/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.badlogic.gdx.scenes.scene2d.actions;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.scenes.scene2d.Actor;
/** Sets the actor's color (or a specified color), from the current to the new color. Note this action transitions from the color
* at the time the action starts to the specified color.
* @author Nathan Sweet */
public class ColorAction extends TemporalAction {
private float startR, startG, startB, startA;
private Color color;
private final Color end = new Color();
protected void begin () {
if (color == null) color = target.getColor();
startR = color.r;
startG = color.g;
startB = color.b;
startA = color.a;
}
protected void update (float percent) {
float r = startR + (end.r - startR) * percent;
float g = startG + (end.g - startG) * percent;
float b = startB + (end.b - startB) * percent;
float a = startA + (end.a - startA) * percent;
color.set(r, g, b, a);
}
public void reset () {
super.reset();
color = null;
}
public Color getColor () {
return color;
}
/** Sets the color to modify. If null (the default), the {@link #getActor() actor's} {@link Actor#getColor() color} will be
* used. */
public void setColor (Color color) {
this.color = color;
}
public Color getEndColor () {
return end;
}
/** Sets the color to transition to. Required. */
public void setEndColor (Color color) {
end.set(color);
}
}