get coordinates of the block the player looking at

[DoctorG_Mystery]

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 August 18, 2021 by DoctorG_Mystery

[DoctorG_Mystery]

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 August 18, 2021 by DoctorG_Mystery

[DoctorG_Mystery]

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 August 18, 2021 by DoctorG_Mystery

[DoctorG_Mystery]

So what I have to do now?

[DoctorG_Mystery]

I have use -> useOn and deleted the @Override

and whats with the getLookVec?

[DoctorG_Mystery]

Describe to me how i can do it, i understand the principle, but not yet how i can use it here.

[DoctorG_Mystery]

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.

 

[DoctorG_Mystery]

So the key word ist extends?

[Luis_ST]

no, learn basic java, and then come back to minecraft modding

[DoctorG_Mystery]

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

[Luis_ST]

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

Edited August 19, 2021 by Luis_ST

[DoctorG_Mystery]

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 August 19, 2021 by DoctorG_Mystery

[DoctorG_Mystery]

and what is the basic / master method for my code?

 

[DoctorG_Mystery]

foget it

[DoctorG_Mystery]

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 August 20, 2021 by DoctorG_Mystery

[DoctorG_Mystery]

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?

[DoctorG_Mystery]

So I find the useOn methode but how can I overrite It? have I to extend out Item.class? 

[DoctorG_Mystery]

I can't autogenerate the methode or I don't now how

[DoctorG_Mystery]

As normal you can go on useOn and there are the quick fixes and there is as normal generate useOn methode here(or smth like this) but it isn't

[DoctorG_Mystery]

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"

[DoctorG_Mystery]

ok now I know ctrl + 3, type overrite, press enter, I don't know this feature yet

Edited August 20, 2021 by DoctorG_Mystery

[DoctorG_Mystery]

now I extend Item, I press ctrl + 3, type overrite, enter, search useOn, press ok, the error is still there.

[DoctorG_Mystery]

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

Edited August 20, 2021 by DoctorG_Mystery

[Luis_ST]

  On 8/20/2021 at 6:43 PM, DoctorG_Mystery said:

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

Expand  

this is not really helpful, do what @diesieben07told you

[DoctorG_Mystery]

ok I make the overrite and nothing happens, the error is still there, no problem is solved. Perfect that what I want...