mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-12-30 18:31:30 +00:00
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
|
|
#include <string.h>
|
|
#include "sprites.h"
|
|
|
|
SpriteShadow sprshad;
|
|
|
|
void sprite_update(char* vicbank) {
|
|
memcpy(vicbank + 0x3f8, sprshad.spr_shapes, 8);
|
|
VIC.spr_ena = sprshad.spr_ena;
|
|
VIC.spr_hi_x = sprshad.spr_hi_x;
|
|
memcpy(VIC.spr_pos, sprshad.spr_pos, 16);
|
|
memcpy(VIC.spr_color, sprshad.spr_color, 8);
|
|
VIC.spr_exp_x = sprshad.spr_exp_x;
|
|
VIC.spr_exp_y = sprshad.spr_exp_y;
|
|
VIC.spr_bg_prio = sprshad.spr_bg_prio;
|
|
VIC.spr_mcolor = sprshad.spr_mcolor;
|
|
VIC.spr_mcolor0 = sprshad.spr_mcolor0;
|
|
VIC.spr_mcolor1 = sprshad.spr_mcolor1;
|
|
}
|
|
|
|
void sprite_shape(char* vicbank, byte index, const char* sprite_data) {
|
|
memcpy(vicbank + index*64, sprite_data, 64);
|
|
}
|
|
|
|
const byte BITS[8] = {
|
|
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
|
|
};
|
|
|
|
void sprite_draw(byte i, word x, byte y, byte shape) {
|
|
byte mask = BITS[i]; // 1 << i;
|
|
sprshad.spr_ena |= mask;
|
|
if (x >> 8)
|
|
sprshad.spr_hi_x |= mask;
|
|
else
|
|
sprshad.spr_hi_x &= ~mask;
|
|
sprshad.spr_pos[i].x = x;
|
|
sprshad.spr_pos[i].y = y;
|
|
sprshad.spr_shapes[i] = shape;
|
|
}
|
|
|
|
void sprite_clear(void) {
|
|
sprshad.spr_ena = 0;
|
|
}
|
|
|