mirror of
https://github.com/kevinporetti/UnrealImGui.git
synced 2025-11-04 07:33:18 +00:00
77bb73dbce
- Added ImGui Context Manager to create and manage ImGui Context Proxies. - Changed ImGui Context Proxy to dynamically create context and allow pairing with input state. - Changed ImGui Module Manager to create one widget per context. - Changed ImGui Widget to work in different input modes. - Changed ImGui Input State to allow partial reset (only mouse or keyboard).
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
// Distributed under the MIT License (MIT) (see accompanying LICENSE file)
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#pragma once
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#include <Core.h>
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#include <Engine.h>
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// Utilities mapping worlds to indices that we use to identify ImGui contexts.
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// Editor and standalone games have context index 0 while PIE worlds have indices starting from 1 for server and 2+ for
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// clients.
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namespace Utilities
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{
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// Default context index for non PIE worlds.
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static constexpr int32 DEFAULT_CONTEXT_INDEX = 0;
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// Invalid context index for parameters that cannot be resolved to a valid world.
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static constexpr int32 INVALID_CONTEXT_INDEX = -1;
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#if WITH_EDITOR
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template<typename T>
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FORCEINLINE int32 GetWorldContextIndex(const TWeakObjectPtr<T>& Obj)
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{
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return Obj.IsValid() ? GetWorldContextIndex(*Obj.Get()) : INVALID_CONTEXT_INDEX;
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}
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template<typename T>
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FORCEINLINE int32 GetWorldContextIndex(const T* Obj)
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{
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return Obj ? GetWorldContextIndex(*Obj) : INVALID_CONTEXT_INDEX;
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}
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FORCEINLINE int32 GetWorldContextIndex(const FWorldContext& WorldContext)
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{
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// In standalone game (WorldType = Game) we have only one context with index 0 (see DEFAULT_CONTEXT_INDEX).
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// In editor, we keep 0 for editor and use PIEInstance to index worlds. In simulation or standalone single-PIE
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// sessions PIEInstance is 0, but since there is only one world we can change it without causing any conflicts.
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// In single-PIE with dedicated server or multi-PIE sessions worlds have PIEInstance starting from 1 for server
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// and 2+ for clients, what maps directly to our index.
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return WorldContext.WorldType == EWorldType::PIE ? FMath::Max(WorldContext.PIEInstance, 1) : DEFAULT_CONTEXT_INDEX;
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}
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FORCEINLINE int32 GetWorldContextIndex(const UGameInstance& GameInstance)
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{
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return GetWorldContextIndex(GameInstance.GetWorldContext());
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}
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FORCEINLINE int32 GetWorldContextIndex(const UGameViewportClient& GameViewportClient)
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{
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return GetWorldContextIndex(GameViewportClient.GetGameInstance());
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}
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FORCEINLINE int32 GetWorldContextIndex(const UWorld& World)
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{
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return GetWorldContextIndex(World.GetGameInstance());
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}
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#else
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template<typename T>
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constexpr int32 GetWorldContextIndex(const T&)
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{
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// The only option is standalone game with one context.
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return DEFAULT_CONTEXT_INDEX;
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}
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#endif // #if WITH_EDITOR
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}
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