TTileItem *GetItemOnTileInCollision(
TTileItem *item, Vec2i pos, int mask, CollisionTeam team, int isDogfight)
{
Vec2i tv = Vec2iToTile(pos);
Vec2i dv;
if (!MapIsTileIn(&gMap, tv))
{
return NULL;
}
// Check collisions with all other items on this tile, in all 8 directions
for (dv.y = -1; dv.y <= 1; dv.y++)
{
for (dv.x = -1; dv.x <= 1; dv.x++)
{
CArray *tileThings = &MapGetTile(&gMap, Vec2iAdd(tv, dv))->things;
for (int i = 0; i < (int)tileThings->size; i++)
{
TTileItem *ti = ThingIdGetTileItem(CArrayGet(tileThings, i));
// Don't collide if items are on the same team
if (!CollisionIsOnSameTeam(ti, team, isDogfight))
{
if (item != ti &&
(ti->flags & mask) &&
ItemsCollide(item, ti, pos))
{
return ti;
}
}
}
}
}
return NULL;
}
void CollideAllItems(
const TTileItem *item, const Vec2i pos,
const int mask, const CollisionTeam team, const bool isPVP,
CollideItemFunc func, void *data)
{
const Vec2i tv = Vec2iToTile(pos);
Vec2i dv;
// Check collisions with all other items on this tile, in all 8 directions
for (dv.y = -1; dv.y <= 1; dv.y++)
{
for (dv.x = -1; dv.x <= 1; dv.x++)
{
const Vec2i dtv = Vec2iAdd(tv, dv);
if (!MapIsTileIn(&gMap, dtv))
{
continue;
}
CArray *tileThings = &MapGetTile(&gMap, dtv)->things;
for (int i = 0; i < (int)tileThings->size; i++)
{
TTileItem *ti = ThingIdGetTileItem(CArrayGet(tileThings, i));
// Don't collide if items are on the same team
if (!CollisionIsOnSameTeam(ti, team, isPVP))
{
if (item != ti &&
(ti->flags & mask) &&
ItemsCollide(item, ti, pos))
{
func(ti, data);
}
}
}
}
}
}
TTileItem *GetItemOnTileInCollision(
TTileItem *item, Vec2i pos, int mask, CollisionTeam team)
{
int dy;
int tx = pos.x / TILE_WIDTH;
int ty = pos.y / TILE_HEIGHT;
if (tx == 0 || ty == 0 || tx >= XMAX - 1 || ty >= YMAX - 1)
{
return NULL;
}
// Check collisions with all other items on this tile, in all 8 directions
for (dy = -1; dy <= 1; dy++)
{
int dx;
for (dx = -1; dx <= 1; dx++)
{
TTileItem *i = Map(tx + dx, ty + dy).things;
while (i)
{
// Don't collide if items are on the same team
if (!IsOnSameTeam(i, team))
{
if (item != i &&
(i->flags & mask) &&
ItemsCollide(item, i, pos))
{
return i;
}
}
i = i->next;
}
}
}
return NULL;
}
