public void Update(GameTime gameTime, List <Enemy> enemies)
{
mouseState = Mouse.GetState();
cellX = (int)(mouseState.X / 50); // Convert the position of the mouse
cellY = (int)(mouseState.Y / 50); // from array space to level space
tileX = cellX * 50; // Convert from array space to level space
tileY = cellY * 50; // Convert from array space to level space
if (mouseState.LeftButton == ButtonState.Released && oldState.LeftButton == ButtonState.Pressed) // if click
{
if (IsCellClear()) //make tower
{
ArrowTower tower = new ArrowTower(towerTexture, bulletTexture, new Vector2(tileX, tileY));
towers.Add(tower);
}
}
foreach (Towers tower in towers)// mark target
{
if (tower.Target == null)
{
tower.GetClosestEnemy(enemies);
}
tower.Update(gameTime);
}
oldState = mouseState; // Set the oldState so it becomes the state of the previous frame.
}
/// <summary>
/// Adds a tower to the player's collection.
/// </summary>
public void AddTower()
{
Towers towerToAdd = null;
switch (newTowerType)
{
case "Arrow Tower":
{
towerToAdd = new ArrowTower(towerTextures[0],
bulletTexture, new Vector2(tileX, tileY));
break;
}
case "Slow Tower":
{
towerToAdd = new SlowTower(towerTextures[1],
bulletTexture, new Vector2(tileX, tileY));
break;
}
case "Snipe Tower":
{
towerToAdd = new SnipeTower(towerTextures[2],
bulletTexture, new Vector2(tileX, tileY));
break;
}
}
// Only add the tower if there is a space and if the player can afford it.
if (IsCellClear() == true && towerToAdd.Cost <= money)
{
towers.Add(towerToAdd);
money -= towerToAdd.Cost;
// Reset the newTowerType field.
newTowerType = string.Empty;
}
else
{
newTowerType = string.Empty;
}
}