/// <summary>
/// Returns the amount of rails that were placed
/// </summary>
/// <param name="position"></param>
/// <param name="length"></param>
/// <param name="faceDirection"></param>
/// <returns></returns>
public static int PlaceMultipleRails(StraightRail rail, int length, bool modifyLevel = false)
{
Cell cell = new Cell(rail.cell.x, rail.cell.y);
int j = 0;
for (int i = 0; i < length; i++)
{
switch (rail.orientation)
{
case Orientation.Vertical:
j = PlaceItem(new BoosterRail(Cell.GetCell(cell), rail.orientation, rail.removable), modifyLevel) ? j + 1 : j;
cell.y += Cell.cellWidth;
break;
case Orientation.Horizontal:
j = PlaceItem(new BoosterRail(Cell.GetCell(cell), rail.orientation, rail.removable), modifyLevel) ? j + 1 : j;
cell.x += Cell.cellHeight;
break;
}
}
return(j);
}
public void Update(GameTime gameTime)
{
camera.MoveWASD(gameTime);
// check for interaction before placing things
if (Input.mouseCell.item is Lever lever && Input.mouseClicked)
{
lever.ToggleLever();
}
switch (gameState)
{
case GameState.Editing:
break;
case GameState.Simulating:
if (carts.Count > 0)
{
for (int i = 0; i < carts.Count; i++)
{
carts[i].Update(gameTime);
}
if (carts.Count == 0)
{
gameState = GameState.Editing;
}
}
return;
default:
break;
}
mousePosition = Input.mouseCell.ToVector2();
#region Item Placement
#region StraightRail
if ((selectedItem == PlacableItem.StraightRail || selectedItem == PlacableItem.BoosterRail) && canPlaceRail)
{
if (Input.mouseClicked && !placingRail && Input.mouseCell.isEmpty) // start placing rail
{
placingRail = true;
railStartPosition = mousePosition;
drawRect = Rectangle.Empty;
}
else if (Input.mouseState.LeftButton == ButtonState.Released && placingRail) // place the rail if this is true
{
placingRail = false;
length = (int)Math.Max(Math.Abs(railEndPosition.Y - railStartPosition.Y), Math.Abs(railEndPosition.X - railStartPosition.X)) / Cell.cellWidth + 1;
float xDif = Math.Abs(railEndPosition.X - railStartPosition.X);
float yDif = Math.Abs(railEndPosition.Y - railStartPosition.Y);
StraightRail.Orientation prevOrientation = orientation;
if (xDif > yDif)
{
orientation = StraightRail.Orientation.Horizontal;
straightRailRotation = MathHelper.PiOver2;
if (railEndPosition.X < railStartPosition.X) // switch the start and end points so that the start of the rail is always on top or to the left
{
float temp = railStartPosition.X;
railStartPosition.X = railEndPosition.X;
railEndPosition.X = temp;
}
}
else
{
if (xDif != yDif)
{
orientation = StraightRail.Orientation.Vertical;
}
straightRailRotation = 0f;
if (railEndPosition.Y < railStartPosition.Y)
{
float temp = railStartPosition.Y;
railStartPosition.Y = railEndPosition.Y;
railEndPosition.Y = temp;
}
}
switch (selectedItem)
{
case PlacableItem.StraightRail:
length = straightRailCount < length ? straightRailCount : length;
straightRailCount = MathHelper.Clamp(straightRailCount - StraightRail.PlaceMultipleRails(railStartPosition, length, orientation), 0, Globals.level.straightRailCount); // placing the rails
GUI.straightRailElement.ChangeText(straightRailCount.ToString());
break;
case PlacableItem.BoosterRail:
length = boostRailCount < length ? boostRailCount : length;
boostRailCount = MathHelper.Clamp(boostRailCount - StraightRail.PlaceMultipleRails(new BoosterRail(Cell.GetCell(railStartPosition), orientation), length), 0, Globals.level.boostRailCount); // placing the rails
GUI.boostRailElement.ChangeText(boostRailCount.ToString());
break;
}
orientation = prevOrientation;
}
else if (placingRail) // Display the rails being placed
{
if (Input.mouseState.RightButton == ButtonState.Pressed)
{
placingRail = false;
}
railEndPosition = mousePosition;
length = (int)Math.Max(Math.Abs(railEndPosition.Y - railStartPosition.Y), Math.Abs(railEndPosition.X - railStartPosition.X)) / Cell.cellWidth + 1; // limit the length of the rail when drawn by amount of resources
float xDif = Math.Abs(railEndPosition.X - railStartPosition.X);
float yDif = Math.Abs(railEndPosition.Y - railStartPosition.Y);
if (xDif > yDif) // we want to place it horizontally
{
straightRailRotation = MathHelper.PiOver2;
if (railEndPosition.X > railStartPosition.X) // placing rails from left to right
{
drawRect = new Rectangle(0, Textures.RailStraight.Height * -length, Textures.RailStraight.Width, length * Cell.cellHeight);
origin = new Vector2(Textures.RailStraight.Width / 2f, Textures.RailStraight.Height * (length - 0.5f));
}
else
{
drawRect = new Rectangle(0, 0, Textures.RailStraight.Width, length * Cell.cellHeight);
origin = new Vector2(Textures.RailStraight.Width / 2f, Textures.RailStraight.Height / 2f);
}
}
else // we want to place it vertically
{
if (xDif != yDif)
{
straightRailRotation = 0f;
}
else
{
straightRailRotation = straightRotation;
}
if (railEndPosition.Y < railStartPosition.Y) // placing rails from bottom to top
{
drawRect = new Rectangle(0, Textures.RailStraight.Height * -length, Textures.RailStraight.Width, length * Cell.cellHeight);
origin = new Vector2(Textures.RailStraight.Width / 2f, Textures.RailStraight.Height * (length - 0.5f));
}
else
{
drawRect = new Rectangle(0, 0, Textures.RailStraight.Width, length * Cell.cellHeight);
origin = new Vector2(Textures.RailStraight.Width / 2f, Textures.RailStraight.Height / 2f);
}
}
}
}
#endregion
else if (Input.mouseClicked && Input.mouseCell.isEmpty && canPlaceRail)
{
if (selectedItem == PlacableItem.Lever) // Lever placement
{
Item.PlaceItem(new Lever(Input.mouseCell));
}
else if (selectedItem == PlacableItem.DetectorRail)
{
Item.PlaceItem(new DetectorRail(Input.mouseCell, orientation));
}
else if (selectedItem == PlacableItem.PushRail)
{
Item.PlaceItem(new PushRail(Input.mouseCell, orientation));
}
else if (selectedItem == PlacableItem.InverterModule)
{
Item.PlaceItem(new InverterModule(Input.mouseCell));
}
#region TurnRails
else if (selectedItem == PlacableItem.TurnRail) // place a turn-railtrack
{
if (turnRailCount > 0)
{
turnRailCount = MathHelper.Clamp(Item.PlaceItem(new TurnRail(Cell.GetCell(mousePosition), turnOrientation)) ? turnRailCount - 1 : turnRailCount, 0, Globals.level.turnRailCount);
GUI.turnRailElement.ChangeText(turnRailCount.ToString());
}
}
#endregion
}
#endregion
#region Rotation
if (Input.keyState.IsKeyDown(rotateKey) && Input.prevKeyState.IsKeyUp(rotateKey)) // rotate the track
{
if (selectedItem == PlacableItem.TurnRail)
{
turnOrientation = (TurnRail.TurnDirection)Globals.IncrementEnum(typeof(TurnRail.TurnDirection), (int)turnOrientation, 1);
turnOrientationEffect = TurnRail.GetEffects(turnOrientation);
}
else if (selectedItem == PlacableItem.StraightRail || selectedItem == PlacableItem.BoosterRail || selectedItem == PlacableItem.DetectorRail || selectedItem == PlacableItem.PushRail)
{
orientation = (StraightRail.Orientation)Globals.IncrementEnum(typeof(StraightRail.Orientation), (int)orientation, 1);
straightRotation = StraightRail.OrientationToRotation(orientation);
}
}
#endregion
#region ItemSwitching
if (scrollBetweenRails && Input.mouseState.ScrollWheelValue != Input.prevMouseState.ScrollWheelValue) // detecting mouse-scrolling
{
selectedItem = Input.mouseState.ScrollWheelValue > Input.prevMouseState.ScrollWheelValue ? (PlacableItem)Globals.IncrementEnum(typeof(PlacableItem), (int)selectedItem, 1) : selectedItem = (PlacableItem)Globals.IncrementEnum(typeof(PlacableItem), (int)selectedItem, -1);
}
#endregion
#region Removing items
if (Input.mouseState.RightButton == ButtonState.Pressed)
{
Cell cell = Cell.GetCell(mousePosition);
if (cell.item is Item item && item.removable)
{
if (item is TurnRail)
{
turnRailCount++;
GUI.turnRailElement.ChangeText(turnRailCount.ToString());
}
else if (item is BoosterRail)
{
boostRailCount++;
GUI.boostRailElement.ChangeText(boostRailCount.ToString());
}
else if (item is StraightRail)
{
straightRailCount++;
GUI.straightRailElement.ChangeText(straightRailCount.ToString());
}
item.Destroy();
}
}
#endregion
}