From c913a7c00bf2981d5a1352aa3b8a5ae4bc518944 Mon Sep 17 00:00:00 2001
From: TjgL <lithmoneo@gmail.com>
Date: Fri, 28 Mar 2025 18:04:58 +0100
Subject: [PATCH] Implemented coyote time

Signed-off-by: TjgL <lithmoneo@gmail.com>
---
 Source/LegumeMix/Private/Player/LMPlayer.cpp | 18 +++++++++++++++++-
 Source/LegumeMix/Public/Player/LMPlayer.h    |  9 +++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/Source/LegumeMix/Private/Player/LMPlayer.cpp b/Source/LegumeMix/Private/Player/LMPlayer.cpp
index f5b5f86..d52007e 100644
--- a/Source/LegumeMix/Private/Player/LMPlayer.cpp
+++ b/Source/LegumeMix/Private/Player/LMPlayer.cpp
@@ -113,7 +113,13 @@ int ALMPlayer::RemoveAmmo(const EAmmoType AmmoType, const int Count) const
 
 bool ALMPlayer::CanJumpInternal_Implementation() const
 {
-	return JumpIsAllowedInternal();
+	return JumpIsAllowedInternal() || bIsInCoyoteTime;
+}
+
+void ALMPlayer::OnJumped_Implementation()
+{
+	Super::OnJumped_Implementation();
+	bIsInCoyoteTime = false;
 }
 
 void ALMPlayer::AddAmmo(const EAmmoType Ammo, const int AmmoCount)
@@ -245,6 +251,16 @@ void ALMPlayer::SetPlayerViewOcclusionPercent()
 	NextPlayerViewOcclusionPercent = CumulatedDamagesOnCurrentHitPeriod / HealthAtTheCurrentHitPeriodBeginning;
 }
 
+void ALMPlayer::OnWalkingOffLedge_Implementation(const FVector& PreviousFloorImpactNormal,
+	const FVector& PreviousFloorContactNormal, const FVector& PreviousLocation, float TimeDelta)
+{
+	Super::OnWalkingOffLedge_Implementation(PreviousFloorImpactNormal, PreviousFloorContactNormal, PreviousLocation,
+	                                        TimeDelta);
+
+	bIsInCoyoteTime = true;
+	GetWorldTimerManager().SetTimer(CoyoteCheckTimer, this, &ALMPlayer::FinishCoyoteTime, CoyoteTimeLength, false);
+}
+
 void ALMPlayer::MovementChanged(ACharacter* Character, EMovementMode PrevMovementMode, uint8 PreviousCustomMode)
 {
 	if (GetCharacterMovement()->MovementMode == MOVE_Falling)
diff --git a/Source/LegumeMix/Public/Player/LMPlayer.h b/Source/LegumeMix/Public/Player/LMPlayer.h
index 2183e22..612e380 100644
--- a/Source/LegumeMix/Public/Player/LMPlayer.h
+++ b/Source/LegumeMix/Public/Player/LMPlayer.h
@@ -56,6 +56,7 @@ public:
 	int RemoveAmmo(EAmmoType AmmoType, int Count) const;
 
 	virtual bool CanJumpInternal_Implementation() const override;
+	virtual void OnJumped_Implementation() override;
 
 	UFUNCTION(BlueprintCallable)
 	void AddAmmo(EAmmoType Ammo, int AmmoCount);
@@ -210,6 +211,9 @@ private:
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Legumix|LedgeGrab", meta = (AllowPrivateAccess = true, ClampMin = 0.f))
 	float LedgeGrabTraceLength = 44.f;
 
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Legumix, meta = (AllowPrivateAccess = true, ClampMin = 0.01f))
+	float CoyoteTimeLength = 0.5f;
+
 	/**
 	 * Actualize all parameters needed to calculate PlayerViewOcclusionPercent 
 	 */
@@ -222,6 +226,9 @@ private:
 	UFUNCTION(BlueprintCallable, Category=PostProcess)
 	void SetPlayerViewOcclusionPercent();
 
+	void OnWalkingOffLedge_Implementation(const FVector& PreviousFloorImpactNormal, const FVector& PreviousFloorContactNormal, const FVector& PreviousLocation, float TimeDelta) override;
+	void FinishCoyoteTime() { bIsInCoyoteTime = false; }
+	
 private:
 #if WITH_EDITORONLY_DATA
 	/** If set, bullet debug will be drawn. */
@@ -232,4 +239,6 @@ private:
 private:
 	FRandomStream SpreadStream;
 	FTimerHandle LedgeGrabCheckTimer;
+	FTimerHandle CoyoteCheckTimer;
+	bool bIsInCoyoteTime;
 };