Fixes #38 - flip the y on amethyst tile render

amethyst · Jan 4, 2020 · d45c00d · d45c00d
1 parent a474dd1
commit d45c00d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/hal/amethyst_be/mainloop.rs b/src/hal/amethyst_be/mainloop.rs
@@ -98,7 +98,8 @@ impl SimpleState for RltkGemBridge {
                     .iter()
                     .for_each(|coord| {
                         if let Some(fg) = map.get_mut(&coord) {
-                            let idx = ((coord.y * size.0) + coord.x) as usize;
+                            let flipped_y = (size.1-1) - coord.y;
+                            let idx = ((flipped_y * size.0) + coord.x) as usize;
                             if idx < concrete.tiles.len() {
                                 let tile = &concrete.tiles[idx];
                                 fg.glyph = tile.glyph as usize;