first commit

gogame/color/color.go

@@ -0,0 +1,36 @@
+package color
+
+//import "github.com/veandco/go-sdl2/sdl"
+
+
+type Color struct {
+	R uint32
+	G uint32
+	B uint32
+	A uint32
+}
+
+func (c *Color) ToHex() int {
+	return int( c.A<< 24 | c.R << 16 | c.G << 8 | c.B )
+}
+
+func (c *Color) ToBytes() []byte {
+	bytes := make([]byte,4)
+	bytes[0] = byte(c.R)
+	bytes[1] = byte(c.G)
+	bytes[2] = byte(c.B)
+	bytes[3] = byte(c.A)
+	return bytes
+}
+
+func (c *Color) RGBA() (r, g, b, a uint32) {
+  r = uint32(c.R)
+  r |= r << 8
+  g = uint32(c.G)
+  g |= g << 8
+  b = uint32(c.B)
+  b |= b << 8
+  a = uint32(c.A)
+  a |= a << 8
+  return
+}

gogame/color/color_test.go

@@ -0,0 +1,14 @@
+package color
+
+// > go test color.go color_test.go  -v
+// Or
+// > go test -v
+// to test all test files
+
+import "testing"
+
+func TestColor(t *testing.T) {
+	c := &Color{244,124,244,0}
+	t.Logf("%x", c.ToHex())
+}
+