Moving in an arc

Comments

• Hunnenkoenig Member Posts: 1,173

  February 2010

  There is that demo project with the cannon and the cannonball.
  
  Look at it. The cannonball flies an arc.
• jonmulcahy Member, Sous Chef Posts: 10,408

  February 2010

  thanks for the tip, but I believe that flies in an arc because it's using gravity, which I don't. But I think I've figured it out, I'll post the solution I came up with if anyone is interested once I'm done.
• Hunnenkoenig Member Posts: 1,173

  February 2010

  Sure we are interested
• sdpardue Member Posts: 110

  February 2010

  yes, please do post your solution. thanks!
• jonmulcahy Member, Sous Chef Posts: 10,408

  February 2010

  ok, it was actually pretty easy:
  
  I've got an actor called pipeBomb, in it I created two custom attributes, 'arc' with a default value of 1 and 'startY'
  
  for rules:
  
  change attribute self.startY to self.positionY (this sets the pipebomb's initial start value, needed to determine when it hits ground.
  
  Rotate clockwise at 150 (give it a spin)
  
  Arc:
  while self.Arc = 1
  move up at 150
  OTHERWISE move down at 150
  
  ArcTimer
  after .25
  change attribute self.Arc = 0
  
  MoveForward
  move right at 300
  
  finally, the rule to cause the explosion
  if self.Position.Y is < self.startY-10 (I subtracted 10 to make it hit ground)
  spawn actor Explosion
  after .1 seconds - destroy actor
  
  It works pretty good, it looks like the play is lobbing the bomb, and when it hits the ground, explodes.