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Updated Set Metatile IDs From Another Map (markdown)

ghoulslash 2023-04-28 07:33:26 -06:00
parent 2ba1f80ebf
commit ae31cb71b2
1 changed files with 6 additions and 6 deletions
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10
Set-Metatile-IDs-From-Another-Map.md

@ -6,19 +6,19 @@ credit to ghoulslash
Open fieldmap.c and add this function somewhere: Open fieldmap.c and add this function somewhere:
```c ```c
extern void DrawWholeMapView(void); extern void DrawWholeMapView(void);
void CopyMetatileIdsFromMapLayout(u16 mapGroup, u16 mapNum, const u8 pos[][2]) void CopyMetatileIdsFromMapLayout(u16 mapGroup, u16 mapNum, const struct UCoords8 *pos)
{ {
u32 i, block, x, y; u32 i, block, x, y;
struct MapLayout const *layout = Overworld_GetMapHeaderByGroupAndId(mapGroup, mapNum)->mapLayout; struct MapLayout const *layout = Overworld_GetMapHeaderByGroupAndId(mapGroup, mapNum)->mapLayout;
i = 0; i = 0;
do { do {
x = pos[i][0]; x = pos[i].x;
y = pos[i][1]; y = pos[i].y;
block = layout->map[x + layout->width * y]; block = layout->map[x + layout->width * y];
MapGridSetMetatileIdAt(x + MAP_OFFSET, y + MAP_OFFSET, block); MapGridSetMetatileIdAt(x + MAP_OFFSET, y + MAP_OFFSET, block);
i++; i++;
} while (pos[i][0] != 0xFF); } while (pos[i].x != 0xFF);
DrawWholeMapView(); DrawWholeMapView();
} }
@ -27,7 +27,7 @@ void CopyMetatileIdsFromMapLayout(u16 mapGroup, u16 mapNum, const u8 pos[][2])
It works by taking a map group and number and array of (x,y) positions and copies them into the current map from the given layout. An example of the `pos` argument: It works by taking a map group and number and array of (x,y) positions and copies them into the current map from the given layout. An example of the `pos` argument:
- If I want to copy the first 2 columns of a map from y positions 0 through 7: - If I want to copy the first 2 columns of a map from y positions 0 through 7:
```c ```c
static const u8 sTestPositions[][2] = { static const struct UCoords8 sTestPositions[] = {
{0, 0}, {0, 1}, {0, 2}, {0, 3}, {0, 4}, {0, 5}, {0, 6}, {0, 7}, {0, 0}, {0, 1}, {0, 2}, {0, 3}, {0, 4}, {0, 5}, {0, 6}, {0, 7},
{1, 0}, {1, 1}, {1, 2}, {1, 3}, {1, 4}, {1, 5}, {1, 6}, {1, 7}, {1, 0}, {1, 1}, {1, 2}, {1, 3}, {1, 4}, {1, 5}, {1, 6}, {1, 7},
{0xFF, 0xFF}, // to signify the end of the array {0xFF, 0xFF}, // to signify the end of the array