1 files changed, 112 insertions, 0 deletions
diff --git a/engine/src/core/com/jme3/scene/control/AbstractControl.java b/engine/src/core/com/jme3/scene/control/AbstractControl.java
new file mode 100644
index 0000000..2887ec9
--- /dev/null
+++ b/engine/src/core/com/jme3/scene/control/AbstractControl.java
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2009-2010 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.jme3.scene.control;
+
+import com.jme3.export.InputCapsule;
+import com.jme3.export.JmeExporter;
+import com.jme3.export.JmeImporter;
+import com.jme3.export.OutputCapsule;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.ViewPort;
+import com.jme3.scene.Spatial;
+import java.io.IOException;
+
+/**
+ * An abstract implementation of the Control interface.
+ *
+ * @author Kirill Vainer
+ */
+public abstract class AbstractControl implements Control {
+
+    protected boolean enabled = true;
+    protected Spatial spatial;
+
+    public AbstractControl(){
+    }
+
+    public void setSpatial(Spatial spatial) {
+        if (this.spatial != null && spatial != null) {
+            throw new IllegalStateException("This control has already been added to a Spatial");
+        }   
+        this.spatial = spatial;
+    }
+    
+    public Spatial getSpatial(){
+        return spatial;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    /**
+     * To be implemented in subclass.
+     */
+    protected abstract void controlUpdate(float tpf);
+
+    /**
+     * To be implemented in subclass.
+     */
+    protected abstract void controlRender(RenderManager rm, ViewPort vp);
+
+    public void update(float tpf) {
+        if (!enabled)
+            return;
+
+        controlUpdate(tpf);
+    }
+
+    public void render(RenderManager rm, ViewPort vp) {
+        if (!enabled)
+            return;
+
+        controlRender(rm, vp);
+    }
+
+    public void write(JmeExporter ex) throws IOException {
+        OutputCapsule oc = ex.getCapsule(this);
+        oc.write(enabled, "enabled", true);
+        oc.write(spatial, "spatial", null);
+    }
+
+    public void read(JmeImporter im) throws IOException {
+        InputCapsule ic = im.getCapsule(this);
+        enabled = ic.readBoolean("enabled", true);
+        spatial = (Spatial) ic.readSavable("spatial", null);
+    }
+
+}