#include <stdlib.h>
#include <time.h>
#include <math.h>
#include <string.h>
#include <stdio.h>

#define uint8 unsigned char
#define uint32 unsigned int

#include "cSGL_Color.h"
#include "cSGL_Perlin.h"
#include "cSGL_Texture.h"
#include "SoftGL.d.h"

SGL_Interface SGL;
SGL_Texture_Handler textures;

int screenW;
int screenH;

SGL_RECT dest, src, dest2,src2;
int xdir, ydir, xdir2, ydir2;

void Lesson_Main()
{
	screenW = 320;
	screenH = 240;
	SGL.SGL_Init(screenW,screenH);
	srand(time(0));

	textures.LoadBMP_To_Texture("test.bmp");
	textures.LoadBMP_To_Texture("test2.bmp");

	dest.x1 = 100;
	dest.y1 = 100;

	src.x1 = 0;
	src.y1 = 0;
	src.x2 = 256;
	src.y2 = 256;

	dest2.x1 = 200;
	dest2.y1 = 200;

	src2.x1 = 0;
	src2.y1 = 0;
	src2.x2 = 256;
	src2.y2 = 256;

	xdir=1;
	ydir=1;
	xdir2=-1;
	ydir2=-1;
}

int Lesson_GetPixel(int x, int y)
{
	return SGL.SGL_GetPixel(x, y);
}

void Lesson_Quit()
{
	SGL.SGL_Quit();
}

void Lesson_Render()
{
	SGL.SGL_ClearScreen();
	SGL.SGL_Blit(dest,src,textures[0]);
	SGL.SGL_Blit(dest2,src2,textures[1]);

	dest.x1+=xdir;
	dest.y1+=ydir;
	if(dest.x1>screenW)	xdir = -1;
	if(dest.x1<0)	xdir = 1;
	if(dest.y1>screenH)	ydir = -1;
	if(dest.y1<0)	ydir = 1;

	dest2.x1+=xdir2;
	dest2.y1+=ydir2;
	if(dest2.x1>screenW)	xdir2 = -1;
	if(dest2.x1<0)	xdir2 = 1;
	if(dest2.y1>screenH)	ydir2 = -1;
	if(dest2.y1<0)	ydir2 = 1;
}