public Vector2 GetMissilePosition(int time)
{
var t = Math.Max(0, Utils.GameTimeTickCount + time - StartTick - SpellData.Delay);
int x;
if (SpellData.MissileAccel == 0)
{
x = t * SpellData.MissileSpeed / 1000;
}
else
{
var t1 = (SpellData.MissileAccel > 0
? SpellData.MissileMaxSpeed
: SpellData.MissileMinSpeed - SpellData.MissileSpeed) * 1000f / SpellData.MissileAccel;
x = t <= t1
? (int)
(t * SpellData.MissileSpeed / 1000d + 0.5d * SpellData.MissileAccel * Math.Pow(t / 1000d, 2))
: (int)
(t1 * SpellData.MissileSpeed / 1000d + 0.5d * SpellData.MissileAccel * Math.Pow(t1 / 1000d, 2) +
(t - t1) / 1000d *
(SpellData.MissileAccel < 0 ? SpellData.MissileMaxSpeed : SpellData.MissileMinSpeed));
}
t = (int)Math.Max(0, Math.Min(CollisionEnd.Distance(Start), x));
return(Start + Direction * t);
}
/// <summary>
/// Returns the missile position after time time.
/// </summary>
public Vector2 GetMissilePosition(int time)
{
var t = Math.Max(0, Environment.TickCount + time - StartTick - SpellData.Delay);
t = (int)Math.Max(0, Math.Min(CollisionEnd.Distance(Start), t * SpellData.MissileSpeed / 1000));
return(Start + Direction * t);
}
/// <summary>
/// Returns the missile position after time time.
/// </summary>
public Vector2 GetMissilePosition(int time)
{
var t = Math.Max(0, Utils.TickCount + time - StartTick - SpellData.Delay);
var x = 0;
// Missile with acceleration = 0.
if (SpellData.MissileAccel == 0)
{
x = t * SpellData.MissileSpeed / 1000;
}
// Missile with constant acceleration.
else
{
var t1 = (SpellData.MissileAccel > 0
? SpellData.MissileMaxSpeed
: SpellData.MissileMinSpeed - SpellData.MissileSpeed) * 1000f / SpellData.MissileAccel;
if (t <= t1)
{
x = (int)(t * SpellData.MissileSpeed / 1000d + 0.5d * SpellData.MissileAccel * Math.Pow(t / 1000d, 2));
}
else
{
x = (int)(t1 * SpellData.MissileSpeed / 1000d + 0.5d * SpellData.MissileAccel * Math.Pow(t1 / 1000d, 2)
+ (t - t1) / 1000d * (SpellData.MissileAccel < 0 ? SpellData.MissileMinSpeed : SpellData.MissileMaxSpeed));
}
}
t = (int)Math.Max(0, Math.Min(CollisionEnd.Distance(Start), x));
return(Start + Direction * t);
}
public void OnCollisionExit(Collision collision)
{
CollisionEnd.Invoke(collision);
}
