itch.io

Hi there! I've send you and email but just so this doesn't hung unanswered:

It's basically matter of keeping rotation value for drawing and target rotation separate values.

so something like this (pseudocode):

update:
    rDraw = rDraw + (rTarget - r) / 2
triggerRotate:
    rTarget = rTarget + 1 // 1 instead of PI/2 directly so getDirection is simpler
draw:
    draw(image, x, y, rDraw * PI/2)
getDirectionOfTheBulletAfterItIsReflected:
  let t = fmod(floor(rTarget), 4)
  if (t==0 and fromX==1) or (t==0 and fromY==-1) or (t==2 and fromY==1) or (t==2 and fromX==-1) then
    return -fromY, -fromX
  else if (t==1 and fromY==1) or (t==1 and fromX==1) or (t==3 and fromY==-1) or (t==3 and fromX==-1) then
    return fromY, fromX
  else
    return 0, 0