[UNSOLVED]Requesting help on problem "Walking through custom blocks?"

[MajesticFalcon]

I have created some new items and i have set their bounds different then normal. For example if i made one 10 blocks long

i would be able to walk through 9 of the blocks. The texture still shows though on the 10 long block. i have tryed setting

public AxisAlignedBB getSelectedBoundingBoxFromPool(World par1World, int par2, int par3, int par4)

    {

        float var5 = 1F;

        return AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)((float)par2 + var5), (double)par3, (double)((float)par4 + var5), (double)((float)(par2 + 1) - var5), (double)(par3 + 1), (double)((float)(par4 + 1) - var5));

    }

 

but im still able to walk through them

 

[QuantumLeaf7895]

At risk of putting my foot in my mouth, there are two problems with your method.  Firstly, you're using getSelectedBoundingBoxFromPool.  This method, as the name *and javadoc* imply, only affects what happens when a player puts their cursor over the block (and is client-side only, to boot).  Take a look at BlockFence, that block is technically 1.5 blocks tall and has an example of what you're trying to do.

 

In addition, I'm worried by your use of 'var5's and 'par2's and other anonymous variables -- it makes code terribly difficult to read. MCP-decompiled code looks like that only because of how the vanilla minecraft code has to be deobfuscated and decombiled.  Variable names *that represent what the variable does* are much, much better -- take a look at the methods near the end of Block.java, specifically the bit after the "FORGE START" comment for an example of what I'm talking about.

[MajesticFalcon]

Bro im using mcp so of course they will be like that

[MajesticFalcon]

public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)

    {

return AxisAlignedBB.getAABBPool().addOrModifyAABBInPool(2,2,2,3,3,3);

    }

is what fence uses and it doesnt change the fact i can walk through my block no matter what i put as the min and max

 

[QuantumLeaf7895]

  On 1/6/2013 at 12:32 AM, MajesticFalcon said:

public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)

    {

return AxisAlignedBB.getAABBPool().addOrModifyAABBInPool(2,2,2,3,3,3);

    }

is what fence uses and it doesnt change the fact i can walk through my block no matter what i put as the min and max

 

 

Firstly:  You can rename parameters in overridden methods.

 

getCollisionBoundingBoxFromPool(World world, int x, int y, int z) is *far* easier on the eyes than (World par1, int par2. . .).

 

Secondly, take another look at the fence's code -- you've changed the collision box so that, instead of starting at the relevant block's x, y, and z coordinates, it starts at the (2,2,2) coordinate -- four levels deep in bedrock, not too far from the initial spawn in the x and z directions, no matter where the relevant block actually *is*.  And I apologize that my knowledge of the minecraft engine is somewhat limited, but you might have problems with your block if it extends across chunks.  In general, if a something needs to have a collision box larger than 1 block multiple blocks are used instead -- the top and bottom of a door are technically separate blocks, as is the arm of a piston.  The fence (and fence gate) is vanilla minecraft's only block that has a collision box extending beyond it's 1x1x1 m cube.

[MajesticFalcon]

Google will not help me on this so will somebody else help me

[johnhollowell]

I also am trying to get a block to be walk through. I looked at the vanilla blocks that are walk through, namely BlockTallGrass and it's super class, BlockPlant.  Both have this:

    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    {
        return null;
    }

When I use this on my block, I can force my player into the block by having it in a hole, but when there is an open area to the side of the block the block pushes me into the open space. Anyone know how to fix this?

[allout58]

  On 9/21/2013 at 7:25 PM, johnhollowell said:

I looked at the vanilla blocks that are walk through, namely BlockTallGrass and it's super class, BlockPlant.  Both have this:

    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    {
        return null;
    }

 

 

In addition to this, in the blocks constructor, add a call to

//this.setBlockBounds(minX, minY, minZ, maxX, maxY, maxZ);
this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);

This allowed me to walk through a block. Let me know if this doesn't work and I can look into it more.

[johnhollowell]

What was causing my bug is that I didn't have this:

    @Override
    public boolean renderAsNormalBlock(){
        return false;
    }

Once I changed this, it worked perfectly!