(#39) Unhardcode refresh rate

src/boomer.nim

@@ -286,6 +286,7 @@ proc main() =
       isEnabled: false,
       radius: 200.0)
 
+  let dt = 1.0 / rate.float
   while not quitting:
     var wa: TXWindowAttributes
     discard XGetWindowAttributes(display, win, addr wa)
@@ -308,7 +309,7 @@ proc main() =
           # delta is the distance the mouse traveled in a single
           # frame. To turn the velocity into units/second we need to
           # multiple it by FPS.
-          camera.velocity = delta * config.fps.float
+          camera.velocity = delta * rate.float
 
         mouse.prev = mouse.curr
 
@@ -383,7 +384,6 @@ proc main() =
       else:
         discard
 
-    let dt = 1.0 / config.fps.float
     camera.update(config, dt, mouse, screenshot,
                   vec2(wa.width.float32, wa.height.float32))
     flashlight.update(dt)
@@ -393,5 +393,6 @@ proc main() =
                     mouse, flashlight)
 
     glXSwapBuffers(display, win)
+    glFinish()
 
 main()

src/config.nim

@@ -4,13 +4,11 @@ type Config* = object
   scrollSpeed*: float
   dragFriction*: float
   scaleFriction*: float
-  fps*: int
 
 const defaultConfig* = Config(
   scrollSpeed: 1.5,
   dragFriction: 6.0,
   scaleFriction: 4.0,
-  fps: 60
 )
 
 macro parseObject(obj: typed, key, val: string) =

src/navigation.nim

@@ -1,4 +1,3 @@
-import math
 import config
 import la
 import image