v/examples/game_of_life/life_gg.v

module main

import gg
import glfw
import gx
import automaton

const (
	screenWidth = 800
	screenHeight = 600
	filled_color = gx.Blue
)

fn new_graphics() &gg.GG {
	glfw.init_glfw()
	return gg.new_context(gg.Cfg{
		width: screenWidth
		height: screenHeight
		use_ortho: true
		create_window: true
		resizable: false
		window_title: 'v life (with gg, glfw, gx)'
		window_user_ptr: 0
	})
}

const (
	graphics = new_graphics()
)

[live]
fn print_automaton(a &automaton.Automaton){
	gg.clear(gx.White)
	square_size := 18
	for y := 1; y<a.field.maxy; y++ {
		for x := 1; x<a.field.maxx; x++ {
			cell := a.field.get(x,y)
			if cell == 1 {
				graphics.draw_rect( square_size*x, square_size*y, square_size, square_size, filled_color )
			}
		}
	}
}

fn main() {
	mut a := automaton.gun()
	for {
		if graphics.window.should_close() { graphics.window.destroy() break }
		gg.post_empty_event() // needed so the animation does not stop
		///////////////////////////////////////////////
		a.update()
		print_automaton(a)		
		graphics.render()
	}
}