How to make different block hitbox for each blockstate?

Started by Cdztw on Sat, 06/17/2023 - 16:54

Hello there, I'm trying to make a custom fence. It was almost done except for block hitbox.
This fence have some custom boolean properties I created: "NORTH", "EAST", "SOUTH", "WEST" and "UP".

Screenshot of custom fence and F3 menu.

I want to make this block's hitbox work like this:

If north is true, add a box into hitbox (box: 7, 7, 0, 9, 9, 8)
If east is true, add a box into hitbox (box: 8, 7, 7, 16, 9, 9)
If south is true, add a box into hitbox (box: 7, 7, 8, 9, 9, 16)
If west is true, add a box into hitbox (box: 0, 7, 7, 8, 9, 9)
If up is true, add a box into hitbox (box: 6, 0, 0, 10, 16, 10)
If none of above is true, add a box into hitbox (box: 6, 0, 0, 10, 16, 10)

But I don't know how to do that. I searched up some tutorials, but them seem to be not suitable for the version I use.
I only knows how to make a static hitbox that won't adapt the block's custom state.
I messed around the codes and of course, nothing works.

Can someone help me? That will be a huge appreciated.
The version of MCreator I currently running is 2023.2.
Minecraft version is 1.19.2.
Here is parts of my code:

@Override
public VoxelShape getShape(BlockState state, BlockGetter world, BlockPos pos, CollisionContext context) {
	/*
	Shapes BLOCKSHAPE = new Shapes();
	if (state.getValue(NORTH))
	BLOCKSHAPE.or(box(7, 7, 0, 9, 9, 8));
	if (state.getValue(EAST))
	BLOCKSHAPE.or(BLOCKSHAPE.block(), box(8, 7, 7, 16, 9, 9));
	if (state.getValue(SOUTH))
	BLOCKSHAPE.or(BLOCKSHAPE.block(), box(7, 7, 8, 9, 9, 16));
	if (state.getValue(WEST))
	BLOCKSHAPE.or(BLOCKSHAPE.block(), box(0, 7, 7, 8, 9, 9));
	if (state.getValue(UP))
	BLOCKSHAPE.or(BLOCKSHAPE.block(), box(6, 0, 6, 10, 16, 10));
	*/
	return box(6, 0, 6, 10, 16, 10);
}

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Edited by Cdztw on Sun, 06/18/2023 - 02:25

nvm
I got the solution, works as expected but it needs lot of if-else statements.

@Override
public VoxelShape getShape(BlockState state, BlockGetter world, BlockPos pos, CollisionContext context) {
    boolean stateUp = state.getValue(UP);
    boolean stateNorth = state.getValue(NORTH);
    boolean stateEast = state.getValue(EAST);
    boolean stateSouth = state.getValue(SOUTH);
    boolean stateWest = state.getValue(WEST);
    if (stateUp && stateNorth && stateEast && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(0, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth && stateEast && stateSouth)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(8, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth && stateEast && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(0, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(0, 7, 7, 8, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateEast && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 8, 9, 9, 16), box(0, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth && stateEast)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(8, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth && stateSouth)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(0, 7, 7, 8, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateEast && stateSouth)
        return Shapes.or(box(8, 7, 7, 16, 9, 9), box(7, 7, 8, 9, 9, 16), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateEast && stateWest)
        return Shapes.or(box(0, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 8, 9, 9, 16), box(0, 7, 7, 8, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateNorth)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateEast)
        return Shapes.or(box(8, 7, 7, 16, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateSouth)
        return Shapes.or(box(7, 7, 8, 9, 9, 16), box(6, 0, 6, 10, 16, 10));
    else if (stateUp && stateWest)
        return Shapes.or(box(0, 7, 7, 8, 9, 9), box(6, 0, 6, 10, 16, 10));
    else if (stateNorth && stateEast && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(0, 7, 7, 16, 9, 9));
    else if (stateNorth && stateEast && stateSouth)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(8, 7, 7, 16, 9, 9));
    else if (stateNorth && stateEast && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(0, 7, 7, 16, 9, 9));
    else if (stateNorth && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 16), box(0, 7, 7, 8, 9, 9));
    else if (stateEast && stateSouth && stateWest)
        return Shapes.or(box(7, 7, 8, 9, 9, 16), box(0, 7, 7, 16, 9, 9));
    else if (stateNorth && stateEast)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(8, 7, 7, 16, 9, 9));
    else if (stateNorth && stateSouth)
        return Shapes.or(box(7, 7, 0, 9, 9, 16));
    else if (stateNorth && stateWest)
        return Shapes.or(box(7, 7, 0, 9, 9, 8), box(0, 7, 7, 8, 9, 9));
    else if (stateEast && stateSouth)
        return Shapes.or(box(8, 7, 7, 16, 9, 9), box(7, 7, 8, 9, 9, 16));
    else if (stateEast && stateWest)
        return Shapes.or(box(0, 7, 7, 16, 9, 9));
    else if (stateSouth && stateWest)
        return Shapes.or(box(7, 7, 8, 9, 9, 16), box(0, 7, 7, 8, 9, 9));
    else if (stateNorth)
        return Shapes.or(box(7, 7, 0, 9, 9, 8));
    else if (stateEast)
        return Shapes.or(box(8, 7, 7, 16, 9, 9));
    else if (stateSouth)
        return Shapes.or(box(7, 7, 8, 9, 9, 16));
    else if (stateWest)
        return Shapes.or(box(0, 7, 7, 8, 9, 9));
    else
        return box(6, 0, 6, 10, 16, 10);
}

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I got a better solution!
It doesn't need that ridiculous amount of if-else statement to get the job done.

@Override
    public VoxelShape getShape(BlockState state, BlockGetter world, BlockPos pos, CollisionContext context) {
        boolean stateUP      = state.getValue(UP);
        boolean stateNORTH   = state.getValue(NORTH);
        boolean stateEAST    = state.getValue(EAST);
        boolean stateSOUTH   = state.getValue(SOUTH);
        boolean stateWEST    = state.getValue(WEST);
        VoxelShape result    = box(0, 0, 0, 0, 0, 0);
        if (stateUP || (!stateUP && !stateNORTH && !stateEAST && !stateSOUTH && !stateWEST))
            result = Shapes.or(result, box(6, 0, 6, 10, 16, 10));
        if (stateNORTH)
            result = Shapes.or(result, box(7, 7, 0, 9, 9, 8));
        if (stateEAST)
            result = Shapes.or(result, box(8, 7, 7, 16, 9, 9));
        if (stateSOUTH)
            result = Shapes.or(result, box(7, 7, 8, 9, 9, 16));
        if (stateWEST)
            result = Shapes.or(result, box(0, 7, 7, 8, 9, 9));
        return result;
    }

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