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// PSP Space Invaders
// by JumpR
#include <oslib/oslib.h>
PSP_MODULE_INFO("PSP Space Invaders", 0, 1, 0);
PSP_HEAP_SIZE_MAX();
OSL_IMAGE *player, *background, *bullet;
int shooting = 0;
int main()
{
	oslInit(0);
	oslInitGfx(OSL_PF_8888, 1);
	oslSetTransparentColor(RGB(255,0,0));
	player = oslLoadImageFile("player.png", OSL_IN_RAM, OSL_PF_5551);
	background = oslLoadImageFile("background.png", OSL_IN_RAM, OSL_PF_5551);
	bullet = oslLoadImageFile("bullet.png", OSL_IN_RAM, OSL_PF_5551);
	if (!player || !background || !bullet){
		oslDebug("Some files seem to be missing, can't continue.");
	}
	player->x = 6;
	player->y = 250;
	while (!osl_quit)
    {
		oslStartDrawing();
		oslReadKeys();
		if (osl_keys->held.left) player->x -= 2;
		if (osl_keys->held.right) player->x += 2;
		if (osl_keys->held.cross) shoot();
		oslDrawImage(background);
		oslDrawImage(player);
		if (shooting == 1)
		{
			oslDrawImage(bullet);
			bullet->y -= 2;
			if (bullet->y = 5) shooting = 0;
		}
		oslEndDrawing();
		oslSyncFrame();        
    }
    oslEndGfx();
    oslQuit();
	return 0;
}
int shoot()
{
	if (shooting == 0)
	{
		shooting = 1;
		bullet->x = player->x + 15;
		bullet->y = player->y - 5;
	}
}