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Posted

I wrote a code that, when you right-click, places a diamond block where you look, but I can't get the coordiats.

here my code:

        if(!world.isClientSide) {
            double x = player.getLookVec().xCoord;
            double y = player.getLookVec().yCoord;
            double z = player.getLookVec().zCoord;
            BlockPos blockPos = new BlockPos(x, y, z);
            world.setBlockAndUpdate(blockPos, Blocks.DIAMOND_BLOCK/*for example*/.defaultBlockState());
        }

(the getLookVec does not work)

Edited by DoctorG_Mystery

  • Author

here is all of the code in the script:

package drgmystery.darklight.item;

import drgmystery.darklight.init.DarklightItemGroups;
import net.minecraft.block.Blocks;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.item.Rarity;
import net.minecraft.util.ActionResult;
import net.minecraft.util.Hand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;

public class TestItem1 extends Item{
    
    public TestItem1() {
        super(new Properties().defaultDurability(20).tab(DarklightItemGroups.GROUP).rarity(Rarity.EPIC));
    }
    
    @Override
    public ActionResult<ItemStack> use(World world, PlayerEntity player, Hand hand) {
        
        if(!world.isClientSide) {
            double x = player.getLookVec().xCoord;
            double y = player.getLookVec().yCoord;
            double z = player.getLookVec().zCoord;
            BlockPos blockPos = new BlockPos(x, y, z);
            world.setBlockAndUpdate(blockPos, Blocks.DIAMOND_BLOCK.defaultBlockState());
        }
        return super.use(world, player, hand);
    }
    
}

 

Edited by DoctorG_Mystery

  • Author

If I do that, it tells me that at useOn (World world, PlayerEntity player, Hand hand) something is wrong and as a solution it suggests deleting the @Override 

the error with getLookVec() is also still there
here the code:

package drgmystery.darklight.item;

import drgmystery.darklight.init.DarklightItemGroups;
import net.minecraft.block.Blocks;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.item.Rarity;
import net.minecraft.util.ActionResult;
import net.minecraft.util.Hand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;

public class TestItem1 extends Item{
    
    public TestItem1() {
        super(new Properties().defaultDurability(20).tab(DarklightItemGroups.GROUP).rarity(Rarity.EPIC));
    }
    
    @Override
    public ActionResult<ItemStack> useOn(World world, PlayerEntity player, Hand hand) {
        
        if(!world.isClientSide) {
            double x = player.getLookVec().xCoord;
            double y = player.getLookVec().yCoord;
            double z = player.getLookVec().zCoord;
            BlockPos blockPos = new BlockPos(x, y, z);
            world.setBlockAndUpdate(blockPos, Blocks.DIAMOND_BLOCK.defaultBlockState());
        }
        return super.useOn(world, player, hand);
    }
    
}

 

Edited by DoctorG_Mystery

  • Author

Overriting means somthing like transmission so you declares a methode in a class an give out if needed but how can I Overrite/declares useOn? First you mean I shoud use useOn not use so I have remove use and write useOn so there's an error and as solution I shoud remove the @Override than you said I shoud overrite the methode.

 

  • Author

wow I learned java and beguin moding, I hadn't any Problems, than I don't now or understand one thing I quest in a Forum so the final awnser is: "lern java" thanks

if you don't know how to override the correct method you don't know basic java

Edited by Luis_ST

  • Author

I see now a Video specific for overriting I think I understand now: 

I have a basic method:

public void breathe () {
           System.out.println ("puuuuuh");
            }


then I have three (or more / less) objects on which it should be executed:

animal x = new bird ();
x. breathe ();
x = new cat ();
x. breathe ();
x = new animal ();
x. breathe ();
//so the result is:
puuuuuh
puuuuuh
puuuuuh

But if you change the ...prnitln("puuuuuh"); zu ...println("pip pip"); directly in the class of bird then the master method that is in animal was overwritten.

//so here is the result:
pip pip
puuuuuh
puuuuuh

what you say to that?

Edited by DoctorG_Mystery

  • Author

I have no made a base methode and an overrited methode in 2 Scripts:

Base methode:

package drgmystery.darklight.init;

import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ActionResult;
import net.minecraft.util.Hand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;

public class DarklightOverrite {
    
    public ActionResult<ItemStack> use(PlayerEntity player, World world, Hand hand, BlockPos Pos) {
        // TODO Auto-generated method stub
        return null;
    }
}

Overrited methode:

package drgmystery.darklight.events;

import drgmystery.darklight.init.DarklightOverrite;
import net.minecraft.block.Blocks;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.item.ItemStack;
import net.minecraft.util.ActionResult;
import net.minecraft.util.Hand;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventBusSubscriber.Bus;

@Mod.EventBusSubscriber(modid = "darklight", bus = Bus.FORGE, value = Dist.CLIENT)
public class DarklightPlaceTest extends DarklightOverrite{
    
    @Override
    @SubscribeEvent
        public ActionResult<ItemStack> useOn(PlayerEntity player, World world, Hand hand, BlockPos Pos){
            if(!world.isClientSide){
                double x = player.position().x();
                double y = player.position().y();
                double z = player.position().z(); 
                BlockPos blockPos = new BlockPos(x, y, z);
                world.setBlockAndUpdate(new BlockPos(blockPos), Blocks.DIAMOND_BLOCK.defaultBlockState());
            }
            return ActionResult.pass(null);
        }

}

and here is the item script:

package drgmystery.darklight.item;

import drgmystery.darklight.init.DarklightItemGroups;
import net.minecraft.item.Item;
import net.minecraft.item.Rarity;

public class TestItem1 extends Item{
    
    public TestItem1() {
        super(new Properties().defaultDurability(20).tab(DarklightItemGroups.GROUP).rarity(Rarity.EPIC));
    }
    
}

so what next? The problem with the getLookVec is still there(I first changed getLookVec to position), I think that there is a new keyword in 1.16.5 ...

Edited by DoctorG_Mystery

  • Author

I have find the useOn method in Referenced Liebraris -> forge-1.16.5.36.2.2_mapped..._recomp -> net.minecraft.item -> Item.class public ActionResultType useOn(...){ ... } is that the right?

  • Author

if you move the mouse pointer to useOn (the useOn in the class I created), then it shows you errors and the quick fixes and usually it shows you "autogenerate useOn method here" (or something like that) then The IDE generates the useOn method here, which also contains "// TODO Auto-generated constructor stub"

3 minutes ago, DoctorG_Mystery said:

the @overrite before the useOn, a quick fix is to remove that, so I think the @overrite

this is not really helpful, do what @diesieben07told you

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