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-rw-r--r--2019-worms/src/geometry/vec.rs62
1 files changed, 62 insertions, 0 deletions
diff --git a/2019-worms/src/geometry/vec.rs b/2019-worms/src/geometry/vec.rs
new file mode 100644
index 0000000..375a0f9
--- /dev/null
+++ b/2019-worms/src/geometry/vec.rs
@@ -0,0 +1,62 @@
+use std::ops::*;
+
+#[derive(Debug, Default, Clone, Copy, Hash, PartialEq, Eq)]
+pub struct Vec2d {
+ pub x: i8,
+ pub y: i8,
+}
+
+impl Vec2d {
+ pub const fn new(x: i8, y: i8) -> Vec2d {
+ Vec2d { x, y }
+ }
+ pub fn magnitude_squared(&self) -> i8 {
+ self.x
+ .saturating_pow(2)
+ .saturating_add(self.y.saturating_pow(2))
+ }
+}
+
+impl Add for Vec2d {
+ type Output = Self;
+
+ fn add(self, other: Self) -> Self {
+ Vec2d {
+ x: self.x.saturating_add(other.x),
+ y: self.y.saturating_add(other.y),
+ }
+ }
+}
+
+impl Sub for Vec2d {
+ type Output = Self;
+
+ fn sub(self, other: Self) -> Self {
+ Vec2d {
+ x: self.x.saturating_sub(other.x),
+ y: self.y.saturating_sub(other.y),
+ }
+ }
+}
+
+impl Mul<i8> for Vec2d {
+ type Output = Self;
+
+ fn mul(self, other: i8) -> Self {
+ Vec2d {
+ x: self.x.saturating_mul(other),
+ y: self.y.saturating_mul(other),
+ }
+ }
+}
+
+impl Neg for Vec2d {
+ type Output = Self;
+
+ fn neg(self) -> Self {
+ Vec2d {
+ x: -self.x,
+ y: -self.y,
+ }
+ }
+}