make texture size table case insensitive

Cargo.toml

@@ -16,6 +16,7 @@ approx = "0.3"
 bitflags = "1"
 bitvec = "0.17.4"
 byteorder = "1.3"
+case_insensitive_hashmap = "1.0.0"
 cpal = "0.12.1"
 directories = "2"
 gfx = "0.18"

src/macros.rs

@@ -620,3 +620,22 @@ macro_rules! __bitfield_debug_assert {
         debug_assert!($e)
     };
 }
+
+
+#[macro_export(local_inner_macros)]
+macro_rules! case_insensitive_hashmap {
+    (@single $($x:tt)*) => (());
+    (@count $($rest:expr),*) => (<[()]>::len(&[$(case_insensitive_hashmap!(@single $rest)),*]));
+
+    ($($key:expr => $value:expr,)+) => { case_insensitive_hashmap!($($key => $value),+) };
+    ($($key:expr => $value:expr),*) => {
+        {
+            let _cap = case_insensitive_hashmap!(@count $($key),*);
+            let mut _map = ::case_insensitive_hashmap::CaseInsensitiveHashMap::with_capacity(_cap);
+            $(
+                let _ = _map.insert($key, $value);
+            )*
+            _map
+        }
+    };
+}

src/texture_set.rs

@@ -162,7 +162,7 @@ impl TextureSet {
         let dim = (size.w as usize, size.h as usize);
         let orig_dimensions = constants.tex_sizes.get(name).unwrap_or_else(|| &dim);
         let scale_x = orig_dimensions.0 as f32 / size.w;
-        let scale_y = orig_dimensions.1 as f32 / size.h;
+        let scale_y = orig_dimensions.0 as f32 / size.w;
         let width = (size.w * scale_x) as usize;
         let height = (size.h * scale_y) as usize;