I have now employed quite a few "days" with Java. Now I am working on Minecraft mods. My first mods are now finished and work fine with no errors. (many new items, blocks, crafting recipes ....)

 

My next idea is the melons blocks on "Hopper" grow.

Since I still have difficulties in implementing how to begin there.

 

Can I use "Forge" simply override the melons class, or change it? If so, how?

 

 

BlockStem.java:

 

[....]
/**
     * is the block grass, dirt or farmland
     */
    protected boolean canPlaceBlockOn(Block ground)
    {
        return ground == Blocks.farmland;
    }
[....]

 

 

The search API was not really helped (and also in the forum or google).

Maybe I've also just looking for the wrong, who knows.

 

Thanks for the help.

Greetings from Germany

 

PS: Sorry for the bad english ... Google's fault: D

You can't directly replace whole class without using ASM.

You can replace registry, but them you will create huge incompatybility.

 

Best way is to utilize events.

In your case you might want to use "PlaceEvent". Google on how to use Forge events.

 

Write what exacly do you need for more help.

Hey, thx for the answer...

 

I can't find the event "PlaceEvent" or any other events in eclipse... ? No events.. nothing

But i can't find the event here too... http://www.minecraftforge.net/wiki/Event_Reference#BlockEvent

net.minecraftforge.event.world.BlockEvent.PlaceEvent

 

If it's not there, you setup your workspace badly.

http://www.minecraftforge.net/forum/index.php/topic,14048.0.html

Okay it works.. it was a fail in eclipse..

 

Now, the discription of the event ist:

 

 

net.minecraftforge.event.world.BlockEvent.PlaceEvent

@Cancelable

Called when a block is placed by a player. If a Block Place event is cancelled, the block will not be placed.

 

Player? melon_block is set by melon_stam ? or not?

 

My next idea is the melons blocks on "Hopper" grow.

 

I don't understand what you want.

 

Write what exacly do you need for more help.

@Ernio He wants to change the way melons blocks behave, which is not necessarily only when placed by players, but when they grow from stems.

 

@OP I'm not sure if this will work, but you could try BlockEvent.NeighborNotifyEvent - it fires whenever a block notifies its neighbors that it has changed, and may fire for stems when they set the melon block, or perhaps for the melon block when it is first set in the world.

 

I'll leave digging around in the code / testing it up to you, but that's where I'd start.

Yes that it is...

okay i will test it...

Hey ho,

 

the BlockEvent.NeighborNotifyEvent don't fires when stems set the melon block... i have try it.. any other ideas?

Any other have a idea?

I am cueless

Look at World#setBlockState - each time the stem grows, that method is called, which should allow you to make your checks (using the block snapshot event) and see if you want to place a melon block on top of a hopper.

oooor you could replace the stews instead of the melons, because there is no reason the replace the behaviour of the melon. you want to change the behavior of the stews, and tell them where to put melons

Why are you wanting to grow melons on hoppers?

hey,

 

i have a melon cutter ... see here: http://minecraft-bauideen.de/img/big_551.jpg[/img]

 

The method with pistons is too big.. i like small

Well there are many ways to do it, replace melons, replace pistons, replace hoppers, etc..

Probably your best bet would be to create a new block that acts like a hopper that allows melons to grow on them.

Hey,

 

okay thx i will test it..

I thought it is the stem that prevents the melon block to set it on the top of the hopper... on creativ i can manualy place a melon block on the top of the hopper... only in surrival the stem dont place the melon block on a hopper...