feat: workspace!!!

hexagon_launcher/src/hex.rs

@@ -0,0 +1,44 @@
+use crate::{APP_SIZE, PADDING};
+use tween::TweenTime;
+
+#[derive(Clone)]
+pub struct Hex {
+	q: isize,
+	r: isize,
+	s: isize,
+}
+
+pub const HEX_CENTER: Hex = Hex { q: 0, r: 0, s: 0 };
+pub const HEX_DIRECTION_VECTORS: [Hex; 6] = [
+	Hex { q: 1, r: 0, s: -1 },
+	Hex { q: 1, r: -1, s: 0 },
+	Hex { q: 0, r: -1, s: 1 },
+	Hex { q: -1, r: 0, s: 1 },
+	Hex { q: -1, r: 1, s: 0 },
+	Hex { q: 0, r: 1, s: -1 },
+];
+
+impl Hex {
+	pub fn new(q: isize, r: isize, s: isize) -> Self {
+		Hex { q, r, s }
+	}
+
+	pub fn get_coords(&self) -> [f32; 3] {
+		let x = 3.0 / 2.0 * (APP_SIZE + PADDING) / 2.0 * (-self.q - self.s).to_f32();
+		let y = 3.0_f32.sqrt() * (APP_SIZE + PADDING) / 2.0
+			* ((-self.q - self.s).to_f32() / 2.0 + self.s.to_f32());
+		[x, y, 0.0]
+	}
+
+	pub fn add(self, vec: &Hex) -> Self {
+		Hex::new(self.q + vec.q, self.r + vec.r, self.s + vec.s)
+	}
+
+	pub fn neighbor(self, direction: usize) -> Self {
+		self.add(&HEX_DIRECTION_VECTORS[direction])
+	}
+
+	pub fn scale(self, factor: isize) -> Self {
+		Hex::new(self.q * factor, self.r * factor, self.s * factor)
+	}
+}