// Tank War Beta v0.1
// Created by Lars Knaup
// on 19.02.2011
// sprites by Timo Keim

#include <oslib/oslib.h>

#define HSIZE 480
#define VSIZE 272

PSP_MODULE_INFO("TankWar", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER | THREAD_ATTR_VFPU);

OSL_IMAGE* tank;
OSL_IMAGE* bg;

int positionx = HSIZE / 2;
int positiony = VSIZE / 2;


// Funktion: ReadKeys
// Aufgabe: Reagieren auf Tasten
// X: Drehen um 90° gegen den Uhrzeigersinn
// Analog Stick: Fahren
// R: Schießen
void ReadKeys()
{
    oslReadKeys();
    if ((osl_keys->held.right) && (positionx < 374)) positionx +=1;
    if ((osl_keys->held.left) && (positionx > 0)) positionx -=1;
    if ((osl_keys->held.up) && (positiony < 222)) positiony += 1;
    if ((osl_keys->held.down) && (positiony > 0)) positiony -= 1;
}


int main (int argc, char* argv[])
{
    oslInit(0);
    oslInitGfx(OSL_PF_8888, 1);
    oslInitConsole();
    tank = oslLoadImageFile("tank.png", OSL_IN_VRAM, OSL_PF_5551);
    bg = oslLoadImageFile("bg.png", OSL_IN_VRAM, OSL_PF_5551);

    while(!osl_quit)
    {
        ReadKeys();
        oslStartDrawing();
        oslClearScreen(RGB(0,0,0));

        oslDrawImage(bg);
        oslDrawImageXY(tank, positionx, positiony);

        oslEndDrawing();
        oslSyncFrame();
    }

    oslEndGfx();
    oslQuit();

    return 0;
}