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Avoid double transforming

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This commit is contained in:
Gwilym Kuiper 2022-10-08 17:12:50 +01:00
parent e63e830a9c
commit faed7b456f
1 changed files with 2 additions and 5 deletions
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7
agb/src/display/tiled/map.rs
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@ -245,7 +245,6 @@ pub struct AffineMap {
scroll: Vector2D<i16>,
transform_origin: Vector2D<Num<i32, 8>>,
transform: BgAffineSetData,
tiles: Vec<u8>,
@ -279,7 +278,7 @@ impl TiledMapPrivate for AffineMap {
self.size
}
fn update_bg_registers(&self) {
let register_pos = self.transform.position + self.transform_origin;
let register_pos = self.transform.position;
self.bg_x().set(register_pos.x);
self.bg_y().set(register_pos.y);
self.bg_affine_matrix().set(self.transform.matrix);
@ -307,7 +306,6 @@ impl AffineMap {
scroll: Default::default(),
transform_origin: Default::default(),
transform: Default::default(),
tiles: vec![Default::default(); size.num_tiles()],
@ -353,11 +351,10 @@ impl AffineMap {
scale: impl Into<Vector2D<Num<i16, 8>>>,
rotation: impl Into<Num<u16, 8>>,
) {
self.transform_origin = transform_origin.into();
let scale = scale.into();
let rotation = rotation.into();
self.transform =
crate::syscall::bg_affine_matrix(self.transform_origin, self.scroll, scale, rotation);
crate::syscall::bg_affine_matrix(transform_origin.into(), self.scroll, scale, rotation);
}
fn bg_x(&self) -> MemoryMapped<Num<i32, 8>> {