feat: implement interaction features (eye tracking, hit detection, motion callbacks)

Author: Eatgrapes

binding/src/main/java/dev/eatgrapes/live2d/CubismUserModel.java

@@ -1,83 +1,72 @@
 package dev.eatgrapes.live2d;
 
+import java.util.function.Consumer;
+
 public class CubismUserModel extends Native {
-    
+    private Consumer<String> motionFinishedCallback;
+
     public CubismUserModel() {
         super(createNative());
     }
 
     private static native long createNative();
 
-    public void loadModel(byte[] buffer) {
-        loadModelNative(_ptr, buffer);
-    }
-
+    public void loadModel(byte[] buffer) { loadModelNative(_ptr, buffer); }
     private static native void loadModelNative(long ptr, byte[] buffer);
 
-    public void loadPhysics(byte[] buffer) {
-        loadPhysicsNative(_ptr, buffer);
-    }
-
+    public void loadPhysics(byte[] buffer) { loadPhysicsNative(_ptr, buffer); }
     private static native void loadPhysicsNative(long ptr, byte[] buffer);
 
-    public void loadPose(byte[] buffer) {
-        loadPoseNative(_ptr, buffer);
-    }
-
+    public void loadPose(byte[] buffer) { loadPoseNative(_ptr, buffer); }
     private static native void loadPoseNative(long ptr, byte[] buffer);
 
-    public void loadExpression(byte[] buffer, String name) {
-        loadExpressionNative(_ptr, buffer, name);
-    }
-
+    public void loadExpression(byte[] buffer, String name) { loadExpressionNative(_ptr, buffer, name); }
     private static native void loadExpressionNative(long ptr, byte[] buffer, String name);
 
-    public void createRenderer() {
-        createRendererNative(_ptr);
-    }
-
+    public void createRenderer() { createRendererNative(_ptr); }
     private static native void createRendererNative(long ptr);
 
-    public void update(float deltaTime) {
-        updateNative(_ptr, deltaTime);
-    }
+    public void registerTexture(int index, int textureId) { registerTextureNative(_ptr, index, textureId); }
+    private static native void registerTextureNative(long ptr, int index, int textureId);
 
-    private static native void updateNative(long ptr, float deltaTime);
+    // Eye Tracking / Dragging
+    public void setDragging(float x, float y) { setDraggingNative(_ptr, x, y); }
+    private static native void setDraggingNative(long ptr, float x, float y);
 
-    public void registerTexture(int index, int textureId) {
-        registerTextureNative(_ptr, index, textureId);
-    }
+    // Hit Detection
+    public boolean isHit(String drawableId, float x, float y) { return isHitNative(_ptr, drawableId, x, y); }
+    private static native boolean isHitNative(long ptr, String drawableId, float x, float y);
 
-    private static native void registerTextureNative(long ptr, int index, int textureId);
+    // Motion Playback
+    public void startMotion(byte[] buffer, int priority, Consumer<String> onFinished) {
+        this.motionFinishedCallback = onFinished;
+        startMotionNative(_ptr, buffer, priority);
+    }
+    private static native void startMotionNative(long ptr, byte[] buffer, int priority);
 
-    public void setParameterValue(String id, float value) {
-        setParameterValueNative(_ptr, id, value);
+    // Called from JNI
+    private void onMotionFinished(String name) {
+        if (motionFinishedCallback != null) {
+            motionFinishedCallback.accept(name);
+        }
     }
 
-    private static native void setParameterValueNative(long ptr, String id, float value);
+    public void update(float deltaTime) { updateNative(_ptr, deltaTime); }
+    private static native void updateNative(long ptr, float deltaTime);
 
-    public float getCanvasWidth() {
-        return getCanvasWidthNative(_ptr);
-    }
+    public void setParameterValue(String id, float value) { setParameterValueNative(_ptr, id, value); }
+    private static native void setParameterValueNative(long ptr, String id, float value);
 
+    public float getCanvasWidth() { return getCanvasWidthNative(_ptr); }
     private static native float getCanvasWidthNative(long ptr);
 
-    public float getCanvasHeight() {
-        return getCanvasHeightNative(_ptr);
-    }
-
+    public float getCanvasHeight() { return getCanvasHeightNative(_ptr); }
     private static native float getCanvasHeightNative(long ptr);
 
-    public void draw(float[] mvpMatrix) {
-        drawNative(_ptr, mvpMatrix);
-    }
-
+    public void draw(float[] mvpMatrix) { drawNative(_ptr, mvpMatrix); }
     private static native void drawNative(long ptr, float[] mvpMatrix);
 
     @Override
-    public void close() {
-        deleteNative(_ptr);
-    }
-
+    public void close() { deleteNative(_ptr); }
     private static native void deleteNative(long ptr);
-}
+}