void AMyCharacter::Tick(float DeltaSeconds)
{
Super::Tick(DeltaSeconds);
// Get mouse position
APlayerController* pc = Cast<APlayerController>(GetController());
float mouseX = 0.f;
float mouseY = 0.f;
FVector mousePos = FVector::ZeroVector;
if (pc->GetMousePosition(mouseX, mouseY))
{
mousePos = FVector(mouseX, mouseY, 0.0f);
// UE_LOG(LogTemp, Warning, TEXT("Mouse X %f: MouseY %f"), mouseX, mouseY);
}
// Calculate look at direction
const FVector2D ViewportSize = FVector2D(GEngine->GameViewport->Viewport->GetSizeXY());
FVector middleOfScreen = FVector(ViewportSize.X / 2, ViewportSize.Y / 2, 0.0f);
FVector directionToMouse = mousePos - middleOfScreen;
FRotator UpperBodyRot = directionToMouse.Rotation();
UpperBodyRot.Roll = -90.0f;
UpperBodyRot.Pitch = 0.0f;
UpperBodyRot.Yaw = UpperBodyRot.Yaw + 90.0f;
UpperBodyFB->SetWorldRotation(UpperBodyRot);
// Determine Heading of lower Body
FVector upperBodyVec = UpperBodyRot.Vector();
upperBodyVec.Normalize();
FVector vel = GetVelocity();
vel.Z = 0.0f; // Ignore the movement in the vertical direction like when he is falling.
// Calculate Movement Vector
if (!vel.Equals(FVector::ZeroVector))
{
MovementDirectionVec = vel;
}
MovementDirectionVec.Normalize();
// Calculate Angle
float dotProduct = FVector::DotProduct(upperBodyVec, MovementDirectionVec);
float magnitudes = upperBodyVec.Size() * MovementDirectionVec.Size();
float AimAtAngle = FMath::RadiansToDegrees(acosf(dotProduct / magnitudes));
FVector sideVector = UpperBodyRot.Vector().RotateAngleAxis(90.0f, FVector(0, 0, 1));
// Greater than 0 is left, Less than zero is right
float sideDirection = FVector::DotProduct(sideVector, MovementDirectionVec);
// He is looking left
if (sideDirection < 0 && AimAtAngle > StrafingStartAngle && AimAtAngle < StrafingEndAngle)
{
CurMovementAction = EMovementActions::STRAFING_LEFT;
}
// He is looking right
if (sideDirection > 0 && AimAtAngle > StrafingStartAngle && AimAtAngle < StrafingEndAngle)
{
CurMovementAction = EMovementActions::STRAFING_RIGHT;
}
// Is he moving forward in relation to where he is facing
if (AimAtAngle < StrafingStartAngle)
{
CurMovementAction = EMovementActions::MOVING_FORWARDS;
}
// Is he moving backward in relation to where he is facing
if (AimAtAngle > StrafingEndAngle)
{
CurMovementAction = EMovementActions::MOVING_BACKWARDS;
}
// Debug
// Draw Vectors for debugging
// UE_LOG(LogTemp, Warning, TEXT("Angle %f"), AimAtAngle);
DrawDebugLine(GetWorld(), UpperBodyFB->GetComponentLocation(), UpperBodyFB->GetComponentLocation() + (upperBodyVec * 500), FColor::Red, false, -1, 0, 12.333);
DrawDebugLine(GetWorld(), UpperBodyFB->GetComponentLocation(), UpperBodyFB->GetComponentLocation() + (sideVector * 500), FColor::Green, false, -1, 0, 12.333);
DrawDebugLine(GetWorld(), GetActorLocation(), GetActorLocation() + (MovementDirectionVec * 500), FColor::Yellow, false, -1, 0, 12.333);
// Movement
// UE_LOG(LogTemp, Warning, TEXT("Moving Forward %d, Strafing Left %d, Moving Backward %d, Strafing Right %d"), bIsMovingForwards, bIsStrafingLeft, bIsMovingBackwards, bIsStrafingRight);
// UE_LOG(LogTemp, Warning, TEXT("Dot Product: %f"), dotProduct);
// UE_LOG(LogTemp, Warning, TEXT("Side Direction: %f"), sideDirection);
UE_LOG(LogTemp, Warning, TEXT("MovementDirectionVec: X = %f, Y = %f, Z = %f"), MovementDirectionVec.X, MovementDirectionVec.Y, MovementDirectionVec.Z);
switch (CurMovementAction)
{
case EMovementActions::STRAFING_LEFT:
UE_LOG(LogTemp, Warning, TEXT("STRAFING_LEFT"));
break;
case EMovementActions::STRAFING_RIGHT:
UE_LOG(LogTemp, Warning, TEXT("STRAFING_RIGHT"));
break;
case EMovementActions::MOVING_FORWARDS:
UE_LOG(LogTemp, Warning, TEXT("MOVING_FORWARDS"));
break;
case EMovementActions::MOVING_BACKWARDS:
UE_LOG(LogTemp, Warning, TEXT("MOVING_BACKWARDS"));
break;
}
}
FVector2D AGameplayPawn::GetMouseWorldPosition()
{
UWorld* TestWorld = GetWorld();
if (TestWorld)
{
APlayerController* PlayerController = TestWorld->GetFirstPlayerController();
FVector2D MousePos = FVector2D(0, 0);
FVector WorldPos = FVector(MousePos.X, MousePos.Y, 0);
FVector Dir = FVector(0, 0, 0);
if (PlayerController != nullptr)
{
PlayerController->GetMousePosition(MousePos.X, MousePos.Y);
PlayerController->DeprojectMousePositionToWorld(WorldPos, Dir);
}
return FVector2D((int)(WorldPos.X/SCALE_FACTOR), (int)(WorldPos.Y/SCALE_FACTOR));
}
return FVector2D::ZeroVector;
}
