Noratrieb/game-wip-dontplay
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Eliminate negative coordinates

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They were making coordinate calculations more difficult,
and probably slower due to having to special case negative coordinates
This commit is contained in:
crumblingstatue 2023-04-03 10:32:20 +02:00
parent 67b2098ffb
commit 2a2c8f721c
3 changed files with 9 additions and 53 deletions
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8
src/game.rs
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@ -28,12 +28,12 @@ fn for_each_tile(camera_offset: WorldPos, mut f: impl FnMut(TilePos, ScreenPos))
for x in (-32..NATIVE_RESOLUTION.w + 32).step_by(32) {
f(
TilePos {
x: wp_to_tp(camera_offset.x + x as WorldPosScalar),
y: wp_to_tp(camera_offset.y + y as WorldPosScalar),
x: wp_to_tp(camera_offset.x.saturating_add(x as WorldPosScalar)),
y: wp_to_tp(camera_offset.y.saturating_add(y as WorldPosScalar)),
},
ScreenPos {
x: (x as i32 - camera_offset.x % 32) as i16,
y: (y as i32 - (camera_offset.y % 32)) as i16,
x: ((x as WorldPosScalar).saturating_sub(camera_offset.x % 32)) as i16,
y: ((y as WorldPosScalar).saturating_sub(camera_offset.y % 32)) as i16,
},
)
}