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// Copyright 2025 https://yuewu.dev/en All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "GGA_AbilityTargetActor_Trace.h"
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#include "DrawDebugHelpers.h"
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#include "Engine/CollisionProfile.h"
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#include "GGA_AbilityTargetActor_LineTrace.generated.h"
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/**
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* 可重用、配置的线形检测目标捕获Actor。
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* 与UGAT_WaitTargetDataUsingActor配合使用。
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*/
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UCLASS()
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class GENERICGAMEPLAYABILITIES_API AGGA_AbilityTargetActor_LineTrace : public AGGA_AbilityTargetActor_Trace
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{
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GENERATED_BODY()
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public:
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AGGA_AbilityTargetActor_LineTrace();
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/**
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* Configure the TargetActor for use. This TargetActor could be used in multiple abilities and there's no guarantee
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* what state it will be in. You will need to make sure that only one ability is using this TargetActor at a time.
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*
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* @param InStartLocation Location to trace from.
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* @param InAimingTag Optional. Predicted GameplayTag for aiming. Only used if we mofify spread while aiming. If used,
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* must set InAimingRemovalTag also.
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* @param InAimingRemovalTag Optional. Predicted GameplayTag for aiming removal. Only used if we mofify spread while
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* aiming. If used, must set InAimingTag also.
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* @param InTraceProfile Collision profile to use for tracing.
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* @param InFilter Hit Actors must pass this filter to be returned in the TargetData.
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* @param InReticleClass Reticle that will appear on top of acquired targets. Reticles will be spawned/despawned as targets are acquired/lost.
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* @param InReticleParams Parameters for world reticle. Usage of these parameters is dependent on the reticle.
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* @param bInIgnoreBlockingHits Ignore blocking collision hits in the trace. Useful if you want to target through walls.
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* @param bInShouldProduceTargetDataOnServer If set, this TargetActor will produce TargetData on the Server in addition
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* to the client and the client will just send a generic "Confirm" event to the server. If false, the client will send
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* the TargetData to the Server. This is handled by the WaitTargetDataUsingActor AbilityTask.
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* @param bInUsePersistentHitResults Should HitResults persist while targeting? HitResults are cleared on Confirm/Cancel or
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* when new HitResults take their place.
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* @param bInDebug When true, this TargetActor will show debug lines of the trace and hit results.
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* @param bInTraceAffectsAimPitch Does the trace affect the aiming pitch?
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* @param bInTraceFromPlayerViewPoint Should we trace from the player ViewPoint instead of the StartLocation? The
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* TargetData HitResults will still have the StartLocation for the TraceStart. This is useful for FPS where we want
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* to trace from the player ViewPoint but draw the bullet tracer from the weapon muzzle.
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* TODO: AI Controllers should fall back to muzzle location. Not implemented yet.
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* @param bInUseAImingSpreadMod Should we modify spread based on if we're aiming? If true, must set InAimingTag and
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* InAimingRemovalTag.
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* @param InMaxRange Max range for this trace.
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* @param InBaseSpread Base targeting spread in degrees.
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* @param InAimingSpreadMod Optional. Multiplicative modifier to spread if aiming.
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* @param InTargetingSpreadIncrement Amount spread increments from continuous targeting in degrees.
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* @param InTargetingSpreadMax Maximum amount of spread for continuous targeting in degrees.
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* @param InMaxHitResultsPerTrace Max hit results that a trace can return. < 1 just returns the trace end point.
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* @param InNumberOfTraces Number of traces to perform. Intended to be used with BaseSpread for multi-shot weapons
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* like shotguns. Not intended to be used with PersistentHitsResults. If using PersistentHitResults, NumberOfTraces is
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* hardcoded to 1. You will need to add support for this in your project if you need it.
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*/
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UFUNCTION(BlueprintCallable, Category = "GGA|TargetActor")
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void Configure(
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UPARAM(DisplayName = "Start Location") const FGameplayAbilityTargetingLocationInfo& InStartLocation,
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UPARAM(DisplayName = "Aiming Tag") FGameplayTag InAimingTag,
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UPARAM(DisplayName = "Aiming Removal Tag") FGameplayTag InAimingRemovalTag,
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UPARAM(DisplayName = "Trace Profile") FCollisionProfileName InTraceProfile,
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UPARAM(DisplayName = "Filter") FGameplayTargetDataFilterHandle InFilter,
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UPARAM(DisplayName = "Reticle Class") TSubclassOf<AGameplayAbilityWorldReticle> InReticleClass,
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UPARAM(DisplayName = "Reticle Params") FWorldReticleParameters InReticleParams,
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UPARAM(DisplayName = "Ignore Blocking Hits") bool bInIgnoreBlockingHits = false,
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UPARAM(DisplayName = "Should Produce Target Data on Server") bool bInShouldProduceTargetDataOnServer = false,
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UPARAM(DisplayName = "Use Persistent Hit Results") bool bInUsePersistentHitResults = false,
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UPARAM(DisplayName = "Debug") bool bInDebug = false,
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UPARAM(DisplayName = "Trace Affects Aim Pitch") bool bInTraceAffectsAimPitch = true,
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UPARAM(DisplayName = "Trace From Player ViewPoint") bool bInTraceFromPlayerViewPoint = false,
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UPARAM(DisplayName = "Use Aiming Spread Mod") bool bInUseAimingSpreadMod = false,
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UPARAM(DisplayName = "Max Range") float InMaxRange = 999999.0f,
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UPARAM(DisplayName = "Base Targeting Spread") float InBaseSpread = 0.0f,
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UPARAM(DisplayName = "Aiming Spread Mod") float InAimingSpreadMod = 0.0f,
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UPARAM(DisplayName = "Targeting Spread Increment") float InTargetingSpreadIncrement = 0.0f,
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UPARAM(DisplayName = "Targeting Spread Max") float InTargetingSpreadMax = 0.0f,
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UPARAM(DisplayName = "Max Hit Results Per Trace") int32 InMaxHitResultsPerTrace = 1,
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UPARAM(DisplayName = "Number of Traces") int32 InNumberOfTraces = 1
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);
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protected:
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virtual void DoTrace(TArray<FHitResult>& HitResults, const UWorld* World, const FGameplayTargetDataFilterHandle FilterHandle, const FVector& Start, const FVector& End, FName ProfileName,
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const FCollisionQueryParams Params) override;
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virtual void ShowDebugTrace(TArray<FHitResult>& HitResults, EDrawDebugTrace::Type DrawDebugType, float Duration = 2.0f) override;
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#if ENABLE_DRAW_DEBUG
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// Util for drawing result of multi line trace from KismetTraceUtils.h
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void DrawDebugLineTraceMulti(const UWorld* World, const FVector& Start, const FVector& End, EDrawDebugTrace::Type DrawDebugType, bool bHit, const TArray<FHitResult>& OutHits,
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FLinearColor TraceColor, FLinearColor TraceHitColor, float DrawTime);
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#endif // ENABLE_DRAW_DEBUG
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};
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// Copyright 2025 https://yuewu.dev/en All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "GGA_AbilityTargetActor_Trace.h"
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#include "DrawDebugHelpers.h"
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#include "GGA_AbilityTargetActor_SphereTrace.generated.h"
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/**
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* 可重用、配置的球形检测目标捕获Actor。
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* 与UETA_WaitTargetDataUsingActor配合使用。
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*/
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UCLASS()
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class GENERICGAMEPLAYABILITIES_API AGGA_AbilityTargetActor_SphereTrace : public AGGA_AbilityTargetActor_Trace
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{
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GENERATED_BODY()
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public:
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AGGA_AbilityTargetActor_SphereTrace();
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/**球形检测半径*/
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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float TraceSphereRadius;
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/**
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* Configure the TargetActor for use. This TargetActor could be used in multiple abilities and there's no guarantee
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* what state it will be in. You will need to make sure that only one ability is using this TargetActor at a time.
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*
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* @param InStartLocation Location to trace from.
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* @param InAimingTag Optional. Predicted GameplayTag for aiming. Only used if we mofify spread while aiming. If used,
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* must set InAimingRemovalTag also.
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* @param InAimingRemovalTag Optional. Predicted GameplayTag for aiming removal. Only used if we mofify spread while
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* aiming. If used, must set InAimingTag also.
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* @param InTraceProfile Collision profile to use for tracing.
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* @param InFilter Hit Actors must pass this filter to be returned in the TargetData.
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* @param InReticleClass Reticle that will appear on top of acquired targets. Reticles will be spawned/despawned as targets are acquired/lost.
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* @param InReticleParams Parameters for world reticle. Usage of these parameters is dependent on the reticle.
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* @param bInIgnoreBlockingHits Ignore blocking collision hits in the trace. Useful if you want to target through walls.
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* @param bInShouldProduceTargetDataOnServer If set, this TargetActor will produce TargetData on the Server in addition
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* to the client and the client will just send a generic "Confirm" event to the server. If false, the client will send
|
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* the TargetData to the Server. This is handled by the WaitTargetDataUsingActor AbilityTask.
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* @param bInUsePersistentHitResults Should HitResults persist while targeting? HitResults are cleared on Confirm/Cancel or
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* when new HitResults take their place.
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* @param bInDebug When true, this TargetActor will show debug lines of the trace and hit results.
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* @param bInTraceAffectsAimPitch Does the trace affect the aiming pitch?
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* @param bInTraceFromPlayerViewPoint Should we trace from the player ViewPoint instead of the StartLocation? The
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* TargetData HitResults will still have the StartLocation for the TraceStart. This is useful for FPS where we want
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* to trace from the player ViewPoint but draw the bullet tracer from the weapon muzzle.
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* TODO: AI Controllers should fall back to muzzle location. Not implemented yet.
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* @param bInUseAImingSpreadMod Should we modify spread based on if we're aiming? If true, must set InAimingTag and
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* InAimingRemovalTag.
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* @param InMaxRange Max range for this trace.
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* @param InTraceSphereRadius Radius for the sphere trace.
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* @param InBaseSpread Base targeting spread in degrees.
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* @param InAimingSpreadMod Optional. Multiplicative modifier to spread if aiming.
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* @param InTargetingSpreadIncrement Amount spread increments from continuous targeting in degrees.
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* @param InTargetingSpreadMax Maximum amount of spread for continuous targeting in degrees.
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* @param InMaxHitResultsPerTrace Max hit results that a trace can return. < 1 just returns the trace end point.
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* @param InNumberOfTraces Number of traces to perform. Intended to be used with BaseSpread for multi-shot weapons
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* like shotguns. Not intended to be used with PersistentHitsResults. If using PersistentHitResults, NumberOfTraces is
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* hardcoded to 1. You will need to add support for this in your project if you need it.
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*/
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UFUNCTION(BlueprintCallable, Category = "GGA|TargetActor")
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void Configure(
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UPARAM(DisplayName = "Start Location") const FGameplayAbilityTargetingLocationInfo& InStartLocation,
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UPARAM(DisplayName = "Aiming Tag") FGameplayTag InAimingTag,
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UPARAM(DisplayName = "Aiming Removal Tag") FGameplayTag InAimingRemovalTag,
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UPARAM(DisplayName = "Trace Profile") FCollisionProfileName InTraceProfile,
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UPARAM(DisplayName = "Filter") FGameplayTargetDataFilterHandle InFilter,
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UPARAM(DisplayName = "Reticle Class") TSubclassOf<AGameplayAbilityWorldReticle> InReticleClass,
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UPARAM(DisplayName = "Reticle Params") FWorldReticleParameters InReticleParams,
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UPARAM(DisplayName = "Ignore Blocking Hits") bool bInIgnoreBlockingHits = false,
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UPARAM(DisplayName = "Should Produce Target Data on Server") bool bInShouldProduceTargetDataOnServer = false,
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UPARAM(DisplayName = "Use Persistent Hit Results") bool bInUsePersistentHitResults = false,
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UPARAM(DisplayName = "Debug") bool bInDebug = false,
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UPARAM(DisplayName = "Trace Affects Aim Pitch") bool bInTraceAffectsAimPitch = true,
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UPARAM(DisplayName = "Trace From Player ViewPoint") bool bInTraceFromPlayerViewPoint = false,
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UPARAM(DisplayName = "Use Aiming Spread Mod") bool bInUseAimingSpreadMod = false,
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UPARAM(DisplayName = "Max Range") float InMaxRange = 999999.0f,
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UPARAM(DisplayName = "Trace Sphere Radius") float InTraceSphereRadius = 100.0f,
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UPARAM(DisplayName = "Base Targeting Spread") float InBaseSpread = 0.0f,
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UPARAM(DisplayName = "Aiming Spread Mod") float InAimingSpreadMod = 0.0f,
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UPARAM(DisplayName = "Targeting Spread Increment") float InTargetingSpreadIncrement = 0.0f,
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UPARAM(DisplayName = "Targeting Spread Max") float InTargetingSpreadMax = 0.0f,
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UPARAM(DisplayName = "Max Hit Results Per Trace") int32 InMaxHitResultsPerTrace = 1,
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UPARAM(DisplayName = "Number of Traces") int32 InNumberOfTraces = 1
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);
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virtual void SphereTraceWithFilter(TArray<FHitResult>& OutHitResults, const UWorld* World, const FGameplayTargetDataFilterHandle FilterHandle, const FVector& Start, const FVector& End,
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float Radius, FName ProfileName, const FCollisionQueryParams Params);
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protected:
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virtual void DoTrace(TArray<FHitResult>& HitResults, const UWorld* World, const FGameplayTargetDataFilterHandle FilterHandle, const FVector& Start, const FVector& End, FName ProfileName,
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const FCollisionQueryParams Params) override;
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virtual void ShowDebugTrace(TArray<FHitResult>& HitResults, EDrawDebugTrace::Type DrawDebugType, float Duration = 2.0f) override;
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#if ENABLE_DRAW_DEBUG
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// Utils for drawing result of multi line trace from KismetTraceUtils.h
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void DrawDebugSweptSphere(const UWorld* InWorld, FVector const& Start, FVector const& End, float Radius, FColor const& Color, bool bPersistentLines = false, float LifeTime = -1.f,
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uint8 DepthPriority = 0);
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void DrawDebugSphereTraceMulti(const UWorld* World, const FVector& Start, const FVector& End, float Radius, EDrawDebugTrace::Type DrawDebugType, bool bHit, const TArray<FHitResult>& OutHits,
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FLinearColor TraceColor, FLinearColor TraceHitColor, float DrawTime);
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#endif // ENABLE_DRAW_DEBUG
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};
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@@ -0,0 +1,163 @@
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// Copyright 2025 https://yuewu.dev/en All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "Abilities/GameplayAbilityTargetActor.h"
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#include "CollisionQueryParams.h"
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#include "Engine/CollisionProfile.h"
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#include "Kismet/KismetSystemLibrary.h"
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#include "GGA_AbilityTargetActor_Trace.generated.h"
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/**
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* 可重用、配置的目标捕获Actor。子类继承实现新的检测形状。
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* 与WaitTargetDataWithResuableActor配合使用。
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*/
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UCLASS()
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class GENERICGAMEPLAYABILITIES_API AGGA_AbilityTargetActor_Trace : public AGameplayAbilityTargetActor
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{
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GENERATED_BODY()
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public:
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AGGA_AbilityTargetActor_Trace();
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// 基本瞄准扩散（角度）
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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float BaseSpread;
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// 瞄准扩散修改器
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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float AimingSpreadMod;
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// 连续瞄准: 扩散增量
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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float TargetingSpreadIncrement;
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// 连续瞄准: 最大增量
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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float TargetingSpreadMax;
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// 连续瞄准的当前扩散
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float CurrentTargetingSpread;
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/** 是否使用瞄准扩散，开启后，检测方向会产生随机扩散（轻微改变检测方向） */
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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bool bUseAimingSpreadMod;
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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FGameplayTag AimingTag;
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UPROPERTY(BlueprintReadWrite, Category = "GGA|TargetActor")
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FGameplayTag AimingRemovalTag;
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/** 最大范围 */
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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float MaxRange;
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/** 检测预设 */
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UPROPERTY(BlueprintReadWrite, EditAnywhere, config, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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FCollisionProfileName TraceProfile;
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/** 检测是否影响瞄准偏移(沿Y轴的旋转) */
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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bool bTraceAffectsAimPitch;
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/** 每次检测所返回的最大碰撞结果数量。0表示只返回检测终点。 */
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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int32 MaxHitResultsPerTrace;
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/** 一次性检测的次数，单发射击武器（如来福枪）只会进行一次检测，而多发射击武器（如散弹枪）可以进行多次检测。
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* 不可与PersistentHits配合使用。
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* 会影响十字线Actor的数量
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*/
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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int32 NumberOfTraces;
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/**是否忽略阻挡Hits*/
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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bool bIgnoreBlockingHits;
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/**是否从玩家控制器的视角开始检测,否则从StartLocation开始检测*/
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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bool bTraceFromPlayerViewPoint;
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// HitResults will persist until Confirmation/Cancellation or until a new HitResult takes its place
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UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (ExposeOnSpawn = true), Category = "GGA|TargetActor")
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bool bUsePersistentHitResults;
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/**重置扩散 */
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UFUNCTION(BlueprintCallable, Category = "GGA|TargetActor")
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virtual void ResetSpread();
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virtual float GetCurrentSpread() const;
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// 设置开始位置信息
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UFUNCTION(BlueprintCallable, Category = "GGA|TargetActor")
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void SetStartLocation(const FGameplayAbilityTargetingLocationInfo& InStartLocation);
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// 是否在服务端产生目标数据
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UFUNCTION(BlueprintCallable, Category = "GGA|TargetActor")
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virtual void SetShouldProduceTargetDataOnServer(bool bInShouldProduceTargetDataOnServer);
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// 设置当玩家确认目标后是否销毁此TargetingActor。
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UFUNCTION(BlueprintCallable, Category = "GGA|TargetActor")
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void SetDestroyOnConfirmation(bool bInDestroyOnConfirmation = false);
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virtual void StartTargeting(UGameplayAbility* Ability) override;
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virtual void ConfirmTargetingAndContinue() override;
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virtual void CancelTargeting() override;
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virtual void BeginPlay() override;
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virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;
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virtual void Tick(float DeltaSeconds) override;
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// Traces as normal, but will manually filter all hit actors
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virtual void LineTraceWithFilter(TArray<FHitResult>& OutHitResults, const UWorld* World,
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const FGameplayTargetDataFilterHandle FilterHandle, const FVector& Start,
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const FVector& End, FName ProfileName, const FCollisionQueryParams Params);
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||||
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virtual void AimWithPlayerController(const AActor* InSourceActor, FCollisionQueryParams Params,
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const FVector& TraceStart, FVector& OutTraceEnd, bool bIgnorePitch = false);
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||||
virtual bool ClipCameraRayToAbilityRange(FVector CameraLocation, FVector CameraDirection, FVector AbilityCenter,
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float AbilityRange, FVector& ClippedPosition);
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||||
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||||
virtual void StopTargeting();
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||||
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||||
protected:
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||||
// 检测终点, useful for debug drawing
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FVector CurrentTraceEnd;
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||||
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||||
// 对准心Actor的引用
|
||||
TArray<TWeakObjectPtr<AGameplayAbilityWorldReticle>> ReticleActors;
|
||||
TArray<FHitResult> PersistentHitResults;
|
||||
|
||||
TArray<FHitResult> CurrentHitResults;
|
||||
|
||||
virtual FGameplayAbilityTargetDataHandle MakeTargetData(const TArray<FHitResult>& HitResults) const;
|
||||
virtual TArray<FHitResult> PerformTrace(AActor* InSourceActor);
|
||||
|
||||
|
||||
//实际的检测，由子类覆写。
|
||||
virtual void DoTrace(TArray<FHitResult>& HitResults, const UWorld* World,
|
||||
const FGameplayTargetDataFilterHandle FilterHandle, const FVector& Start, const FVector& End,
|
||||
FName ProfileName, const FCollisionQueryParams Params) PURE_VIRTUAL(AUETA_Trace, return;);
|
||||
|
||||
virtual void ShowDebugTrace(TArray<FHitResult>& HitResults, EDrawDebugTrace::Type DrawDebugType,
|
||||
float Duration = 2.0f) PURE_VIRTUAL(AUETA_Trace, return;);
|
||||
|
||||
/** 生成准心Actor */
|
||||
virtual AGameplayAbilityWorldReticle* SpawnReticleActor(FVector Location, FRotator Rotation);
|
||||
|
||||
/**销毁所有准心Actor */
|
||||
virtual void DestroyReticleActors();
|
||||
|
||||
public:
|
||||
/**获取当前的hitresult */
|
||||
UFUNCTION(BlueprintPure, Category = "GGA|TargetActor")
|
||||
void GetCurrentHitResult(TArray<FHitResult>& HitResults);
|
||||
};
|
||||
Reference in New Issue
Block a user