Changing collision box for a block

[chimera27]

I'm trying to make a block that when the player is near it, they get a potion effect. Adding it when an entity collides with the block works, but I have yet to find a way to change the entity collision size of the block. I tried using

public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    {
        float f = 0.525F;
        return AxisAlignedBB.getAABBPool().getAABB((double)par2 - f, (double)par3 - f, (double)par4 - f, (double)(par2 + f), (double)((float)(par3 + f)), (double)(par4 + f));
    }

But to no avail, that just kinda derped it and made it render huge but keep it's hitbox...

 

Any ideas on how to do this? Also i'm trying to avoid custom AABB's because i'm not familiar with how they work or how to use them other then that they select everything inside them somehow...

[TheGreyGhost]

Hi

 

I'd suggest using a TileEntity instead of messing with the Block.  Whenever I've tried changing block boundingboxes larger in the past it's been an awful headache.

 

Then in the updateEntity method on the server, check for nearby players and apply potion effects.

TileEntityBeacon does exactly that, check it out.

 

-TGG