add code for the guide 06

examples/guide/06_drawing_shapes_with_imdraw/main.go

@@ -0,0 +1,53 @@
+package main
+
+import (
+	"math"
+
+	"github.com/faiface/pixel"
+	"github.com/faiface/pixel/imdraw"
+	"github.com/faiface/pixel/pixelgl"
+	"golang.org/x/image/colornames"
+)
+
+func run() {
+	cfg := pixelgl.WindowConfig{
+		Title:  "Pixel Rocks!",
+		Bounds: pixel.R(0, 0, 1024, 768),
+		VSync:  true,
+	}
+	win, err := pixelgl.NewWindow(cfg)
+	if err != nil {
+		panic(err)
+	}
+
+	imd := imdraw.New(nil)
+
+	imd.Color(colornames.Blueviolet)
+	imd.EndShape(imdraw.RoundEndShape)
+	imd.Push(pixel.V(100, 100), pixel.V(700, 100))
+	imd.EndShape(imdraw.SharpEndShape)
+	imd.Push(pixel.V(100, 500), pixel.V(700, 500))
+	imd.Line(30)
+
+	imd.Color(colornames.Limegreen)
+	imd.Push(pixel.V(500, 500))
+	imd.Circle(300, 50)
+	imd.Color(colornames.Navy)
+	imd.Push(pixel.V(200, 500), pixel.V(800, 500))
+	imd.Ellipse(pixel.V(120, 80), 0)
+
+	imd.Color(colornames.Red)
+	imd.EndShape(imdraw.RoundEndShape)
+	imd.Push(pixel.V(500, 350))
+	imd.CircleArc(150, -math.Pi, 0, 30)
+
+	for !win.Closed() {
+		win.Clear(colornames.Aliceblue)
+		imd.Draw(win)
+		win.Update()
+	}
+}
+
+func main() {
+	pixelgl.Run(run)
+}