Add CropConverter

Added CropConverter to allow percentage based cropping on output images

Author: rtm516

src/converter/CropConverter.mjs

@@ -0,0 +1,44 @@
+import {AbstractConverter} from "./AbstractConverter.mjs";
+
+/**
+ * Class CropConverter
+ */
+class CropConverter extends AbstractConverter {
+    /**
+     * @inheritDoc
+     */
+    async convert() {
+        const [from, width, height] = this.data;
+
+        if (!await this.output.exists(from)) {
+            return [];
+        }
+
+        const newWidth = image.getWidth() * width
+        const newHeight = image.getHeight() * height
+
+        this.log.log(`Crop ${from} to ${newWidth}x${newHeight}`);
+
+        const image = await this.readImage(from);
+
+        image.crop(0, 0, newWidth, newHeight)
+        
+        await this.writeImage(from, image);
+
+        return [];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    static get DEFAULT_CONVERTER_DATA() {
+        return [
+            // Conduit
+            ["textures/blocks/conduit_base.png", 0.75, 0.75],
+            ["textures/blocks/conduit_closed.png", 0.5, 0.5],
+            ["textures/blocks/conduit_open.png", 0.5, 0.5],
+        ];
+    }
+}
+
+export {CropConverter};

src/converter/converters.mjs

@@ -11,6 +11,7 @@ import {ChestNormalConverter} from "./ChestNormalConverter.mjs";
 import {ChestSideConverter} from "./ChestSideConverter.mjs";
 import {ColorizeOverlayConverter} from "./ColorizeOverlayConverter.mjs";
 import {CopyConverter} from "./CopyConverter.mjs";
+import {CropConverter} from "./CropConverter.mjs";
 import {DeleteConverter} from "./DeleteConverter.mjs";
 import {DespriteConverter} from "./DespriteConverter.mjs";
 import {DespriteExperimentalConverter} from "./DespriteExperimentalConverter.mjs";
@@ -91,6 +92,7 @@ const converters = [
     EnchantedItemGlintConverter,
     PngToTgaConverter,
     CopyConverter,
+    CropConverter,
     DeleteConverter
 ].reduce((converters, converter) => {
     converters.push(...converter.getDefaultConverters());