organization and buidings db

game/buildings/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "buildings"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+bevy = "0.13.2"
+world_generation = {path = "../../engine/world_generation"}
+
+[features]
+tracing = []

game/buildings/src/buildings_database.rs

@@ -0,0 +1,65 @@
+use bevy::prelude::*;
+use world_generation::hex_utils::HexCoord;
+
+#[derive(Resource)]
+pub struct BuildingDatabase {
+	pub chunks: Vec<BuildingChunk>,
+}
+
+impl BuildingDatabase {
+	pub fn new(size: UVec2) -> Self {
+		let mut db = BuildingDatabase {
+			chunks: Vec::with_capacity(size.length_squared() as usize),
+		};
+
+		for y in 0..size.y as i32 {
+			for x in 0..size.x as i32 {
+				let offset = IVec2::new(x, y);
+				let index = (x + y * size.x as i32) as usize;
+				db.chunks.push(BuildingChunk::new(offset, index));
+			}
+		}
+
+		return db;
+	}
+
+	pub fn get_buildings_in_range(&self, coord: &HexCoord, radius: usize) -> Option<Vec<&BuildingEntry>> {
+		assert!(radius != 0, "Radius cannot be zero");
+		todo!();
+	}
+
+	pub fn get_building(&self, coord: &HexCoord) -> Option<&BuildingEntry> {
+		todo!();
+	}
+}
+
+pub struct BuildingChunk {
+	pub entries: Vec<BuildingChunk>,
+	pub index: usize,
+	pub offset: IVec2,
+}
+
+impl BuildingChunk {
+	pub fn new(offset: IVec2, index: usize) -> Self {
+		return BuildingChunk {
+			entries: Vec::new(),
+			index,
+			offset,
+		};
+	}
+
+	pub fn get_building(&self, coord: &HexCoord) -> Option<&BuildingEntry> {
+		todo!();
+	}
+}
+
+pub struct BuildingEntry {
+	pub coord: HexCoord,
+	pub entity: Entity,
+}
+
+impl BuildingEntry {
+	pub fn new(coord: HexCoord, entity: Entity) -> Self {
+		return BuildingEntry { coord, entity };
+	}
+}

game/buildings/src/lib.rs

@@ -0,0 +1 @@
+pub mod buildings_database;