
 1 Circle
 2 Cross
 3 Square
 4 Left trigger
 5 Right trigger
 6 Down
 7 Left
 8 Up
 9 Right
10 Select
11 Start
12 Home
13 Hold
*/
	
	/*
	mxhwnd.text.settextcolor(D3DCOLOR_XRGB(rand()%255,rand()%255,rand()%255));
	mxhwnd.text.printtextf(10,10," Use Left to rotate +x Right to rotate -x\n Up to rotate +z Down to rotate-z\n Use W,A,S,D,Z,X to rotate camera position x,y,z");
	*/

	if(SDL_JoystickGetButton(stick,7)||keys[SDLK_DOWN]) {
		angle_x = 1;
	}
	
	if(SDL_JoystickGetButton(stick, 9)) {
		angle_x = -1;
	}
	if(SDL_JoystickGetButton(stick, 8)) {
		angle_z = 1;
	}
	if(SDL_JoystickGetButton(stick, 6)) {
		angle_z = -1;
	}
	if(SDL_JoystickGetButton(stick, 0)) {
		cam.pos.z ++;
	}
	if(SDL_JoystickGetButton(stick, 1)) {
		cam.pos.z --;
	}
	if(SDL_JoystickGetButton(stick, 2)) {
		cam.pos.x++;
	}
	if(SDL_JoystickGetButton(stick, 3)) {
		cam.pos.x--;
	}
	if(SDL_JoystickGetButton(stick, 4)) {
		cam.pos.y++;
	}
	if(SDL_JoystickGetButton(stick, 5)) {
		cam.pos.y--;
	}
	
	rotation_matrix.BuildXYZ(angle_x,angle_y,angle_z);
	
	obj.TransformObject(rotation_matrix,0);
	// Model the Object to our world
	obj.ModelToWorld();
	// Build Camera (Model Euler) Way ZYX
	cam.BuildEuler(5);

	obj.RemoveFaces(rotation_matrix,cam.pos);

	// World Cordinates to Camera Cordinates
	cam.WorldToCamera(obj);
	// Camera to Perspective
	cam.CameraToPerspective(obj);
	// Perspective to Screen cordinates
	cam.PerspectiveToScreen(obj);
	obj.BuildRenderList(rl);
	graph.Begin();
	graph.DrawSolidPolys(rl);
	graph.End();
	
//	mxhwnd.WaitTicks(5);

}

int init() {
	  if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0)
		  return -1;
	  front = SDL_SetVideoMode(480,272,0,0);
	  max_clip_x = front->w;
	  max_clip_y = front->h;
	  stick = SDL_JoystickOpen(0);
	  SDL_JoystickEventState(SDL_ENABLE);

		mx3d::BuildTables();
		// init code here
		if(obj.LoadPLG("MXCUBE.PLG", scale, obj_pos, obj_rot)) {	
			cam.Init(0,cam_pos,cam_dir,0,50.0f,500.0f,90.0f,float(front->w),float(front->h));
			obj.world_pos.x = 0.0f;
			obj.world_pos.y = 0.0f;
			obj.world_pos.z = 100.0f;
		}
		else { printf("ERROR!"); exit(0); }
	return 0;
}


extern "C" int SDL_main(int argc, char **argv) {
	init();
	SDL_Event e;
	int active = 1;

	while(active == 1) {
		SDL_FillRect(front, 0,0);
		render(0);
		SDL_UpdateRect(front, 0,0,front->w, front->h);
		if(SDL_PollEvent(&e)) {
			switch(e.type) {
				case SDL_QUIT:
					active = 0;
					break;
			}
		}
	}
	SDL_FreeSurface(front);
	SDL_JoystickClose(stick);
	SDL_Quit();
	return 0;
}