protected override void BarrelMove(Tank tank)
{
// Advanced aiming
// vars
var player = ((MyGame)game).Player;
var targetTank = player.Tank;
var targetVelocityWhenShot = targetTank.Velocity + TimeLeftToShoot * targetTank.Acceleration;
if (targetVelocityWhenShot.sqrMagnitude >= player.MaxVelocity * player.MaxVelocity)
{
targetVelocityWhenShot = targetVelocityWhenShot.normalized * player.MaxVelocity;
}
var positionDelta = targetTank.Position - tank.Position;
// quadratic equation
var a = targetVelocityWhenShot.Dot(targetVelocityWhenShot) - Bullet.Speed * Bullet.Speed;
var b = 2f * targetVelocityWhenShot.Dot(positionDelta);
var c = positionDelta.Dot(positionDelta);
var delta = b * b - 4f * a * c;
if (delta <= 0f)
{
return;
}
var t = 2f * c / (Mathf.Sqrt(delta) - b);
if (t < 0f)
{
return;
}
// rotation
var aimTarget = targetTank.Position + t * targetVelocityWhenShot;
var desiredRotation = -tank.rotation + Vec2.Rad2Deg((float)Math.Atan2(aimTarget.y - tank.Position.y, aimTarget.x - tank.Position.x));
var deltaRotation = desiredRotation - tank.Barrel.rotation;
var shortestAngle = Mathf.Clamp(deltaRotation - Mathf.Floor(deltaRotation / 360f) * 360f, 0.0f, 360f);
if (shortestAngle > 180)
{
shortestAngle -= 360;
}
if (Math.Abs(tank.Barrel.rotation - desiredRotation) > 0.5)
{
tank.Barrel.rotation += shortestAngle * 0.10f;
}
attackIndicator.UpdateIndicator(TimeLeftToShoot);
}
protected override void BarrelMove(Tank tank)
{
// Basic aiming
var target = ((MyGame)game).Player.Tank;
var aimTarget = target.Position;
var desiredRotation = -tank.rotation + Vec2.Rad2Deg((float)Math.Atan2(aimTarget.y - tank.Position.y, aimTarget.x - tank.Position.x));
var delta = desiredRotation - tank.Barrel.rotation;
var shortestAngle = Mathf.Clamp(delta - Mathf.Floor(delta / 360f) * 360f, 0.0f, 360f);
if (shortestAngle > 180)
{
shortestAngle -= 360;
}
if (Math.Abs(tank.Barrel.rotation - desiredRotation) > 0.5)
{
tank.Barrel.rotation += shortestAngle * 0.10f;
}
attackIndicator.UpdateIndicator(TimeLeftToShoot);
}
