Implement coords collection + footprint neightbors

game/buildings/src/footprint.rs

@@ -1,32 +1,39 @@
 use bevy::math::{IVec2, Vec3Swizzles};
 use serde::{Deserialize, Serialize};
+use shared::coords::CoordsCollection;
 use world_generation::hex_utils::HexCoord;
 
 #[derive(Serialize, Deserialize, Debug)]
-pub struct BuildingFootprint {
+pub struct BuildingFootprint
+{
 	pub footprint: Vec<IVec2>,
 }
 
-impl BuildingFootprint {
-	pub fn get_footprint(&self, center: &HexCoord) -> Vec<HexCoord> {
-		let c = center.hex.xy();
-		return self.footprint.iter().map(|p| HexCoord::from_hex(*p + c)).collect();
+impl BuildingFootprint
+{
+	pub fn get_footprint(&self, position: &HexCoord) -> CoordsCollection
+	{
+		CoordsCollection::from_points(self.footprint.clone()).with_translation(position)
 	}
 
-	pub fn get_footprint_rotated(&self, center: &HexCoord, rotation: i32) -> Vec<HexCoord> {
-		let c = center.hex.xy();
-		return self
+	pub fn get_neighbors(&self, position: &HexCoord) -> CoordsCollection
+	{
+		let n_points: Vec<IVec2> = self
 			.footprint
 			.iter()
-			.map(|p| HexCoord::from_hex(*p + c).rotate_around(center, rotation))
+			.flat_map(|p| HexCoord::from_hex(*p).get_neighbors())
+			.map(|c| c.hex.xy())
+			.filter(|p| !self.footprint.contains(p))
 			.collect();
-	}
-
-	pub fn get_neighbors(&self, center: &HexCoord) -> Vec<HexCoord> {
-		todo!()
-	}
-
-	pub fn get_neighbors_rotated(&self, center: &HexCoord, rotation: i32) -> Vec<HexCoord> {
-		todo!();
+		let mut out_points: Vec<IVec2> = Vec::with_capacity(n_points.len());
+		for p in n_points
+		{
+			if out_points.contains(&p)
+			{
+				continue;
+			}
+			out_points.push(p);
+		}
+		return CoordsCollection::from_points(out_points).with_translation(position);
 	}
 }