/*
* This file is part of Vanilla.
*
* Copyright (c) 2011 Spout LLC <http://www.spout.org/>
* Vanilla is licensed under the Spout License Version 1.
*
* Vanilla is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* In addition, 180 days after any changes are published, you can use the
* software, incorporating those changes, under the terms of the MIT license,
* as described in the Spout License Version 1.
*
* Vanilla is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License,
* the MIT license and the Spout License Version 1 along with this program.
* If not, see <http://www.gnu.org/licenses/> for the GNU Lesser General Public
* License and see <http://spout.in/licensev1> for the full license, including
* the MIT license.
*/
package org.spout.vanilla.component.entity.substance;
import org.spout.api.component.entity.PhysicsComponent;
import org.spout.api.event.entity.EntityCollideBlockEvent;
import org.spout.api.event.entity.EntityCollideEvent;
import org.spout.api.geo.cuboid.Block;
import org.spout.api.geo.discrete.Point;
import org.spout.api.inventory.ItemStack;
import org.spout.api.material.BlockMaterial;
import org.spout.api.material.block.BlockFace;
import org.spout.vanilla.material.VanillaBlockMaterial;
import org.spout.vanilla.protocol.entity.object.FallingBlockProtocol;
import org.spout.vanilla.protocol.entity.object.ObjectType;
public class FallingBlock extends Substance {
private BlockMaterial material;
@Override
public void onAttached() {
setEntityProtocol(new FallingBlockProtocol(ObjectType.FALLING_OBJECT));
}
public void setMaterial(BlockMaterial material) {
if (material == null) {
throw new IllegalArgumentException("Cannot set a null material for the FallingBlock");
}
if (material.equals(this.material)) {
return;
}
this.material = material;
//Physics
PhysicsComponent physics = getOwner().getPhysics();
physics.activate(material.getMass(), material.getShape(), false, true);
physics.setFriction(material.getFriction());
physics.setRestitution(material.getRestitution());
}
public BlockMaterial getMaterial() {
return material;
}
@Override
public void onCollided(EntityCollideEvent event) {
if (event instanceof EntityCollideBlockEvent) {
final EntityCollideBlockEvent collideBlockEvent = (EntityCollideBlockEvent) event;
final Point point = new Point(collideBlockEvent.getContactInfo().getNormal(), getOwner().getWorld());
final int x = point.getBlockX();
final int y = point.getBlockX();
final int z = point.getBlockX();
final Block translated = getOwner().getWorld().getBlock(x, y, z).translate(BlockFace.TOP);
final BlockMaterial material = translated.getMaterial();
if (material.isPlacementObstacle()) {
Item.dropNaturally(point, new ItemStack(getMaterial(), 1));
} else {
translated.setMaterial(getMaterial(), getMaterial().toCause(point));
}
getOwner().remove();
}
}
/**
* Whether the material can stop a falling block from falling, acting as the new ground block.
*
* @param material The material to check
* @return True if it obstructs further falling, False if not
*/
public static boolean isFallingObstacle(BlockMaterial material) {
if (material == BlockMaterial.AIR || material.getShape() == null) {
return false;
}
if (material instanceof VanillaBlockMaterial) {
VanillaBlockMaterial vbm = (VanillaBlockMaterial) material;
if (!vbm.isPlacementObstacle()) {
return false;
}
}
return true;
}
}