Hi Guys!

 

I want to create a landmine in minecraft, which has the size of a pressureplate and should take the texture of the block below to hide itself. But how I can do this?

Is there any possibility? Such as:

worldobj.getBlockTexture(X,Y,Z,side);

Also I don't really know, how to create the Explosion if a player or mob (or only a player) step on the mine...

 

I'm not adding any code, because I really have no Idea.

 

Can you help me please?

This is not an easy thing to do.

 

The Secret Rooms mod built an entire camo rendering system to do just this.  Unfortunately, I haven't been able to replicate it inside my own mods.

Try something like this

 

int blockID = par1World.getBlockID(blockX, blockY, blockZ);
Block b0 = Block.blockList[blockID];
b0.getIcon(side, metadata);

Try something like this

 

int blockID = par1World.getBlockID(blockX, blockY, blockZ);
Block b0 = Block.blockList[blockID];
b0.getIcon(side, metadata);

 

Won't work.  All instances of the block would share textures.  As soon as you placed a second one that was on top of a different block, the first one would change.

 

(Tip: block classes are not instanced for each block in the world, there is only a single instance of every block class)

Try something like this

 

int blockID = par1World.getBlockID(blockX, blockY, blockZ);
Block b0 = Block.blockList[blockID];
b0.getIcon(side, metadata);

 

Won't work.  All instances of the block would share textures.  As soon as you placed a second one that was on top of a different block, the first one would change.

 

(Tip: block classes are not instanced for each block in the world, there is only a single instance of every block class)

 

I forgot about that. Well... he could create a different block for each texture (the most common), or just use a transparent texture

It's actually pretty simple.

Override getBlockTexture:

@Override
public Icon getBlockTexture(IBlockAccess world, int x, int y, int z, int side) {
    int idBelow = world.getBlockId(x, y - 1, z);
    if (Block.blocksList[idBelow] != null) {
        return Block.blocksList[idBelow].getBlockTexture(world, x, y - 1, z, side);
    } else {
        return blockIcon; // fallback if no block below for some reason
    }
}

 

Read above.

E.g.: he places the first mine on top of dirt. The mine would have the dirt texture. He places the second mine on top of stone, both mines would change to stone.

E.g.: he places the first mine on top of dirt. The mine would have the dirt texture. He places the second mine on top of stone, both mines would change to stone.

It would not. Read my code. I did exactly that in a very old mod of mine, it works just fine.

Link: http://www.minecraftforum.net/topic/1246526-132-betterpressureplates-pressure-plates-that-adapt-to-the-block-below-beta/

 

That's for 1.3.2, it may not work now. But someone try it and let us know

E.g.: he places the first mine on top of dirt. The mine would have the dirt texture. He places the second mine on top of stone, both mines would change to stone.

It would not. Read my code. I did exactly that in a very old mod of mine, it works just fine.

Link: http://www.minecraftforum.net/topic/1246526-132-betterpressureplates-pressure-plates-that-adapt-to-the-block-below-beta/

 

That's for 1.3.2, it may not work now. But someone try it and let us know

 

It still works. Also it would either be entirely removed or wouldn't have an Icon as return value if it didn't work.

It's actually pretty simple.

Override getBlockTexture:

@Override
public Icon getBlockTexture(IBlockAccess world, int x, int y, int z, int side) {
    int idBelow = world.getBlockId(x, y - 1, z);
    if (Block.blocksList[idBelow] != null) {
        return Block.blocksList[idBelow].getBlockTexture(world, x, y - 1, z, side);
    } else {
        return blockIcon; // fallback if no block below for some reason
    }
}

 

I tried this code, it works fine. But if I place the mine on grass, it takes a stone texture... 

How can I avoid this?

 

(And how can I spawn the explosion if somebody walkes on the mine?)

It's actually pretty simple.

Override getBlockTexture:

@Override
public Icon getBlockTexture(IBlockAccess world, int x, int y, int z, int side) {
    int idBelow = world.getBlockId(x, y - 1, z);
    if (Block.blocksList[idBelow] != null) {
        return Block.blocksList[idBelow].getBlockTexture(world, x, y - 1, z, side);
    } else {
        return blockIcon; // fallback if no block below for some reason
    }
}

 

I tried this code, it works fine. But if I place the mine on grass, it takes a stone texture... 

How can I avoid this?

 

(And how can I spawn the explosion if somebody walkes on the mine?)

 

It's probably not the stone texture, but the un-colorized grass texture. You would need to get the color from the block below, too. There's a method called colorMultiplier. Don't worry about the first parameter, it's basically a world instance (but don't cast it!). Get the block instance below your block and return the same method with the instance (instance.getColorMultiplier), while giving the method the same parameters.

To trigger something on impact, look at the pressure plate code or at the Cactus code.

To create an explosion, look at the TNT entity or at the Creeper. Hint: it's one line of code.

I didn't really understand how to use the ColorMultiplier.

Could you please give me a code example? 

 

(I managed to create an explosion, but it doesn't deal damage. Why? You hear the sound and the particles are rendered, but you don't get any damage and don't fly away... )

I didn't really understand how to use the ColorMultiplier.

Could you pleas give me a code example? 

 

Have some pseudocode:

Block block = Block.blocksList[iBlockAccess.getBlockID(x, y-1, z)];
if(block != null)
    return block.getColorMultiplier(iBlockAccess, x, y-1, z)
else
    return super.getColorMultiplier(...)

(I managed to create an explosion, but it doesn't deal damage. Why? You hear the sound and the particles are rendered, but you don't get any damage and don't fly away... )

 

try this

 

worldObj.newExplosion((Entity)null, this.posX, this.posY, this.posZ, (float)this.explosionRadius, true, true);

Sorry, but I just don't get it right. The method colorMultiplier has got an integer value as return type, but I need an Icon. How can I manage this?

public Icon getBlockTexture(IBlockAccess world, int x, int y, int z, int side) {
    int idBelow = world.getBlockId(x, y - 1, z);
    if (Block.blocksList[idBelow] != null) {
        return Block.blocksList[idBelow].getBlockTexture(world, x, y - 1, z, side);
    } else {
        return blockIcon;// fallback if no block below for some reason
    }
}

(I've used the old code, because your returns a normal dirt texture on a grass Block)

 

@ColdFox: The explosions work now

Sorry, but I just don't get it right. The method colorMultiplier has got an integer value as return type, but I need an Icon. How can I manage this?

public Icon getBlockTexture(IBlockAccess world, int x, int y, int z, int side) {
    int idBelow = world.getBlockId(x, y - 1, z);
    if (Block.blocksList[idBelow] != null) {
        return Block.blocksList[idBelow].getBlockTexture(world, x, y - 1, z, side);
    } else {
        return blockIcon;// fallback if no block below for some reason
    }
}

(I've used the old code, because your returns a normal dirt texture on a grass Block)

 

@ColdFox: The explosions work now

 

No, that code doesn't go to the texture method! Use the previous code you did there. The code I've provided goes into the getColorMultiplier method, which you should override in your block class.

OK, now I got it.

Thank you very much, it works well!

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