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    SOLVED EntityProjectile

    1.9.x et 1.10.x
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    • Gabs
      Gabs last edited by

      Bonsoir,

      J’ai créer une entity projectile pour une arme dans mon mod.

      Je rencontre deux problèmes:

      -1) J’arrive pas a augmenté la vitesse du projectile.

      -2) Le projectile décent progressivement une fois tiré (comme la flèche), je voudrais qu’il reste droit comme les fireball.

      Je vous donne la classe de mon entity:

      
package com.CSC.net.Entity;

import java.util.List;

import javax.annotation.Nullable;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.model.ModelBase;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.IProjectile;
import net.minecraft.entity.monster.EntityEnderman;
import net.minecraft.entity.passive.EntityTameable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.entity.projectile.EntityThrowable;
import net.minecraft.init.Blocks;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.network.play.server.SPacketChangeGameState;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EntitySelectors;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.datafix.DataFixer;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.RayTraceResult;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import com.CSC.net.Model.ModelBullet;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;

public class EntityBullet extends EntityThrowable
{
private int randomTilt;
private boolean onfire;

public EntityBullet(World world)
    {
        super(world);
        randomTilt = rand.nextInt(360);
        this.onfire = false;
        this.setSize(0.1F, 0.1F);
    }

    public EntityBullet(World world, EntityLivingBase entity)
    {
        super(world, entity);
        randomTilt = rand.nextInt(360);
        this.onfire = false;
        this.setSprinting(true);
        this.setSize(0.1F, 0.1F);
    }

    public EntityBullet(World world, double x, double y, double z, double a, double b, double c)
    {
        super(world, x, y, z);
        randomTilt = rand.nextInt(360);
        this.onfire = false;
        this.setSize(0.1F, 0.1F);
    }

    public void setOnFire(boolean val)
    {
    this.onfire = val;
    }

    public boolean getOnFire()
    {
    return this.onfire;
    }

    public int getRandomTilt()
    {
    return randomTilt;
    }

    public void setRandomTilt(int angle)
    {
    randomTilt = angle;
    }

    private void InflictDamage(RayTraceResult movingobjectPos)
    {
    movingobjectPos.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), 2);
    if(this.getOnFire())
    {    
    movingobjectPos.entityHit.setFire(3);
    }
    }

    private void DestroySelf()
    {
this.worldObj.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D, new int[0]);
this.setDead();
    }

    protected void onImpact(RayTraceResult movingobjectPos)
    {
    if (movingobjectPos.typeOfHit == RayTraceResult.Type.BLOCK)
    {
    Block block = this.worldObj.getBlockState(movingobjectPos.getBlockPos()).getBlock();

    /*if(block == Blocks.GLASS)
       {
    BlockPos blockpos = movingobjectPos.getBlockPos();    
    IBlockState blockstate = this.worldObj.getBlockState(blockpos);
    TileEntity te = this.worldObj.getTileEntity(blockpos);

    if(this.getThrower() instanceof EntityPlayer) // if the thrower is a player
           {
    EntityPlayer player = (EntityPlayer)this.getThrower();
    this.worldObj.destroyBlock(blockpos, false);
        block.harvestBlock(this.worldObj, player, blockpos, blockstate, te, player.getActiveItemStack());   
           }
    else if(this.getThrower() instanceof EntityTameable) // if the thrower is a tameable creature
    {    
    EntityTameable tameableEntity = (EntityTameable)this.getThrower();
        if(tameableEntity != null && tameableEntity.isTamed())
        {
        EntityPlayer player = (EntityPlayer)tameableEntity.getOwner();
        if(player != null)
        {
        this.worldObj.destroyBlock(blockpos, false);
            block.harvestBlock(this.worldObj, player, blockpos, blockstate, te, player.getActiveItemStack());
        }
        }    
    }    
       }*/
    /*else*/ if(block == Blocks.WATER)
    {
    this.worldObj.spawnParticle(EnumParticleTypes.WATER_BUBBLE, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D, new int[0]);
    }
    else
    {
    this.DestroySelf();
    }
    }
    else
    {    
    if (movingobjectPos.entityHit != null)
       {        
    if(this.getThrower() instanceof EntityPlayer) // if the thrower is a player
           {
    this.InflictDamage(movingobjectPos);
           }
           else if(this.getThrower() instanceof EntityTameable) // if the thrower is a tameable creature
           {            
            if(movingobjectPos.entityHit instanceof EntityTameable) // if the hit entity is a tameable
           {
            EntityTameable tameableEntity = (EntityTameable)movingobjectPos.entityHit;
            if(tameableEntity != null && !tameableEntity.isTamed())
            {
            this.InflictDamage(movingobjectPos);
            }
           }
            else if((movingobjectPos.entityHit instanceof EntityPlayer) == false)
            {
            this.InflictDamage(movingobjectPos);
            }            
           }
       }            
       this.DestroySelf();    
    }
    }

    public void setAim(Entity p_184547_1_, float p_184547_2_, float p_184547_3_, float p_184547_4_, float p_184547_5_, float p_184547_6_)
    {
        float f = -MathHelper.sin(p_184547_3_ * 0.017453292F) * MathHelper.cos(p_184547_2_ * 0.017453292F);
        float f1 = -MathHelper.sin(p_184547_2_ * 0.017453292F);
        float f2 = MathHelper.cos(p_184547_3_ * 0.017453292F) * MathHelper.cos(p_184547_2_ * 0.017453292F);
        this.setThrowableHeading((double)f, (double)f1, (double)f2, p_184547_5_, p_184547_6_);
        this.motionX += p_184547_1_.motionX;
        this.motionZ += p_184547_1_.motionZ;

        if (!p_184547_1_.onGround)
        {
            this.motionY += p_184547_1_.motionY;
        }
    }

}

      Merci d’avance !

      1 Reply Last reply Reply Quote 0
      • robin4002
        robin4002 Moddeurs confirmés last edited by

        Salut,
        Pour résoudre tes deux problèmes il faudrait override la fonction onUpdate.

        1 Reply Last reply Reply Quote 0
        • Gabs
          Gabs last edited by

          Salut,

          Quand j’override la fonction onUpdate sans rien ajouter forcément ça change rien.

          J’ai donc pris les codes de la fireball.

          J’ai réussis a augmenté la vitesse de mon entity mais elle tombe toujours comme les flèches, je cherches a faire une entity avec un trajectoire toute droite et pas en “courbe”.

          Je te passe ma classe:

          
package com.CSC.net.Entity;

import java.util.List;

import javax.annotation.Nullable;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.client.model.ModelBase;
import net.minecraft.enchantment.EnchantmentHelper;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.IProjectile;
import net.minecraft.entity.monster.EntityEnderman;
import net.minecraft.entity.passive.EntityTameable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.entity.projectile.EntityThrowable;
import net.minecraft.entity.projectile.ProjectileHelper;
import net.minecraft.init.Blocks;
import net.minecraft.init.SoundEvents;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.network.play.server.SPacketChangeGameState;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EntitySelectors;
import net.minecraft.util.EnumParticleTypes;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.datafix.DataFixer;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.RayTraceResult;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import com.CSC.net.Model.ModelBullet;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;

public class EntityBullet extends EntityThrowable
{
private int randomTilt;
private boolean onfire;
    public EntityLivingBase shootingEntity;
    private int ticksAlive;
    private int ticksInAir;
    private int xTile = -1;
    private int yTile = -1;
    private int zTile = -1;
    public double accelerationX;
    public double accelerationY;
    public double accelerationZ;
    private Block inTile;

public EntityBullet(World world)
    {
        super(world);
        randomTilt = rand.nextInt(360);
        this.onfire = false;
        this.setSize(0.1F, 0.1F);
    }

    public EntityBullet(World world, EntityLivingBase entity, double accelX, double accelY, double accelZ)
    {
        super(world, entity);
        randomTilt = rand.nextInt(360);
        this.onfire = false;
        this.setSprinting(true);
        this.setSize(0.1F, 0.1F);
        this.shootingEntity = entity;
        double d0 = (double)MathHelper.sqrt_double(accelX * accelX + accelY * accelY + accelZ * accelZ);
        this.accelerationX = accelX / d0 * 0.1D;
        this.accelerationY = accelY / d0 * 0.1D;
        this.accelerationZ = accelZ / d0 * 0.1D;
    }

    public EntityBullet(World world, double x, double y, double z, double a, double b, double c)
    {
        super(world, x, y, z);
        randomTilt = rand.nextInt(360);
        this.onfire = false;
        this.setSize(0.1F, 0.1F);
    }

    public void setOnFire(boolean val)
    {
    this.onfire = val;
    }

    public boolean getOnFire()
    {
    return this.onfire;
    }

    public int getRandomTilt()
    {
    return randomTilt;
    }

    public void setRandomTilt(int angle)
    {
    randomTilt = angle;
    }

    private void InflictDamage(RayTraceResult movingobjectPos)
    {
    movingobjectPos.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), 2);
    if(this.getOnFire())
    {    
    movingobjectPos.entityHit.setFire(3);
    }
    }

    private void DestroySelf()
    {
this.worldObj.spawnParticle(EnumParticleTypes.SMOKE_NORMAL, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D, new int[0]);
this.setDead();
    }

    protected void onImpact(RayTraceResult movingobjectPos)
    {
    if (movingobjectPos.typeOfHit == RayTraceResult.Type.BLOCK)
    {
    Block block = this.worldObj.getBlockState(movingobjectPos.getBlockPos()).getBlock();

    /*if(block == Blocks.GLASS)
       {
    BlockPos blockpos = movingobjectPos.getBlockPos();    
    IBlockState blockstate = this.worldObj.getBlockState(blockpos);
    TileEntity te = this.worldObj.getTileEntity(blockpos);

    if(this.getThrower() instanceof EntityPlayer) // if the thrower is a player
           {
    EntityPlayer player = (EntityPlayer)this.getThrower();
    this.worldObj.destroyBlock(blockpos, false);
        block.harvestBlock(this.worldObj, player, blockpos, blockstate, te, player.getActiveItemStack());   
           }
    else if(this.getThrower() instanceof EntityTameable) // if the thrower is a tameable creature
    {    
    EntityTameable tameableEntity = (EntityTameable)this.getThrower();
        if(tameableEntity != null && tameableEntity.isTamed())
        {
        EntityPlayer player = (EntityPlayer)tameableEntity.getOwner();
        if(player != null)
        {
        this.worldObj.destroyBlock(blockpos, false);
            block.harvestBlock(this.worldObj, player, blockpos, blockstate, te, player.getActiveItemStack());
        }
        }    
    }    
       }*/
    /*else*/ if(block == Blocks.WATER)
    {
    this.worldObj.spawnParticle(EnumParticleTypes.WATER_BUBBLE, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D, new int[0]);
    }
    else
    {
    this.DestroySelf();
    }
    }
    else
    {    
    if (movingobjectPos.entityHit != null)
       {        
    if(this.getThrower() instanceof EntityPlayer) // if the thrower is a player
           {
    this.InflictDamage(movingobjectPos);
           }
           else if(this.getThrower() instanceof EntityTameable) // if the thrower is a tameable creature
           {            
            if(movingobjectPos.entityHit instanceof EntityTameable) // if the hit entity is a tameable
           {
            EntityTameable tameableEntity = (EntityTameable)movingobjectPos.entityHit;
            if(tameableEntity != null && !tameableEntity.isTamed())
            {
            this.InflictDamage(movingobjectPos);
            }
           }
            else if((movingobjectPos.entityHit instanceof EntityPlayer) == false)
            {
            this.InflictDamage(movingobjectPos);
            }            
           }
       }            
       this.DestroySelf();    
    }
    }

    public void setAim(Entity p_184547_1_, float p_184547_2_, float p_184547_3_, float p_184547_4_, float p_184547_5_, float p_184547_6_)
    {
        float f = -MathHelper.sin(p_184547_3_ * 0.017453292F) * MathHelper.cos(p_184547_2_ * 0.017453292F);
        float f1 = -MathHelper.sin(p_184547_2_ * 0.017453292F);
        float f2 = MathHelper.cos(p_184547_3_ * 0.017453292F) * MathHelper.cos(p_184547_2_ * 0.017453292F);
        this.setThrowableHeading((double)f, (double)f1, (double)f2, p_184547_5_, p_184547_6_);
        this.motionX += p_184547_1_.motionX;
        this.motionZ += p_184547_1_.motionZ;

        if (!p_184547_1_.onGround)
        {
            this.motionY += p_184547_1_.motionY;
        }
    }

    @Override
    public void onUpdate()
    {
    if (this.worldObj.isRemote || (this.shootingEntity == null || !this.shootingEntity.isDead) && this.worldObj.isBlockLoaded(new BlockPos(this)))
        {
            super.onUpdate();
            if (this.inGround)
            {
                if (this.worldObj.getBlockState(new BlockPos(this.xTile, this.yTile, this.zTile)).getBlock() == this.inTile)
                {
                    ++this.ticksAlive;

                    if (this.ticksAlive == 600)
                    {
                        this.setDead();
                    }

                    return;
                }

                this.inGround = false;
                this.motionX *= (double)(this.rand.nextFloat() * 0.2F);
                this.motionY *= (double)(this.rand.nextFloat() * 0.2F);
                this.motionZ *= (double)(this.rand.nextFloat() * 0.2F);
                this.ticksAlive = 0;
            }
            else
            {
                ++this.ticksInAir;
            }

            RayTraceResult raytraceresult = ProjectileHelper.forwardsRaycast(this, true, this.ticksInAir >= 25, this.shootingEntity);

            if (raytraceresult != null)
            {
                this.onImpact(raytraceresult);
            }

            this.posX += this.motionX;
            this.posY += this.motionY;
            this.posZ += this.motionZ;
            ProjectileHelper.rotateTowardsMovement(this, 0.2F);
            float f = this.getMotionFactor();

            if (this.isInWater())
            {
                for (int i = 0; i < 4; ++i)
                {
                    float f1 = 0.25F;
                    this.worldObj.spawnParticle(EnumParticleTypes.WATER_BUBBLE, this.posX - this.motionX * 0.25D, this.posY - this.motionY * 0.25D, this.posZ - this.motionZ * 0.25D, this.motionX, this.motionY, this.motionZ, new int[0]);
                }

                f = 0.8F;
            }

            this.motionX += this.accelerationX;
            this.motionY += this.accelerationY;
            this.motionZ += this.accelerationZ;
            this.motionX *= (double)f;
            this.motionY *= (double)f;
            this.motionZ *= (double)f;
            this.setPosition(this.posX, this.posY, this.posZ);
        }
        else
        {
            this.setDead();
        }
    }

    protected float getMotionFactor()
    {
        return 0.95F;
    }

}
          1 Reply Last reply Reply Quote 0
          • robin4002
            robin4002 Moddeurs confirmés last edited by

            Retires cette ligne :
            this.motionY *= (double)(this.rand.nextFloat() * 0.2F);

            et celle-ci :
            this.motionY += this.accelerationY;

            1 Reply Last reply Reply Quote 1
            • Gabs
              Gabs last edited by

              @‘robin4002’:

              Retires cette ligne :
              this.motionY *= (double)(this.rand.nextFloat() * 0.2F);

              et celle-ci :
              this.motionY += this.accelerationY;

              Ah ouais merci 😄

              1 Reply Last reply Reply Quote 0
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