From c5da1191095d474199cea4d6fd20c1dd3d122404 Mon Sep 17 00:00:00 2001
From: Amatsugu <khamraj@kaisei.app>
Date: Fri, 13 Mar 2026 23:19:49 -0400
Subject: [PATCH] Implement coords collection + footprint neightbors

---
 game/shared/src/coords.rs | 69 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 game/shared/src/coords.rs

diff --git a/game/shared/src/coords.rs b/game/shared/src/coords.rs
new file mode 100644
index 0000000..45c0987
--- /dev/null
+++ b/game/shared/src/coords.rs
@@ -0,0 +1,69 @@
+use bevy::prelude::*;
+use world_generation::hex_utils::HexCoord;
+
+#[derive(Default, Debug, Reflect)]
+pub struct CoordsCollection
+{
+	points: Vec<IVec2>,
+	origin: IVec2,
+	translation: IVec2,
+	rotation: i32,
+}
+
+impl CoordsCollection
+{
+	pub fn from_hex(coords: Vec<HexCoord>) -> Self
+	{
+		CoordsCollection {
+			points: coords.iter().map(|c| c.hex.xy()).collect(),
+			..default()
+		}
+	}
+
+	pub fn from_points(points: Vec<IVec2>) -> Self
+	{
+		CoordsCollection { points, ..default() }
+	}
+
+	pub fn with_translation(mut self, translation: &HexCoord) -> Self
+	{
+		self.translation = translation.hex.xy();
+		return self;
+	}
+
+	pub fn with_translation_vec(mut self, translation: IVec2) -> Self
+	{
+		self.translation = translation;
+		return self;
+	}
+
+	pub fn with_origin(mut self, orign: &HexCoord) -> Self
+	{
+		self.origin = orign.hex.xy();
+		return self;
+	}
+
+	pub fn with_rotation(mut self, rotation: i32) -> Self
+	{
+		self.rotation = rotation;
+		return self;
+	}
+
+	pub fn get_coords(&self) -> Vec<HexCoord>
+	{
+		let center = HexCoord::from_hex(self.origin);
+		return self
+			.points
+			.iter()
+			.map(|p| HexCoord::from_hex(p + self.origin).rotate_around(&center, self.rotation))
+			.collect();
+	}
+}
+
+impl Into<Vec<HexCoord>> for CoordsCollection
+{
+	fn into(self) -> Vec<HexCoord>
+	{
+		self.get_coords()
+	}
+}