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Create a tool with wire look like fish hook


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I believe the RenderFish class does this. You'll see that it takes in the EntityFishHook instance as a parameter and then uses the EntityFishHook#getAngler() method to get the player instance that is fishing and then does a bunch of rendering based on all that. 


So to do a similar thing you have to first realize that the fishing rod item creates a projectile entity called EntityFishingHook. So for your tool you also need something similar to represent the end of whatever you're casting. 


Then you need to make a class like RenderFish which extends Render<EntityFishHook> but instead of EntityFishHook you'd use whatever projectile you created. Then I would mostly copy the code from RenderFish which I believe should draw the line between the entity and the player holding your tool.

Check out my tutorials here: http://jabelarminecraft.blogspot.com/

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  • 2 weeks later...

No that is the way to do it. You need to know the endpoint and the code in RenderFish is the same sort of code you need. Certainly you could write your own code if you're good at rendering but it would end up basically being the same as copying the RenderFish.


I think you need to just figure out what is going wrong. You can go into debug mode or use console print statements in your code to output information to confirm that the code is executing the way you expect.


In any case, people can only help you if you post your code (ideally as a repository on someplace like GitHub). Because these problems are usually just mistakes in your specific code and we have no idea what exactly you wrote for your code.

Check out my tutorials here: http://jabelarminecraft.blogspot.com/

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package net.mymod.entities.render;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.VertexBuffer;
import net.minecraft.client.renderer.entity.Render;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.entity.projectile.EntityFishHook;
import net.minecraft.util.EnumHandSide;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.Vec3d;
import net.mymod.Minecraft_mod;
import net.mymod.entities.EntityHook;

public class RendeHook extends Render<EntityHook>
    private static final ResourceLocation HOOK_PARTICLES = new ResourceLocation(Minecraft_mod.MOD_ID + ":textures/particles/particles.png");

    public RenderHook(RenderManager renderManagerIn)

    public void doRender(EntityHook entity, double x, double y, double z, float entityYaw, float partialTicks)
        GlStateManager.translate((float)x, (float)y, (float)z);
        GlStateManager.scale(0.5F, 0.5F, 0.5F);
        Tessellator tessellator = Tessellator.getInstance();
        VertexBuffer vertexbuffer = tessellator.getBuffer();
        int i = 1;
        int j = 2;
        float f = 0.0625F;
        float f1 = 0.125F;
        float f2 = 0.125F;
        float f3 = 0.1875F;
        float f4 = 1.0F;
        float f5 = 0.5F;
        float f6 = 0.5F;
        GlStateManager.rotate(180.0F - this.renderManager.playerViewY, 0.0F, 1.0F, 0.0F);
        GlStateManager.rotate((float)(this.renderManager.options.thirdPersonView == 2 ? -1 : 1) * -this.renderManager.playerViewX, 1.0F, 0.0F, 0.0F);

        if (this.renderOutlines)

        vertexbuffer.begin(7, DefaultVertexFormats.POSITION_TEX_NORMAL);
        vertexbuffer.pos(-0.5D, -0.5D, 0.0D).tex(0.0625D, 0.1875D).normal(0.0F, 1.0F, 0.0F).endVertex();
        vertexbuffer.pos(0.5D, -0.5D, 0.0D).tex(0.125D, 0.1875D).normal(0.0F, 1.0F, 0.0F).endVertex();
        vertexbuffer.pos(0.5D, 0.5D, 0.0D).tex(0.125D, 0.125D).normal(0.0F, 1.0F, 0.0F).endVertex();
        vertexbuffer.pos(-0.5D, 0.5D, 0.0D).tex(0.0625D, 0.125D).normal(0.0F, 1.0F, 0.0F).endVertex();

        if (this.renderOutlines)


        if (entity.angler != null && !this.renderOutlines)
            int k = entity.angler.getPrimaryHand() == EnumHandSide.RIGHT ? 1 : -1;
            float f7 = entity.angler.getSwingProgress(partialTicks);
            float f8 = MathHelper.sin(MathHelper.sqrt_float(f7) * (float)Math.PI);
            float f9 = (entity.angler.prevRenderYawOffset + (entity.angler.renderYawOffset - entity.angler.prevRenderYawOffset) * partialTicks) * 0.017453292F;
            double d0 = (double)MathHelper.sin(f9);
            double d1 = (double)MathHelper.cos(f9);
            double d2 = (double)k * 0.35D;
            double d3 = 0.8D;
            double d4;
            double d5;
            double d6;
            double d7;

            if ((this.renderManager.options == null || this.renderManager.options.thirdPersonView <= 0) && entity.angler == Minecraft.getMinecraft().thePlayer)
                Vec3d vec3d = new Vec3d((double)k * -0.36D, -0.05D, 0.4D);
                vec3d = vec3d.rotatePitch(-(entity.angler.prevRotationPitch + (entity.angler.rotationPitch - entity.angler.prevRotationPitch) * partialTicks) * 0.017453292F);
                vec3d = vec3d.rotateYaw(-(entity.angler.prevRotationYaw + (entity.angler.rotationYaw - entity.angler.prevRotationYaw) * partialTicks) * 0.017453292F);
                vec3d = vec3d.rotateYaw(f8 * 0.5F);
                vec3d = vec3d.rotatePitch(-f8 * 0.7F);
                d4 = entity.angler.prevPosX + (entity.angler.posX - entity.angler.prevPosX) * (double)partialTicks + vec3d.xCoord;
                d5 = entity.angler.prevPosY + (entity.angler.posY - entity.angler.prevPosY) * (double)partialTicks + vec3d.yCoord;
                d6 = entity.angler.prevPosZ + (entity.angler.posZ - entity.angler.prevPosZ) * (double)partialTicks + vec3d.zCoord;
                d7 = (double)entity.angler.getEyeHeight();
                d4 = entity.angler.prevPosX + (entity.angler.posX - entity.angler.prevPosX) * (double)partialTicks - d1 * d2 - d0 * 0.8D;
                d5 = entity.angler.prevPosY + (double)entity.angler.getEyeHeight() + (entity.angler.posY - entity.angler.prevPosY) * (double)partialTicks - 0.45D;
                d6 = entity.angler.prevPosZ + (entity.angler.posZ - entity.angler.prevPosZ) * (double)partialTicks - d0 * d2 + d1 * 0.8D;
                d7 = entity.angler.isSneaking() ? -0.1875D : 0.0D;

            double d13 = entity.prevPosX + (entity.posX - entity.prevPosX) * (double)partialTicks;
            double d8 = entity.prevPosY + (entity.posY - entity.prevPosY) * (double)partialTicks + 0.25D;
            double d9 = entity.prevPosZ + (entity.posZ - entity.prevPosZ) * (double)partialTicks;
            double d10 = (double)((float)(d4 - d13));
            double d11 = (double)((float)(d5 - d8)) + d7;
            double d12 = (double)((float)(d6 - d9));
            vertexbuffer.begin(3, DefaultVertexFormats.POSITION_COLOR);
            int l = 16;

            for (int i1 = 0; i1 <= 16; ++i1)
                float f10 = (float)i1 / 16.0F;
                vertexbuffer.pos(x + d10 * (double)f10, y + d11 * (double)(f10 * f10 + f10) * 0.5D + 0.25D, z + d12 * (double)f10).color(0, 0, 0, 255).endVertex();

            super.doRender(entity, x, y, z, entityYaw, partialTicks);

    protected ResourceLocation getEntityTexture(EntityHook entity)
        return HOOK_PARTICLES;

Hello, this is my code for the render!

- JM.

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