batch.h

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// SPDX-License-Identifier: Apache-2.0
// Copyright 2025-2026 Arnis Lektauers
//
// Created by Arnis Lektauers on 07.03.2026.
//
//
//
#pragma once
 
#include <memory>
#include <vector>
 
#include "batchGroup.h"
#include "skinBatchInstance.h"
#include "scene/graphNode.h"
#include "scene/mesh.h"
#include "scene/meshInstance.h"
#include "core/shape/boundingBox.h"
#include "platform/graphics/indexBuffer.h"
#include "platform/graphics/vertexBuffer.h"
 
namespace visutwin::canvas
{
    class Batch
    {
    public:
        int batchGroupId = BatchGroup::NOID;

        bool dynamic = false;

        std::vector<MeshInstance*> origMeshInstances;

        std::unique_ptr<MeshInstance> meshInstance;

        std::unique_ptr<SkinBatchInstance> skinBatchInstance;

        std::shared_ptr<Mesh> mesh;
        std::shared_ptr<VertexBuffer> vertexBuffer;
        std::shared_ptr<IndexBuffer> indexBuffer;

        GraphNode node;

        void updateBoundingBox()
        {
            if (origMeshInstances.empty() || !meshInstance) return;
            BoundingBox aabb = origMeshInstances[0]->aabb();
            for (size_t i = 1; i < origMeshInstances.size(); ++i) {
                aabb.add(origMeshInstances[i]->aabb());
            }
            meshInstance->setCustomAabb(aabb);
        }
    };
}