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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. 259
      engine/src/core/com/jme3/math/ColorRGBA.java

259
engine/src/core/com/jme3/math/ColorRGBA.java
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@ -1,35 +1,32 @@
/*
* Copyright (c) 2009-2010 jMonkeyEngine
* All rights reserved.
* 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.
* 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.
* 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.
* 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.
* 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.math;
import com.jme3.export.InputCapsule;
@ -39,25 +36,24 @@ import com.jme3.export.OutputCapsule;
import com.jme3.export.Savable;
import java.io.IOException;
/**
* <code>ColorRGBA</code> defines a color made from a collection of
* red, green and blue values. An alpha value determines is transparency.
* All values must be between 0 and 1. If any value is set higher or lower
* than these constraints they are clamped to the min or max. That is, if
* a value smaller than zero is set the value clamps to zero. If a value
* higher than 1 is passed, that value is clamped to 1. However, because the
* attributes r, g, b, a are public for efficiency reasons, they can be
* directly modified with invalid values. The client should take care when
* directly addressing the values. A call to clamp will assure that the values
* are within the constraints.
* <code>ColorRGBA</code> defines a color made from a collection of red, green
* and blue values. An alpha value determines is transparency. All values must
* be between 0 and 1. If any value is set higher or lower than these
* constraints they are clamped to the min or max. That is, if a value smaller
* than zero is set the value clamps to zero. If a value higher than 1 is
* passed, that value is clamped to 1. However, because the attributes r, g, b,
* a are public for efficiency reasons, they can be directly modified with
* invalid values. The client should take care when directly addressing the
* values. A call to clamp will assure that the values are within the
* constraints.
*
* @author Mark Powell
* @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 {
static final long serialVersionUID = 1;
/**
* 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).
*/
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).
*/
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).
*/
public static final ColorRGBA Pink = new ColorRGBA(1f, 0.68f, 0.68f, 1f);
/**
* the black color with no alpha (0, 0, 0, 0);
*/
public static final ColorRGBA BlackNoAlpha = new ColorRGBA(0f, 0f, 0f, 0f);
/**
* The red component of the color.
*/
@ -133,7 +127,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
*/
public float b;
/**
* the alpha component of the color. 0 is transparent and 1 is opaque
* the alpha component of the color. 0 is transparent and 1 is opaque
*/
public float a;
@ -156,10 +150,10 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @param a the alpha component of this color.
*/
public ColorRGBA(float r, float g, float b, float a) {
this.r = r;
this.g = g;
this.b = b;
this.a = a;
this.r = r;
this.g = g;
this.b = b;
this.a = a;
}
/**
@ -186,11 +180,11 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return this
*/
public ColorRGBA set(float r, float g, float b, float a) {
this.r = r;
this.g = g;
this.b = b;
this.a = a;
return this;
this.r = r;
this.g = g;
this.b = b;
this.a = a;
return this;
}
/**
@ -201,17 +195,17 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return this
*/
public ColorRGBA set(ColorRGBA rgba) {
if(rgba == null) {
r = 0;
g = 0;
b = 0;
a = 0;
} else {
r = rgba.r;
g = rgba.g;
b = rgba.b;
a = rgba.a;
}
if (rgba == null) {
r = 0;
g = 0;
b = 0;
a = 0;
} else {
r = rgba.r;
g = rgba.g;
b = rgba.b;
a = rgba.a;
}
return this;
}
@ -254,7 +248,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return the float array that contains the color elements.
*/
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.
*/
public float[] getColorArray(float[] store) {
store[0]=r;
store[1]=g;
store[2]=b;
store[3]=a;
store[0] = r;
store[1] = g;
store[2] = b;
store[3] = a;
return store;
}
public float getAlpha(){
public float getAlpha() {
return a;
}
public float getRed(){
public float getRed() {
return r;
}
public float getBlue(){
public float getBlue() {
return b;
}
public float getGreen(){
public float getGreen() {
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
* change from this towards finalColor
*/
public void interpolate(ColorRGBA finalColor,float changeAmnt){
this.r=(1-changeAmnt)*this.r + changeAmnt*finalColor.r;
this.g=(1-changeAmnt)*this.g + changeAmnt*finalColor.g;
this.b=(1-changeAmnt)*this.b + changeAmnt*finalColor.b;
this.a=(1-changeAmnt)*this.a + changeAmnt*finalColor.a;
public void interpolate(ColorRGBA finalColor, float changeAmnt) {
this.r = (1 - changeAmnt) * this.r + changeAmnt * finalColor.r;
this.g = (1 - changeAmnt) * this.g + changeAmnt * finalColor.g;
this.b = (1 - changeAmnt) * this.b + changeAmnt * finalColor.b;
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
* change from beginColor towards finalColor
*/
public void interpolate(ColorRGBA beginColor,ColorRGBA finalColor,float changeAmnt){
this.r=(1-changeAmnt)*beginColor.r + changeAmnt*finalColor.r;
this.g=(1-changeAmnt)*beginColor.g + changeAmnt*finalColor.g;
this.b=(1-changeAmnt)*beginColor.b + changeAmnt*finalColor.b;
this.a=(1-changeAmnt)*beginColor.a + changeAmnt*finalColor.a;
public void interpolate(ColorRGBA beginColor, ColorRGBA finalColor, float changeAmnt) {
this.r = (1 - changeAmnt) * beginColor.r + changeAmnt * finalColor.r;
this.g = (1 - changeAmnt) * beginColor.g + changeAmnt * finalColor.g;
this.b = (1 - changeAmnt) * beginColor.b + changeAmnt * finalColor.b;
this.a = (1 - changeAmnt) * beginColor.a + changeAmnt * finalColor.a;
}
/**
@ -324,11 +318,11 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return a random color.
*/
public static ColorRGBA randomColor() {
ColorRGBA rVal = new ColorRGBA(0, 0, 0, 1);
rVal.r = FastMath.nextRandomFloat();
rVal.g = FastMath.nextRandomFloat();
rVal.b = FastMath.nextRandomFloat();
return rVal;
ColorRGBA rVal = new ColorRGBA(0, 0, 0, 1);
rVal.r = FastMath.nextRandomFloat();
rVal.g = FastMath.nextRandomFloat();
rVal.b = FastMath.nextRandomFloat();
return rVal;
}
/**
@ -394,7 +388,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return the string representation of this color.
*/
public String toString() {
return "Color["+r+", "+g+", "+b+", "+a+"]";
return "Color[" + r + ", " + g + ", " + b + ", " + a + "]";
}
@Override
@ -408,7 +402,7 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
/**
* Saves this ColorRGBA into the given float[] object.
*
*
* @param floats
* The float[] to take this ColorRGBA. If null, a new float[4] is
* created.
@ -433,19 +427,27 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return true if the colors are equal, false otherwise.
*/
public boolean equals(Object o) {
if( !(o instanceof ColorRGBA) ) {
if (!(o instanceof ColorRGBA)) {
return false;
}
if(this == o) {
if (this == o) {
return true;
}
ColorRGBA comp = (ColorRGBA)o;
if (Float.compare(r, comp.r) != 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;
ColorRGBA comp = (ColorRGBA) o;
if (Float.compare(r, comp.r) != 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;
}
@ -456,15 +458,14 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
* @return the hash code value of this color.
*/
public int hashCode() {
int hash = 37;
hash += 37 * hash + Float.floatToIntBits(r);
hash += 37 * hash + Float.floatToIntBits(g);
hash += 37 * hash + Float.floatToIntBits(b);
hash += 37 * hash + Float.floatToIntBits(a);
return hash;
int hash = 37;
hash += 37 * hash + Float.floatToIntBits(r);
hash += 37 * hash + Float.floatToIntBits(g);
hash += 37 * hash + Float.floatToIntBits(b);
hash += 37 * hash + Float.floatToIntBits(a);
return hash;
}
public void write(JmeExporter e) throws IOException {
OutputCapsule capsule = e.getCapsule(this);
capsule.write(r, "r", 0);
@ -481,50 +482,72 @@ public final class ColorRGBA implements Savable, Cloneable, java.io.Serializable
a = capsule.readFloat("a", 0);
}
public byte[] asBytesRGBA(){
public byte[] asBytesRGBA() {
byte[] store = new byte[4];
store[0] = (byte)((int)(r * 255) & 0xFF);
store[1] = (byte)((int)(g * 255) & 0xFF);
store[2] = (byte)((int)(b * 255) & 0xFF);
store[3] = (byte)((int)(a * 255) & 0xFF);
store[0] = (byte) ((int) (r * 255) & 0xFF);
store[1] = (byte) ((int) (g * 255) & 0xFF);
store[2] = (byte) ((int) (b * 255) & 0xFF);
store[3] = (byte) ((int) (a * 255) & 0xFF);
return store;
}
public int asIntARGB() {
int argb = (((int) (a * 255) & 0xFF) << 24)
| (((int) (r * 255) & 0xFF) << 16)
| (((int) (g * 255) & 0xFF) << 8)
| (((int) (b * 255) & 0xFF));
| (((int) (r * 255) & 0xFF) << 16)
| (((int) (g * 255) & 0xFF) << 8)
| (((int) (b * 255) & 0xFF));
return argb;
}
public int asIntRGBA() {
int rgba = (((int) (r * 255) & 0xFF) << 24)
| (((int) (g * 255) & 0xFF) << 16)
| (((int) (b * 255) & 0xFF) << 8)
| (((int) (a * 255) & 0xFF));
| (((int) (g * 255) & 0xFF) << 16)
| (((int) (b * 255) & 0xFF) << 8)
| (((int) (a * 255) & 0xFF));
return rgba;
}
public int asIntABGR() {
int abgr = (((int) (a * 255) & 0xFF) << 24)
| (((int) (b * 255) & 0xFF) << 16)
| (((int) (g * 255) & 0xFF) << 8)
| (((int) (r * 255) & 0xFF));
| (((int) (b * 255) & 0xFF) << 16)
| (((int) (g * 255) & 0xFF) << 8)
| (((int) (r * 255) & 0xFF));
return abgr;
}
public void fromIntARGB(int color) {
a = ((byte) (color >> 24) & 0xFF) / 255f;
r = ((byte) (color >> 16) & 0xFF) / 255f;
g = ((byte) (color >> 8) & 0xFF) / 255f;
b = ((byte) (color) & 0xFF) / 255f;
g = ((byte) (color >> 8) & 0xFF) / 255f;
b = ((byte) (color) & 0xFF) / 255f;
}
public void fromIntRGBA(int color) {
r = ((byte) (color >> 24) & 0xFF) / 255f;
g = ((byte) (color >> 16) & 0xFF) / 255f;
b = ((byte) (color >> 8) & 0xFF) / 255f;
a = ((byte) (color) & 0xFF) / 255f;
b = ((byte) (color >> 8) & 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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