Added wasd-game exercise

I am most definitely getting the hang of the Gocui library, this is fun

wasd-game/go.mod

@@ -0,0 +1,11 @@
+module wasd-game
+
+go 1.22.2
+
+require github.com/jroimartin/gocui v0.5.0
+
+require (
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/nsf/termbox-go v1.1.1 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+)

wasd-game/go.sum

@@ -0,0 +1,10 @@
+github.com/jroimartin/gocui v0.5.0 h1:DCZc97zY9dMnHXJSJLLmx9VqiEnAj0yh0eTNpuEtG/4=
+github.com/jroimartin/gocui v0.5.0/go.mod h1:l7Hz8DoYoL6NoYnlnaX6XCNR62G7J5FfSW5jEogzaxE=
+github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
+github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/nsf/termbox-go v1.1.1 h1:nksUPLCb73Q++DwbYUBEglYBRPZyoXJdrj5L+TkjyZY=
+github.com/nsf/termbox-go v1.1.1/go.mod h1:T0cTdVuOwf7pHQNtfhnEbzHbcNyCEcVU4YPpouCbVxo=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=

wasd-game/main.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"fmt"
+	"github.com/jroimartin/gocui"
+	"log"
+)
+
+func main() {
+	g, err := gocui.NewGui(gocui.OutputNormal)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+
+	g.SetManagerFunc(layout)
+	g.Mouse = true
+	g.Cursor = true
+	initKeybindings(g)
+
+	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
+		log.Panicln(err)
+	}
+}
+
+var (
+	playerX int = 0
+	playerY int = 0
+)
+
+func layout(g *gocui.Gui) error {
+
+	maxX, maxY := g.Size()
+	if player, err := g.SetView("player", maxX/2+7+playerX, maxY/2+2-playerY, maxX/2+9+playerX, maxY/2+4-playerY); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		player.Frame = false
+		player.BgColor = gocui.ColorRed
+		fmt.Fprintln(player, "@")
+	}
+
+	return nil
+}
+
+func quit(*gocui.Gui, *gocui.View) error {
+	return gocui.ErrQuit
+}
+
+func initKeybindings(g *gocui.Gui) error {
+
+	var movementStep int = 1
+
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.SetKeybinding("", 'a', gocui.ModNone,
+		func(g *gocui.Gui, v *gocui.View) error {
+			playerX -= movementStep
+			return nil
+		}); err != nil {
+	}
+
+	if err := g.SetKeybinding("", 'd', gocui.ModNone,
+		func(g *gocui.Gui, v *gocui.View) error {
+			playerX += movementStep
+			return nil
+		}); err != nil {
+	}
+
+	if err := g.SetKeybinding("", 'w', gocui.ModNone,
+		func(g *gocui.Gui, v *gocui.View) error {
+			playerY += movementStep
+			return nil
+		}); err != nil {
+	}
+
+	if err := g.SetKeybinding("", 's', gocui.ModNone,
+		func(g *gocui.Gui, v *gocui.View) error {
+			playerY -= movementStep
+			return nil
+		}); err != nil {
+	}
+
+	return nil
+}