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[1.7.2] Add potion effect to player if he's within certain distance from a block


SackCastellon

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Try looking at the beacon code then.

 

If all else fails use getEntityWithinAABB (and other methods)

Will this return a list of the players within 5 blocks from my custom one?

 

double range = 5.0;
List list = world.getEntitiesWithinAABB(EntityPlayer.class, AxisAlignedBB.getBoundingBox(x - range, y - range, z - range, x + range, y + range, z + range));

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Will this return a list of the players within 5 blocks from my custom one?

 

double range = 5.0;
List list = world.getEntitiesWithinAABB(EntityPlayer.class, AxisAlignedBB.getBoundingBox(x - range, y - range, z - range, x + range, y + range, z + range));

 

No, It will return a list of the entities in 11*11*11 Box surrounding the block.

 

If you want to get the lists of the entities in 10 block-distance,

You have to check for each entity if the squared distance is smaller than 10*10.

I. Stellarium for Minecraft: Configurable Universe for Minecraft! (WIP)

II. Stellar Sky, Better Star Rendering&Sky Utility mod, had separated from Stellarium.

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I have a problem with this code:

public void updateEntity()
{
    	super.updateEntity();
    	
	float f = 5.0F;

	double minX = (float)this.xCoord - f;
	double minY = this.yCoord - f;
	double minZ = this.zCoord - f;
	double maxX = (this.xCoord + 1) + f;
	double maxY = (this.yCoord + 1) + f;
	double maxZ = (this.zCoord + 1) + f;

	List list = this.worldObj.getEntitiesWithinAABB(EntityPlayer.class, AxisAlignedBB.getAABBPool().getAABB(minX, minY, minZ, maxX, maxY, maxZ));

        if(list.size() != 0)
        {
        	for(int i = 0; i < list.size(); ++i)
        	{
        		EntityPlayer entityPlayer = (EntityPlayer) list.get(i);
        		
        		entityPlayer.addPotionEffect(new PotionEffect(10, 2, 0, false));
        	}
        }

 

If the player is nearer then 5 block from my custom one, the he gets a potion effect, but when he goes away more than 5 block, he still has the potion effect.

 

How can i remove it if the player goes away?

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