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/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.replica.replicaisland;
/**
* A component to include dynamic collision volumes (such as those produced every frame from
* animating sprites) in the dynamic collision world. Given a set of "attack" volumes and
* "vulnerability" volumes (organized such that only attack vs vulnerability intersections result
* in valid "hits"), this component creates a bounding volume that encompasses the set and submits
* it to the dynamic collision system. Including this component in a game object will allow it to
* send and receive hits to other game objects.
*/
public class DynamicCollisionComponent extends GameComponent {
private FixedSizeArray<CollisionVolume> mAttackVolumes;
private FixedSizeArray<CollisionVolume> mVulnerabilityVolumes;
private SphereCollisionVolume mBoundingVolume;
private HitReactionComponent mHitReactionComponent;
public DynamicCollisionComponent() {
super();
mBoundingVolume = new SphereCollisionVolume(0.0f, 0.0f, 0.0f);
setPhase(ComponentPhases.FRAME_END.ordinal());
reset();
}
@Override
public void reset() {
mAttackVolumes = null;
mVulnerabilityVolumes = null;
mBoundingVolume.setCenter(Vector2.ZERO);
mBoundingVolume.setRadius(0.0f);
mHitReactionComponent = null;
}
@Override
public void update(float timeDelta, BaseObject parent) {
GameObjectCollisionSystem collision = sSystemRegistry.gameObjectCollisionSystem;
if (collision != null && mBoundingVolume.getRadius() > 0.0f) {
collision.registerForCollisions((GameObject)parent, mHitReactionComponent, mBoundingVolume,
mAttackVolumes, mVulnerabilityVolumes);
}
}
public void setHitReactionComponent(HitReactionComponent component) {
mHitReactionComponent = component;
}
public void setCollisionVolumes(FixedSizeArray<CollisionVolume> attackVolumes,
FixedSizeArray<CollisionVolume> vulnerableVolumes) {
if (mVulnerabilityVolumes != vulnerableVolumes || mAttackVolumes != attackVolumes) {
mAttackVolumes = attackVolumes;
mVulnerabilityVolumes = vulnerableVolumes;
mBoundingVolume.reset();
if (mAttackVolumes != null) {
final int count = mAttackVolumes.getCount();
for (int x = 0; x < count; x++) {
mBoundingVolume.growBy(mAttackVolumes.get(x));
}
}
if (mVulnerabilityVolumes != null) {
final int count = mVulnerabilityVolumes.getCount();
for (int x = 0; x < count; x++) {
mBoundingVolume.growBy(mVulnerabilityVolumes.get(x));
}
}
}
}
}
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