/// <summary>
/// Adds a single bullet to the screen; should only be called from CreateOneWave.
/// </summary>
private Bullet CreateBullet(BulletType bulletType, Vector2 spawnPoint, float angle,
float speed, LevelColors colors)
{
switch (bulletType)
{
case BulletType.Normal:
return(new Spike(spawnPoint, speed, angle, colors.Normal));
case BulletType.Normal2:
return(new Spike(spawnPoint, speed, angle, colors.Normal2));
case BulletType.Homing:
throw new ArgumentException("Spawn homing bullets with CreateHomingBullet please");
case BulletType.Bubble:
return(new Bubble(spawnPoint, speed, angle, colors.Bubble));
case BulletType.Heart:
return(new Heart(spawnPoint, speed, angle));
case BulletType.Hug:
return(new Hug(spawnPoint, speed, angle, colors.Hug));
case BulletType.Error:
return(new ErrorBullet(spawnPoint, speed, angle));
default:
return(new Spike(spawnPoint, speed, angle, colors.Normal));
}
}
public Shot(XmlNode node, LevelColors colors)
{
Time = double.Parse(node.Attributes["time"].Value, Culture) * 1000;
var enemiesStr = node.Attributes["enemies"].Value.Split(',');
Enemies = Array.ConvertAll(enemiesStr, s => int.Parse(s, Culture) - 1);
BulletType = ParseBulletType(node.Attributes["bulletType"].Value);
Aim = ParseAim(node.Attributes["aim"].Value);
Offset0 = double.Parse(node.Attributes["offset0"].Value, Culture) * MathEx.DegToRad;
Speed0 = double.Parse(node.Attributes["speed0"].Value, Culture);
Angle0 = double.Parse(node.Attributes["angle0"].Value, Culture) * MathEx.DegToRad;
if (node.Attributes["amount0"] is null)
{
Amount0 = int.Parse(node.Attributes["amount"].Value, Culture); // special case for streams
}
else
{
Amount0 = int.Parse(node.Attributes["amount0"].Value, Culture);
}
if (BulletType == BulletType.Homing)
{
var lifespanAttrib = node.Attributes["lifespan"];
HomingLifespan = lifespanAttrib is null
? Homing.DefaultLifespan
: double.Parse(lifespanAttrib.Value, Culture) / 30 * 1000;
}
Color = GetBulletColor(BulletType, colors);
}
/// <summary>
/// Returns the color of the bullet type in a shot.
/// </summary>
private Color GetBulletColor(BulletType type, LevelColors colors)
{
return(type switch
{
BulletType.Normal => colors.Normal,
BulletType.Normal2 => colors.Normal2,
BulletType.Homing => colors.Homing,
BulletType.Bubble => colors.Bubble,
BulletType.Hug => colors.Hug,
BulletType.Heart => Color.Red,
_ => colors.Normal,
});
public void SetColors(LevelColors colors, Color backgroundColor)
{
Circle.FillColor = backgroundColor;
Circle.BorderColor = colors.Outline;
ScoreCircle.Radius = 0f;
ScoreCircle.FillColor = Util.GetActualScoreColor(colors.ScoreCircle);
ScoreCircle.BorderColor = colors.Outline;
SongPosCircle.Radius = 0f;
SongPosCircle.FillColor = colors.Background;
SongPosCircle.BorderColor = colors.Outline;
}
/// <summary>
/// Creates one wave of a shot.
/// </summary>
public List <Bullet> Create(Vector2 spawnPoint, float spawnerAngle, Vector2 playerCenter,
LevelColors colors)
{
var bullets = new List <Bullet>(Amount);
double waveAngle = spawnerAngle + (90 * MathEx.DegToRad);
if (Amount > 1)
{
waveAngle += Angle / -2;
}
if (Aim == Aim.Player)
{
float playerAngle = (float)Math.Atan2(
spawnPoint.Y - playerCenter.Y,
spawnPoint.X - playerCenter.X)
- spawnerAngle;
waveAngle += playerAngle;
}
MathEx.WrapAngle(waveAngle);
var angleStep = Angle / (Amount - 1);
for (int i = 0; i < Amount; i++)
{
var bulletAngle = waveAngle + Offset;
if (BulletType == BulletType.Homing)
{
bullets.Add(CreateHomingBullet(spawnPoint, (float)bulletAngle,
(float)Speed, (float)HomingLifespan, colors));
}
else
{
bullets.Add(CreateBullet(BulletType, spawnPoint, (float)bulletAngle,
(float)Speed, colors));
}
waveAngle += angleStep;
}
return(bullets);
}
private Bullet CreateHomingBullet(Vector2 spawnPoint, float angle, float speed,
float lifespan, LevelColors colors)
{
return(new Homing(spawnPoint, speed, angle, lifespan, colors.Homing));
}