mirror of
https://github.com/Ed94/Cog.git
synced 2026-06-13 08:02:23 -07:00
Arnaud Jamin
680 lines
22 KiB
C++
680 lines
22 KiB
C++
#include "CogEngineWindow_Selection.h"
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#include "CogDebugSettings.h"
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#include "CogEngineReplicator.h"
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#include "CogImguiHelper.h"
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#include "CogImguiInputHelper.h"
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#include "CogWindowManager.h"
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#include "CogWindowWidgets.h"
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#include "Components/PrimitiveComponent.h"
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#include "EngineUtils.h"
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#include "GameFramework/Character.h"
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#include "HAL/IConsoleManager.h"
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#include "imgui.h"
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#include "Kismet/GameplayStatics.h"
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FString FCogEngineWindow_Selection::ToggleSelectionModeCommand = TEXT("Cog.ToggleSelectionMode");
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::Initialize()
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{
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Super::Initialize();
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bHasMenu = true;
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bHasWidget = true;
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ActorClasses = { AActor::StaticClass(), ACharacter::StaticClass() };
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Config = GetConfig<UCogEngineConfig_Selection>();
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ConsoleCommands.Add(IConsoleManager::Get().RegisterConsoleCommand(
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*ToggleSelectionModeCommand,
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TEXT("Toggle the actor selection mode"),
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FConsoleCommandWithArgsDelegate::CreateLambda([this](const TArray<FString>& Args) { ToggleSelectionMode(); }),
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ECVF_Cheat));
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TryReapplySelection();
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::RenderHelp()
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{
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ImGui::Text(
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"This window can be used to select an actor either by picking an actor in the world, "
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"or by selecting an actor in the actor list. "
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"The actor list can be filtered by actor type (Actor, Character, etc). "
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"The current selection is used by various debug windows to filter out their content"
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);
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::Shutdown()
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{
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for (IConsoleObject* ConsoleCommand : ConsoleCommands)
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{
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IConsoleManager::Get().UnregisterConsoleObject(ConsoleCommand);
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}
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::ResetConfig()
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{
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Super::ResetConfig();
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Config->Reset();
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::PreSaveConfig()
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{
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Super::PreSaveConfig();
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Config->SelectionName = GetNameSafe(GetSelection());
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::TryReapplySelection() const
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{
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UWorld* World = GetWorld();
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if (World == nullptr)
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{
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return;
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}
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if (Config->bReapplySelection == false)
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{
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return;
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}
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if (Config->SelectionName.IsEmpty())
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{
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return;
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}
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TSubclassOf<AActor> SelectedClass = GetSelectedActorClass();
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if (SelectedClass == nullptr)
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{
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return;
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}
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TArray<AActor*> Actors;
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for (TActorIterator<AActor> It(World, SelectedClass); It; ++It)
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{
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AActor* Actor = *It;
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if (GetNameSafe(Actor) == Config->SelectionName)
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{
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SetGlobalSelection(Actor);
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}
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}
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}
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//--------------------------------------------------------------------------------------------------------------------------
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TSubclassOf<AActor> FCogEngineWindow_Selection::GetSelectedActorClass() const
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{
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TSubclassOf<AActor> SelectedClass = AActor::StaticClass();
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if (ActorClasses.IsValidIndex(Config->SelectedClassIndex))
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{
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SelectedClass = ActorClasses[Config->SelectedClassIndex];
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}
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return SelectedClass;
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::ToggleSelectionMode()
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{
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if (bSelectionModeActive)
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{
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DeactivateSelectionMode();
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}
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else
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{
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ActivateSelectionMode();
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}
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::ActivateSelectionMode()
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{
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bSelectionModeActive = true;
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bIsInputEnabledBeforeEnteringSelectionMode = GetOwner()->GetContext().GetEnableInput();
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GetOwner()->GetContext().SetEnableInput(true);
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GetOwner()->SetHideAllWindows(true);
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::HackWaitInputRelease()
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{
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WaitInputReleased = 1;
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::DeactivateSelectionMode()
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{
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bSelectionModeActive = false;
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//--------------------------------------------------------------------------------------------
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// We can enter selection mode by a command, and imgui might not have the input focus
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// When in selection mode we need imgui to have the input focus
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// When leaving selection mode we want to leave it as is was before
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//--------------------------------------------------------------------------------------------
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GetOwner()->GetContext().SetEnableInput(bIsInputEnabledBeforeEnteringSelectionMode);
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GetOwner()->SetHideAllWindows(false);
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::RenderTick(float DeltaTime)
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{
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Super::RenderTick(DeltaTime);
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if (FCogDebugSettings::GetSelection() == nullptr)
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{
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SetGlobalSelection(GetLocalPlayerPawn());
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}
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if (bSelectionModeActive)
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{
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TickSelectionMode();
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}
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if (AActor* Actor = GetSelection())
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{
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if (Actor != GetLocalPlayerPawn())
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{
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DrawActorFrame(*Actor);
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}
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}
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::RenderContent()
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{
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Super::RenderContent();
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if (ImGui::BeginMenuBar())
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{
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if (ImGui::MenuItem("Pick"))
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{
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ActivateSelectionMode();
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HackWaitInputRelease();
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}
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RenderPickButtonTooltip();
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ImGui::EndMenuBar();
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}
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DrawSelectionCombo();
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}
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//--------------------------------------------------------------------------------------------------------------------------
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bool FCogEngineWindow_Selection::DrawSelectionCombo()
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{
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bool SelectionChanged = false;
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APawn* LocalPlayerPawn = GetLocalPlayerPawn();
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//------------------------
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// Actor Class Combo
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//------------------------
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TSubclassOf<AActor> SelectedClass = GetSelectedActorClass();
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ImGui::SetNextItemWidth(-1);
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if (ImGui::BeginCombo("##SelectionType", TCHAR_TO_ANSI(*GetNameSafe(SelectedClass))))
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{
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for (int32 i = 0; i < ActorClasses.Num(); ++i)
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{
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TSubclassOf<AActor> SubClass = ActorClasses[i];
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if (ImGui::Selectable(TCHAR_TO_ANSI(*GetNameSafe(SubClass)), false))
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{
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Config->SelectedClassIndex = i;
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SelectedClass = SubClass;
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}
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}
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ImGui::EndCombo();
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}
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ImGui::Separator();
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//------------------------
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// Actor List
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//------------------------
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ImGui::BeginChild("ActorList", ImVec2(-1, -1), false);
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TArray<AActor*> Actors;
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for (TActorIterator<AActor> It(GetWorld(), SelectedClass); It; ++It)
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{
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AActor* Actor = *It;
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Actors.Add(Actor);
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}
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ImGuiListClipper Clipper;
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Clipper.Begin(Actors.Num());
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while (Clipper.Step())
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{
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for (int32 i = Clipper.DisplayStart; i < Clipper.DisplayEnd; i++)
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{
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AActor* Actor = Actors[i];
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if (Actor == nullptr)
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{
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continue;
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}
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ImGui::PushStyleColor(ImGuiCol_Text, Actor == LocalPlayerPawn ? IM_COL32(255, 255, 0, 255) : IM_COL32(255, 255, 255, 255));
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bool bIsSelected = Actor == FCogDebugSettings::GetSelection();
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if (ImGui::Selectable(TCHAR_TO_ANSI(*GetActorName(*Actor)), bIsSelected))
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{
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SetGlobalSelection(Actor);
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SelectionChanged = true;
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}
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ImGui::PopStyleColor(1);
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DrawActorContextMenu(Actor);
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//------------------------
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// Draw Frame
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//------------------------
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if (ImGui::IsItemHovered())
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{
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DrawActorFrame(*Actor);
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}
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if (bIsSelected)
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{
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ImGui::SetItemDefaultFocus();
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}
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}
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}
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Clipper.End();
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ImGui::EndChild();
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return SelectionChanged;
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}
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//--------------------------------------------------------------------------------------------------------------------------
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FString FCogEngineWindow_Selection::GetActorName(const AActor* Actor) const
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{
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if (Actor == nullptr)
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{
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return FString("none");
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}
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return GetActorName(*Actor);
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}
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//--------------------------------------------------------------------------------------------------------------------------
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FString FCogEngineWindow_Selection::GetActorName(const AActor& Actor) const
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{
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#if WITH_EDITOR
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return Config->bDisplayActorLabel ? Actor.GetActorLabel() : Actor.GetName();
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#else //WITH_EDITOR
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return Actor.GetName();
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#endif //WITH_EDITOR
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::DrawActorContextMenu(AActor* Actor)
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{
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//------------------------
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// ContextMenu
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//------------------------
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ImGui::SetNextWindowSize(ImVec2(FCogWindowWidgets::GetFontWidth() * 30, 0));
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if (ImGui::BeginPopupContextItem())
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{
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if (ImGui::Button("Reset Selection", ImVec2(-1, 0)))
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{
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ImGui::CloseCurrentPopup();
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SetGlobalSelection(GetLocalPlayerPawn());
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}
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if (ImGui::IsItemHovered())
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{
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ImGui::SetTooltip("Reset the selection to the controlled actor.");
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}
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if (APawn* Pawn = Cast<APawn>(Actor))
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{
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if (ImGui::Button("Possess", ImVec2(-1, 0)))
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{
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if (ACogEngineReplicator* Replicator = ACogEngineReplicator::GetLocalReplicator(*GetWorld()))
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{
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Replicator->Server_Possess(Pawn);
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}
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}
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if (ImGui::IsItemHovered())
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{
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ImGui::SetTooltip("Possess this pawn.");
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}
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if (ImGui::Button("Reset Possession", ImVec2(-1, 0)))
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{
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if (ACogEngineReplicator* Replicator = ACogEngineReplicator::GetLocalReplicator(*GetWorld()))
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{
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Replicator->Server_ResetPossession();
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}
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}
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if (ImGui::IsItemHovered())
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{
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ImGui::SetTooltip("Reset pawn.");
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}
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}
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ImGui::Separator();
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ImGui::Checkbox("Save selection", &Config->bReapplySelection);
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ImGui::Checkbox("Display Actor Label", &Config->bDisplayActorLabel);
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ImGui::EndPopup();
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}
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::TickSelectionMode()
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{
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if (ImGui::IsMouseClicked(ImGuiMouseButton_Right))
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{
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DeactivateSelectionMode();
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return;
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}
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APlayerController* PlayerController = GetLocalPlayerController();
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if (PlayerController == nullptr)
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{
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DeactivateSelectionMode();
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return;
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}
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ImGuiViewport* Viewport = ImGui::GetMainViewport();
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if (Viewport == nullptr)
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{
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return;
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}
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const ImVec2 ViewportPos = Viewport->Pos;
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const ImVec2 ViewportSize = Viewport->Size;
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ImDrawList* DrawList = ImGui::GetBackgroundDrawList(Viewport);
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DrawList->AddRect(ViewportPos, ViewportPos + ViewportSize, IM_COL32(255, 0, 0, 128), 0.0f, 0, 20.0f);
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FCogWindowWidgets::AddTextWithShadow(DrawList, ViewportPos + ImVec2(20, 20), IM_COL32(255, 255, 255, 255), "Picking Mode. \n[LMB] Pick \n[RMB] Cancel");
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TSubclassOf<AActor> SelectedActorClass = GetSelectedActorClass();
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AActor* HoveredActor = nullptr;
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FVector WorldOrigin, WorldDirection;
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if (UGameplayStatics::DeprojectScreenToWorld(PlayerController, FCogImguiHelper::ToFVector2D(ImGui::GetMousePos() - ViewportPos), WorldOrigin, WorldDirection))
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{
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//--------------------------------------------------------------------------------------------------------
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// Prioritize another actor than the selected actor unless we only touch the selected actor.
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//--------------------------------------------------------------------------------------------------------
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TArray<AActor*> IgnoreList;
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IgnoreList.Add(FCogDebugSettings::GetSelection());
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FHitResult HitResult;
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for (int i = 0; i < 2; ++i)
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{
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if (UKismetSystemLibrary::LineTraceSingle(GetWorld(), WorldOrigin, WorldOrigin + WorldDirection * 10000, TraceType, false, IgnoreList, EDrawDebugTrace::None, HitResult, true))
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{
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if (SelectedActorClass == nullptr || HitResult.GetActor()->GetClass()->IsChildOf(SelectedActorClass))
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{
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HoveredActor = HitResult.GetActor();
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break;
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}
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//------------------------------------------------
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// The second time we accept the selected actor
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//------------------------------------------------
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IgnoreList.Empty();
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}
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}
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}
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if (HoveredActor != nullptr)
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{
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DrawActorFrame(*HoveredActor);
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}
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if (bSelectionModeActive)
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{
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if (ImGui::IsMouseReleased(ImGuiMouseButton_Left))
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{
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if (WaitInputReleased == 0)
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{
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if (HoveredActor != nullptr)
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{
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SetGlobalSelection(HoveredActor);
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}
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DeactivateSelectionMode();
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}
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else
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{
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WaitInputReleased--;
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}
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}
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}
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void FCogEngineWindow_Selection::DrawActorFrame(const AActor& Actor)
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{
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APlayerController* PlayerController = GetWorld()->GetFirstPlayerController();
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if (PlayerController == nullptr)
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{
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return;
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}
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ImGuiViewport* Viewport = ImGui::GetMainViewport();
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if (Viewport == nullptr)
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{
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return;
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}
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ImDrawList* DrawList = ImGui::GetBackgroundDrawList(Viewport);
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FVector BoxOrigin, BoxExtent;
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bool PrimitiveFound = false;
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FBox Bounds(ForceInit);
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if (const UPrimitiveComponent* PrimitiveComponent = Cast<UPrimitiveComponent>(Actor.GetRootComponent()))
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{
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PrimitiveFound = true;
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Bounds += PrimitiveComponent->Bounds.GetBox();
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}
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else
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{
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Actor.ForEachComponent<UPrimitiveComponent>(true, [&](const UPrimitiveComponent* InPrimComp)
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{
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if (InPrimComp->IsRegistered() && InPrimComp->IsCollisionEnabled())
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{
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Bounds += InPrimComp->Bounds.GetBox();
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PrimitiveFound = true;
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}
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});
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}
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if (PrimitiveFound)
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{
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Bounds.GetCenterAndExtents(BoxOrigin, BoxExtent);
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}
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else
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{
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BoxOrigin = Actor.GetActorLocation();
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BoxExtent = FVector(50.f, 50.f, 50.f);
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}
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FVector2D ScreenPosMin, ScreenPosMax;
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if (ComputeBoundingBoxScreenPosition(PlayerController, BoxOrigin, BoxExtent, ScreenPosMin, ScreenPosMax))
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{
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const ImU32 Color = (&Actor == GetSelection()) ? IM_COL32(255, 255, 255, 255) : IM_COL32(255, 255, 255, 128);
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DrawList->AddRect(FCogImguiHelper::ToImVec2(ScreenPosMin) + Viewport->Pos, FCogImguiHelper::ToImVec2(ScreenPosMax) + Viewport->Pos, Color, 0.0f, 0, 1.0f);
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FCogWindowWidgets::AddTextWithShadow(DrawList, FCogImguiHelper::ToImVec2(ScreenPosMin + FVector2D(0, -14.0f)) + Viewport->Pos, Color, TCHAR_TO_ANSI(*GetActorName(Actor)));
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}
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}
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//-----------------------------------------------------------------------------------------
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bool FCogEngineWindow_Selection::ComputeBoundingBoxScreenPosition(const APlayerController* PlayerController, const FVector& Origin, const FVector& Extent, FVector2D& Min, FVector2D& Max)
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{
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FVector Corners[8];
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Corners[0].Set(-Extent.X, -Extent.Y, -Extent.Z); // - - -
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Corners[1].Set(Extent.X, -Extent.Y, -Extent.Z); // + - -
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Corners[2].Set(-Extent.X, Extent.Y, -Extent.Z); // - + -
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Corners[3].Set(-Extent.X, -Extent.Y, Extent.Z); // - - +
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Corners[4].Set(Extent.X, Extent.Y, -Extent.Z); // + + -
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Corners[5].Set(Extent.X, -Extent.Y, Extent.Z); // + - +
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Corners[6].Set(-Extent.X, Extent.Y, Extent.Z); // - + +
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Corners[7].Set(Extent.X, Extent.Y, Extent.Z); // + + +
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Min.X = FLT_MAX;
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Min.Y = FLT_MAX;
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Max.X = -FLT_MAX;
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Max.Y = -FLT_MAX;
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for (int i = 0; i < 8; ++i)
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{
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FVector2D ScreenLocation;
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if (PlayerController->ProjectWorldLocationToScreen(Origin + Corners[i], ScreenLocation, false) == false)
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{
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return false;
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}
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Min.X = FMath::Min(ScreenLocation.X, Min.X);
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Min.Y = FMath::Min(ScreenLocation.Y, Min.Y);
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Max.X = FMath::Max(ScreenLocation.X, Max.X);
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Max.Y = FMath::Max(ScreenLocation.Y, Max.Y);
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}
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// Prevent getting large values when the camera get close to the target
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ImVec2 DisplaySize = ImGui::GetIO().DisplaySize;
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Min.X = FMath::Max(-DisplaySize.x, Min.X);
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Min.Y = FMath::Max(-DisplaySize.y, Min.Y);
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Max.X = FMath::Min(DisplaySize.x * 2, Max.X);
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Max.Y = FMath::Min(DisplaySize.y * 2, Max.Y);
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return true;
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}
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//--------------------------------------------------------------------------------------------------------------------------
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float FCogEngineWindow_Selection::GetMainMenuWidgetWidth(int32 SubWidgetIndex, float MaxWidth)
|
|
{
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|
switch (SubWidgetIndex)
|
|
{
|
|
case 0: return FCogWindowWidgets::GetFontWidth() * 6;
|
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case 1: return FMath::Min(FMath::Max(MaxWidth, FCogWindowWidgets::GetFontWidth() * 10), FCogWindowWidgets::GetFontWidth() * 30);
|
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case 2: return FCogWindowWidgets::GetFontWidth() * 3;
|
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}
|
|
|
|
return -1.0f;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------------------------------------------
|
|
void FCogEngineWindow_Selection::RenderMainMenuWidget(int32 SubWidgetIndex, float Width)
|
|
{
|
|
//-----------------------------------
|
|
// Pick Button
|
|
//-----------------------------------
|
|
if (SubWidgetIndex == 0)
|
|
{
|
|
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, 0.0f));
|
|
ImGui::PushStyleVar(ImGuiStyleVar_FrameBorderSize, 1.0f);
|
|
ImGui::PushStyleColor(ImGuiCol_Button, IM_COL32(0, 0, 0, 0));
|
|
|
|
if (ImGui::Button("Pick", ImVec2(Width, 0)))
|
|
{
|
|
ActivateSelectionMode();
|
|
HackWaitInputRelease();
|
|
}
|
|
RenderPickButtonTooltip();
|
|
|
|
ImGui::PopStyleColor(1);
|
|
ImGui::PopStyleVar(2);
|
|
}
|
|
else if (SubWidgetIndex == 1)
|
|
{
|
|
if (ImGui::BeginPopup("SelectionPopup"))
|
|
{
|
|
ImGui::BeginChild("Popup", ImVec2(Width, FCogWindowWidgets::GetFontWidth() * 40), false);
|
|
|
|
if (DrawSelectionCombo())
|
|
{
|
|
ImGui::CloseCurrentPopup();
|
|
}
|
|
|
|
ImGui::EndChild();
|
|
ImGui::EndPopup();
|
|
}
|
|
|
|
AActor* GlobalSelection = FCogDebugSettings::GetSelection();
|
|
|
|
//-----------------------------------
|
|
// Selection
|
|
//-----------------------------------
|
|
{
|
|
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, 0.0f));
|
|
ImGui::PushStyleVar(ImGuiStyleVar_ButtonTextAlign, ImVec2(0.0f, 0.5f));
|
|
ImGui::PushStyleColor(ImGuiCol_Button, IM_COL32(0, 0, 0, 0));
|
|
FString CurrentSelectionName = GetActorName(GlobalSelection);
|
|
|
|
if (ImGui::Button(TCHAR_TO_ANSI(*CurrentSelectionName), ImVec2(Width, 0.0f)))
|
|
{
|
|
ImGui::OpenPopup("SelectionPopup");
|
|
}
|
|
if (ImGui::IsItemHovered())
|
|
{
|
|
ImGui::SetTooltip("Current Selection: %s", TCHAR_TO_ANSI(*CurrentSelectionName));
|
|
}
|
|
|
|
ImGui::PopStyleColor(1);
|
|
ImGui::PopStyleVar(2);
|
|
|
|
DrawActorContextMenu(GlobalSelection);
|
|
}
|
|
}
|
|
else if (SubWidgetIndex == 2)
|
|
{
|
|
//-----------------------------------
|
|
// Reset Button
|
|
//-----------------------------------
|
|
{
|
|
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0.0f, 0.0f));
|
|
ImGui::PushStyleColor(ImGuiCol_Button, IM_COL32(0, 0, 0, 0));
|
|
if (ImGui::Button("X", ImVec2(Width, 0)))
|
|
{
|
|
SetGlobalSelection(nullptr);
|
|
ImGui::CloseCurrentPopup();
|
|
}
|
|
if (ImGui::IsItemHovered())
|
|
{
|
|
ImGui::SetTooltip("Reset the selection to the controlled actor.");
|
|
}
|
|
ImGui::PopStyleColor(1);
|
|
ImGui::PopStyleVar(1);
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------------------------------
|
|
void FCogEngineWindow_Selection::SetGlobalSelection(AActor* Value) const
|
|
{
|
|
FCogDebugSettings::SetSelection(GetWorld(), Value);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------------------------------
|
|
void FCogEngineWindow_Selection::RenderPickButtonTooltip()
|
|
{
|
|
if (ImGui::IsItemHovered(ImGuiHoveredFlags_Stationary))
|
|
{
|
|
const FString Shortcut = FCogImguiInputHelper::CommandToString(*GetWorld(), ToggleSelectionModeCommand);
|
|
ImGui::SetTooltip("Enter picking mode to pick an actor on screen. %s", TCHAR_TO_ANSI(*Shortcut));
|
|
}
|
|
} |