add linting rule to ensure textures are minimum power of 16

- if a texture isn't (e.g. its width is 1 pixel), we get a warning in the Minecraft game output (log)
- e.g. `Texture animated_java:item/black with size 1x1 limits mip level from 4 to 0`

package-scripts/linting-rules/correct-texture-dimensions.js

@@ -0,0 +1,29 @@
+const sizeOf = require('image-size');
+
+const name = 'correct-image-dimensions';
+const applicableExtensions = ['.png'];
+
+const correctImageDimensions = (file) => {
+  // Return early if file does not match any applicable extension
+  if (applicableExtensions.every((extension) => !file.endsWith(extension))) {
+    return [];
+  }
+
+  const errors = [];
+
+  const { width, height } = sizeOf(file);
+
+  if (width % 16 !== 0) {
+    errors.push(`image width must be divisible by 16 (was ${width})`);
+  }
+  if (height % 16 !== 0) {
+    errors.push(`image height must be divisible by 16 (was ${height})`);
+  }
+
+  return errors;
+};
+
+module.exports = {
+  function: correctImageDimensions,
+  name,
+};

package.json

@@ -16,6 +16,7 @@
     "cpy-cli": "5.0.0",
     "eslint": "8.56.0",
     "glob": "10.3.10",
+    "image-size": "1.1.1",
     "minimatch": "9.0.3",
     "minimist": "1.2.8",
     "nps": "5.10.0",

yarn.lock

@@ -1472,6 +1472,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"image-size@npm:1.1.1":
+  version: 1.1.1
+  resolution: "image-size@npm:1.1.1"
+  dependencies:
+    queue: 6.0.2
+  bin:
+    image-size: bin/image-size.js
+  checksum: 23b3a515dded89e7f967d52b885b430d6a5a903da954fce703130bfb6069d738d80e6588efd29acfaf5b6933424a56535aa7bf06867e4ebd0250c2ee51f19a4a
+  languageName: node
+  linkType: hard
+
 "import-fresh@npm:^3.2.1":
   version: 3.3.0
   resolution: "import-fresh@npm:3.3.0"
@@ -2142,6 +2153,7 @@ __metadata:
     cpy-cli: 5.0.0
     eslint: 8.56.0
     glob: 10.3.10
+    image-size: 1.1.1
     minimatch: 9.0.3
     minimist: 1.2.8
     nps: 5.10.0
@@ -2585,6 +2597,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"queue@npm:6.0.2":
+  version: 6.0.2
+  resolution: "queue@npm:6.0.2"
+  dependencies:
+    inherits: ~2.0.3
+  checksum: ebc23639248e4fe40a789f713c20548e513e053b3dc4924b6cb0ad741e3f264dcff948225c8737834dd4f9ec286dbc06a1a7c13858ea382d9379f4303bcc0916
+  languageName: node
+  linkType: hard
+
 "read-pkg-up@npm:^1.0.1":
   version: 1.0.1
   resolution: "read-pkg-up@npm:1.0.1"