image "fun"

exercise-images.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+    "image"
+    "image/color"
+    "golang.org/x/tour/pic"
+)
+
+type Image struct{}
+
+func (i Image) ColorModel() color.Model {
+    return color.RGBAModel
+}
+
+func (i Image) Bounds() image.Rectangle {
+    return image.Rect(0, 0, 100, 100)
+}
+
+func (i Image) At(x, y int) color.Color {
+    v := uint8(x) ^ uint8(y)
+    return color.RGBA{v, v, 255, 255}
+}
+
+func main() {
+    m := Image{}
+    pic.ShowImage(m)
+}

images.go

@@ -0,0 +1,12 @@
+package main
+
+import (
+    "fmt"
+    "image"
+)
+
+func main() {
+    m := image.NewRGBA(image.Rect(0, 0, 100, 100))
+    fmt.Println(m.Bounds())
+    fmt.Println(m.At(0, 0).RGBA())
+}