mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-11-25 18:33:11 +00:00
123 lines
13 KiB
C
123 lines
13 KiB
C
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#include "neslib.h"
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const unsigned char TILESET[8*256] = {/*{w:8,h:8,bpp:1,count:256,brev:1,np:2,pofs:8,remap:[0,1,2,4,5,6,7,8,9,10,11,12]}*/
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0x3f,0x3f,0x1f,0x1f,0x0f,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xc3,0xe7,0xff,0xdb,0x3c,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xfc,0xfc,0xf8,0xf8,0xf0,0xe0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||
|
|
};
|
||
|
|
|
||
|
|
//variables
|
||
|
|
|
||
|
|
static unsigned char i;
|
||
|
|
static unsigned char pad,spr;
|
||
|
|
static unsigned char touch;
|
||
|
|
static unsigned char frame;
|
||
|
|
|
||
|
|
//two players coords
|
||
|
|
|
||
|
|
static unsigned char cat_x[2];
|
||
|
|
static unsigned char cat_y[2];
|
||
|
|
|
||
|
|
|
||
|
|
//first player metasprite, data structure explained in neslib.h
|
||
|
|
|
||
|
|
const unsigned char metaCat1[]={
|
||
|
|
0, 0, 0x50, 0,
|
||
|
|
8, 0, 0x51, 1,
|
||
|
|
16, 0, 0x52, 0,
|
||
|
|
0, 8, 0x60, 0,
|
||
|
|
8, 8, 0x61, 0,
|
||
|
|
16, 8, 0x62, 0,
|
||
|
|
0, 16, 0x70, 0,
|
||
|
|
8, 16, 0x71, 0,
|
||
|
|
16, 16, 0x72, 0,
|
||
|
|
128
|
||
|
|
};
|
||
|
|
|
||
|
|
//second player metasprite, the only difference is palette number
|
||
|
|
|
||
|
|
const unsigned char metaCat2[]={
|
||
|
|
0, 0, 0x50, 0,
|
||
|
|
8, 0, 0x51, 1,
|
||
|
|
16, 0, 0x52, 0,
|
||
|
|
0, 8, 0x60, 1,
|
||
|
|
8, 8, 0x61, 1,
|
||
|
|
16, 8, 0x62, 1,
|
||
|
|
0, 16, 0x70, 1,
|
||
|
|
8, 16, 0x71, 1,
|
||
|
|
16, 16, 0x72, 1,
|
||
|
|
128
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void main(void)
|
||
|
|
{
|
||
|
|
//copy tileset to RAM
|
||
|
|
vram_write((unsigned char*)TILESET, 0x0, sizeof(TILESET));
|
||
|
|
|
||
|
|
ppu_on_all();//enable rendering
|
||
|
|
|
||
|
|
//set initial coords
|
||
|
|
|
||
|
|
cat_x[0]=52;
|
||
|
|
cat_y[0]=100;
|
||
|
|
cat_x[1]=180;
|
||
|
|
cat_y[1]=100;
|
||
|
|
|
||
|
|
//init other vars
|
||
|
|
|
||
|
|
touch=0;//collision flag
|
||
|
|
frame=0;//frame counter
|
||
|
|
|
||
|
|
//now the main loop
|
||
|
|
|
||
|
|
while(1)
|
||
|
|
{
|
||
|
|
ppu_waitnmi();//wait for next TV frame
|
||
|
|
|
||
|
|
//flashing color for touch
|
||
|
|
|
||
|
|
i=frame&1?0x30:0x2a;
|
||
|
|
|
||
|
|
pal_col(17,touch?i:0x21);//set first sprite color
|
||
|
|
pal_col(21,touch?i:0x26);//set second sprite color
|
||
|
|
|
||
|
|
//process players
|
||
|
|
|
||
|
|
spr=0;
|
||
|
|
|
||
|
|
for(i=0;i<2;++i)
|
||
|
|
{
|
||
|
|
//display metasprite
|
||
|
|
|
||
|
|
spr=oam_meta_spr(cat_x[i],cat_y[i],spr,!i?metaCat1:metaCat2);
|
||
|
|
|
||
|
|
//poll pad and change coordinates
|
||
|
|
|
||
|
|
pad=pad_poll(i);
|
||
|
|
|
||
|
|
if(pad&PAD_LEFT &&cat_x[i]> 0) cat_x[i]-=2;
|
||
|
|
if(pad&PAD_RIGHT&&cat_x[i]<232) cat_x[i]+=2;
|
||
|
|
if(pad&PAD_UP &&cat_y[i]> 0) cat_y[i]-=2;
|
||
|
|
if(pad&PAD_DOWN &&cat_y[i]<212) cat_y[i]+=2;
|
||
|
|
}
|
||
|
|
|
||
|
|
//check for collision for a smaller bounding box
|
||
|
|
//metasprite is 24x24, collision box is 20x20
|
||
|
|
|
||
|
|
if(!(cat_x[0]+22< cat_x[1]+2 ||
|
||
|
|
cat_x[0]+ 2>=cat_x[1]+22||
|
||
|
|
cat_y[0]+22< cat_y[1]+2 ||
|
||
|
|
cat_y[0]+ 2>=cat_y[1]+22)) touch=1; else touch=0;
|
||
|
|
|
||
|
|
frame++;
|
||
|
|
}
|
||
|
|
}
|