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fix the incorrect copying of map tiles issue

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Corwin 2024-03-06 12:21:36 +00:00
parent 20a74fe319
commit 78146bc963
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1 changed files with 11 additions and 6 deletions
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17
agb/src/display/tiled/infinite_scrolled_map.rs
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@ -306,15 +306,18 @@ impl<'a> InfiniteScrolledMap<'a> {
self.current_pos = new_pos; self.current_pos = new_pos;
let old_tile_x = div_floor(old_pos.x, 8);
let old_tile_y = div_floor(old_pos.y, 8);
let new_tile_x = div_floor(new_pos.x, 8); let new_tile_x = div_floor(new_pos.x, 8);
let new_tile_y = div_floor(new_pos.y, 8); let new_tile_y = div_floor(new_pos.y, 8);
let difference_tile_x = div_ceil(difference.x, 8); let difference_tile_x = new_tile_x - old_tile_x;
let difference_tile_y = div_ceil(difference.y, 8); let difference_tile_y = new_tile_y - old_tile_y;
let size = self.map.size(); let size = self.map.size();
let vertical_rect_to_update: Rect<i32> = if div_floor(old_pos.x, 8) != new_tile_x { let vertical_rect_to_update: Rect<i32> = if difference_tile_x != 0 {
// need to update the x line // need to update the x line
// calculate which direction we need to update // calculate which direction we need to update
let direction = difference.x.signum(); let direction = difference.x.signum();
@ -332,13 +335,14 @@ impl<'a> InfiniteScrolledMap<'a> {
Rect::new( Rect::new(
(line_to_update, new_tile_y - 1).into(), (line_to_update, new_tile_y - 1).into(),
(difference_tile_x, y_tiles_to_update).into(), (-difference_tile_x, y_tiles_to_update).into(),
) )
.abs()
} else { } else {
Rect::new((0i32, 0).into(), (0i32, 0).into()) Rect::new((0i32, 0).into(), (0i32, 0).into())
}; };
let horizontal_rect_to_update: Rect<i32> = if div_floor(old_pos.y, 8) != new_tile_y { let horizontal_rect_to_update: Rect<i32> = if difference_tile_y != 0 {
// need to update the y line // need to update the y line
// calculate which direction we need to update // calculate which direction we need to update
let direction = difference.y.signum(); let direction = difference.y.signum();
@ -356,8 +360,9 @@ impl<'a> InfiniteScrolledMap<'a> {
Rect::new( Rect::new(
(new_tile_x - 1, line_to_update).into(), (new_tile_x - 1, line_to_update).into(),
(x_tiles_to_update, difference_tile_y).into(), (x_tiles_to_update, -difference_tile_y).into(),
) )
.abs()
} else { } else {
Rect::new((0i32, 0).into(), (0i32, 0).into()) Rect::new((0i32, 0).into(), (0i32, 0).into())
}; };