How does one make a tree in forge?

[DaBananaboat]

I've recently started to mod with Forge and I want to create my own tree.

After trying to look up some tutorials on youtube, I found that these are outdated due to the way textures are now stored.

 

I also tried the javadocs, but I can't really make sense of it..

 

Could anyone here link me an up to date tutorial on making trees or tell me how I could make one?

 

Much appreciated.

[Draco18s]

Are you having trouble adding your custom tree to world gen?

Are you having trouble getting textures to work?

Are you having...some other trouble?

 

What, specifically, is your problem?

[DaBananaboat]

Anything really, I couldn't find any recent tutorials on making trees since most of them are made with 1.4.7.

 

Right now I'm trying to make the actual tree items and then I'll read on how to add them into the world gen.

[Draco18s]

Adding to worldgen requires extending IWorldGenerator and then registering it with GameRegistry.registerWorldGenerator(...)

 

As for generating the tree shapes, take a look at net.minecraft.world.feature.WorldGenTrees.java

That class is pretty much everything you'd need, you just have to tweak the blockID and metadata values to that of your own blocks.

(Note: there should be a way to register a new wood type, but I don't know how.  Haven't gotten that far! ^..^; )

[DaBananaboat]

Well, as far as making blocks go I'm good. But I don't understand how to add the textures for a log since the top and bottom are different to the sides.

 

I'll look into that class, thank you.

[Draco18s]

Well, as far as making blocks go I'm good. But I don't understand how to add the textures for a log since the top and bottom are different to the sides.

 

Take a look at BlockLog.java....

[DaBananaboat]

Take a look at BlockLog.java....

 

I'm looking at it, assuming I also need to extend my block from it.

 

package mods.nl.dabananaboat.projectbanana.common;

import net.minecraft.block.BlockLog;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;

public class BlockBananaLog extends BlockLog
{
public BlockBananaLog(int id)
{
	super(id);
}
}

 

Do I then use this.getBlockTextureFromSide(par1) to set the textures, seeing there is no setter version of it?

[DaBananaboat]

Okay, so I made the textures and after looking around a bit I found that I needed to use

 

public Icon getBlockTextureFromSideAndMetadata(int side, int meta)

 

It now runs perfectly until I want to move to the block itself, at which point it'll crash.

 

Looking at the console, it said it got a NullPointerException.

The error is:

 

java.lang.NullPointerException
at net.minecraft.block.BlockLog.getIcon(BlockLog.java:117)
at net.minecraft.client.renderer.RenderBlocks.getBlockIconFromSideAndMetadata(RenderBlocks.java:8146)
at net.minecraft.client.renderer.RenderBlocks.renderBlockAsItem(RenderBlocks.java:8095)
at net.minecraft.client.renderer.entity.RenderItem.renderItemIntoGUI(RenderItem.java:367)
at net.minecraft.client.renderer.entity.RenderItem.renderItemAndEffectIntoGUI(RenderItem.java:443)
at net.minecraft.client.gui.inventory.GuiContainer.drawSlotInventory(GuiContainer.java:412)
at net.minecraft.client.gui.inventory.GuiContainer.drawScreen(GuiContainer.java:128)
at net.minecraft.client.renderer.InventoryEffectRenderer.drawScreen(InventoryEffectRenderer.java:43)
at net.minecraft.client.gui.inventory.GuiContainerCreative.drawScreen(GuiContainerCreative.java:664)
at net.minecraft.client.renderer.EntityRenderer.updateCameraAndRender(EntityRenderer.java:1021)
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:870)
at net.minecraft.client.Minecraft.run(Minecraft.java:759)
at java.lang.Thread.run(Unknown Source)

 

Here is the full log:

https://www.dropbox.com/s/ol9jcqbq8xs0kou/crash-2013-05-17_22.25.46-client.txt

 

 

My log class is:

 

package mods.nl.dabananaboat.projectbanana.common;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.BlockLog;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.util.Icon;

public class BlockBananaLog extends BlockLog
{
private Icon sides, top, bottom;

public BlockBananaLog(int id)
{
	super(id);
}

@SideOnly(Side.CLIENT)
public void registerIcons(IconRegister reg)
{
	this.top = reg.registerIcon("nl/dabananaboat/projectbanana:BananaTreeTop");
	this.sides = reg.registerIcon("nl/dabananaboat/projectbanana:BananaTreeSides");
	this.bottom = reg.registerIcon("nl/dabananaboat/projectbanana:BananaTreeBottom");
}

public Icon getBlockTextureFromSideAndMetadata(int side, int meta)
{
	if(side == 0)
		return this.bottom;

	else if(side == 1)
		return this.top;

	else
		return this.sides; 
}

}

 

And to load everything in the main class:

 

// LOAD ITEMS
private void loadItems()
{
banana = new ItemBanana(bananaID, 3, 0.3F, false).setUnlocalizedName("Banana");
bananaPeel = new ItemBananaPeel(bananaPeelID).setUnlocalizedName("BananaPeel");
}

// LOAD BLOCKS
private void loadBlocks()
{
bananaLog = new BlockBananaLog(bananaLogID).setUnlocalizedName("BananaLog");
}

// Register languages
private void registerLanguages()
{
// Items
LanguageRegistry.addName(banana, "Banana");
LanguageRegistry.addName(bananaPeel, "Banana Peel");

// Blocks
LanguageRegistry.addName(bananaLog, "Banana Log");
}

// Register items for game
private void registerGame()
{
// Items
GameRegistry.registerItem(banana, "Banana");
GameRegistry.registerItem(bananaPeel, "BananaPeel");

// Blocks
GameRegistry.registerBlock(bananaLog, "BananaLog");
}

 

I truely have no idea what I did wrong.

[Draco18s]

You're not registering your icons properly.

[DaBananaboat]

You're not registering your icons properly.

 

How do I register them then? I don't understand how to.

[SanAndreaP]

You're not registering your icons properly.

 

How do I register them then? I don't understand how to.

 

http://lmgtfy.com/?q=Icons+and+Textures+Forge

[DaBananaboat]

I got it to work-ish.

 

The block is now in the game, but all sides are rendered by the blockIcon

 

 

After following a few links from that search (thanks for the sarcasm btw, I look all over fyi), I got to this:

 

public class BlockBananaLog extends Block
{
private Icon[] textures = new Icon[2];

public BlockBananaLog(int id, Material mat)
{
	super(id, mat);
	this.setCreativeTab(CreativeTabs.tabBlock);
	this.setStepSound(Block.soundWoodFootstep);
	this.setUnlocalizedName("BananaLog");
}

@SideOnly(Side.CLIENT)
@Override
public void registerIcons(IconRegister reg)
{
	textures[0] = reg.registerIcon("nl/dabananaboat/projectbanana:" + this.getUnlocalizedName2() + "Bottom");
	textures[1] = reg.registerIcon("nl/dabananaboat/projectbanana:" + this.getUnlocalizedName2() + "Top");
	this.blockIcon = reg.registerIcon("nl/dabananaboat/projectbanana:" + this.getUnlocalizedName2() + "Sides");
}

public Icon getBlockTextureFromSideAndMetadata(int side, int meta)
{
	if(side == 0)
		return textures[0];
	else if(side == 1)
		return textures[1];
	else
		return this.blockIcon;
}

}

 

I still don't get what I do wrong.

[Draco18s]

And for the eleventh time...

[DaBananaboat]

That's exactly what I did...

 

Still, I get the block in a single texture and not as the log as I want it to be.

 

 

Sorry that I just don't understand, sometimes autism and programming don't match.

[SanAndreaP]

getBlockTextureFromSideAndMetadata

I'm pretty sure that method got renamed. You would have known that if you would use @Override above it.

I think it's called getIcon now

[DaBananaboat]

Following tutorials it seemed to work for everyone else.

 

But changing getBlockTextureFromSideAndMetadata() to getIcon() did it for me.

 

 

Thank you very much and sorry for the bother.

[Draco18s]

That's exactly what I did...

 

No it isn't.

 

Compare and contrast

 

"DecayingWorld:green"

and

"nl/dabananaboat/projectbanana:BananaLogBottom"