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Check input arguments for set staff patrol command

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This commit is contained in:
Michał Janiszewski
2016-01-15 19:56:22 +01:00
parent 57420cbc66
commit 35147bd973
1 changed files with 14 additions and 1 deletions
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15
src/peep/staff.c
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@@ -333,7 +333,20 @@ void game_command_set_staff_patrol(int *eax, int *ebx, int *ecx, int *edx, int *
int x = *eax;
int y = *ecx;
uint16 sprite_id = *edx;
rct_peep *peep = &g_sprite_list[sprite_id].peep;
if (sprite_id >= MAX_SPRITES)
{
*ebx = MONEY32_UNDEFINED;
log_warning("Invalid sprite id %u", sprite_id);
return;
}
rct_sprite *sprite = &g_sprite_list[sprite_id];
if (sprite->unknown.sprite_identifier != SPRITE_IDENTIFIER_PEEP || sprite->peep.type != PEEP_TYPE_STAFF)
{
*ebx = MONEY32_UNDEFINED;
log_warning("Invalid type of sprite %u for game command", sprite_id);
return;
}
rct_peep *peep = &sprite->peep;
int patrolOffset = peep->staff_id * (64 * 64 / 8);
int patrolIndex = ((x & 0x1F80) >> 7) | ((y & 0x1F80) >> 1);
int mask = 1u << (patrolIndex & 0x1F);