EnergonRelics/src/main/java/com/thebrokenrail/energonrelics/client/block/entity/render/DefensiveLaserBlockEntityRenderer.java

package com.thebrokenrail.energonrelics.client.block.entity.render;

import com.thebrokenrail.energonrelics.EnergonRelics;
import com.thebrokenrail.energonrelics.block.entity.DefensiveLaserBlockEntity;
import net.minecraft.block.entity.BlockEntity;
import net.minecraft.client.MinecraftClient;
import net.minecraft.client.render.RenderLayer;
import net.minecraft.client.render.VertexConsumer;
import net.minecraft.client.render.VertexConsumerProvider;
import net.minecraft.client.render.block.entity.BlockEntityRenderDispatcher;
import net.minecraft.client.render.model.json.ModelTransformation;
import net.minecraft.client.util.math.MatrixStack;
import net.minecraft.client.util.math.Vector3f;
import net.minecraft.item.ItemStack;
import net.minecraft.util.math.Matrix4f;
import net.minecraft.util.math.Vec3d;

public class DefensiveLaserBlockEntityRenderer extends HighlightBlockEntityRenderer {
    public DefensiveLaserBlockEntityRenderer(BlockEntityRenderDispatcher dispatcher) {
        super(dispatcher);
    }

    @Override
    public void render(BlockEntity entity, float tickDelta, MatrixStack matrices, VertexConsumerProvider vertexConsumers, int light, int overlay) {
        if (entity instanceof DefensiveLaserBlockEntity) {
            matrices.push();
            matrices.translate(0.5d, 0.5d, 0.5d);
            matrices.scale(0.6f, 0.6f, 0.6f);

            DefensiveLaserBlockEntity laser = (DefensiveLaserBlockEntity) entity;

            float yaw = (float) ((laser.rotation.getYaw()) * DefensiveLaserBlockEntity.DEG2RAD);
            if (yaw != 0) {
                matrices.multiply(Vector3f.POSITIVE_Y.getRadialQuaternion(yaw));
            }

            float pitch = (float) ((laser.rotation.getPitch() + 45) * DefensiveLaserBlockEntity.DEG2RAD);
            if (pitch != 0) {
                matrices.multiply(Vector3f.POSITIVE_X.getRadialQuaternion(pitch));
            }

            matrices.multiply(Vector3f.POSITIVE_Y.getDegreesQuaternion(-90));

            MinecraftClient client = MinecraftClient.getInstance();

            client.getItemRenderer().renderItem(new ItemStack(EnergonRelics.Items.DEFENSIVE_LASER_CORE), ModelTransformation.Mode.FIXED, light, overlay, matrices, vertexConsumers);

            matrices.pop();

            if (client.getEntityRenderDispatcher().shouldRenderHitboxes()) {
                matrices.push();

                Matrix4f matrix4f = matrices.peek().getModel();
                Vec3d vec3d = ((DefensiveLaserBlockEntity) entity).rotation.getRayVector().multiply(2d).add(0.5d, 0.5d, 0.5d);
                VertexConsumer vertices = vertexConsumers.getBuffer(RenderLayer.getLines());

                vertices.vertex(matrix4f, 0.5f, 0.5f, 0.5f).color(0, 0, 255, 255).next();
                vertices.vertex(matrix4f, (float) vec3d.getX(), (float) vec3d.getY(), (float) vec3d.getZ()).color(0, 0, 255, 255).next();

                matrices.pop();
            }
        }
        super.render(entity, tickDelta, matrices, vertexConsumers, light, overlay);
    }
}