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AIRobotSearchRandomGroundBlock.java
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AIRobotSearchRandomGroundBlock.java
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/**
* Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.robotics.ai;
import net.minecraft.util.MathHelper;
import buildcraft.api.core.BlockIndex;
import buildcraft.api.core.IZone;
import buildcraft.api.robots.AIRobot;
import buildcraft.api.robots.EntityRobotBase;
import buildcraft.core.lib.utils.IBlockFilter;
public class AIRobotSearchRandomGroundBlock extends AIRobot {
private static final int MAX_ATTEMPTS = 4096;
public BlockIndex blockFound;
private int range;
private IBlockFilter filter;
private IZone zone;
private int attempts = 0;
public AIRobotSearchRandomGroundBlock(EntityRobotBase iRobot) {
super(iRobot);
}
public AIRobotSearchRandomGroundBlock(EntityRobotBase iRobot, int iRange, IBlockFilter iFilter, IZone iZone) {
this(iRobot);
range = iRange;
filter = iFilter;
zone = iZone;
}
@Override
public void update() {
if (filter == null) {
// defensive code
terminate();
}
attempts++;
if (attempts > MAX_ATTEMPTS) {
terminate();
}
int x = 0;
int z = 0;
if (zone == null) {
double r = robot.worldObj.rand.nextFloat() * range;
float a = robot.worldObj.rand.nextFloat() * 2.0F * (float) Math.PI;
x = (int) (MathHelper.cos(a) * r + Math.floor(robot.posX));
z = (int) (MathHelper.sin(a) * r + Math.floor(robot.posZ));
} else {
BlockIndex b = zone.getRandomBlockIndex(robot.worldObj.rand);
x = b.x;
z = b.z;
}
for (int y = robot.worldObj.getHeight(); y >= 0; --y) {
if (filter.matches(robot.worldObj, x, y, z)) {
blockFound = new BlockIndex(x, y, z);
terminate();
return;
} else if (!robot.worldObj.isAirBlock(x, y, z)) {
return;
}
}
}
@Override
public boolean success() {
return blockFound != null;
}
@Override
public int getEnergyCost() {
return 2;
}
}