static int DrvDraw()
{
#define sw(n) ((nColor >> n) & 1 ? 0xff : 0)
#define color() BurnHighCol(pen >> 16, pen >> 8, pen, 0)
unsigned int back_pen = (sw(3) << 16) | (sw(4) << 8) | sw(5);
unsigned int fore_pen = (sw(0) << 16) | (sw(1) << 8) | sw(2);
for (int offs = 0; offs < 0x0600; offs++)
{
unsigned char x = offs << 4;
unsigned char y = offs >> 4 << 1;
unsigned char data = Mem[0x4000 + offs];
for (int i = 0; i < 8; i++)
{
unsigned int pen = (data & 0x80) ? fore_pen : back_pen;
PutPix(pBurnDraw + (x + 0 + (y + 0) * 256) * nBurnBpp, color());
PutPix(pBurnDraw + (x + 1 + (y + 0) * 256) * nBurnBpp, color());
PutPix(pBurnDraw + (x + 0 + (y + 1) * 256) * nBurnBpp, color());
PutPix(pBurnDraw + (x + 1 + (y + 1) * 256) * nBurnBpp, color());
x = x + 2;
data = data << 1;
}
}
return 0;
}
//移动
void Move()
{
switch (snake.dir)
{
case LEFT:
PutPix(BACK, snake.tail.x, snake.tail.y); //清除尾部
UpTail(); //更新尾部
PutPix(LEFT, snake.head.x-1, snake.head.y); //填充头部
stat[snake.head.x][snake.head.y] = LEFT; //更新头部
snake.head.x--;
break;
case UP:
PutPix(BACK, snake.tail.x, snake.tail.y); //清除尾部
UpTail(); //更新尾部
PutPix(LEFT, snake.head.x, snake.head.y-1); //填充头部
stat[snake.head.x][snake.head.y] = UP; //更新头部
snake.head.y--;
break;
case RIGHT:
PutPix(BACK, snake.tail.x, snake.tail.y); //清除尾部
UpTail(); //更新尾部
PutPix(LEFT, snake.head.x+1, snake.head.y); //填充头部
stat[snake.head.x][snake.head.y] = RIGHT; //更新头部
snake.head.x++;
break;
case DOWN:
PutPix(BACK, snake.tail.x, snake.tail.y); //清除尾部
UpTail(); //更新尾部
PutPix(LEFT, snake.head.x, snake.head.y+1); //填充头部
stat[snake.head.x][snake.head.y] = DOWN; //更新头部
snake.head.y++;
break;
}
}
static void rallybik_draw_sprites(int priority)
{
unsigned short *sprite = (unsigned short*)FCU2RAM;
for (int offs = 0; offs < (0x1000/2); offs += 4)
{
int attrib = sprite[offs + 1];
if ((attrib & 0x0c00) == priority)
{
int sy = (sprite[offs + 3] >> 7) & 0x1ff;
if (sy != 0x0100)
{
int code = sprite[offs] & 0x7ff;
int color = attrib & 0x3f;
int sx = (sprite[offs + 2] >> 7) & 0x1ff;
int flipx = attrib & 0x100;
int flipy = attrib & 0x200;
if (flipx) sx -= 15;
sx -= 31;
sy -= 16;
if (sy < -15 || sx < -15 || sy >= 240 || sx >= 320) continue;
{
int flip = 0;
if (flipx) flip |= 0x0f;
if (flipy) flip |= 0xf0;
unsigned char *gfx = FCU2ROM + (code * 0x100);
pTilePalette = &ToaPalette2[color << 4];
for (int y = 0; y < 16; y++, sy++) {
if (sy < 0 || sy >= 240) continue;
for (int x = 0; x < 16; x++, sx++) {
if (sx < 0 || sx >= 320) continue;
int pxl = gfx[((y * 16) + x) ^ flip];
if (pxl) {
PutPix(pBurnDraw + ((sy * 320) + sx) * nBurnBpp, pTilePalette[pxl]);
}
}
sx -= 16;
}
}
}
}
