Initial 1.7 commit

codechicken/lib/render/uv/MultiIconTransformation.java

@@ -0,0 +1,24 @@
+package codechicken.lib.render.uv;
+
+import codechicken.lib.vec.IrreversibleTransformationException;
+import net.minecraft.util.IIcon;
+
+public class MultiIconTransformation extends UVTransformation {
+    public IIcon[] icons;
+
+    public MultiIconTransformation(IIcon... icons) {
+        this.icons = icons;
+    }
+
+    @Override
+    public void apply(UV uv) {
+        IIcon icon = icons[uv.tex % icons.length];
+        uv.u = icon.getInterpolatedU(uv.u * 16);
+        uv.v = icon.getInterpolatedV(uv.v * 16);
+    }
+
+    @Override
+    public UVTransformation inverse() {
+        throw new IrreversibleTransformationException(this);
+    }
+}