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Added two new methods to convert ColorRGBA to Vector3f and Vector4f. These should be very useful when using shaders.

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git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@8155 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
3.0
dan..om 14 years ago
parent 7042720106
commit 03c22a1dee
1 changed files with 141 additions and 118 deletions
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  1. 161
      engine/src/core/com/jme3/math/ColorRGBA.java

161
engine/src/core/com/jme3/math/ColorRGBA.java
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@ -1,13 +1,11 @@
/* /*
* Copyright (c) 2009-2010 jMonkeyEngine * Copyright (c) 2009-2010 jMonkeyEngine All rights reserved.
* All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are * modification, are permitted provided that the following conditions are met:
* met: * *
* * * Redistributions of source code must retain the above copyright notice,
* * Redistributions of source code must retain the above copyright * this list of conditions and the following disclaimer.
* notice, this list of conditions and the following disclaimer.
* *
* * Redistributions in binary form must reproduce the above copyright * * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the * notice, this list of conditions and the following disclaimer in the
@ -17,19 +15,18 @@
* may be used to endorse or promote products derived from this software * may be used to endorse or promote products derived from this software
* without specific prior written permission. * without specific prior written permission.
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * POSSIBILITY OF SUCH DAMAGE.
*/ */
package com.jme3.math; package com.jme3.math;
import com.jme3.export.InputCapsule; import com.jme3.export.InputCapsule;
@ -39,25 +36,24 @@ import com.jme3.export.OutputCapsule;
import com.jme3.export.Savable; import com.jme3.export.Savable;
import java.io.IOException; import java.io.IOException;
/** /**
* <code>ColorRGBA</code> defines a color made from a collection of * <code>ColorRGBA</code> defines a color made from a collection of red, green
* red, green and blue values. An alpha value determines is transparency. * and blue values. An alpha value determines is transparency. All values must
* All values must be between 0 and 1. If any value is set higher or lower * be between 0 and 1. If any value is set higher or lower than these
* than these constraints they are clamped to the min or max. That is, if * constraints they are clamped to the min or max. That is, if a value smaller
* a value smaller than zero is set the value clamps to zero. If a value * than zero is set the value clamps to zero. If a value higher than 1 is
* higher than 1 is passed, that value is clamped to 1. However, because the * passed, that value is clamped to 1. However, because the attributes r, g, b,
* attributes r, g, b, a are public for efficiency reasons, they can be * a are public for efficiency reasons, they can be directly modified with
* directly modified with invalid values. The client should take care when * invalid values. The client should take care when directly addressing the
* directly addressing the values. A call to clamp will assure that the values * values. A call to clamp will assure that the values are within the
* are within the constraints. * constraints.
*
* @author Mark Powell * @author Mark Powell
* @version $Id: ColorRGBA.java,v 1.29 2007/09/09 18:25:14 irrisor Exp $ * @version $Id: ColorRGBA.java,v 1.29 2007/09/09 18:25:14 irrisor Exp $
*/ */
public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable { public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable {
static final long serialVersionUID = 1; static final long serialVersionUID = 1;
/** /**
* the color black (0,0,0). * the color black (0,0,0).
*/ */
@ -105,21 +101,19 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
/** /**
* the color orange (251/255, 130/255,0). * the color orange (251/255, 130/255,0).
*/ */
public static final ColorRGBA Orange = new ColorRGBA(251f/255f, 130f/255f, 0f, 1f); public static final ColorRGBA Orange = new ColorRGBA(251f / 255f, 130f / 255f, 0f, 1f);
/** /**
* the color brown (65/255, 40/255, 25/255). * the color brown (65/255, 40/255, 25/255).
*/ */
public static final ColorRGBA Brown = new ColorRGBA(65f/255f, 40f/255f, 25f/255f, 1f); public static final ColorRGBA Brown = new ColorRGBA(65f / 255f, 40f / 255f, 25f / 255f, 1f);
/** /**
* the color pink (1, 0.68, 0.68). * the color pink (1, 0.68, 0.68).
*/ */
public static final ColorRGBA Pink = new ColorRGBA(1f, 0.68f, 0.68f, 1f); public static final ColorRGBA Pink = new ColorRGBA(1f, 0.68f, 0.68f, 1f);
/** /**
* the black color with no alpha (0, 0, 0, 0); * the black color with no alpha (0, 0, 0, 0);
*/ */
public static final ColorRGBA BlackNoAlpha = new ColorRGBA(0f, 0f, 0f, 0f); public static final ColorRGBA BlackNoAlpha = new ColorRGBA(0f, 0f, 0f, 0f);
/** /**
* The red component of the color. * The red component of the color.
*/ */
@ -201,7 +195,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return this * @return this
*/ */
public ColorRGBA set(ColorRGBA rgba) { public ColorRGBA set(ColorRGBA rgba) {
if(rgba == null) { if (rgba == null) {
r = 0; r = 0;
g = 0; g = 0;
b = 0; b = 0;
@ -254,7 +248,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return the float array that contains the color elements. * @return the float array that contains the color elements.
*/ */
public float[] getColorArray() { public float[] getColorArray() {
return new float[] {r,g,b,a}; return new float[]{r, g, b, a};
} }
/** /**
@ -264,26 +258,26 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return The float[] after storage. * @return The float[] after storage.
*/ */
public float[] getColorArray(float[] store) { public float[] getColorArray(float[] store) {
store[0]=r; store[0] = r;
store[1]=g; store[1] = g;
store[2]=b; store[2] = b;
store[3]=a; store[3] = a;
return store; return store;
} }
public float getAlpha(){ public float getAlpha() {
return a; return a;
} }
public float getRed(){ public float getRed() {
return r; return r;
} }
public float getBlue(){ public float getBlue() {
return b; return b;
} }
public float getGreen(){ public float getGreen() {
return g; return g;
} }
@ -294,11 +288,11 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @param changeAmnt An amount between 0.0 - 1.0 representing a precentage * @param changeAmnt An amount between 0.0 - 1.0 representing a precentage
* change from this towards finalColor * change from this towards finalColor
*/ */
public void interpolate(ColorRGBA finalColor,float changeAmnt){ public void interpolate(ColorRGBA finalColor, float changeAmnt) {
this.r=(1-changeAmnt)*this.r + changeAmnt*finalColor.r; this.r = (1 - changeAmnt) * this.r + changeAmnt * finalColor.r;
this.g=(1-changeAmnt)*this.g + changeAmnt*finalColor.g; this.g = (1 - changeAmnt) * this.g + changeAmnt * finalColor.g;
this.b=(1-changeAmnt)*this.b + changeAmnt*finalColor.b; this.b = (1 - changeAmnt) * this.b + changeAmnt * finalColor.b;
this.a=(1-changeAmnt)*this.a + changeAmnt*finalColor.a; this.a = (1 - changeAmnt) * this.a + changeAmnt * finalColor.a;
} }
/** /**
@ -309,11 +303,11 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @param changeAmnt An amount between 0.0 - 1.0 representing a precentage * @param changeAmnt An amount between 0.0 - 1.0 representing a precentage
* change from beginColor towards finalColor * change from beginColor towards finalColor
*/ */
public void interpolate(ColorRGBA beginColor,ColorRGBA finalColor,float changeAmnt){ public void interpolate(ColorRGBA beginColor, ColorRGBA finalColor, float changeAmnt) {
this.r=(1-changeAmnt)*beginColor.r + changeAmnt*finalColor.r; this.r = (1 - changeAmnt) * beginColor.r + changeAmnt * finalColor.r;
this.g=(1-changeAmnt)*beginColor.g + changeAmnt*finalColor.g; this.g = (1 - changeAmnt) * beginColor.g + changeAmnt * finalColor.g;
this.b=(1-changeAmnt)*beginColor.b + changeAmnt*finalColor.b; this.b = (1 - changeAmnt) * beginColor.b + changeAmnt * finalColor.b;
this.a=(1-changeAmnt)*beginColor.a + changeAmnt*finalColor.a; this.a = (1 - changeAmnt) * beginColor.a + changeAmnt * finalColor.a;
} }
/** /**
@ -394,7 +388,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return the string representation of this color. * @return the string representation of this color.
*/ */
public String toString() { public String toString() {
return "Color["+r+", "+g+", "+b+", "+a+"]"; return "Color[" + r + ", " + g + ", " + b + ", " + a + "]";
} }
@Override @Override
@ -433,19 +427,27 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return true if the colors are equal, false otherwise. * @return true if the colors are equal, false otherwise.
*/ */
public boolean equals(Object o) { public boolean equals(Object o) {
if( !(o instanceof ColorRGBA) ) { if (!(o instanceof ColorRGBA)) {
return false; return false;
} }
if(this == o) { if (this == o) {
return true; return true;
} }
ColorRGBA comp = (ColorRGBA)o; ColorRGBA comp = (ColorRGBA) o;
if (Float.compare(r, comp.r) != 0) return false; if (Float.compare(r, comp.r) != 0) {
if (Float.compare(g, comp.g) != 0) return false; return false;
if (Float.compare(b, comp.b) != 0) return false; }
if (Float.compare(a, comp.a) != 0) return false; if (Float.compare(g, comp.g) != 0) {
return false;
}
if (Float.compare(b, comp.b) != 0) {
return false;
}
if (Float.compare(a, comp.a) != 0) {
return false;
}
return true; return true;
} }
@ -464,7 +466,6 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
return hash; return hash;
} }
public void write(JmeExporter e) throws IOException { public void write(JmeExporter e) throws IOException {
OutputCapsule capsule = e.getCapsule(this); OutputCapsule capsule = e.getCapsule(this);
capsule.write(r, "r", 0); capsule.write(r, "r", 0);
@ -481,12 +482,12 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
a = capsule.readFloat("a", 0); a = capsule.readFloat("a", 0);
} }
public byte[] asBytesRGBA(){ public byte[] asBytesRGBA() {
byte[] store = new byte[4]; byte[] store = new byte[4];
store[0] = (byte)((int)(r * 255) & 0xFF); store[0] = (byte) ((int) (r * 255) & 0xFF);
store[1] = (byte)((int)(g * 255) & 0xFF); store[1] = (byte) ((int) (g * 255) & 0xFF);
store[2] = (byte)((int)(b * 255) & 0xFF); store[2] = (byte) ((int) (b * 255) & 0xFF);
store[3] = (byte)((int)(a * 255) & 0xFF); store[3] = (byte) ((int) (a * 255) & 0xFF);
return store; return store;
} }
@ -527,4 +528,26 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
b = ((byte) (color >> 8) & 0xFF) / 255f; b = ((byte) (color >> 8) & 0xFF) / 255f;
a = ((byte) (color) & 0xFF) / 255f; a = ((byte) (color) & 0xFF) / 255f;
} }
/**
* Transform the current ColorRGBA to a Vector3f using
* x = r, y = g, z = b. The Alpha value is not used.
*
* This method is useful to use for shaders assignment.
* @return A Vector3f containing the RGB value of current color definition.
*/
public Vector3f toVector3f() {
return new Vector3f(r, g, b);
}
/**
* Transform the current ColorRGBA to a Vector4f using
* x = r, y = g, z = b, w = a.
*
* This method is useful to use for shaders assignment.
* @return A Vector4f containing the RGBA value of current color definition.
*/
public Vector4f toVector4f() {
return new Vector4f(r, g, b, a);
}
} }

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