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/*******************************************************************************
* Copyright 2014 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.ai.utils.random;
import org.mini2Dx.gdx.math.MathUtils;
/** @author davebaol */
public final class TriangularIntegerDistribution extends IntegerDistribution {
private final int low;
private final int high;
private final float mode;
public TriangularIntegerDistribution (int high) {
this(-high, high);
}
public TriangularIntegerDistribution (int low, int high) {
this(low, high, (low + high) * .5f);
}
public TriangularIntegerDistribution (int low, int high, float mode) {
this.low = low;
this.high = high;
this.mode = mode;
}
@Override
public int nextInt () {
float r;
if (-low == high && mode == 0)
r = MathUtils.randomTriangular(high); // It's faster
else
r = MathUtils.randomTriangular(low, high, mode);
return Math.round(r);
}
public int getLow () {
return low;
}
public int getHigh () {
return high;
}
public float getMode () {
return mode;
}
}