Is it possible to save multiple snapshots of a drawing canvas?

The drawing canvas has an action to save a snapshot, and there is another action which load back the saved snapshot, it there a way to have multiple snapshots of the canvas and load them back in with a tag or index? I tried saving the drawing canvas json and then loading from it but that does not hold image information,

Yes, you can add "DrawingCanvas Save Image" action, and then in "DrawingCanvas on saved image" event use DrawingCanvas.SavedImageURL expression - it will contain your image data. You can do whatever you want with this data - load to sprite, another canvas, save to local storage etc.

You are right, there seems to be no direct way to load image to canvas. But you can use a sprite - load SavedImageURL string into the sprite. Then paste the sprite onto canvas. I tested this and it works.

It's all good, I created a simple addon that does what i need. I'll release it when i get it ready. thanks =)

it depends where you are getting your image from? for my particular case it was not an external image, the image would be drawn using the drawing canvas action, then i would use the snapshot action. then i had a custom plugin that would take that the snapshot data and serialize it. then i can store the data in local storage. my custom plugin also could load back that serialized data and load it back to the snapshot. i have not used the new binary plugin not sure if that might help store the data some how?

I get my image with a file selector with a URL, it's to make a game or the player create his game, so he has to load images and sounds and other things, he create his game this way....

Example: He loads an image of his choice, to put it on the stage, with a sprite for this purpose, to create this scene, he creates his scenery with images that he must import, sounds, etc...

But it has to be persistent, I create a game to create a game ^^

drive.google.com/open

Try the project, put images on the stage, save the game (Watch at scene 3), change the images of the scenes, reload the game, the images are not loaded.

piranha305 Nice demo, thanks! Do you know how to get binary data (Base64) from an existing sprite, or from drawing canvas?

dop2000 here is a simple sample of getting base64 from drawing canvas

https://drive.google.com/open?id=1ynDDcouZA7dbulP9jTSkCUgWAlh4MOex

for a sprite it's a bit tricky since the sprite does not expose it's image data, you would have to paste it to the drawing canvas and follow a similar pattern to get the base64. the only plugin i know that gets the base64 string is the binary plugin. so if you can somehow get the image in there you could request the base64 representation of the image.

Oh, so you can use AJAX to extract image data from canvas. Good to know, thanks!

so right now you can only load an image from a sprite, if there was an expression to save the image as base64, it would make it a much nicer experience to transport data between all these plugins. I am just not sure how that would work, it would have to save all the animation data as well

I posted a suggestion to include this into Binary Data plugin. You can leave a comment if you have something to add or maybe have a better idea:

construct3.ideas.aha.io/ideas/C3-I-762

piranha305 Thank you very much for your example !