hot code reloading examples

examples/hot_code_reloading/bounce.v

@@ -0,0 +1,88 @@
+// Build this example with
+// v -live bounce.v 
+module main
+
+import gx
+import gl
+import gg
+import glfw
+import time
+
+struct Game {
+mut: 
+	vg       *gg.GG
+	x        int
+	y        int
+	dy       int
+	dx       int
+	height   int
+	width    int
+	main_wnd *glfw.Window
+	draw_fn  voidptr
+}
+
+fn main() {
+	glfw.init()
+	width := 600
+	height := 300
+	mut game := &Game{
+		vg: 0 
+		dx: 3 
+		dy: 3 
+		height: height 
+		width: width 
+	}
+	mut window := glfw.create_window(glfw.WinCfg {
+		width: width,
+		height: height,
+		borderless: false,
+		title: 'Hot code reloading demo'
+		ptr: game 
+	}) 
+	//window.onkeydown(key_down)
+	game.main_wnd = window 
+	window.make_context_current()
+	gg.init() 
+	game.vg = gg.new_context(gg.Cfg {
+		width: width
+		height: height
+		font_size: 20
+		use_ortho: true
+	})
+	println('Starting game loop...')
+	go game.run()
+	for {
+		gl.clear()
+		gl.clear_color(255, 255, 255, 255)
+		game.draw()
+		window.swap_buffers()
+		glfw.wait_events()
+	}
+}
+
+const (
+	W = 50
+)
+
+//[live] TODO segfaults
+fn (ctx &Game) draw() {
+	ctx.vg.draw_rect(ctx.x, ctx.y, W, W, gx.rgb(0, 0, 255))
+}
+
+fn (ctx mut Game) run() {
+	for {
+		ctx.x += ctx.dx
+		ctx.y += ctx.dy
+		if ctx.y >= ctx.height - W || ctx.y <= 0 {
+			ctx.dy = - ctx.dy
+		}
+		if ctx.x >= ctx.width - W || ctx.x <= 0 {
+			ctx.dx = - ctx.dx
+		}
+		// Refresh
+		time.sleep_ms(30)
+		glfw.post_empty_event()
+	}
+}
+
+

examples/hot_code_reloading/message.v

@@ -0,0 +1,22 @@
+// Build this example with
+// v -live message.v 
+module main
+
+import time
+import os
+
+[live] 
+fn print_message() {
+	println('Hello! Modify this message while the program is running.') 
+}
+
+fn main() {
+	for {
+		print_message()
+		time.sleep_ms(500)  
+	}
+}
+
+
+
+