GRRLIB/examples/gamecube/unlimited2d/source/main.c

/*===========================================
    NoNameNo FAKE Unlimited 2D Sprites rout ;)
    It's a lame but Well Known technic....
============================================*/
#include <grrlib.h>

#include <stdlib.h>
#include <math.h>
#include <malloc.h>
#include <ogc/pad.h>


#include "logo_png.h"
#include "font_png.h"
#include "ball_png.h"


int main() {
    int screen_index = 0;
    const int tex_screen_count = 3;
    float t = 0;
    const int R = 81;
    const int r = 71;
    const int d = 120;
    float f = 0;
    float ff = 0;
    float spr = 0;
    int n = 1;


    GRRLIB_Init();
    PAD_Init();

    GRRLIB_Settings.antialias = false;

    GRRLIB_texImg *tex_screen[tex_screen_count];
    for(int i=0; i<tex_screen_count; i++) {
        tex_screen[i] = GRRLIB_CreateEmptyTextureFmt(rmode->fbWidth, rmode->efbHeight, GX_TF_RGB565);
    }

    GRRLIB_texImg *tex_ball = GRRLIB_LoadTexture(ball_png);
    GRRLIB_texImg *tex_logo = GRRLIB_LoadTexture(logo_png);
    GRRLIB_texImg *tex_font = GRRLIB_LoadTexture(font_png);
    GRRLIB_InitTileSet(tex_font, 16, 16, 32);


    for(int i=0; i<=255; i+=1) {
        GRRLIB_Printf((640-(16*16))/2, 200, tex_font, 0xFFFFFF00|i, 1, "HOW MANY SPRITES");
        GRRLIB_Printf((640-(16*20))/2, 216, tex_font, 0xFFFFFF00|i, 1, "CAN YOU DISPLAY WITH");
        GRRLIB_DrawImg((640-352)/2, 248, tex_logo, 0, 1, 1, 0xFFFFFF00|i);
        GRRLIB_Printf((640-(16*28))/2, 480-16, tex_font, 0xFFFFFF00|i, 1, "BY NONAMENO FROM GRRLIB TEAM");
        GRRLIB_Render();
    }
    for(int i=255; i>=0; i-=2) {
        GRRLIB_Printf((640-(16*16))/2, 200, tex_font, 0xFFFFFF00|i, 1, "HOW MANY SPRITES");
        GRRLIB_Printf((640-(16*20))/2, 216, tex_font, 0xFFFFFF00|i, 1, "CAN YOU DISPLAY WITH");
        GRRLIB_DrawImg((640-352)/2, 248, tex_logo, 0, 1, 1, 0xFFFFFF00|i);
        GRRLIB_Printf((640-(16*28))/2, 480-16, tex_font, 0xFFFFFF00|i, 1, "BY NONAMENO FROM GRRLIB TEAM");
        GRRLIB_Render();
    }

    while(1) {
        PAD_ScanPads();

        GRRLIB_DrawImg(0, 0, tex_screen[screen_index], 0, 1, 1, 0xFFFFFFFF);
        GRRLIB_DrawImg(((R + r-ff)*cos(t-f) - d*cos(((R + r-f)/r)*t))+rmode->fbWidth/2-32, ((R + r-ff)*sin(t) - d*sin(((R + r)/r)*t)-f)+rmode->efbHeight/2-32, tex_ball, 1, 1, 1, 0xFFFFFFFF);
        GRRLIB_Screen2Texture(0, 0, tex_screen[screen_index], GX_FALSE);
        GRRLIB_Printf((640-(16*6*5))/2+5, 200+5, tex_font, 0x00000088, 5, "%06d", (int)spr);
        GRRLIB_Printf((640-(16*6*5))/2, 200, tex_font, 0xFFEEEE88, 5, "%06d", (int)spr);

        GRRLIB_Render();
        screen_index++;
        screen_index %= tex_screen_count;
        spr+=0.1f;
        t+=0.01f;

        if(t>n*2*M_PI) {
            n++;
            f+=0.01f;
        }

        if(f>2*M_PI) {
            f=0;
            ff+=0.02f;
        }


        if(PAD_ButtonsDown(0) & PAD_BUTTON_START)
            break;
    }
    GRRLIB_FreeTexture(tex_logo);
    GRRLIB_FreeTexture(tex_ball);
    GRRLIB_FreeTexture(tex_font);
    for(int i=0; i<tex_screen_count; i++) {
        GRRLIB_FreeTexture(tex_screen[i]);
    }
    GRRLIB_Exit(); // Be a good boy, clear the memory allocated by GRRLIB
    return 0;
}