Need a few (a lot more than few) questions answered

[Raevox]

Hey there Mannie here, recently got into modding Minecraft, already knew a little bit about Java and C++ (just the basic things, class, functions, loops, variables, etc.), got inspired by a few thoughts and decided to code it out. Everything basic seems to be working fine in mod, the recipes, textures, etc., but I needed a little bit of help with some mod-specific "features(?)." And this is where my questions come in:

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Questions About Arrows:

- I haven't been able to find a good arrow-making tutorial, would anybody be kind enough to point me to one or explain to me how to make a custom arrow? (Don't forget I just got started with Forge + Java o_o)

- How would I go about making that arrow interact differently with certain entities? For example, if I shoot a pig with that arrow, it turns into a zombie pigman (without taking any damage), but any other mobs hit by that arrow take some damage and have a poisonous DoT applied to them.

- Would it be possible for me to use that arrow with the vanilla bow, or would I also need to learn how to make a custom bow?

---

 

Questions About Crafting:

- I have an item that acts as a "container" for other items (think water and lava buckets); I want it to be so, that when I craft an item with them, the "container" stays in the crafting area, and doesn't disappear.

- Lastly, I have a recipe in which I use shears to cut a piece of paper into smaller pieces, however, the shears disappear; I would like to go about keeping the shears in the crafting area (like the question above), BUT, I want to decrease the items durability a little. I believe the "Handsaw" in RedPower's MicroBlocks does what I'm looking for.

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Yeah, not really a "few" questions really, but it'll be great if somebody can clear some things up or point me in the right direction. Thanks a lot!

[Raevox]

Well then, I messed around with EntityThrowable, EntitySnowball, ItemSnowball, and RenderArrow, seemed to not have any errors, but nothing happens upon right-click:

 

EntityMyceliumArrow:

 

 

package raevox.doomShrooms.common.entity.projectile;

 

import net.minecraft.entity.EntityLiving;

import net.minecraft.entity.passive.EntityCow;

import net.minecraft.entity.projectile.EntityThrowable;

import net.minecraft.util.DamageSource;

import net.minecraft.util.MovingObjectPosition;

import net.minecraft.world.World;

 

public class EntityMyceliumArrow extends EntityThrowable

{

public EntityMyceliumArrow(World par1World)

{

super(par1World);

}

 

public EntityMyceliumArrow(World par1World, EntityLiving par2EntityLiving)

{

super(par1World, par2EntityLiving);

}

 

public EntityMyceliumArrow(World par1World, double par2, double par4, double par6)

{

super(par1World, par2, par4, par6);

}

 

private final EntityLiving entityliving = new EntityLiving(worldObj)

{

@Override

public int getMaxHealth()

{

return 0;

}

 

protected void onImpact(MovingObjectPosition par1MovingObjectPosition)

{

if (par1MovingObjectPosition.entityHit != null)

{

byte var2 = 2;

 

if (par1MovingObjectPosition.entityHit instanceof EntityCow)

{

setDead();

EntityCow entitycow = new EntityCow(worldObj);

entitycow.setLocationAndAngles(posX, posY, posZ, rotationYaw, rotationPitch);

entitycow.setEntityHealth(getHealth());

entitycow.renderYawOffset = renderYawOffset;

worldObj.spawnEntityInWorld(entitycow);

worldObj.spawnParticle("largeexplode", posX, posY + (double)(height / 2.0F), posZ, 0.0D, 0.0D, 0.0D);

}

 

par1MovingObjectPosition.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(par1MovingObjectPosition.entityHit, getThrower()), var2);

}

 

if (!par1MovingObjectPosition.entityHit.worldObj.isRemote)

        {

par1MovingObjectPosition.entityHit.setDead();

        }

}

};

 

@Override

protected void onImpact(MovingObjectPosition var1)

{}

}

 

 

 

That's the Entity file, most of it is reused from EntitySnowball.

 

---

 

 

 

private final EntityLiving entityliving = new EntityLiving(worldObj)

{

 

...

 

if (par1MovingObjectPosition.entityHit instanceof EntityCow)

{

setDead();

EntityCow entitycow = new EntityCow(worldObj);

entitycow.setLocationAndAngles(posX, posY, posZ, rotationYaw, rotationPitch);

entitycow.setEntityHealth(getHealth());

entitycow.renderYawOffset = renderYawOffset;

worldObj.spawnEntityInWorld(entitycow);

worldObj.spawnParticle("largeexplode", posX, posY + (double)(height / 2.0F), posZ, 0.0D, 0.0D, 0.0D);

}

 

...

 

}

 

 

 

That part is me trying to use methods from both EntityLiving and ItemThrowable (would that lil' hack be the reason why I'm not able to spawn anything?), I tried to reverse the process in which a mooshroom turns into a cow when sheared, however, for that I needed to extend to EntityLiving. Is there a better way to do this?

 

---

 

ItemMyceliumArrow:

 

 

package raevox.doomShrooms.common.item;

 

import raevox.doomShrooms.common.entity.projectile.EntityMyceliumArrow;

import net.minecraft.creativetab.CreativeTabs;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.item.Item;

import net.minecraft.item.ItemStack;

import net.minecraft.world.World;

import cpw.mods.fml.relauncher.Side;

import cpw.mods.fml.relauncher.SideOnly;

 

public class ItemMyceliumArrow extends Item

{

public ItemMyceliumArrow(int par1)

{

super(par1);

setTextureFile("/raevox/doomShrooms/items.png");

setItemName("myceliumArrow");

setCreativeTab(CreativeTabs.tabCombat);

}

 

@SideOnly(Side.CLIENT)

public int getIconFromDamage(int i)

{

return 6;

}

 

    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)

    {

        if (!par3EntityPlayer.capabilities.isCreativeMode)

        {

            --par1ItemStack.stackSize;

        }

 

        par2World.playSoundAtEntity(par3EntityPlayer, "random.bow", 0.5F, 0.4F / (itemRand.nextFloat() * 0.4F + 0.8F));

 

        if (!par2World.isRemote)

        {

            par2World.spawnEntityInWorld(new EntityMyceliumArrow(par2World, par3EntityPlayer));

        }

 

        return par1ItemStack;

    }

}

 

 

 

Just a little Item file with similar onItemRightClick() method as the ItemSnowball.

 

---

 

RenderMyceliumArrow:

 

 

package raevox.doomShrooms.common.renderer.entity;

 

import net.minecraft.client.renderer.Tessellator;

import net.minecraft.client.renderer.entity.Render;

import net.minecraft.entity.Entity;

import net.minecraft.entity.projectile.EntityArrow;

import net.minecraft.util.MathHelper;

 

import org.lwjgl.opengl.GL11;

import org.lwjgl.opengl.GL12;

 

import raevox.doomShrooms.common.entity.projectile.EntityMyceliumArrow;

 

import cpw.mods.fml.relauncher.Side;

import cpw.mods.fml.relauncher.SideOnly;

 

@SideOnly(Side.CLIENT)

public class RenderMyceliumArrow extends Render

{

    public void renderMyceliumArrow(EntityMyceliumArrow par1EntityMyceliumArrow, double par2, double par4, double par6, float par8, float par9)

    {

        this.loadTexture("/raevox/doomShrooms/arrows.png");

        GL11.glPushMatrix();

        GL11.glTranslatef((float)par2, (float)par4, (float)par6);

        GL11.glRotatef(par1EntityMyceliumArrow.prevRotationYaw + (par1EntityMyceliumArrow.rotationYaw - par1EntityMyceliumArrow.prevRotationYaw) * par9 - 90.0F, 0.0F, 1.0F, 0.0F);

        GL11.glRotatef(par1EntityMyceliumArrow.prevRotationPitch + (par1EntityMyceliumArrow.rotationPitch - par1EntityMyceliumArrow.prevRotationPitch) * par9, 0.0F, 0.0F, 1.0F);

        Tessellator var10 = Tessellator.instance;

        byte var11 = 0;

        float var12 = 0.0F;

        float var13 = 0.5F;

        float var14 = (float)(0 + var11 * 10) / 32.0F;

        float var15 = (float)(5 + var11 * 10) / 32.0F;

        float var16 = 0.0F;

        float var17 = 0.15625F;

        float var18 = (float)(5 + var11 * 10) / 32.0F;

        float var19 = (float)(10 + var11 * 10) / 32.0F;

        float var20 = 0.05625F;

        GL11.glEnable(GL12.GL_RESCALE_NORMAL);

        float var21 = (float)par1EntityMyceliumArrow.throwableShake - par9;

 

        if (var21 > 0.0F)

        {

            float var22 = -MathHelper.sin(var21 * 3.0F) * var21;

            GL11.glRotatef(var22, 0.0F, 0.0F, 1.0F);

        }

 

        GL11.glRotatef(45.0F, 1.0F, 0.0F, 0.0F);

        GL11.glScalef(var20, var20, var20);

        GL11.glTranslatef(-4.0F, 0.0F, 0.0F);

        GL11.glNormal3f(var20, 0.0F, 0.0F);

        var10.startDrawingQuads();

        var10.addVertexWithUV(-7.0D, -2.0D, -2.0D, (double)var16, (double)var18);

        var10.addVertexWithUV(-7.0D, -2.0D, 2.0D, (double)var17, (double)var18);

        var10.addVertexWithUV(-7.0D, 2.0D, 2.0D, (double)var17, (double)var19);

        var10.addVertexWithUV(-7.0D, 2.0D, -2.0D, (double)var16, (double)var19);

        var10.draw();

        GL11.glNormal3f(-var20, 0.0F, 0.0F);

        var10.startDrawingQuads();

        var10.addVertexWithUV(-7.0D, 2.0D, -2.0D, (double)var16, (double)var18);

        var10.addVertexWithUV(-7.0D, 2.0D, 2.0D, (double)var17, (double)var18);

        var10.addVertexWithUV(-7.0D, -2.0D, 2.0D, (double)var17, (double)var19);

        var10.addVertexWithUV(-7.0D, -2.0D, -2.0D, (double)var16, (double)var19);

        var10.draw();

 

        for (int var23 = 0; var23 < 4; ++var23)

        {

            GL11.glRotatef(90.0F, 1.0F, 0.0F, 0.0F);

            GL11.glNormal3f(0.0F, 0.0F, var20);

            var10.startDrawingQuads();

            var10.addVertexWithUV(-8.0D, -2.0D, 0.0D, (double)var12, (double)var14);

            var10.addVertexWithUV(8.0D, -2.0D, 0.0D, (double)var13, (double)var14);

            var10.addVertexWithUV(8.0D, 2.0D, 0.0D, (double)var13, (double)var15);

            var10.addVertexWithUV(-8.0D, 2.0D, 0.0D, (double)var12, (double)var15);

            var10.draw();

        }

 

        GL11.glDisable(GL12.GL_RESCALE_NORMAL);

        GL11.glPopMatrix();

    }

 

    /**

    * Actually renders the given argument. This is a synthetic bridge method, always casting down its argument and then

    * handing it off to a worker function which does the actual work. In all probabilty, the class Render is generic

    * (Render<T extends Entity) and this method has signature public void doRender(T entity, double d, double d1,

    * double d2, float f, float f1). But JAD is pre 1.5 so doesn't do that.

    */

    public void doRender(Entity par1Entity, double par2, double par4, double par6, float par8, float par9)

    {

        this.renderMyceliumArrow((EntityMyceliumArrow)par1Entity, par2, par4, par6, par8, par9);

    }

}

 

 

 

Duplicated (and edited) RenderArrow file.

 

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What's in my CommonProxy:

 

public void registerRenders() // Using "proxy.registerRenders();" in my main mod file
{
RenderingRegistry.registerEntityRenderingHandler(EntityMyceliumArrow.class, new RenderMyceliumArrow());
}

 

 

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Whenever I right-click with the item, I hear the bow noise, but no entity appears. Neither do I hear the sound of something jamming itself in a block either, nor do I hear myself pick the entity up.

 

Any help?

Thanks.