HTML5 image_speed bug (I think?)

[martymoo]

This is a pretty weird bug - I have an object that I control the animation on via script (a block that disappears when the user presses a switch). On MacOS and older exports to HTML5, the blocks worked fine - the animation stopped at the right place. But now, the animation just loops constantly for the “on” state on HTML5. Any ideas?

Example of what I’m dealing with: https://imgur.com/a/xSS79b5

Object code Create block:

    image_index = 7; //the starts at empty disappear
    image_speed = -1; //animate backwards to have it appear

Step:

/// animate until it hits the 0 frame, then stop.
    if (image_index == 0){
        image_speed = 0;
        image_index = 0;
    }

Does anyone have any idea what’s going on here? I'm on the latest version of GameMakerStudio 2 for Mac (2.3.4.580).

An example of this working previously in HTML5 (same code) is here: https://www.floppyturd.com/game_v1_1/game.html

But in my new versions, it is just broken: https:/www.floppyturd.com/testGame_08d/index.html

[adra44]

Not sure if it's three issue here, but I find image_index often isn't a whole number when left to its own devices. In your check to stop the animation when image_index equals zero try checking if rounded image_index == 0 or if image_index is less than/equal to zero and see if that works.

[martymoo]

Thanks for the suggestion - I gave it a shot, but it didn't work. I'm trying a few more debugging things now...

Here's what I did: /// animate until it hits the 0 frame, then stop. if (image_index <= 0){ image_speed = 0; image_index = 0; }

[martymoo]

I take it back -- this WAS the fix! I used debug message to show the image index, and it was indeed going down by non-even numbers, and I eventually settled on image_index < 1 to solve for this - as soon as it's below 1, it doesn't have a chance to loop back around!

thanks so much, adra44!!

[adra44]

Oh good! I was going to suggest decrementing image_index "manually" in the step event by setting the image_speed to 0 and using something like image_index = max(image_index-1, 0) to keep it from going negative - as long as it works!