Code/net/minecraft/client/renderer/entity/LightningBoltRenderer.java

package net.minecraft.client.renderer.entity;

import com.mojang.blaze3d.vertex.PoseStack;
import com.mojang.blaze3d.vertex.VertexConsumer;
import net.minecraft.client.renderer.MultiBufferSource;
import net.minecraft.client.renderer.RenderType;
import net.minecraft.client.renderer.entity.state.LightningBoltRenderState;
import net.minecraft.util.RandomSource;
import net.minecraft.world.entity.LightningBolt;
import net.minecraftforge.api.distmarker.Dist;
import net.minecraftforge.api.distmarker.OnlyIn;
import org.joml.Matrix4f;

@OnlyIn(Dist.CLIENT)
public class LightningBoltRenderer extends EntityRenderer<LightningBolt, LightningBoltRenderState> {
    public LightningBoltRenderer(EntityRendererProvider.Context p_174286_) {
        super(p_174286_);
    }

    public void render(LightningBoltRenderState p_367381_, PoseStack p_115269_, MultiBufferSource p_115270_, int p_115271_) {
        float[] afloat = new float[8];
        float[] afloat1 = new float[8];
        float f = 0.0F;
        float f1 = 0.0F;
        RandomSource randomsource = RandomSource.create(p_367381_.seed);

        for (int i = 7; i >= 0; i--) {
            afloat[i] = f;
            afloat1[i] = f1;
            f += randomsource.nextInt(11) - 5;
            f1 += randomsource.nextInt(11) - 5;
        }

        VertexConsumer vertexconsumer = p_115270_.getBuffer(RenderType.lightning());
        Matrix4f matrix4f = p_115269_.last().pose();

        for (int j = 0; j < 4; j++) {
            RandomSource randomsource1 = RandomSource.create(p_367381_.seed);

            for (int k = 0; k < 3; k++) {
                int l = 7;
                int i1 = 0;
                if (k > 0) {
                    l = 7 - k;
                }

                if (k > 0) {
                    i1 = l - 2;
                }

                float f2 = afloat[l] - f;
                float f3 = afloat1[l] - f1;

                for (int j1 = l; j1 >= i1; j1--) {
                    float f4 = f2;
                    float f5 = f3;
                    if (k == 0) {
                        f2 += randomsource1.nextInt(11) - 5;
                        f3 += randomsource1.nextInt(11) - 5;
                    } else {
                        f2 += randomsource1.nextInt(31) - 15;
                        f3 += randomsource1.nextInt(31) - 15;
                    }

                    float f6 = 0.5F;
                    float f7 = 0.45F;
                    float f8 = 0.45F;
                    float f9 = 0.5F;
                    float f10 = 0.1F + j * 0.2F;
                    if (k == 0) {
                        f10 *= j1 * 0.1F + 1.0F;
                    }

                    float f11 = 0.1F + j * 0.2F;
                    if (k == 0) {
                        f11 *= (j1 - 1.0F) * 0.1F + 1.0F;
                    }

                    quad(matrix4f, vertexconsumer, f2, f3, j1, f4, f5, 0.45F, 0.45F, 0.5F, f10, f11, false, false, true, false);
                    quad(matrix4f, vertexconsumer, f2, f3, j1, f4, f5, 0.45F, 0.45F, 0.5F, f10, f11, true, false, true, true);
                    quad(matrix4f, vertexconsumer, f2, f3, j1, f4, f5, 0.45F, 0.45F, 0.5F, f10, f11, true, true, false, true);
                    quad(matrix4f, vertexconsumer, f2, f3, j1, f4, f5, 0.45F, 0.45F, 0.5F, f10, f11, false, true, false, false);
                }
            }
        }
    }

    private static void quad(
        Matrix4f p_253966_,
        VertexConsumer p_115274_,
        float p_115275_,
        float p_115276_,
        int p_115277_,
        float p_115278_,
        float p_115279_,
        float p_115280_,
        float p_115281_,
        float p_115282_,
        float p_115283_,
        float p_115284_,
        boolean p_115285_,
        boolean p_115286_,
        boolean p_115287_,
        boolean p_115288_
    ) {
        p_115274_.addVertex(p_253966_, p_115275_ + (p_115285_ ? p_115284_ : -p_115284_), p_115277_ * 16, p_115276_ + (p_115286_ ? p_115284_ : -p_115284_))
            .setColor(p_115280_, p_115281_, p_115282_, 0.3F);
        p_115274_.addVertex(p_253966_, p_115278_ + (p_115285_ ? p_115283_ : -p_115283_), (p_115277_ + 1) * 16, p_115279_ + (p_115286_ ? p_115283_ : -p_115283_))
            .setColor(p_115280_, p_115281_, p_115282_, 0.3F);
        p_115274_.addVertex(p_253966_, p_115278_ + (p_115287_ ? p_115283_ : -p_115283_), (p_115277_ + 1) * 16, p_115279_ + (p_115288_ ? p_115283_ : -p_115283_))
            .setColor(p_115280_, p_115281_, p_115282_, 0.3F);
        p_115274_.addVertex(p_253966_, p_115275_ + (p_115287_ ? p_115284_ : -p_115284_), p_115277_ * 16, p_115276_ + (p_115288_ ? p_115284_ : -p_115284_))
            .setColor(p_115280_, p_115281_, p_115282_, 0.3F);
    }

    public LightningBoltRenderState createRenderState() {
        return new LightningBoltRenderState();
    }

    public void extractRenderState(LightningBolt p_364798_, LightningBoltRenderState p_367959_, float p_369027_) {
        super.extractRenderState(p_364798_, p_367959_, p_369027_);
        p_367959_.seed = p_364798_.seed;
    }

    protected boolean affectedByCulling(LightningBolt p_365522_) {
        return false;
    }
}