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[1.7.2] Motion and AABB

Posted May 13, 201411 yr

I'm making a block that acts like a fan, and uses meta data to orientate itself.

package fans.tileentity;

import java.util.List;

import net.minecraft.entity.Entity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import fans.block.BlockFan;

public class TileEntityFan extends TileEntity {
@Override
public void updateEntity() {
	if(BlockFan.isPowered(worldObj, xCoord, yCoord, zCoord)) {
		int current = worldObj.getBlockMetadata(xCoord, yCoord, zCoord);
		switch(current) {
		case (0): {
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 1, zCoord + );
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionZ += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
		}
		case (1): {
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 8, yCoord + 1, zCoord - 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionX += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
		}
		case (2): {
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 1, zCoord - );
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionZ -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
		}
		case (3): {
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord - 8, yCoord + 1, zCoord - 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionX -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
		}
		case (4): {
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 8, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionY += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
		}
		case (5): {
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord - 8, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionY -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
		}
		}
	}
}
}

For some reason, when its oriented in a horizontal position and I'm standing on top of it, it slows me down. Also, when I jump, I get launched as if the fan oriented upwards.

Kain

Quote

May 14, 201411 yr

If you're intending for your metadata to match minecraft's "side", you've got them mixed up.

See here

http://greyminecraftcoder.blogspot.com.au/2013/07/blocks.html

-TGG

Quote

May 14, 201411 yr

Author

Oh, I just used my own meta data. It orientates itself properly.

Kain

Quote

May 14, 201411 yr

Author

Here's some updated code:

package fans.tileentity;

import java.util.List;

import net.minecraft.entity.Entity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import fans.block.BlockFan;

public class TileEntityFan extends TileEntity {
@Override
public void updateEntity() {
	if(BlockFan.isPowered(worldObj, xCoord, yCoord, zCoord)) {
		int current = worldObj.getBlockMetadata(xCoord, yCoord, zCoord);
		switch(current) {
		case (0): { //Front
			System.err.println("CURRENT: " + current);
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 1, zCoord + 9));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionZ += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (1): { //Right
			System.err.println("CURRENT: " + current);
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 9, yCoord + 1, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionX += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (2): { //Back
			System.err.println("CURRENT: " + current);
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 1, zCoord - );
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionZ -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (3): { //Left
			System.err.println("CURRENT: " + current);
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord - 8, yCoord + 1, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionX -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (4): { //Top
			System.err.println("CURRENT: " + current);
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 9, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionY += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (5): { //Bottom
			System.err.println("CURRENT: " + current);
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord - 8, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionY -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		}
	}
}
}

I got the bug fixed, I forgot to add breaks in the cases.

My new problem is that the front, right, and top code work, but not he back, left, and bottom code.

Kain

Quote

May 14, 201411 yr

Author

Fixed it, I don't know exactly what was wrong, but my friend suggested moving the x/y/z coord changes in the nonworking sides to the minimum coords.

package fans.tileentity;

import java.util.List;

import net.minecraft.entity.Entity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import fans.block.BlockFan;

public class TileEntityFan extends TileEntity {
@Override
public void updateEntity() {
	if(BlockFan.isPowered(worldObj, xCoord, yCoord, zCoord)) {
		int current = worldObj.getBlockMetadata(xCoord, yCoord, zCoord);
		switch(current) {
		case (0): { //Front
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 1, zCoord + 9));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionZ += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (1): { //Right
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 9, yCoord + 1, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionX += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (2): { //Back
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord - 8, xCoord + 1, yCoord + 1, zCoord));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionZ -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (3): { //Left
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord - 8, yCoord, zCoord, xCoord, yCoord + 1, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionX -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (4): { //Top
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord, zCoord, xCoord + 1, yCoord + 9, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionY += ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		case (5): { //Bottom
			List entities = worldObj.getEntitiesWithinAABB(Entity.class, AxisAlignedBB.getBoundingBox(xCoord, yCoord - 8, zCoord, xCoord + 1, yCoord, zCoord + 1));
			if(!entities.isEmpty()) {
				for(Object obj : entities) {
					if(obj instanceof Entity && !((Entity) obj).isSneaking()) {
						((Entity) obj).motionY -= ((BlockFan) this.getBlockType()).getPower();
					}
				}
			}
			break;
		}
		}
	}
}
}

Kain

Quote

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[1.7.2] Motion and AABB

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