mirror of
https://github.com/Ed94/Cog.git
synced 2026-06-13 08:02:23 -07:00
Arnaud Jamin
104 lines
4.9 KiB
C++
104 lines
4.9 KiB
C++
#include "CogSampleExecCalculation_Damage.h"
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#include "CogSampleAttributeSet_Health.h"
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#include "CogSampleCharacter.h"
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#include "CogSampleTagLibrary.h"
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//--------------------------------------------------------------------------------------------------------------------------
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struct FCogSampleDamageStatics
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{
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DECLARE_ATTRIBUTE_CAPTUREDEF(DamageResistance);
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FCogSampleDamageStatics()
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{
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DEFINE_ATTRIBUTE_CAPTUREDEF(UCogSampleAttributeSet_Health, DamageResistance, Target, false);
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}
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};
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//--------------------------------------------------------------------------------------------------------------------------
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static const FCogSampleDamageStatics& DamageStatics()
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{
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static FCogSampleDamageStatics __FCogSampleDamageStatics;
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return __FCogSampleDamageStatics;
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}
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//--------------------------------------------------------------------------------------------------------------------------
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UCogSampleExecCalculation_Damage::UCogSampleExecCalculation_Damage()
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{
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RelevantAttributesToCapture.Add(FCogSampleDamageStatics().DamageResistanceDef);
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#if WITH_EDITORONLY_DATA
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ValidTransientAggregatorIdentifiers.AddTag(Tag_Effect_Data_Damage);
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InvalidScopedModifierAttributes.Add(FCogSampleDamageStatics().DamageResistanceDef);
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#endif // #if WITH_EDITORONLY_DATA
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}
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//--------------------------------------------------------------------------------------------------------------------------
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void UCogSampleExecCalculation_Damage::Execute_Implementation(const FGameplayEffectCustomExecutionParameters& ExecutionParams, OUT FGameplayEffectCustomExecutionOutput& OutExecutionOutput) const
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{
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const FGameplayEffectSpec& EffectSpec = ExecutionParams.GetOwningSpec();
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const FGameplayEffectContextHandle Context = EffectSpec.GetContext();
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FAggregatorEvaluateParameters EvaluationParameters;
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EvaluationParameters.SourceTags = EffectSpec.CapturedSourceTags.GetAggregatedTags();
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EvaluationParameters.TargetTags = EffectSpec.CapturedTargetTags.GetAggregatedTags();
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UAbilitySystemComponent* TargetAbilitySystem = ExecutionParams.GetTargetAbilitySystemComponent();
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UAbilitySystemComponent* SourceAbilitySystem = ExecutionParams.GetSourceAbilitySystemComponent();
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ACogSampleCharacter* TargetCharacter = (TargetAbilitySystem != nullptr) ? Cast<ACogSampleCharacter>(TargetAbilitySystem->AbilityActorInfo.IsValid() ? TargetAbilitySystem->GetAvatarActor() : nullptr) : nullptr;
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ACogSampleCharacter* SourceCharacter = (SourceAbilitySystem != nullptr) ? Cast<ACogSampleCharacter>(SourceAbilitySystem->AbilityActorInfo.IsValid() ? SourceAbilitySystem->GetAvatarActor() : nullptr) : nullptr;
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if (TargetCharacter == nullptr)
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{
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return;
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}
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FGameplayTagContainer SpecAssetTags;
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EffectSpec.GetAllAssetTags(SpecAssetTags);
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//-----------------------------------------------------------------------------------------------------
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// Get flat Damage
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//-----------------------------------------------------------------------------------------------------
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float UnmitigatedDamage = 0.0f;
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ExecutionParams.AttemptCalculateTransientAggregatorMagnitude(Tag_Effect_Data_Damage, EvaluationParameters, UnmitigatedDamage);
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//-----------------------------------------------------------------------------------------------------
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// Apply resistances
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//-----------------------------------------------------------------------------------------------------
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float MitigatedDamage = 0.0f;
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if (TargetAbilitySystem->HasMatchingGameplayTag(Tag_Status_Immune_Damage) == false)
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{
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float Resistances = 0.0f;
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ExecutionParams.AttemptCalculateCapturedAttributeMagnitude(DamageStatics().DamageResistanceDef, EvaluationParameters, Resistances);
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Resistances = FMath::Min(Resistances, 1.0f);
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MitigatedDamage = UnmitigatedDamage * (1.0f - Resistances);
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}
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if (SpecAssetTags.HasTag(Tag_Effect_Type_Damage_Kill))
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{
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UnmitigatedDamage = TargetAbilitySystem->GetNumericAttribute(UCogSampleAttributeSet_Health::GetMaxHealthAttribute());
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MitigatedDamage = UnmitigatedDamage;
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}
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//-----------------------------------------------------------------------------------------------------
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// Apply Damage
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//-----------------------------------------------------------------------------------------------------
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if (MitigatedDamage > 0.0f)
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{
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OutExecutionOutput.AddOutputModifier(FGameplayModifierEvaluatedData(UCogSampleAttributeSet_Health::GetHealthAttribute(), EGameplayModOp::Additive, -MitigatedDamage));
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FCogSampleDamageEventParams Params;
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Params.DamageDealer = SourceCharacter;
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Params.DamageReceiver = TargetCharacter;
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Params.MitigatedDamage = MitigatedDamage;
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Params.UnmitigatedDamage = UnmitigatedDamage;
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TargetCharacter->HandleDamageReceived(Params);
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if (SourceCharacter != nullptr)
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{
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SourceCharacter->HandleDamageDealt(Params);
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}
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}
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}
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