public void LeftCollision()
{
e1.Shape.Position = new Vec2F(0.1f, 0.1f);
e2.Shape.Position = new Vec2F(0.05f, 0.1f);
Assert.AreEqual(TaxiCollision.Collision(e1, e2), true);
}
public void NoCollision()
{
e1.Shape.Position = new Vec2F(0.1f, 0.1f);
e2.Shape.Position = new Vec2F(0.3f, 0.3f);
Assert.AreEqual(TaxiCollision.Collision(e1, e2), false);
}
/// <summary>
/// Checks if the taxi has collided with the environment, whereby the game is over.
/// </summary>
private void ItterateLevelSprites()
{
level.LevelSprites.Iterate(delegate(Entity entity) {
if (TaxiCollision.Collision(level.Player.Entity, entity))
{
GameOver();
level.Player.Stall();
}
});
}
/// <summary>
/// Itterates over the different props and calls relevant methods.
/// </summary>
private void ItterateProps()
{
// since the player object keeps a platform, make sure it is null when airborn
if (level.Player.InFlight)
{
level.Player.Platform = null;
}
foreach (Prop p in level.Props)
{
p.PropSprites.Iterate(delegate(Entity entity) {
if (TaxiCollision.Collision(level.Player.Entity, entity))
{
switch (p.GetPropType())
{
// if the player collides with a platform
case PropType.Platform:
var shape = level.Player.Entity.Shape;
// the taxi crashes if it lands at too much speed
if (shape.AsDynamicShape().Direction.Y < -0.003f)
{
GameOver();
}
// othwerwise the taxi is stopped, and moved a tiny bit
// above the platform to prevent further collsions
level.Player.Stall();
shape.Position.Y =
entity.Shape.Position.Y + entity.Shape.Extent.Y + 0.001f;
level.Player.Platform = (Platform)p;
if (level.Customer.Destination == (Platform)p)
{
NextCustomer();
}
break;
case PropType.Exit:
// if the current customer is airborn and the exit is reached
// go to the next level
if (level.Customer.InFlight && level.Customer.Destination == null)
{
NextCustomer();
}
else
{
GameOver();
}
break;
}
}
});
}
}
/// <summary>
/// Moves the customer towards the taxi if they are on the same platform.
/// Then checks for a collision between the taxi and the player.
/// Note that the customer is never moved when inside the taxi, instead
/// the customer is simply made invisible.
/// </summary>
private void UpdateCustomer()
{
// if the customer is inside the taxi, none of this applies
if (level.Customer.InFlight)
{
return;
}
// shorthand for public fields.
var shapeC = level.Customer.Entity.Shape;
var shapeP = level.Player.Entity;
// if the taxi collides with the customer, make sure the taxi is static
if (TaxiCollision.Collision(shapeP, level.Customer.Entity))
{
if (shapeP.Shape.AsDynamicShape().Direction.Y != 0f)
{
GameOver();
}
else
{
level.Customer.InFlight = true;
}
}
// if the taxi is on the platform of a customer, move the customer towards the taxi
if (level.Player.Platform == level.Customer.Platform)
{
var pos = shapeP.Shape.Position.X;
if (pos > shapeC.Position.X)
{
shapeC.Position.X += 0.002f;
}
else
{
shapeC.Position.X -= 0.002f;
}
}
}