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44 lines
1.2 KiB
Nim

import strutils
type Config* = object
min_scale*: float
scroll_speed*: float
drag_friction*: float
scale_friction*: float
const defaultConfig* = Config(
min_scale: 0.01,
scroll_speed: 1.5,
drag_friction: 6.0,
scale_friction: 4.0,
)
proc loadConfig*(filePath: string): Config =
result = defaultConfig
for rawLine in filePath.lines:
let line = rawLine.strip
if line.len == 0 or line[0] == '#':
continue
let pair = line.split('=', 1)
let key = pair[0].strip
let value = pair[1].strip
case key
of "min_scale":
result.min_scale = parseFloat(value)
of "scroll_speed":
result.scroll_speed = parseFloat(value)
of "drag_friction":
result.drag_friction = parseFloat(value)
of "scale_friction":
result.scale_friction = parseFloat(value)
else:
quit "Unknown config key `$#`" % [key]
proc generateDefaultConfig*(filePath: string) =
var f = open(filePath, fmWrite)
defer: f.close
f.write("min_scale = ", defaultConfig.min_scale, "\n")
f.write("scroll_speed = ", defaultConfig.scroll_speed, "\n")
f.write("drag_friction = ", defaultConfig.drag_friction, "\n")
f.write("scale_friction = ", defaultConfig.scale_friction, "\n")