public static bool runTests()
{
Box b1 = new Box(0, 0, 2, 2);
Rectangle r1 = new Rectangle(1, -1, 1, 4);
Box expected1 = new Box(1, 0, 1, 2);
Box result1 = b1.shrinkWrap(r1);
if (!expected1.Equals(result1)) return false;
Rectangle r2 = new Rectangle(1, 0, 3, 3);
Box expected2 = new Box(1, 0, 1, 2);
Box result2 = b1.shrinkWrap(r2);
if (!expected2.Equals(result2)) return false;
Rectangle r3 = new Rectangle(-1, -1, 4, 4);
Box result3 = b1.shrinkWrap(r3);
if (!b1.Equals(result3)) return false;
Rectangle r4 = new Rectangle(1, 1, 1, 1);
Box result4 = b1.shrinkWrap(r4);
if (!result4.Equals(new Box(r4))) return false;
Box b2 = new Box(0.5f,0.5f, 2f,2f);
Rectangle r5 = new Rectangle(0, 0, 3, 3);
Box result5 = b2.shrinkWrap(r5);
if (!result5.Equals(b2)) return false;
return true;
}
protected Vector2 adjustPos(ref Box mover, MapObject platform, Axis axis)
{
if (platform.Polygon != null)
return Vector2.Zero;
//return adjustPos(ref mover, platform.Polygon);
else
return adjustPos(ref mover, platform.Bounds, axis);
}
public override void Initialize(Animation animation, Vector2 startPos)
{
base.Initialize(animation, startPos);
health = 10;
speed = 8.0f;
grounded = false;
collision = new Box(pos.X, pos.Y, animation.FrameWidth, animation.FrameHeight);
}
public void Apply(GameTime gt, Player player, Level level)
{
float dt = gt.ElapsedGameTime.Milliseconds / 1000f;
player.velocity.Y += Constants.gravity * dt;
Box endBox = new Box(player.collision) ;
float dx = player.velocity.X * dt;
float dy = player.velocity.Y * dt;
Rectangle checkRect ;
IEnumerable<MapObject> collideObjects;
if (dx != 0)
{
endBox.Left += dx;
checkRect = endBox.rect;
checkRect.Inflate(1, 1);
collideObjects = level.map.GetObjectsInRegion(level.collisionLayer, checkRect);
foreach (var obj in collideObjects)
{
Vector2 delta = adjustPos(ref endBox, obj, Axis.X);
endBox.pos += delta;
}
}
endBox.Top += dy;
checkRect = endBox.rect;
checkRect.Inflate(1, 1);
collideObjects = level.map.GetObjectsInRegion(level.collisionLayer, checkRect);
foreach (var obj in collideObjects)
{
Vector2 delta = adjustPos(ref endBox, obj, Axis.Y);
endBox.pos -= delta;
if (delta.Y != 0)
{
player.velocity.Y = 0;
if (delta.Y > 0) player.grounded = true;
}
}
player.pos = endBox.pos;
}
protected Vector2 adjustPos(ref Box mover, Rectangle platform, Axis axis)
{
Rectangle checkRect = mover.rect;
checkRect.Inflate(1, 1);
Box delta = mover.shrinkWrap(Rectangle.Intersect(checkRect, platform));
if (axis == Axis.X)
{
if (mover.Left >= platform.Left && mover.Right <= platform.Right) return Vector2.Zero;
return new Vector2(delta.Width, 0);
}
else
{
if (mover.Top >= platform.Top && mover.Bottom <= platform.Bottom) return Vector2.Zero;
return new Vector2(0, delta.Height);
}
}
public bool Equals(Box b)
{
return (b.pos == pos && b.size == size);
}
public Box(Box b)
{
pos = b.pos;
size = b.size;
}