pin point precision and sprite placement

[Eatrentpie]

I am working on a mini game and would like to match my sprite placement to predetermined screen coordinates that I have figured out from a background image. unfortunately the coordinates on the image don't match those on the image . there appear to be MARGINS that such that renpy seems to insist that 0,0 is actually quite a ways from the screen it's not going from the center either so I can't navigate from that. anybody got any clue how I can get renpy to rever to a traditional x,y coordinate system
[edited for further description]
I'm using the sprite manager to place the sprites

[VimislikArt]

When you're setting your transform properties, add the statement "subpixel True". This changes how Ren'py interprets the value behind xpos and ypos. You may have to adjust the xanchor and yanchor values depending on how you were calculating the positioning (I think ren'py defaults to the top left of images, so this applies to the xpos and ypos as well).

For instance, this would move the image 500 pixels to the right, and 300 pixels down, but based on the bottom left of the image.

Code: Select all

show exampleimage:
	subpixel True xpos 500 ypos 300 yanchor 1.0

[Per K Grok]

I am working on a mini game and would like to match my sprite placement to predetermined screen coordinates that I have figured out from a background image. unfortunately the coordinates on the image don't match those on the image . there appear to be MARGINS that such that renpy seems to insist that 0,0 is actually quite a ways from the screen it's not going from the center either so I can't navigate from that. anybody got any clue how I can get renpy to rever to a traditional x,y coordinate system

I almost exclusively place my sprites using xpos and ypos, and I don't recognize this problem.

I often use a screen like this to check positions in the screen in-game.

Code: Select all

default mx=0
default my=0

screen showPos():
    text str(mx) + ":" + str(my)

    timer 0.05 action [SetVariable("mx",renpy.get_mouse_pos()[0]), SetVariable("my", renpy.get_mouse_pos()[1])] repeat True


label start:
    show screen showPos

If you use this do you experience the margin effect?

One possible explanation of the "margin effect" could be that the image contains more "empty space" around your character than you take into the consideration. Possibly the image top left corner is at the screen 0,0 but there is space in between the character and the screen sides because there are "empty space" in the image.

[Eatrentpie]

I'm using the spritemanager so not sure if the above suggestions will work.
it's the same thing that runs the stars in the starfield demo.

actually I know that wont work.

[gas]

Check the code to verify the SpriteManager got no borders.
The SpriteManager can define an area of rendering, and coordinates of Sprites are relative to that, not the entire screen.
Posting the code here should help.

[Eatrentpie]

no borders are ever defined at initialization and the manager uses the entire 1920 by 1080 screen it just places things funny