Merge pull request #149 from UnBuiltTree/icon-remake

Icon Remake

src/core/game/GameMap.ts

@@ -321,7 +321,16 @@ export function euclDistFN(
   root: TileRef,
   dist: number,
 ): (gm: GameMap, tile: TileRef) => boolean {
-  return (gm: GameMap, n: TileRef) => gm.euclideanDist(root, n) <= dist;
+  return (gm: GameMap, n: TileRef) => {
+    // shifts the root tile’s coordinates by -0.5 so that its “center”
+    // center becomes the corner of four pixels rather than the middle of one pixel.
+    // just makes things based off even pixels instead of odd. Used to use 9x9 icons now 10x10 icons etc...
+    const rootX = gm.x(root) - 0.5;
+    const rootY = gm.y(root) - 0.5;
+    const dx = gm.x(n) - rootX;
+    const dy = gm.y(n) - rootY;
+    return Math.sqrt(dx * dx + dy * dy) <= dist;
+  };
 }
 
 export function manhattanDistFN(