/// <summary>
/// Checks if next position will be collision and handles it
/// </summary>
/// <param name="context"></param>
/// <param name="lastPosition"></param>
/// <param name="newPlayerPosition"></param>
/// <param name="newPlayerDirection"></param>
/// <param name="brush"></param>
private static void TripAndCollisionLogic(
GameContext context,
Position lastPosition,
Position newPlayerPosition,
Direction newPlayerDirection,
PaintBrush brush)
{
Random random = new Random(DateTime.Now.Millisecond);
bool collided = newPlayerPosition.PredictCollision(context.Enemies.Select(enemy => enemy.Position));
bool tripped = false;
if (!collided)
{
tripped = random.Next(1, 5) == 1; // 25% chance
}
if (collided)
{
SimulationResult simulationResult = null;
do
{
// TODO: Move constnat numbres to App.config
Simulation simulation = (simulationResult?.Obstacle ?? newPlayerPosition)
.SimulateCollision(
lastPosition,
newPlayerDirection,
3, 4);
newPlayerDirection = newPlayerDirection.Reverse();
simulationResult = context.Square.ExecuteSimulation(simulation, newPosition =>
{
return(!newPosition.PredictCollision(context.Enemies.Select(enemy => enemy.Position)));
}, brush);
lastPosition = simulationResult.LastSafePosition;
} while (!simulationResult.HasSuccessfulyFinished);
context.Player.Position = simulationResult.LastSafePosition;
}
else if (tripped)
{
SimulationResult simulationResult = null;
do
{
Simulation simulation;
// TODO: Move constnat numbres to App.config
if (!simulationResult?.HasSuccessfulyFinished ?? false)
{
simulation = lastPosition
.SimulateCollision(
newPlayerPosition,
newPlayerDirection,
3, 4);
newPlayerDirection = newPlayerDirection.Reverse();
}
else
{
simulation = newPlayerPosition
.SimulateTrip(
simulationResult?.LastSafePosition ?? lastPosition,
newPlayerDirection,
2, 4);
}
simulationResult = context.Square.ExecuteSimulation(simulation, newPosition =>
{
return(!newPosition.PredictCollision(context.Enemies.Select(enemy => enemy.Position)) ||
newPosition.Y < 0 || newPosition.X < 0); // TODO: Finish validation
}, brush, true);
newPlayerPosition = simulationResult.Obstacle;
lastPosition = simulationResult.LastSafePosition;
} while (!simulationResult.HasSuccessfulyFinished);
context.Player.Position = simulationResult.LastSafePosition;
}
else
{
brush.Derender(context.Square, context.Player.Position);
// Update position and direction
context.Player.Direction = newPlayerDirection;
context.Player.Position = newPlayerPosition;
brush.Render(context.Square, context.Player.Position, Player.BodyCharacter);
}
}