/** Sets the current ball possessor */
void AMagicBattleSoccerBall::SetPossessor(AMagicBattleSoccerCharacter* Player)
{
if (Role < ROLE_Authority)
{
// Safety check. Only authority entities should drive the ball.
}
else
{
// We only allow a possession change if the ball is being unpossessed or the player is not one we're ignoring
if (nullptr == Player || (CanPossessBall(Player) && (PossessorToIgnore != Player)))
{
AMagicBattleSoccerCharacter *OldPossessor = Possessor;
// Assign the new possessor
Possessor = Player;
// Handle cases when the ball had a possessor in the previous frame
if (nullptr != OldPossessor)
{
// Assign the last possessor
LastPossessor = OldPossessor;
// Assign the possessor to ignore
PossessorToIgnore = OldPossessor;
}
// Toggle physics
UPrimitiveComponent *Root = Cast<UPrimitiveComponent>(GetRootComponent());
if (nullptr != Possessor)
{
Possessor->StopWeaponFire(Possessor->PrimaryWeapon);
Possessor->StopWeaponFire(Possessor->SecondaryWeapon);
Root->PutRigidBodyToSleep();
Root->SetSimulatePhysics(false);
Root->SetEnableGravity(false);
SetActorEnableCollision(false);
MoveWithPossessor();
}
else
{
Root->SetSimulatePhysics(true);
Root->SetEnableGravity(true);
SetActorEnableCollision(true);
Root->PutRigidBodyToSleep();
}
}
// Force the orientation to be replicated at the same time the possessor is replicated
UPrimitiveComponent *Root = Cast<UPrimitiveComponent>(GetRootComponent());
ServerPhysicsState.pos = GetActorLocation();
ServerPhysicsState.rot = GetActorRotation();
ServerPhysicsState.vel = Root->GetComponentVelocity();
ServerPhysicsState.timestamp = AMagicBattleSoccerPlayerController::GetLocalTime();
}
}
/** This occurs when play begins */
void AMagicBattleSoccerBall::BeginPlay()
{
Super::BeginPlay();
if (Role < ROLE_Authority)
{
// The server manages the game state; the soccer ball will be replicated to us.
// Physics however are not replicated. We will need to have the ball orientation
// replicated to us. We need to turn off physics simulation and collision detection.
UPrimitiveComponent *Root = Cast<UPrimitiveComponent>(GetRootComponent());
Root->PutRigidBodyToSleep();
Root->SetSimulatePhysics(false);
Root->SetEnableGravity(false);
SetActorEnableCollision(false);
}
else
{
// Servers should add this soccer ball to the game mode cache.
// It will get replicated to clients for when they need to access
// the ball itself to get information such as who possesses it.
AMagicBattleSoccerGameState* GameState = GetGameState();
GameState->SoccerBall = this;
}
}
/** Called by the GameMode object when the next round has begun */
void AMagicBattleSoccerBall::RoundHasStarted_Implementation()
{
if (Role == ROLE_Authority)
{
if (nullptr != Possessor)
{
SetPossessor(nullptr); // This change will be replicated to all clients
}
else
{
UPrimitiveComponent *Root = Cast<UPrimitiveComponent>(GetRootComponent());
Root->PutRigidBodyToSleep();
}
PossessorToIgnore = nullptr;
}
}
