diff options
author | Dennis Kobert <d-kobert@web.de> | 2019-05-31 16:40:00 +0200 |
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committer | Dennis Kobert <d-kobert@web.de> | 2019-05-31 16:40:00 +0200 |
commit | 4cdb0d88a065df2456b3e12389836eebc9b2fa4a (patch) | |
tree | 1633fdda3fbad79a48952e8dab50181f4c00ef3c /game_server/src/collide.rs | |
parent | 79db730d4e42ce592af753059422410979ff26b0 (diff) |
Fix issues in Collide
Diffstat (limited to 'game_server/src/collide.rs')
-rw-r--r-- | game_server/src/collide.rs | 63 |
1 files changed, 50 insertions, 13 deletions
diff --git a/game_server/src/collide.rs b/game_server/src/collide.rs index 4169787..4217e7f 100644 --- a/game_server/src/collide.rs +++ b/game_server/src/collide.rs @@ -1,36 +1,73 @@ +use crate::maths::{Vec2, Box, RBox}; + pub trait Collide<Rhs> { fn collides(&self, other: &Rhs) -> bool; } impl Collide<Vec2> for Vec2 { - fn collides(self, other: Self) { + fn collides(&self, other: &Self) -> bool { self == other } } impl Collide<Vec2> for Box { - fn collides(self, other: Vec2) { - self.pos < other < self.pos + self.size + fn collides(&self, other: &Vec2) -> bool { + self.pos < other && other < self.pos + self.size } } impl Collide<Box> for Box { - fn collides(self, other: Self) { - self.collides(other.pos) - || other.collides(self.pos) + fn collides(&self, other: &Self) -> bool { + self.collides(other.pos) + || self.collides(other.pos + Vec2{x: other.x, y: 0}) + || self.collides(other.pos + Vec2{x: 0, y: other.y}) + || self.collides(other.pos + other.size) + + || other.collides(self.pos) + || other.collides(self.pos + Vec2{x: self.x, y: 0}) + || other.collides(self.pos + Vec2{x: 0, y: self.y}) + || other.collides(self.pos + self.size) } } impl Collide<Vec2> for RBox { - fn collides(self, other: Vec2) { - - || other.pos < self.pos < other.pos + other.size + fn collides(&self, other: &Vec2) -> bool { + let dx = self.size.x; + let dy = self.size.y; + let len = f32::sqrt(dx*dx+dy*dy); + dx /= len; + dy /= len; + + let dax = other.x - self.p1.x; + let day = other.y - self.p1.y; + + let dot = dax * dx + day * dy; + let px = self.pos.x + dx * dot; + let py = self.pos.y + dy * dot; + + if !(self.pos < px && px < self.pos + self.size) { + return false; + } + + let ddx = other.x-px; + let ddy = other.y-py; + let manhattenDistance = ddx + ddy; + + manhattenDistance < self.w } } -impl Collide<Box> for Box { - fn collides(self, other: Self) { - self.pos < other.pos < self.pos + self.size - || other.pos < self.pos < other.pos + other.size +impl Collide<Box> for RBox { + fn collides(&self, other: &Box) -> bool { + self.collides(other.pos) + || self.collides(other.pos + Vec2{x: other.x, y: 0}) + || self.collides(other.pos + Vec2{x: 0, y: other.y}) + || self.collides(other.pos + other.size) + + || other.collides(self.pos) + || other.collides(self.pos + Vec2{x: self.x, y: 0}) + || other.collides(self.pos + Vec2{x: 0, y: self.y}) + || other.collides(self.pos + self.size) + } } |