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AIRobotFindRandomGroundBlock.java
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AIRobotFindRandomGroundBlock.java
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/**
* Copyright (c) 2011-2014, 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.core.robots;
import buildcraft.api.core.BlockIndex;
import buildcraft.api.core.IBox;
import buildcraft.api.robots.AIRobot;
import buildcraft.api.robots.EntityRobotBase;
import buildcraft.core.Box;
public class AIRobotFindRandomGroundBlock extends AIRobot {
private static final int MAX_ATTEMPTS = 4096;
public BlockIndex blockFound;
private int range;
private IBlockFilter filter;
private IBox area;
private int attempts = 0;
public AIRobotFindRandomGroundBlock(EntityRobotBase iRobot, int iRange, IBlockFilter iFilter, IBox iArea) {
super(iRobot, 2, 1);
range = iRange;
filter = iFilter;
area = iArea;
}
@Override
public void update() {
attempts++;
if (attempts > MAX_ATTEMPTS) {
terminate();
}
int x = 0;
int z = 0;
if (area == null) {
double r = robot.worldObj.rand.nextFloat() * range;
double a = robot.worldObj.rand.nextFloat() * 2.0 * Math.PI;
x = (int) (Math.cos(a) * r + Math.floor(robot.posX));
z = (int) (Math.sin(a) * r + Math.floor(robot.posZ));
} else {
x = (int) area.pMin().x + robot.worldObj.rand.nextInt(((Box) area).sizeX());
z = (int) area.pMin().z + robot.worldObj.rand.nextInt(((Box) area).sizeZ());
}
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;
}
}
}
}