void update_map_collide(SlabKind slbkind, MapSubtlCoord stl_x, MapSubtlCoord stl_y)
{
struct Map *mapblk;
mapblk = get_map_block_at(stl_x, stl_y);
struct Column *colmn;
colmn = get_map_column(mapblk);
if (column_invalid(colmn)) {
ERRORLOG("Invalid column at (%d,%d)",(int)stl_x,(int)stl_y);
}
unsigned long smask;
smask = colmn->solidmask;
MapSubtlCoord stl_z;
for (stl_z=0; stl_z < map_subtiles_z; stl_z++)
{
if ((smask & 0x01) == 0)
break;
smask >>= 1;
}
struct SlabAttr *slbattr;
slbattr = get_slab_kind_attrs(slbkind);
unsigned long nflags;
if (slbattr->field_2 < stl_z) {
nflags = slbattr->block_flags;
} else {
nflags = slbattr->noblck_flags;
}
mapblk->flags &= (SlbAtFlg_Unk80|SlbAtFlg_Unk04);
mapblk->flags |= nflags;
}
/**
* Returns amount of filled subtiles at bottom of column at given coords.
* @param stl_x Subtile for which column height should be returned, X coord.
* @param stl_y Subtile for which column height should be returned, Y coord.
*/
long get_floor_filled_subtiles_at(MapSubtlCoord stl_x, MapSubtlCoord stl_y)
{
const struct Column *col;
col = get_column_at(stl_x, stl_y);
if (column_invalid(col))
return 0;
return (col->bitfields & 0xF0) >> 4;
}
/**
* Returns amount of filled subtiles at bottom of column at given map block.
* @param mapblk The map block for which column height should be returned.
*/
long get_map_floor_filled_subtiles(const struct Map *mapblk)
{
const struct Column *col;
col = get_map_column(mapblk);
if (column_invalid(col))
return 0;
return (col->bitfields & 0xF0) >> 4;
}
/**
* Returns amount of filled subtiles at top of column at given coords.
* @param stl_x Subtile for which column height should be returned, X coord.
* @param stl_y Subtile for which column height should be returned, Y coord.
*/
long get_ceiling_filled_subtiles_at(MapSubtlCoord stl_x, MapSubtlCoord stl_y)
{
const struct Column *colmn;
colmn = get_column_at(stl_x, stl_y);
if (column_invalid(colmn))
return 0;
return (colmn->bitfields & 0x0E) >> 1;
}
/**
* Returns amount of filled subtiles at top of column at given map block.
* @param mapblk The map block for which column height should be returned.
*/
long get_map_ceiling_filled_subtiles(const struct Map *mapblk)
{
const struct Column *col;
col = get_map_column(mapblk);
if (column_invalid(col))
return 0;
return (col->bitfields & 0x0E) >> 1;
}
/**
* Sets amount of filled subtiles at top of a column at given map block.
* @param mapblk The map block for which filled height should be set.
* @param n Amount of subtiles.
*/
void set_map_ceiling_filled_subtiles(struct Map *mapblk, MapSubtlCoord n)
{
struct Column *col;
col = get_map_column(mapblk);
if (column_invalid(col))
return;
col->bitfields &= ~0x0E;
col->bitfields |= (n<<1) & 0x0E;
}