From d7a96d278d9abefaab4325da3a003083e12f4dd8 Mon Sep 17 00:00:00 2001
From: Tyrel Souza <tyrelsouza@gmail.com>
Date: Thu, 22 Feb 2018 21:31:40 -0500
Subject: [PATCH] IT GRABS!!!

---
 RoomEscape/Source/RoomEscape/Grabber.cpp | 28 +++++++++++++++++++++++-
 RoomEscape/Source/RoomEscape/Grabber.h   |  1 +
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/RoomEscape/Source/RoomEscape/Grabber.cpp b/RoomEscape/Source/RoomEscape/Grabber.cpp
index a77bd38..f636a68 100644
--- a/RoomEscape/Source/RoomEscape/Grabber.cpp
+++ b/RoomEscape/Source/RoomEscape/Grabber.cpp
@@ -35,7 +35,20 @@ void UGrabber::TickComponent(float DeltaTime, ELevelTick TickType, FActorCompone
 	// if physics handle is attached
 	 // move object holding
 	// do nothing
+	/// Get player View point in this tick
+	FVector PlayerViewpointLocation;
+	FRotator PlayerViewpointRotation;
+	GetWorld()->GetFirstPlayerController(
+	)->GetPlayerViewPoint(
+		OUT PlayerViewpointLocation,
+		OUT PlayerViewpointRotation
+	);
 
+	FVector LineTraceEnd = PlayerViewpointLocation + PlayerViewpointRotation.Vector() * Reach;
+
+	if (PhysicsHandle->GrabbedComponent) {
+		PhysicsHandle->SetTargetLocation(LineTraceEnd);
+	}
 
 	
 
@@ -47,9 +60,20 @@ void UGrabber::TickComponent(float DeltaTime, ELevelTick TickType, FActorCompone
 void UGrabber::Grab() {
 	UE_LOG(LogTemp, Warning, TEXT("GRABBING!"));
 	// LINE TRACE and Try and reach any actors with physics body collision channel set
-	GetFirstPhysicsBodyInReach();
+	auto HitResult = GetFirstPhysicsBodyInReach();
+	auto ComponentToGrab = HitResult.GetComponent();
+	auto ActorHit = HitResult.GetActor();
+
 	// if we hit something attach physics handle
 	// TODO: attach physics handle
+	if (ActorHit) {
+		PhysicsHandle->GrabComponent(
+			ComponentToGrab,
+			NAME_None,
+			ComponentToGrab->GetOwner()->GetActorLocation(),
+			true //allow rotation
+		);
+	}
 
 }
 
@@ -57,6 +81,8 @@ void UGrabber::Grab() {
 void UGrabber::Release() {
 	UE_LOG(LogTemp, Warning, TEXT("Released!"));
 	//TODO: Release physics handle
+	PhysicsHandle->ReleaseComponent();
+
 }
 
 // Look for attached physics handle
diff --git a/RoomEscape/Source/RoomEscape/Grabber.h b/RoomEscape/Source/RoomEscape/Grabber.h
index 6dc6a15..c662110 100644
--- a/RoomEscape/Source/RoomEscape/Grabber.h
+++ b/RoomEscape/Source/RoomEscape/Grabber.h
@@ -37,4 +37,5 @@ private:
 
 	// Return hit for first physics body in reach
 	FHitResult GetFirstPhysicsBodyInReach() const;
+	
 };