StaticEntity.java

/*******************************************************************************
 * Copyright 2015 Maximilian Stark | Dakror <mail@dakror.de>
 * 
 * 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 de.dakror.vloxlands.game.entity.statics;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

import com.badlogic.gdx.math.Vector3;

import de.dakror.vloxlands.game.entity.Entity;
import de.dakror.vloxlands.util.math.Bits;

/**
 * @author Dakror
 */
public abstract class StaticEntity extends Entity {
	protected Vector3 voxelPos;
	
	protected StaticEntity(float x, float y, float z, String model) {
		super(x, y, z, model);
		voxelPos = new Vector3(Math.round(x), Math.round(y), Math.round(z));
	}
	
	public void updateVoxelPos() {
		modelInstance.transform.getTranslation(posCache);
		modelInstance.transform.getRotation(rotCache);
		Vector3 p = posCache.cpy().sub(island.pos).sub(blockTrn);
		voxelPos = new Vector3(Math.round(p.x), Math.round(p.y), Math.round(p.z));
	}
	
	public Vector3 getVoxelPos() {
		return voxelPos;
	}
	
	public boolean canBePlaced() {
		int width = (int) Math.ceil(boundingBox.getDimensions().x);
		int height = (int) Math.ceil(boundingBox.getDimensions().y);
		int depth = (int) Math.ceil(boundingBox.getDimensions().z);
		
		for (int i = 0; i < width; i++) {
			for (int j = -1; j < height; j++) {
				for (int k = 0; k < depth; k++) {
					if (j == -1 && island.get(i + voxelPos.x, j + voxelPos.y + 1, k + voxelPos.z) == 0) return false;
					else if (j > -1 && island.get(i + voxelPos.x, j + voxelPos.y + 1, k + voxelPos.z) != 0) return false;
				}
			}
		}
		
		for (Entity s : island.getEntities())
			if (intersects(s)) return false;
		
		return true;
	}
	
	@Override
	public void save(ByteArrayOutputStream baos) throws IOException {
		super.save(baos);
		
		Bits.putVector3(baos, voxelPos);
	}
}