/*
* Copyright 2013 MovingBlocks
*
* 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 org.terasology.logic.actions;
import org.terasology.entitySystem.entity.EntityBuilder;
import org.terasology.entitySystem.entity.EntityManager;
import org.terasology.entitySystem.entity.EntityRef;
import org.terasology.entitySystem.event.ReceiveEvent;
import org.terasology.entitySystem.systems.BaseComponentSystem;
import org.terasology.entitySystem.systems.RegisterMode;
import org.terasology.entitySystem.systems.RegisterSystem;
import org.terasology.logic.common.ActivateEvent;
import org.terasology.logic.health.DoDamageEvent;
import org.terasology.logic.health.EngineDamageTypes;
import org.terasology.logic.location.LocationComponent;
import org.terasology.math.Vector3i;
import org.terasology.physics.Physics;
import org.terasology.registry.In;
import org.terasology.utilities.random.FastRandom;
import org.terasology.utilities.random.Random;
import org.terasology.world.BlockEntityRegistry;
import org.terasology.world.WorldProvider;
import org.terasology.world.block.Block;
import javax.vecmath.Vector3f;
/**
* @author Immortius <immortius@gmail.com>
*/
@RegisterSystem(RegisterMode.AUTHORITY)
public class TunnelAction extends BaseComponentSystem {
private static final int MAX_DESTROYED_BLOCKS = 1000;
private static final int MAX_PARTICLE_EFFECTS = 4;
@In
private WorldProvider worldProvider;
@In
private Physics physicsRenderer;
@In
private BlockEntityRegistry blockEntityRegistry;
@In
private EntityManager entityManager;
private Random random = new FastRandom();
@Override
public void initialise() {
}
@Override
public void shutdown() {
}
@ReceiveEvent(components = TunnelActionComponent.class)
public void onActivate(ActivateEvent event, EntityRef entity) {
Vector3f dir = new Vector3f(event.getDirection());
dir.scale(4.0f);
Vector3f origin = new Vector3f(event.getOrigin());
origin.add(dir);
Vector3i blockPos = new Vector3i();
int particleEffects = 0;
int blockCounter = MAX_DESTROYED_BLOCKS;
for (int s = 0; s <= 512; s++) {
origin.add(dir);
if (!worldProvider.isBlockRelevant(origin)) {
break;
}
for (int i = 0; i < 64; i++) {
Vector3f direction = random.nextVector3f(1.0f);
Vector3f impulse = new Vector3f(direction);
impulse.scale(200);
for (int j = 0; j < 3; j++) {
Vector3f target = new Vector3f(origin);
target.x += direction.x * j;
target.y += direction.y * j;
target.z += direction.z * j;
blockPos.set((int) target.x, (int) target.y, (int) target.z);
Block currentBlock = worldProvider.getBlock(blockPos);
if (currentBlock.isDestructible()) {
if (particleEffects < MAX_PARTICLE_EFFECTS) {
EntityBuilder builder = entityManager.newBuilder("engine:smokeExplosion");
builder.getComponent(LocationComponent.class).setWorldPosition(target);
builder.build();
particleEffects++;
}
if (random.nextInt(4) == 0) {
EntityRef blockEntity = blockEntityRegistry.getEntityAt(blockPos);
blockEntity.send(new DoDamageEvent(1000, EngineDamageTypes.EXPLOSIVE.get()));
}
blockCounter--;
}
if (blockCounter <= 0) {
return;
}
}
}
}
// No blocks were destroyed, so cancel the event
if (blockCounter == MAX_DESTROYED_BLOCKS) {
event.consume();
}
}
}