/// <summary>Applies force to two objects based on their weight and angle between them</summary>
/// <param name="g1"></param>
/// <param name="g2"></param>
public static void Handle(GameObj g1, GameObj g2)
{
Vector2 v = g1.pos - g2.pos;
v.Normalize();
v *= 2;
g1.fce += v * g2.GetWeight() / g1.GetWeight();
g2.fce -= v * g1.GetWeight() / g2.GetWeight();
}
/// <summary>Determines whenever this object intersects with another</summary>
/// <param name="go">The another object</param>
public bool Intersects(GameObj go)
{
int r = go.Radius + Radius;
return DistanceSq(go) < r * r;
}
/// <summary>Checks distance to another object</summary>
/// <param name="go">The another object</param>
/// <returns>The squared distance</returns>
public float DistanceSq(GameObj go)
{
return (go.pos - pos).LengthSquared();
}
/// <summary>Writes data of a single game object into a packet</summary>
/// <param name="data">The output packet</param>
/// <param name="go">A game object to extract data from</param>
private void WriteData(NetPacket.Factory data, GameObj go)
{
data.WriteUInt(go.ID);
data.WriteString(go.GetType().FullName);
data.WriteShort(go.hp);
data.WriteShort(go.mp);
data.WriteByte(go.state);
data.WriteByte(go.frame);
data.WriteFloat(go.dir);
data.WriteFloat(go.ang.X);
data.WriteFloat(go.ang.Y);
data.WriteFloat(go.spd.X);
data.WriteFloat(go.spd.Y);
data.WriteFloat(go.pos.X);
data.WriteFloat(go.pos.Y);
data.WriteFloat(go.fce.X);
data.WriteFloat(go.fce.Y);
// TODO: Add a member method into GameObj for writing/reading?
if (go is GEC)
{
GEC g = (GEC)go;
data.WriteString(g.gfx.Name);
data.WriteByte(g.GetPrefs());
}
else if (go is GPChain)
{
GPChain g = (GPChain)go;
data.WriteFloat(g.GetBoltDest().X);
data.WriteFloat(g.GetBoltDest().Y);
}
}
