Add rotate color sampler

common/addons/library-image/src/main/java/com/dfsek/terra/addons/image/ImageLibraryAddon.java

@@ -5,6 +5,8 @@ import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
 import java.util.function.Supplier;
 
 import com.dfsek.terra.addons.image.config.ImageLoader;
+import com.dfsek.terra.addons.image.config.sampler.RotateColorSamplerTemplate;
+import com.dfsek.terra.addons.image.config.sampler.ConstantColorSamplerTemplate;
 import com.dfsek.terra.addons.image.config.sampler.SingleColorSamplerTemplate;
 import com.dfsek.terra.addons.image.config.sampler.TileColorSamplerTemplate;
 import com.dfsek.terra.addons.image.image.Image;
@@ -44,6 +46,8 @@ public class ImageLibraryAddon implements AddonInitializer {
                             COLOR_PICKER_REGISTRY_KEY);
                     colorSamplerRegistry.register(addon.key("SINGLE"), SingleColorSamplerTemplate::new);
                     colorSamplerRegistry.register(addon.key("TILED"), TileColorSamplerTemplate::new);
+                    colorSamplerRegistry.register(addon.key("COLOR"), ConstantColorSamplerTemplate::new);
+                    colorSamplerRegistry.register(addon.key("ROTATE"), RotateColorSamplerTemplate::new);
         });
     }
 }

common/addons/library-image/src/main/java/com/dfsek/terra/addons/image/config/sampler/ConstantColorSamplerTemplate.java

@@ -0,0 +1,18 @@
+package com.dfsek.terra.addons.image.config.sampler;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+
+import com.dfsek.terra.addons.image.sampler.ColorSampler;
+
+
+public class ConstantColorSamplerTemplate implements ObjectTemplate<ColorSampler> {
+    
+    @Value("color")
+    private int color;
+    
+    @Override
+    public ColorSampler get() {
+        return ((x, z) -> color);
+    }
+}

common/addons/library-image/src/main/java/com/dfsek/terra/addons/image/config/sampler/RotateColorSamplerTemplate.java

@@ -0,0 +1,23 @@
+package com.dfsek.terra.addons.image.config.sampler;
+
+import com.dfsek.tectonic.api.config.template.annotations.Value;
+import com.dfsek.tectonic.api.config.template.object.ObjectTemplate;
+import net.jafama.FastMath;
+
+import com.dfsek.terra.addons.image.sampler.ColorSampler;
+import com.dfsek.terra.addons.image.sampler.RotateColorSampler;
+
+
+public class RotateColorSamplerTemplate implements ObjectTemplate<ColorSampler> {
+    
+    @Value("image")
+    private ColorSampler sampler;
+    
+    @Value("angle")
+    private double angle;
+    
+    @Override
+    public ColorSampler get() {
+        return new RotateColorSampler(sampler, FastMath.toRadians(angle));
+    }
+}

common/addons/library-image/src/main/java/com/dfsek/terra/addons/image/sampler/RotateColorSampler.java

@@ -0,0 +1,24 @@
+package com.dfsek.terra.addons.image.sampler;
+
+import net.jafama.FastMath;
+
+
+public class RotateColorSampler implements ColorSampler {
+    
+    private final ColorSampler sampler;
+    
+    private final double radians;
+    
+    public RotateColorSampler(ColorSampler sampler, double radians) {
+        this.sampler = sampler;
+        this.radians = radians;
+    }
+    
+    @Override
+    public Integer apply(int x, int z) {
+        return sampler.apply(
+            (int) (x * FastMath.cos(radians) - z * FastMath.sin(radians)),
+            (int) (z * FastMath.cos(radians) + x * FastMath.sin(radians))
+        );
+    }
+}