82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#pragma once
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#include "../BinaryAsset.h"
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#include "Engine/Core/Collections/Array.h"
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#include "Engine/Graphics/Models/MaterialSlot.h"
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#include "Engine/Streaming/StreamableResource.h"
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/// <summary>
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/// Base class for asset types that can contain a model resource.
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/// </summary>
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API_CLASS(Abstract, NoSpawn) class FLAXENGINE_API ModelBase : public BinaryAsset, public StreamableResource
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{
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DECLARE_ASSET_HEADER(ModelBase);
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protected:
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explicit ModelBase(const SpawnParams& params, const AssetInfo* info, StreamingGroup* group)
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: BinaryAsset(params, info)
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, StreamableResource(group)
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{
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}
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public:
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/// <summary>
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/// The minimum screen size to draw this model (the bottom limit). Used to cull small models. Set to 0 to disable this feature.
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/// </summary>
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API_FIELD() float MinScreenSize = 0.0f;
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/// <summary>
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/// The list of material slots.
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/// </summary>
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API_FIELD(ReadOnly) Array<MaterialSlot> MaterialSlots;
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/// <summary>
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/// Gets the amount of the material slots used by this model asset.
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/// </summary>
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API_PROPERTY() int32 GetMaterialSlotsCount() const
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{
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return MaterialSlots.Count();
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}
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/// <summary>
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/// Resizes the material slots collection. Updates meshes that were using removed slots.
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/// </summary>
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API_FUNCTION() virtual void SetupMaterialSlots(int32 slotsCount)
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{
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CHECK(slotsCount >= 0 && slotsCount < 4096);
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if (!IsVirtual() && WaitForLoaded())
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return;
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ScopeLock lock(Locker);
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const int32 prevCount = MaterialSlots.Count();
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MaterialSlots.Resize(slotsCount, false);
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// Initialize slot names
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for (int32 i = prevCount; i < slotsCount; i++)
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MaterialSlots[i].Name = String::Format(TEXT("Material {0}"), i + 1);
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}
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/// <summary>
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/// Gets the material slot by the name.
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/// </summary>
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/// <param name="name">The slot name.</param>
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/// <returns>The material slot with the given name or null if cannot find it (asset may be not loaded yet).</returns>
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API_FUNCTION() MaterialSlot* GetSlot(const StringView& name)
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{
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MaterialSlot* result = nullptr;
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for (auto& slot : MaterialSlots)
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{
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if (slot.Name == name)
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{
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result = &slot;
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break;
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}
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}
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return result;
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}
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};
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