public Body(GameObject go, Point position, double width, double height)
{
this.Position = position;
this.GameObject = go;
this.Width = width;
this.Height = height;
}
public Physics(GameObject gameObject, double topSpeed, Vector velocity)
{
_lastUpdate = DateTime.Now.Ticks;
GameObject = gameObject;
_topSpeed = topSpeed;
Velocity = velocity;
}
public static bool CollisionCircleRectangle(GameObject circle, GameObject rect)
{
double circleDistanceX = Math.Abs(rect.Body.Center.X - circle.Body.Center.X);
double circleDistanceY = Math.Abs(rect.Body.Center.Y - circle.Body.Center.Y);
if (circleDistanceY >= (rect.Body.Height / 2 + circle.Body.Height / 2))
{
return false;
}
if (circleDistanceX >= (rect.Body.Width / 2 + circle.Body.Width / 2))
{
return false;
}
if (circleDistanceY < (rect.Body.Height / 2))
{
return true;
}
if (circleDistanceX < (rect.Body.Width / 2))
{
return true;
}
double cornerDistanceSq = Math.Sqrt(
Math.Pow((circleDistanceX - (rect.Body.Width / 2)), 2) +
Math.Pow((circleDistanceY - (rect.Body.Height / 2)), 2));
return (cornerDistanceSq < circle.Body.Height / 2);
}
public void TakeDamage(int amount, GameObject shooter)
{
Value -= amount;
if (Value < 1)
{
GameObject.Destroy(shooter);
}
}
public Bullet(Point position, Vector velocity, double radius, int damage, GameObject owner)
{
Owner = owner;
Damage = damage;
Body = new Body(this, position, radius, radius) { Type = Body.Geometry.RECTANGLE };
Physics = new Physics.Physics(this, 200, velocity);
_lifeTimeEvent = new LightEvent(5000, DestroyEvent);
}
public Bullet(Point position, Vector velocity, double diameter, int damage, int bulletType, GameObject owner)
{
BulletType = bulletType;
Owner = owner;
Damage = damage;
Body = new Body(this, position, diameter, diameter)
{
Type = Body.Geometry.CIRCLE
};
Physics = new Physics.Physics(this, 200, velocity);
_lifeTimeEvent = new LightEvent(5000, DestroyEvent);
Type = EntityType.BULLET;
}
private static bool CollisionCircleCircle(GameObject o1, GameObject o2)
{
double c1x = o1.Body.Position.X;
double c2x = o2.Body.Position.X;
double c1y = o1.Body.Position.Y;
double c2y = o2.Body.Position.Y;
double dx = c1x - c2x;
double dy = c1y - c2y;
double c1r = o1.Body.Height / 2;
double c2r = o2.Body.Height / 2;
return Math.Sqrt((dx * dx) + (dy * dy)) <= (c1r + c2r);
}
public static bool CollisionRectangleRectangle(GameObject rect1, GameObject rect2)
{
double r1X = rect1.Body.Position.X;
double r1Y = rect1.Body.Position.Y;
double r1H = rect1.Body.Width;
double r1L = rect1.Body.Height;
double r2X = rect2.Body.Position.X;
double r2Y = rect2.Body.Position.Y;
double r2H = rect2.Body.Width;
double r2L = rect2.Body.Height;
bool xOverlap = r1X.IsInRange(r2X, r2X + r2L) || r2X.IsInRange(r1X, r1X + r1L);
bool yOverlap = r1Y.IsInRange(r2Y, r2Y + r2H) || r2Y.IsInRange(r1Y, r1Y + r1H);
return xOverlap && yOverlap;
}
public static bool IsColliding(GameObject o1, GameObject o2)
{
bool retval = false;
if (o1.Body.Type == Body.Geometry.CIRCLE && o2.Body.Type == Body.Geometry.CIRCLE)
{
retval = CollisionCircleCircle(o1, o2);
}
else if (o1.Body.Type == Body.Geometry.CIRCLE && o2.Body.Type == Body.Geometry.RECTANGLE)
{
retval = CollisionCircleRectangle(o1, o2);
}
else if (o1.Body.Type == Body.Geometry.RECTANGLE &&
o2.Body.Type == Body.Geometry.CIRCLE)
{
retval = CollisionCircleRectangle(o2, o1);
}
else if (o1.Body.Type == Body.Geometry.RECTANGLE &&
o2.Body.Type == Body.Geometry.RECTANGLE)
{
retval = CollisionRectangleRectangle(o1, o2);
}
return retval;
}
public Health(GameObject gameObject, int maxHealth)
{
GameObject = gameObject;
Max = maxHealth;
Value = maxHealth;
}
public Physics(GameObject gameObject, double topSpeed, Vector velocity)
{
GameObject = gameObject;
_topSpeed = topSpeed;
Velocity = velocity;
}