Render some tiles

src/math.rs

@@ -1,6 +1,20 @@
+use crate::world::TilePos;
+
 pub type WorldPosScalar = i32;
 
+#[derive(Clone, Copy)]
 pub struct WorldPos {
     pub x: WorldPosScalar,
     pub y: WorldPosScalar,
 }
+
+impl WorldPos {
+    pub fn tile_pos(&self) -> TilePos {
+        TilePos {
+            x: self.x / TILE_SIZE as i32,
+            y: self.y / TILE_SIZE as i32,
+        }
+    }
+}
+
+pub const TILE_SIZE: u8 = 32;