[Solved] Creating a Multishot ability (adjusting arrow angles to match # of arrows fired)

[Uncle]

Hello, I'm terrible at math and wondering if anyone could help me with this trigger. I'm creating a Multishot ability that fires multiple projectiles towards a target point. I want the system to detect how many arrows are to be fired (a variable I want to be able to adjust freely) and then spread them over a 90 degree angle, with one arrow ALWAYS guaranteed to face the targeted point.

So an ideal setup would be that if you fired 3 arrows then one would go down the center, one would face the casters angle -45 degrees and the last one would face the casters angle +45 degrees. The way I have it setup in the trigger below can achieve something close to this but only for an EVEN numbers of arrows. I realize that when dealing with an even number of projectiles it will always look a little weird since there will be 1 extra arrow on either side of the hero, but as long as the center arrow is always aimed towards the targeted point then that's all I care about. This trigger is just an example so don't worry about the leaks and missing variables:

Spoiler: Trigger

• multishot test
  • Events
  • Conditions
  • Actions
    • -------- Starting Angle --------
    • Set TempReal1 = ((Angle from (Position of TempUnit1) to ProjectilePoint[(Custom value of TempUnit1)]) - 45.00)
    • -------- Angle Increments --------
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • HeroStatProjectiles[(Custom value of TempUnit1)] Equal to 1
      • Then - Actions
        • Set TempReal2 = 45.00
      • Else - Actions
        • Set TempReal2 = (90.00 / (Real(HeroStatProjectiles[(Custom value of TempUnit1)])))
    • -------- Create Projectiles --------
    • For each (Integer A) from 1 to HeroStatProjectiles[(Custom value of TempUnit1)], do (Actions)
      • Loop - Actions
        • Set ProjectileCount = (ProjectileCount + 1)
        • Set ProjectileAngle[ProjectileCount] = (TempReal1 + TempReal2)
        • Unit - Create 1 Projectile for TempPlayer1 at TempPoint1 facing ProjectileAngle[ProjectileCount] degrees
        • Set TempReal1 = (TempReal1 + TempReal2)

With the trigger above, if you fired 2 arrows and your hero was facing 90 degrees then the first arrow would face 90 degrees and the second would face 90 + 45 degrees.

 

[Pyrogasm]

If an odd number of arrows just divide 90 by arrowcount-1 to get the angular spacing between them; if an even number divide by arrowcount as if it was a 1-bigger odd-numbered arrow spread but leave off the last arrow on one side. This will unfortunately make the arrow spread slightly less than 90 degrees for even-numbered volleys; you could correct for this but IMO the difference would really be negligible as long as arrowcount is bigger than like 4.

• Set ARROW_COUNT = (Random integer between 2 and 10)
• Set ARROW_SPREAD = 90.00 //total number of degrees to cover
• If (All conditions) then (Actions) else (Actions)
  • If - Conditions
    • (ARROW_COUNT mod 2) equal to 0 //modulo here checks if ARROW_COUNT is even
  • Then - Actions
    • Set ANGLE_INC = (ARROW_SPREAD / ARROW_COUNT)
    • -------- ARROW_COUNT = 1 makes a special case here but I presume you don't care about that one --------
  • Else - Actions
    • Set ANGLE_INC = (ARROW_SPREAD / (ARROW_COUNT - 1))
• Set ANGLE = (angle from caster to target) + 45.00
• For each (Integer A) from 1 to ARROW_COUNT do (Actions)
  • Loop - Actions
    • Set POINT = (CASTER_LOC offset by 10.00 towards ANGLE degrees)
    • Unit - Create 1 Projectile for PLAYER at POINT facing ANGLE degrees
    • Set ANGLE = (ANGLE - ANGLE_INC)

Don't forget to clean your leaks.

 

[Uncle]

Thanks, works great. I'll have to make a special case for 1 but that should be fairly simple.