superb-warfare/src/main/java/com/atsuishio/superbwarfare/client/AnimationHelper.java

package com.atsuishio.superbwarfare.client;

import com.atsuishio.superbwarfare.event.ClientEventHandler;
import com.atsuishio.superbwarfare.item.gun.data.GunData;
import com.mojang.blaze3d.vertex.PoseStack;
import com.mojang.blaze3d.vertex.VertexConsumer;
import net.minecraft.client.Minecraft;
import net.minecraft.client.model.PlayerModel;
import net.minecraft.client.model.geom.ModelPart;
import net.minecraft.client.player.AbstractClientPlayer;
import net.minecraft.client.player.LocalPlayer;
import net.minecraft.client.renderer.MultiBufferSource;
import net.minecraft.client.renderer.RenderType;
import net.minecraft.client.renderer.entity.player.PlayerRenderer;
import net.minecraft.client.renderer.texture.OverlayTexture;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.util.Mth;
import net.minecraft.world.item.ItemDisplayContext;
import net.minecraft.world.item.ItemStack;
import software.bernie.geckolib.animation.AnimationProcessor;
import software.bernie.geckolib.cache.object.GeoBone;
import software.bernie.geckolib.util.RenderUtil;

public class AnimationHelper {

    public static void renderPartOverBone(ModelPart model, GeoBone bone, PoseStack stack, VertexConsumer buffer, int packedLightIn, int packedOverlayIn) {
        setupModelFromBone(model, bone);
        model.render(stack, buffer, packedLightIn, packedOverlayIn);
    }

    public static void setupModelFromBone(ModelPart model, GeoBone bone) {
        model.setPos(bone.getPivotX(), bone.getPivotY(), bone.getPivotZ());
        model.xRot = 0.0f;
        model.yRot = 0.0f;
        model.zRot = 0.0f;
    }

    public static void renderPartOverBoneR(ModelPart model, GeoBone bone, PoseStack stack, VertexConsumer buffer, int packedLightIn, int packedOverlayIn) {
        setupModelFromBone(model, bone);
        model.render(stack, buffer, packedLightIn, packedOverlayIn);
    }

    public static void setupModelFromBoneR(ModelPart model, GeoBone bone) {
        model.setPos(bone.getPivotX(), bone.getPivotY(), bone.getPivotZ());
        model.xRot = 0.0f;
        model.yRot = 0.0f;
        model.zRot = 0.0f;
    }

    public static void renderPartOverBone2(ModelPart model, GeoBone bone, PoseStack stack, VertexConsumer buffer, int packedLightIn, int packedOverlayIn) {
        setupModelFromBone2(model, bone);
        model.render(stack, buffer, packedLightIn, packedOverlayIn);
    }

    public static void setupModelFromBone2(ModelPart model, GeoBone bone) {
        model.setPos(bone.getPivotX(), bone.getPivotY() + 7, bone.getPivotZ());
        model.xRot = 0.0f;
        model.yRot = 180 * Mth.DEG_TO_RAD;
        model.zRot = 180 * Mth.DEG_TO_RAD;
    }

    public static void renderPartOverBone2R(ModelPart model, GeoBone bone, PoseStack stack, VertexConsumer buffer, int packedLightIn, int packedOverlayIn) {
        setupModelFromBone2R(model, bone);
        model.render(stack, buffer, packedLightIn, packedOverlayIn);
    }

    public static void setupModelFromBone2R(ModelPart model, GeoBone bone) {
        model.setPos(bone.getPivotX(), bone.getPivotY() + 7, bone.getPivotZ());
        model.xRot = 180 * Mth.DEG_TO_RAD;
        model.yRot = 180 * Mth.DEG_TO_RAD;
        model.zRot = 0;
    }

    public static void handleShellsAnimation(AnimationProcessor<?> animationProcessor, float x, float y) {
        GeoBone shell1 = animationProcessor.getBone("shell1");
        GeoBone shell2 = animationProcessor.getBone("shell2");
        GeoBone shell3 = animationProcessor.getBone("shell3");
        GeoBone shell4 = animationProcessor.getBone("shell4");
        GeoBone shell5 = animationProcessor.getBone("shell5");

        ClientEventHandler.handleShells(x, y, shell1, shell2, shell3, shell4, shell5);
    }

    public static void handleReloadShakeAnimation(ItemStack stack, GeoBone main, GeoBone camera, float roll, float pitch) {
        var data = GunData.from(stack);
        if (data.reload.time() > 0) {
            main.setRotX(roll * main.getRotX());
            main.setRotY(roll * main.getRotY());
            main.setRotZ(roll * main.getRotZ());
            main.setPosX(pitch * main.getPosX());
            main.setPosY(pitch * main.getPosY());
            main.setPosZ(pitch * main.getPosZ());
            camera.setRotX(roll * camera.getRotX());
            camera.setRotY(roll * camera.getRotY());
            camera.setRotZ(roll * camera.getRotZ());
        }
    }

    public static void renderArms(
            Minecraft mc,
            LocalPlayer player,
            ItemDisplayContext transformType,
            PoseStack stack,
            String name,
            GeoBone bone,
            float SCALE_RECIPROCAL,
            MultiBufferSource currentBuffer,
            RenderType renderType,
            int packedLightIn,
            boolean useOldLeftHandRender,
            boolean useOldRightHandRender
    ) {
        if (transformType.firstPerson()) {
            PlayerRenderer playerRenderer = (PlayerRenderer) mc.getEntityRenderDispatcher().getRenderer(player);
            PlayerModel<AbstractClientPlayer> model = playerRenderer.getModel();
            stack.pushPose();
            RenderUtil.translateMatrixToBone(stack, bone);
            RenderUtil.translateToPivotPoint(stack, bone);
            RenderUtil.rotateMatrixAroundBone(stack, bone);
            RenderUtil.scaleMatrixForBone(stack, bone);
            RenderUtil.translateAwayFromPivotPoint(stack, bone);
            ResourceLocation loc = player.getSkin().texture();
            if (name.equals("Lefthand")) {
                stack.translate(-1.0f * SCALE_RECIPROCAL, 2.0f * SCALE_RECIPROCAL, 0.0f);
                if (useOldLeftHandRender) {
                    AnimationHelper.renderPartOverBone(model.leftArm, bone, stack, currentBuffer.getBuffer(RenderType.entitySolid(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                    AnimationHelper.renderPartOverBone(model.leftSleeve, bone, stack, currentBuffer.getBuffer(RenderType.entityTranslucent(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                } else {
                    AnimationHelper.renderPartOverBone2(model.leftArm, bone, stack, currentBuffer.getBuffer(RenderType.entitySolid(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                    AnimationHelper.renderPartOverBone2(model.leftSleeve, bone, stack, currentBuffer.getBuffer(RenderType.entityTranslucent(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                }
            } else {
                stack.translate(SCALE_RECIPROCAL, 2.0f * SCALE_RECIPROCAL, 0.0f);
                if (useOldRightHandRender) {
                    AnimationHelper.renderPartOverBoneR(model.leftArm, bone, stack, currentBuffer.getBuffer(RenderType.entitySolid(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                    AnimationHelper.renderPartOverBoneR(model.leftSleeve, bone, stack, currentBuffer.getBuffer(RenderType.entityTranslucent(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                } else {
                    AnimationHelper.renderPartOverBone2R(model.leftArm, bone, stack, currentBuffer.getBuffer(RenderType.entitySolid(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                    AnimationHelper.renderPartOverBone2R(model.leftSleeve, bone, stack, currentBuffer.getBuffer(RenderType.entityTranslucent(loc)), packedLightIn, OverlayTexture.NO_OVERLAY);
                }
            }
            currentBuffer.getBuffer(renderType);
            stack.popPose();
        }
    }
}