1 files changed, 210 insertions, 0 deletions
diff --git a/engine/src/core/com/jme3/light/Light.java b/engine/src/core/com/jme3/light/Light.java
new file mode 100644
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+++ b/engine/src/core/com/jme3/light/Light.java
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+/*
+ * 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.light;
+
+import com.jme3.export.*;
+import com.jme3.math.ColorRGBA;
+import com.jme3.scene.Spatial;
+import java.io.IOException;
+
+/**
+ * Abstract class for representing a light source.
+ * <p>
+ * All light source types have a color.
+ */
+public abstract class Light implements Savable, Cloneable {
+
+    /**
+     * Describes the light type.
+     */
+    public enum Type {
+
+        /**
+         * Directional light
+         * 
+         * @see DirectionalLight
+         */
+        Directional(0),
+        
+        /**
+         * Point light
+         * 
+         * @see PointLight
+         */
+        Point(1),
+        
+        /**
+         * Spot light.
+         * <p>
+         * Not supported by jMonkeyEngine
+         */
+        Spot(2),
+        
+        /**
+         * Ambient light
+         * 
+         * @see AmbientLight
+         */
+        Ambient(3);
+
+        private int typeId;
+
+        Type(int type){
+            this.typeId = type;
+        }
+
+        /**
+         * Returns an index for the light type
+         * @return an index for the light type
+         */
+        public int getId(){
+            return typeId;
+        }
+    }
+
+    protected ColorRGBA color = new ColorRGBA(1f,1f,1f,1f);
+    
+    /**
+     * Used in LightList for caching the distance 
+     * to the owner spatial. Should be reset after the sorting.
+     */
+    protected transient float lastDistance = -1;
+
+    /**
+     * If light is disabled, it will not have any 
+     */
+    protected boolean enabled = true;
+
+    /** 
+     * The light name. 
+     */
+    protected String name;
+
+    /**
+     * Returns the color of the light.
+     * 
+     * @return The color of the light.
+     */
+    public ColorRGBA getColor() {
+        return color;
+    }
+
+    /**
+     * This method sets the light name.
+     * 
+     * @param name the light name
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * Return the light name.
+     * 
+     * @return the light name
+     */
+    public String getName() {
+        return name;
+    }
+
+    /*
+    public void setLastDistance(float lastDistance){
+        this.lastDistance = lastDistance;
+    }
+
+    public float getLastDistance(){
+        return lastDistance;
+    }
+    */
+
+    /**
+     * Sets the light color.
+     * 
+     * @param color the light color.
+     */
+    public void setColor(ColorRGBA color){
+        this.color.set(color);
+    }
+
+    
+    /*
+     * Returns true if the light is enabled
+     * 
+     * @return true if the light is enabled
+     * 
+     * @see Light#setEnabled(boolean)
+     */
+    /*
+    public boolean isEnabled() {
+        return enabled;
+    }
+    */
+    
+    @Override
+    public Light clone(){
+        try {
+            return (Light) super.clone();
+        } catch (CloneNotSupportedException ex) {
+            throw new AssertionError();
+        }
+    }
+
+    public void write(JmeExporter ex) throws IOException {
+        OutputCapsule oc = ex.getCapsule(this);
+        oc.write(color, "color", null);
+        oc.write(enabled, "enabled", true);
+        oc.write(name, "name", null);
+    }
+
+    public void read(JmeImporter im) throws IOException {
+        InputCapsule ic = im.getCapsule(this);
+        color = (ColorRGBA) ic.readSavable("color", null);
+        enabled = ic.readBoolean("enabled", true);
+        name = ic.readString("name", null);
+    }
+
+    /**
+     * Used internally to compute the last distance value.
+     */
+    protected abstract void computeLastDistance(Spatial owner);
+    
+    /**
+     * Returns the light type
+     * 
+     * @return the light type
+     * 
+     * @see Type
+     */
+    public abstract Type getType();
+
+}