Changing camera size

[Joe Banko]

I have 2 scripts:
zoom_in.gml

var cam = view_get_camera(0);
var xx = camera_get_view_width(cam);
if xx == 1024 {
camera_set_view_size(view_camera[0],512,256);
}
if xx == 2048 {
camera_set_view_size(view_camera[0],1024,512)
}

and zoom_out.gml

var cam = view_get_camera(0);
var xx = camera_get_view_width(cam);
if xx == 1024 {
camera_set_view_size(view_camera[0],2048,1024);
}
if xx == 512 {
camera_set_view_size(view_camera[0],1024,512);
}

zoom_in is called when I press pagedown and zoom_out is called when I press pageup. But the code never executes anything but the xx == 1024 branch. I am baffled by this and have tried using an else if between the two statements as well as changing the ordering i.e. in zoom_in checking xx == 2048 before xx == 1024, I was still getting the same result. Going into the debugger I found that xx always equalled 1024 even though on the screen I could see the changes going between 2048 and 512.

Any ideas/suggestions?

Thanks, Joe B

 

[Psycho_666]

Last time I tried changing view size on the fly it didn't work.
Setting view size only works at room start. I have absolutely no idea how you can zoom in and out in real time, but I resized my views using a transitional room. I go to the new room and when I come back - I set the new view size.

 

[HayManMarc]

There's nothing in your example showing how the xx variable is being changed and manipulated. You will need to show the code that changes the xx value.

Wait... i see it. Its your view width. You need to track down why your camera_get_view_width is not changing.

 

[Joe Banko]

Thank you gentlemen!
@Psycho_666 I can get it to zoom in and out but what I think is happening is the value I get from camera_get_view_width is always the original value setup in the room editor, 1024. In the docs it says "Note that this function is only valid for cameras created using camera_create_view() or for those added in the room editor." So I don't think there is a way to get the CURRENT view width which is a bummer. But I'm just on my first real foray into DMS2 from "scratch" using stuff I picked up in a tutorial and examples I've gotten from docs and this forum. Thanks again, appreciated!

Joe B

 

[HayManMarc]

Heres a pretty good tut on cameras...

[GMS2] Meet the Camera System – MaddeStudios

maddestudiosgames.com