public static float GetStartingSpeed(
Comps.Projectile.Kind kind
)
{
switch (kind)
{
case Comps.Projectile.Kind.Arrow:
return(Global.config.ArrowSpeed);
case Comps.Projectile.Kind.Bomb:
return(Global.config.BombSpeed);
case Comps.Projectile.Kind.Boomerang:
return(Global.config.BoomerangSpeed);
case Comps.Projectile.Kind.RedKey:
case Comps.Projectile.Kind.BlueKey:
case Comps.Projectile.Kind.GreenKey:
case Comps.Projectile.Kind.PurpleKey:
case Comps.Projectile.Kind.YellowKey:
return(Global.config.KeySpeed);
case Comps.Projectile.Kind.SwordSlash:
return(Global.config.SwordSlashSpeed);
case Comps.Projectile.Kind.Fireball:
return(Global.config.FireballSpeed);
default:
throw new NotImplementedException();
}
}
private static bool CanUnlock(
Comps.Projectile.Kind projectileKind,
Comps.Door.Kind doorKind
)
{
switch (doorKind)
{
case Comps.Door.Kind.Red:
return(projectileKind == Comps.Projectile.Kind.RedKey);
case Comps.Door.Kind.Green:
return(projectileKind == Comps.Projectile.Kind.GreenKey);
case Comps.Door.Kind.Blue:
return(projectileKind == Comps.Projectile.Kind.BlueKey);
case Comps.Door.Kind.Purple:
return(projectileKind == Comps.Projectile.Kind.PurpleKey);
case Comps.Door.Kind.Yellow:
return(projectileKind == Comps.Projectile.Kind.YellowKey);
default:
throw new ArgumentException("Invalid door kind");
}
}
private static bool IsVisible(Comps.Projectile.Kind projectileKind)
{
switch (projectileKind)
{
case Comps.Projectile.Kind.SwordSlash:
return(false);
default:
return(true);
}
}
private static bool IsDamaging(
Comps.Projectile.Kind kind
)
{
switch (kind)
{
case Comps.Projectile.Kind.RedKey:
case Comps.Projectile.Kind.BlueKey:
case Comps.Projectile.Kind.GreenKey:
case Comps.Projectile.Kind.PurpleKey:
case Comps.Projectile.Kind.YellowKey:
return(false);
default:
return(true);
}
}
private static Tick GetLifetime(
Comps.Projectile.Kind kind
)
{
switch (kind)
{
case Comps.Projectile.Kind.RedKey:
case Comps.Projectile.Kind.BlueKey:
case Comps.Projectile.Kind.GreenKey:
case Comps.Projectile.Kind.PurpleKey:
case Comps.Projectile.Kind.YellowKey:
case Comps.Projectile.Kind.SwordSlash:
return(1);
default:
return(ToTicks(TimeSpan.FromSeconds(2)));
}
}
public static Entity Create(
Comps.Projectile.Kind kind,
Entity owner,
Ecs.Registry registry
)
{
// Assume that `owner` has position and orientation
// components
var playerPositionComp = registry
.GetComponentUnsafe <Comps.Position>(owner);
var playerRectangleComp = registry
.GetComponentUnsafe <Comps.Shapes.Rectangle>(owner);
var playerOrientationComp = registry
.GetComponentUnsafe <Comps.Orientations.Cardinal>(owner);
var playerPosRectangle = new Physical.PosRectangle(
playerPositionComp.data,
playerRectangleComp.data
);
// Create projectile
Physical.Rectangle rectangle = new Physical.Rectangle(
16.0f * 4,
16.0f * 4
);
PhysicalVector2 position = GetStartingPosition(
playerPosRectangle,
playerOrientationComp.data,
rectangle
);
var projectileEntity = registry.CreateEntity();
registry.AssignComponent(
projectileEntity,
new Comps.Shapes.Rectangle {
data = rectangle
}
);
registry.AssignComponent(
projectileEntity,
new Comps.Position {
data = position
}
);
registry.AssignComponent(
projectileEntity,
(Comps.Orientations.Cardinal)playerOrientationComp.Clone()
);
PhysicalVector2 velocity =
playerOrientationComp.data.GetPhysicalVector2() *
GetStartingSpeed(kind);
registry.AssignComponent(
projectileEntity,
new Comps.Velocity {
data = velocity,
decay = 1.0f
}
);
registry.AssignComponent(
projectileEntity,
new Comps.Projectile {
kind = kind,
ownerId = owner.id
}
);
if (IsDamaging(kind))
{
registry.AssignComponent(
projectileEntity,
new Comps.Damaging {
damage = 1,
attackerId = owner.id
}
);
}
registry.AssignComponent(
projectileEntity,
new Comps.Lifetime {
ticks = GetLifetime(kind)
}
);
registry.AssignComponent(
projectileEntity,
new Comps.Solid {
ephemeral = true
}
);
return(projectileEntity);
}
