Some more events for event-driven programming

[curioustorvald]

• World Click event (primary click, secondary click)

  • managed by ingame?
  • Won't be fired if the local screen area is obstructed by UI (to prevent a case where you click on the UI and you also fires a weapon)

• Collision event

  • managed by actor-with-phys

[curioustorvald]

World Click event -- there's already such event on the GameItem. Modify it such that:

1. Ingame fires PrimaryClick event on a held item (something like: Ingame.Player.inventory.getHeldItem.primaryUse(some more vars))
   • (condition of event firing is managed by Ingame)
2. The held item does the job of "using" itself

[curioustorvald]

fun CollisionEvent(this: Myself, other: List of CollisionInfo)

CollisionInfo: collision with other actor | world tile (tile number?)