public static string ToFriendlyString(this TopDownDirection direction)
{
switch (direction)
{
case TopDownDirection.Down:
return(nameof(TopDownDirection.Down));
case TopDownDirection.DownLeft:
return(nameof(TopDownDirection.DownLeft));
case TopDownDirection.DownRight:
return(nameof(TopDownDirection.DownRight));
case TopDownDirection.Left:
return(nameof(TopDownDirection.Left));
case TopDownDirection.Right:
return(nameof(TopDownDirection.Right));
case TopDownDirection.Up:
return(nameof(TopDownDirection.Up));
case TopDownDirection.UpLeft:
return(nameof(TopDownDirection.UpLeft));
case TopDownDirection.UpRight:
return(nameof(TopDownDirection.UpRight));
}
return(nameof(TopDownDirection.Down));
}
public static Microsoft.Xna.Framework.Vector3 ToVector(this TopDownDirection direction)
{
float diagonalLength = (float)System.Math.Cos(MathHelper.PiOver4);
switch (direction)
{
case TopDownDirection.Left: return(Vector3.Left);
case TopDownDirection.UpLeft: return(new Vector3(-diagonalLength, diagonalLength, 0));
case TopDownDirection.Up: return(Vector3.Up);
case TopDownDirection.UpRight: return(new Vector3(diagonalLength, diagonalLength, 0));
case TopDownDirection.Right: return(Vector3.Right);
case TopDownDirection.DownRight: return(new Vector3(diagonalLength, -diagonalLength, 0));
case TopDownDirection.Down: return(Vector3.Down);
case TopDownDirection.DownLeft: return(new Vector3(-diagonalLength, -diagonalLength, 0));
}
return(Vector3.Right);
}
public void SetAnimationChainFromVelocity(TopDownDirection aimingDirection, Weapon weapon)
{
string weaponAnimationName = null;
switch (weapon)
{
case Weapon.ShootingFire: weaponAnimationName = "Fireball"; break;
case Weapon.ShootingSkulls: weaponAnimationName = "Skull"; break;
}
SpriteInstance.CurrentChainName = weaponAnimationName + "_" + aimingDirection.ToFriendlyString();
var positionOffset = TopDownDirectionExtensions.ToVector(aimingDirection);
Position += positionOffset * OffsetRadius;
}
public static TopDownDirection FlipY(this TopDownDirection directionToFlip)
{
switch (directionToFlip)
{
case TopDownDirection.Left: return(TopDownDirection.Left);
case TopDownDirection.UpLeft: return(TopDownDirection.DownLeft);
case TopDownDirection.Up: return(TopDownDirection.Down);
case TopDownDirection.UpRight: return(TopDownDirection.DownRight);
case TopDownDirection.Right: return(TopDownDirection.Right);
case TopDownDirection.DownRight: return(TopDownDirection.UpRight);
case TopDownDirection.Down: return(TopDownDirection.Up);
case TopDownDirection.DownLeft: return(TopDownDirection.UpLeft);
}
throw new System.Exception();
}
public static string GenerateChainName(PrimaryActions primaryAction, TopDownDirection direction)
{
return($"{primaryAction.ToFriendlyString()}{direction.ToFriendlyString()}");
}
