#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
#include <ogcsys.h>
#include <gccore.h>
#include <math.h>

static void *xfb = NULL;
static GXRModeObj *rmode = NULL;

int main(int argc, char **argv) {

	VIDEO_Init();
	PAD_Init();

	switch(VIDEO_GetCurrentTvMode()) {
		case VI_NTSC:
			rmode = &TVNtsc480IntDf;
			break;
		case VI_PAL:
			rmode = &TVPal528IntDf;
			break;
		case VI_MPAL:
			rmode = &TVMpal480IntDf;
			break;
		default:
			rmode = &TVNtsc480IntDf;
			break;
	}

	xfb = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));
	console_init(xfb,20,20,rmode->fbWidth,rmode->xfbHeight,rmode->fbWidth*VI_DISPLAY_PIX_SZ);

	VIDEO_Configure(rmode);
	VIDEO_SetNextFramebuffer(xfb);
	VIDEO_SetBlack(FALSE);
	VIDEO_Flush();
	VIDEO_WaitVSync();
	if(rmode->viTVMode&VI_NON_INTERLACE) VIDEO_WaitVSync();

    double r=0, x=1, y=0, s=0, a=0, p=0;
    printf("\n\n***************************************************************\n\n");
    printf("Give radius much much greater than 1\nRadius = ");
    scanf("%lf",&r);
    while(x<=r)
        {
                y=sqrt(r*r- x*x);
                s=s+y;
                x=x+1;
        }
    a=(s*4);
    p=a/(r*r);
    printf("Pi = %1.10lf",p);
    printf("\n\n***************************************************************\n\n");
    getchar();
    return 0;

	while(1) {

		VIDEO_WaitVSync();
	}

}