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Clean up and fixes for collision handling.

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logaritmisk
2015-11-17 09:02:09 +01:00
parent 2ef29c4021
commit 3749e8d101
2 changed files with 14 additions and 21 deletions
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23
src/tile.rs
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@@ -40,33 +40,26 @@ impl<T> Layer<T> where T: Clone {
}
pub fn find_intersecting(&self, rect: &Rect) -> Option<Rect> {
if rect.x() + rect.width() as i32 <= 0 {
if rect.x() + rect.width() as i32 <= 0 || rect.x() >= (self.width * self.tile_width) as i32 {
return None;
}
if rect.y() + rect.height() as i32 <= 0 {
if rect.y() + rect.height() as i32 <= 0 || rect.y() >= (self.height * self.tile_height) as i32 {
return None;
}
let x1 = rect.x() / self.tile_width as i32;
let y1 = rect.y() / self.tile_height as i32;
let x2 = (rect.x() + rect.width() as i32) / self.tile_width as i32;
let y2 = (rect.y() + rect.height() as i32) / self.tile_height as i32;
if x1 < 0 || x2 >= self.width as i32 {
None
}
else if y1 < 0 || y2 >= self.height as i32 {
None
}
else {
Some(Rect::new_unwrap(x1, y1, (x2 - x1 + 1) as u32, (y2 - y1 + 1) as u32))
}
let x2 = (rect.x() + rect.width() as i32 - 1) / self.tile_width as i32;
let y2 = (rect.y() + rect.height() as i32 - 1) / self.tile_height as i32;
Some(Rect::new_unwrap(x1, y1, (x2 - x1 + 1) as u32, (y2 - y1 + 1) as u32))
}
pub fn for_each_intersecting<F: FnMut(&T, &Rect)>(&self, rect: &Rect, mut f: F) {
if let Some(intersect) = self.find_intersecting(rect) {
for y in intersect.y()..intersect.height() as i32 + 1 {
for x in intersect.x()..intersect.x() as i32 + 1 {
for y in intersect.y()..(intersect.y() + intersect.height() as i32) {
for x in intersect.x()..(intersect.x() + intersect.width() as i32) {
let position = Rect::new_unwrap(x * self.tile_width as i32, y * self.tile_height as i32, self.tile_width, self.tile_height);
f(self.get_tile(x, y).unwrap(), &position);