[SOLVED] Issue with screen-to-world coordinate

Questions
#1

Hi,

I’m actually developing a small game for a smart screen with Windows OS.

We are testing the game with a mouse, but the mouse is not working :

  • First, when I activate Fullscreen mode in game.project, the mouse is not detected.
  • I used DefOS to fix the issue, but it still has problem. The mouse doesn’t work on certain parts of the screen / we can’t click on certain game objects. I don’t know what is causing this.

Edit : it appears that the issue is showing when the window changes size (fullscreen or maximized)

Is there a simple way to handle the mouse in fullscreen mode on Windows? Thank you in advance for your help.

#2

What do you mean by “the mouse is not working”, exactly?

Are you toggling fullscreen using DefOS?

#3

Sorry, I didn’t explain it well. When the game is fullscreen/maximized we can’t click on certain game objects, yet it works fine in window mode.

I’m toggling fullscreen with DefOS using defos.toggle_fullscreen(). Mouse interactions use Defold-input cursor script.

#4

certain game objects

Sounds like you’re trying to click on game objects, not GUI nodes, right? In that case, this is probably a screen-to-world coordinate mapping issue.

When the game is normal-sized, your mouse maps to the game world perfectly. However, when you resize the window, the screen is stretched. The game objects now appear in a different position on the screen, however they retain the same world coordinates as before. The mouse coordinates do not retain the same coordinates as before.

Are you using a custom camera like rendercam? If so, it comes with handy conversion functions to solve this problem.

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#5

Yes, I’m making a drag-and-drop mini-game and I decided to go with game objects instead of GUI nodes.

Sans titre
Sans titre1269×711 593 KB

Thank you very much for the explanation, it’s clear now. I’m not using rendercam but I will definitely check it.

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#6

I’ll drop a recommendation for Orthographic:

I don’t think Rendercam is actively supported anymore, though of course it remains a solid camera asset and anyone is free to pick it up again should it need updates.

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#7

Thank you :slight_smile: