Get a block to move with SDL2 and GoLang

blockmove.go

package main

import (
	"fmt"
	"github.com/veandco/go-sdl2/sdl"
	"os"
)

var winTitle string = "Go-SDL2 Events"
var winWidth, winHeight int = 800, 600


func main() {
	var window *sdl.Window
	var err error

	if 0 != sdl.Init(sdl.INIT_EVERYTHING) {
		panic(sdl.GetError())
	}
	defer sdl.Quit()

	window,err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to create window: %s\n", err)
		os.Exit(1)
	}
	defer window.Destroy()

	var renderer *sdl.Renderer
	renderer,err = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to create renderer: %s\n", err)
		os.Exit(2)
	}
	defer renderer.Destroy()

	renderer.SetDrawColor(0,255,0,255)
	renderer.Clear()

	var event sdl.Event
	var running bool
	rect := sdl.Rect{0, 0, 200, 50}

	running = true
	for running {
		renderer.SetDrawColor(0,255,255,255)
		renderer.FillRect(&rect)
		renderer.Present()

		for event = sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
			switch t := event.(type) {
			case *sdl.QuitEvent:
				running = false
			case *sdl.KeyUpEvent:
				fmt.Printf("[%d ms] Keyboard\ttype:%d\tsym:%c\tmodifiers:%d\tstate:%d\trepeat:%d\n",
					t.Timestamp, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat)
				rect.X+=10
			}
		}
		renderer.SetDrawColor(255,0,0,255)
		renderer.Clear()
	}

	//renderer.Destroy()
	//window.Destroy()
	//sdl.Quit()
}