Change rendering start position

[nyovaya]

I think it would be senseful to allow setting the coordinate from where the renderer start drawing to the window. This could be useful in bigger scenes.

[bvssvni]

You can do this by transforming the coordinate system. See https://docs.rs/piston2d-graphics/0.26.0/graphics/trait.Transformed.html

Are you thinking about an easier way to do this?

[nyovaya]

@bvssni do I need to implement it myself for window? Or how do I use it?

[bvssvni]

let d = c.trans(x, y);

[nyovaya]

@bvssvni wouldn't that mean I need to use this function for every object I am going to draw?

[bvssvni]

No, you just use d instead of c as Context.

[nyovaya]

when using trans() is feels like the direction is inverted - the objects move up if its < 0 and down if its > 0 - is that so?

[bvssvni]

The y-axis is down by default. This is common in 2D graphical systems. You can change this too, using scale(1, -1), but then you need to move it down trans(0, -y) to the place you want origo.

[nyovaya]

I know that the y-axis goes down in 2D but if I increase y then y goes down should then the object not be renderer like cut off at the top and not move down? And only move down if decrease y?

[bvssvni]

This depends on whether you scale before or after.

[nyovaya]

I didnt use scaling.
trans() seems more like it causes the objects to "move" instead of changing the position from where the rendering starts.