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Fix bonus items sometimes overriding apples in Snake minigame

This commit is contained in:
Louis-Antoine 2020-08-24 00:34:44 +02:00
parent e340d74e4d
commit cb06d05692
1 changed files with 12 additions and 6 deletions
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18
src/d_clisrv.c
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@ -1269,19 +1269,25 @@ static UINT8 Snake_GetOppositeDir(UINT8 dir)
return 12 + 5 - dir;
}
static void Snake_FindFreeSlot(UINT8 *x, UINT8 *y, UINT8 headx, UINT8 heady)
static void Snake_FindFreeSlot(UINT8 *freex, UINT8 *freey, UINT8 headx, UINT8 heady)
{
UINT8 x, y;
UINT16 i;
do
{
*x = M_RandomKey(SNAKE_NUM_BLOCKS_X);
*y = M_RandomKey(SNAKE_NUM_BLOCKS_Y);
x = M_RandomKey(SNAKE_NUM_BLOCKS_X);
y = M_RandomKey(SNAKE_NUM_BLOCKS_Y);
for (i = 0; i < snake->snakelength; i++)
if (*x == snake->snakex[i] && *y == snake->snakey[i])
if (x == snake->snakex[i] && y == snake->snakey[i])
break;
} while (i < snake->snakelength || (*x == headx && *y == heady));
} while (i < snake->snakelength || (x == headx && y == heady)
|| (x == snake->applex && y == snake->appley)
|| (snake->bonustype != SNAKE_BONUS_NONE && x == snake->bonusx && y == snake->bonusy));
*freex = x;
*freey = y;
}
static void Snake_Handle(void)
@ -1412,7 +1418,7 @@ static void Snake_Handle(void)
// Check collision with apple
if (x == snake->applex && y == snake->appley)
{
if (snake->snakelength + 1 < SNAKE_NUM_BLOCKS_X * SNAKE_NUM_BLOCKS_Y)
if (snake->snakelength + 3 < SNAKE_NUM_BLOCKS_X * SNAKE_NUM_BLOCKS_Y)
{
snake->snakelength++;
snake->snakex [snake->snakelength - 1] = snake->snakex [snake->snakelength - 2];