Scratch

Hello, all. This should be a straightforward issue that doesn't require me posting blocks, but if I'm wrong, please tell me. I'll subsequently post my coding.

I'm creating a basic platformer. Strangely, my biggest problem that has arisen is in the form of playing an animation on cue. I have set up a broadcast that will switch the character's sprite between the running costumes. When my character moves left or right (using an 'if key pressed? statement'), that broadcast is carried out - for every single frame. So, the running animation isn't actually played - only the first costume is shown because the broadcast is run every single frame. Then, whenever the keys are released, the character begins the running animation and does so indefinitely (and when I try to put an 'else' regarding if the key is not pressed, the character won't move at all). I've tried countless rectifications, all to no avail. It is very frustrating.

There has to be a straightforward fix to this; I know it. Any suggestions?

Here's an example of my blocks, using the right arrow key command:

forever
  if key [right arrow] pressed?
    point in direction (90)
    move [runSpeed] steps
    if [nowRunning] = (0)
      set [nowRunning] to (1)
      broadcast [running]
  end
end

when I receive [running]
repeat until [nowrunning] = (0)
  wait [runanimDelay] secs
  switch to costume [run1]
  repeat (3)
    wait [runanimDelay] secs
    next costume
  end
end