nimraylib_now basic game loop

raylib_basic_game_loop.nim

# Basic Game Loop
# Engine/Framework: Raylib (https://www.raylib.com)
# based on https://gist.github.com/SemanticDevice/6f57b69c50c292d87c626e15de504e6b#file-raylib_basic_game_loop-c

import nimraylib_now

const WIN_WIDTH_PX = 800   # Main window width in pixels
const WIN_HEIGHT_PX = 640  # Main window height in pixels

proc gameInitialize()
proc gameTerminate()
proc gameDraw()
proc gameProcessInput()
proc gameUpdate()
proc isGameRunning(): bool


when isMainModule:
  gameInitialize()
  while isGameRunning():
    gameProcessInput()
    gameUpdate()
    gameDraw()
  gameTerminate()


proc gameInitialize() =
  setTargetFPS 60
  initWindow(WIN_WIDTH_PX, WIN_HEIGHT_PX, "Basic Game Loop: Raylib")


proc gameTerminate() = 
    closeWindow()

proc gameDraw() =
  beginDrawing:
    clearBackground(Raywhite)


proc gameProcessInput() = discard
proc gameUpdate() = discard

proc isGameRunning(): bool = not windowShouldClose()