high performance world drawing functions

can the devs implement drawing functions for world map drawing?
there is currently gui drawing functions but they are a little slow and do not scale according to camera or have depth to them.

I have been trying to make a lightning projectile but it seems that alot of the things I need to do this don't exist

Spoiler

things I have tried that do not work
- drawing gui lines
- drawing to multiple textures and creating particles out of them
- drawing to a map sized texture and creating a particle out of it

I suggest that the following be implemented..
- draw_pixel(Vec2f pos1, u32 color)
- draw_line(Vec2f pos1, Vec2f pos2, u32 color, u32 width)
- draw_circleloid(Vec2f pos1, u32 sides, u32 size, u32 color, bool outline)
- draw_ellipse(Vec2f pos1, Vec2f pos2, u32 color, bool outline)
- draw_rectangle(Vec2f pos1, Vec2f pos2, u32 color, bool outline)
- draw_triangle(Vec2f pos1, Vec2f pos2, Vec2f pos3, u32 color, bool outline)
- draw_poly(Vec2f[] poses, u32 color, bool outline, bool closed)

 

I wouldn't be surprised if GUI was slow, I've already seen quite a few HUD scripts and rendering in general take a relatively large part of the CPU time. Generally you will want to avoid GUI functions for anything that isn't GUI.
Can you define "not work"?
Using sprite layers seems to be the smart way to do it, because you can use render styles over them: CSprite::setRenderStyle and CSpriteLayer::setRenderStyle, see Enums.txt at line 310 for the available render styles. I'm also pretty sure this is what the Wizard Wars mod uses (and it looks superb).

 

thankyou @Asu
sprite layers I'm sure won't work since there is alot of points and lines involved a single lightning spell casts 4-7 lightning bolts which travel until they reach the end of the map of a solid tile or blob

 

@Geti that would be fine if it didn't look awful when you connected the rotated lines
take a close look at this the lines. the second one does not connect seamlessly it has gaps in the corners where the overlapping is not perfect. this is what it would look like if I did rotated sprites


I would need draw line functions so that I can draw the lines with perfect connection like on the left
drawing to chunks still probably wouldn't work because of blitting pixels one by one which takes alot of time. also I have no idea how to do chunk drawing.

world drawing would solve all of these issues. and would make things like this so much easier.

 

PLEASE PLEASE PLEASE PLEASE PLEASE

 

I now understand a little better what the problem is. I was messing a bit around with a progress bar and was never quite happy with the result, because of camera scaling and such.

Anyway. It seems for now, the idea about using sprites seem to be the only way to go. Instead of rotating sprites, you could manually (or programmatically) create your sprites for a set of fixed angles, and swap accordingly. That way you'll avoid gaps and antialising issues. You'll have to draw it yourself. You could possibly get away with just drawing the joints. Sounds like a lot of work though.

Some basic world drawing would be nice, I guess. I don't suppose it would be possible to open up all the existing gui stuff also for world drawing? Technically, it shouldn't be so different?

 

For things like the HUD, that is certainly the case. And for most menus and stuff, it is sufficient with a reference point from the world. But, some elements, such as progress bars follow world objects more than the rest of the GUI. Since they are part of the screen space, they don't scale with the zoom, and end up looking bad. As it is now, if you're not happy with it, you'll have to add some sprite layers and stuff, which is cumbersome.