org.dyn4j.collision.broadphase.DynamicAABBTreeLeaf Maven / Gradle / Ivy
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/*
* Copyright (c) 2010-2016 William Bittle http://www.dyn4j.org/
* 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.
* * 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.
* * Neither the name of dyn4j nor the names of its contributors 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
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*/
package org.dyn4j.collision.broadphase;
import org.dyn4j.collision.Collidable;
import org.dyn4j.collision.Fixture;
/**
* Represents a leaf node in a {@link DynamicAABBTree}.
*
* The leaf nodes in a {@link DynamicAABBTree} are the nodes that contain the {@link Fixture} AABBs.
* @author William Bittle
* @version 3.2.0
* @since 3.2.0
* @param the {@link Collidable} type
* @param the {@link Fixture} type
*/
final class DynamicAABBTreeLeaf, T extends Fixture> extends DynamicAABBTreeNode {
/** The {@link Collidable} */
final E collidable;
/** The {@link Fixture} */
final T fixture;
/** Flag used to determine if a node has been tested before */
boolean tested = false;
/**
* Minimal constructor.
* @param collidable the collidable
* @param fixture the fixture
*/
public DynamicAABBTreeLeaf(E collidable, T fixture) {
this.collidable = collidable;
this.fixture = fixture;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (obj == null) return false;
if (obj == this) return true;
if (obj instanceof DynamicAABBTreeLeaf) {
DynamicAABBTreeLeaf leaf = (DynamicAABBTreeLeaf)obj;
if (leaf.collidable == this.collidable &&
leaf.fixture == this.fixture) {
return true;
}
}
return false;
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
int hash = 17;
hash = hash * 31 + this.collidable.hashCode();
hash = hash * 31 + this.fixture.hashCode();
return hash;
}
/* (non-Javadoc)
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("DynamicAABBTreeLeaf[Collidable=").append(this.collidable.getId())
.append("|Fixture=").append(this.fixture.getId())
.append("|AABB=").append(this.aabb.toString())
.append("|Height=").append(this.height)
.append("|Tested=").append(this.tested)
.append("]");
return sb.toString();
}
}