Merge pull request #306 from mbenson/light-ctors

More convenient light constructors

jme3-core/src/main/java/com/jme3/light/AmbientLight.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2012, 2015 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,7 @@
 package com.jme3.light;
 
 import com.jme3.bounding.BoundingBox;
+import com.jme3.math.ColorRGBA;
 import com.jme3.math.Vector3f;
 import com.jme3.renderer.Camera;
 import com.jme3.scene.Spatial;
@@ -49,6 +50,13 @@ import com.jme3.util.TempVars;
  */
 public class AmbientLight extends Light {
 
+    public AmbientLight() {
+    }
+
+    public AmbientLight(ColorRGBA color) {
+        super(color);
+    }
+
     @Override
     public boolean intersectsBox(BoundingBox box, TempVars vars) {
         return true;

jme3-core/src/main/java/com/jme3/light/DirectionalLight.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2012, 2015 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,6 +36,7 @@ import com.jme3.export.InputCapsule;
 import com.jme3.export.JmeExporter;
 import com.jme3.export.JmeImporter;
 import com.jme3.export.OutputCapsule;
+import com.jme3.math.ColorRGBA;
 import com.jme3.math.Vector3f;
 import com.jme3.renderer.Camera;
 import com.jme3.scene.Spatial;
@@ -53,6 +54,18 @@ public class DirectionalLight extends Light {
 
     protected Vector3f direction = new Vector3f(0f, -1f, 0f);
 
+    public DirectionalLight() {
+    }
+
+    public DirectionalLight(Vector3f direction) {
+        setDirection(direction);
+    }
+
+    public DirectionalLight(Vector3f direction, ColorRGBA color) {
+        super(color);
+        setDirection(direction);
+    }
+
     @Override
     public void computeLastDistance(Spatial owner) {
         lastDistance = 0; // directional lights are always closest to their owner

jme3-core/src/main/java/com/jme3/light/Light.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2012, 2015 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -94,7 +94,7 @@ public abstract class Light implements Savable, Cloneable {
         }
     }
 
-    protected ColorRGBA color = new ColorRGBA(1f,1f,1f,1f);
+    protected ColorRGBA color = new ColorRGBA(ColorRGBA.White);
     
     /**
      * Used in LightList for caching the distance 
@@ -115,6 +115,13 @@ public abstract class Light implements Savable, Cloneable {
     boolean frustumCheckNeeded = true;
     boolean intersectsFrustum  = false;
 
+    protected Light() {
+    }
+
+    protected Light(ColorRGBA color) {
+        setColor(color);
+    }
+
     /**
      * Returns the color of the light.
      * 

jme3-core/src/main/java/com/jme3/light/PointLight.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2012, 2015 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,6 +38,7 @@ import com.jme3.export.InputCapsule;
 import com.jme3.export.JmeExporter;
 import com.jme3.export.JmeImporter;
 import com.jme3.export.OutputCapsule;
+import com.jme3.math.ColorRGBA;
 import com.jme3.math.FastMath;
 import com.jme3.math.Plane;
 import com.jme3.math.Vector3f;
@@ -62,6 +63,18 @@ public class PointLight extends Light {
     protected float radius = 0;
     protected float invRadius = 0;
 
+    public PointLight() {
+    }
+
+    public PointLight(Vector3f position) {
+        setPosition(position);
+    }
+
+    public PointLight(Vector3f position, ColorRGBA color) {
+        super(color);
+        setPosition(position);
+    }
+
     @Override
     public void computeLastDistance(Spatial owner) {
         if (owner.getWorldBound() != null) {

jme3-core/src/main/java/com/jme3/light/SpotLight.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2012 jMonkeyEngine
+ * Copyright (c) 2009-2012, 2015 jMonkeyEngine
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,6 +34,7 @@ package com.jme3.light;
 import com.jme3.bounding.BoundingBox;
 import com.jme3.bounding.BoundingVolume;
 import com.jme3.export.*;
+import com.jme3.math.ColorRGBA;
 import com.jme3.math.FastMath;
 import com.jme3.math.Plane;
 import com.jme3.math.Vector3f;
@@ -44,27 +45,27 @@ import java.io.IOException;
 
 /**
  * Represents a spot light.
- * A spot light emmit a cone of light from a position and in a direction.
- * It can be used to fake torch lights or car's lights.
+ * A spot light emits a cone of light from a position and in a direction.
+ * It can be used to fake torch lights or cars' lights.
  * <p>
  * In addition to a position and a direction, spot lights also have a range which 
  * can be used to attenuate the influence of the light depending on the 
- * distance between the light and the effected object.
+ * distance between the light and the affected object.
  * Also the angle of the cone can be tweaked by changing the spot inner angle and the spot outer angle.
- * the spot inner angle determin the cone of light where light has full influence.
- * the spot outer angle determin the cone global cone of light of the spot light.
- * the light intensity slowly decrease between the inner cone and the outer cone.
+ * the spot inner angle determines the cone of light where light has full influence.
+ * the spot outer angle determines the cone global cone of light of the spot light.
+ * the light intensity slowly decreases between the inner cone and the outer cone.
  *  @author Nehon
  */
 public class SpotLight extends Light {
 
     protected Vector3f position = new Vector3f();
-    protected Vector3f direction = new Vector3f(0,-1,0);
+    protected Vector3f direction = new Vector3f(0, -1, 0);
     protected float spotInnerAngle = FastMath.QUARTER_PI / 8;
     protected float spotOuterAngle = FastMath.QUARTER_PI / 6;
     protected float spotRange = 100;
     protected float invSpotRange = 1f / 100;
-    protected float packedAngleCos=0;
+    protected float packedAngleCos = 0;
     
     protected float outerAngleCosSqr, outerAngleSinSqr;
     protected float outerAngleSinRcp, outerAngleSin, outerAngleCos;
@@ -74,6 +75,19 @@ public class SpotLight extends Light {
         computeAngleParameters();
     }
 
+    public SpotLight(Vector3f position, Vector3f direction) {
+        this();
+        setPosition(position);
+        setDirection(direction);
+    }
+
+    public SpotLight(Vector3f position, Vector3f direction, ColorRGBA color) {
+        super(color);
+        computeAngleParameters();
+        setPosition(position);
+        setDirection(direction);
+    }
+
     private void computeAngleParameters() {
         float innerCos = FastMath.cos(spotInnerAngle);
         outerAngleCos = FastMath.cos(spotOuterAngle);