[Custom Npcs 2] Skeleton System

[Pychnight]

Converted from https://github.com/Pychnight/Custom-Npcs-2/issues/16

The current skeleton system does not properly handle attachment.

• Certain attached npcs will spawn up to the server cap of 200 (Meteors)
• [ ] fixed issue

Killing attached npc seem cause problems

• attached npcs seem to respawn oddly.
• [ ] fixed issue

def OnCheckSpawn(player as TSPlayer , x as int, y as int):
    if FindCustomNpcs("PP06").Length<=6:
        return (AtSurfaceLevel(player) and 15 or 0)
    else:
        return 0

def OnSpawn(npc as CustomNpc):
    npc["hostdead"]=false
    npc["attach"]=false
    npc["Ability1_Cooldown"]=1600

def OnCollision(npc, player):
    npc["attach"]=true

def OnAiUpdate(npc as CustomNpc) as bool:
    ability1_timer = npc.GetVariable("Ability1_Cooldown", 0)

if npc["once"]==false:
    head = SpawnCustomNpc("PP06A", npc.Position + Vector2(0, 0))
    npc.AttachChild(head)
    host = npc.Parent
    npc["once"]=true

if npc.Npc.active == true and CustomIDContains("PP06"):
    pass

elif npc.Npc.active == false and CustomIDContains("PP06"):
    npc.Children[0].Npc.aiStyle = 1
    npc["hostdead"]=true

if npc.HasChildren == true:
    child = npc.Children[0]

if ability1_timer > 0:
    ability1_timer = ability1_timer - 1
    npc["Ability1_Cooldown"]=ability1_timer

if npc["Ability1_Cooldown"]==0: 
    npc.Children[0].TargetClosestPlayer()
    targetHead = npc.Children[0].Target
    position = targetHead.TPlayer.position
    if targetHead != null and npc.Children[0].HasLineOfSight(position):
        npc.Children[0].ShootProjectileAt(position, 188, 20, 5, 20)

    npc["Ability1_Cooldown"]=1600

if npc["hostdead"]==true and npc["attach"]==true and CustomIDContains("PP06A"):
    child.Center = child.Target.TPlayer.position 

return false

No eater of worlds examples

• this should be included as a example of how to use the skeleton system.
• [ ] include example

Find how terraria handles the skeleton hands npc and see if it's possible to attach this npc to other monsters without having it die..

• [ ] Research
• After researching is done, if it's possible let me know.