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authorMartin Ashby <martin@martin-laptop.lan>2018-05-18 23:50:21 +0100
committerMartin Ashby <martin@martin-laptop.lan>2018-05-18 23:50:21 +0100
commitfd941a660c7758949f292a89310a4a270dc5cc63 (patch)
treeedeb5144ea6e5766c01755efaa724d1f27155c33
parent20ee809e540556801fca87a573852d16c2ac7388 (diff)
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Added the fake one back in
-rw-r--r--FakeUnicorn.go94
1 files changed, 94 insertions, 0 deletions
diff --git a/FakeUnicorn.go b/FakeUnicorn.go
new file mode 100644
index 0000000..d282ba5
--- /dev/null
+++ b/FakeUnicorn.go
@@ -0,0 +1,94 @@
+package main
+
+import (
+ "github.com/veandco/go-sdl2/sdl"
+)
+
+type FakeUnicorn struct {
+ BaseUnicorn
+ displayWidth int32
+ displayHeight int32
+ window *sdl.Window
+ renderer *sdl.Renderer
+}
+
+// NewFake ...
+// Constructs a new fake unicorn out of paint and glue
+func NewFake(width, height uint8) (*FakeUnicorn, error) {
+ if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {
+ return nil, err
+ }
+
+ unicorn := &FakeUnicorn{
+ BaseUnicorn{
+ pixels: makePixels(width, height),
+ },
+ 300,
+ 300,
+ nil,
+ nil,
+ }
+ if err := unicorn.createWindow(); err != nil {
+ unicorn.Close()
+ return nil, err
+ }
+ if err := unicorn.createRenderer(); err != nil {
+ unicorn.Close()
+ return nil, err
+ }
+ return unicorn, nil
+}
+
+func (f *FakeUnicorn) createWindow() error {
+ window, err := sdl.CreateWindow("Fake Unicorn",
+ sdl.WINDOWPOS_UNDEFINED,
+ sdl.WINDOWPOS_UNDEFINED,
+ f.displayWidth,
+ f.displayHeight,
+ sdl.WINDOW_SHOWN)
+ f.window = window
+ return err
+}
+
+func (f *FakeUnicorn) createRenderer() error {
+ renderer, err := sdl.CreateRenderer(f.window, -1, sdl.RENDERER_ACCELERATED)
+ f.renderer = renderer
+ return err
+}
+
+func (f *FakeUnicorn) Close() error {
+ if f.window != nil {
+ f.window.Destroy()
+ }
+ if f.renderer != nil {
+ f.renderer.Destroy()
+ }
+ return nil
+}
+
+func (f *FakeUnicorn) Show() {
+ width, height := f.GetWidth(), f.GetHeight()
+ for x := uint8(0); x < width; x++ {
+ for y := uint8(0); y < height; y++ {
+ r, g, b := rgb(f.pixels[x][y])
+ if err := f.renderer.SetDrawColor(r, g, b, uint8(255)); err != nil {
+ panic(err)
+ }
+ cellWidth := f.displayWidth / int32(width)
+ cellHeight := f.displayHeight / int32(height)
+ if err := f.renderer.FillRect(&sdl.Rect{
+ X: cellWidth * int32(x),
+ Y: f.displayHeight - (cellHeight * int32(y)) - cellHeight, // SDL Y coordinate is from the top
+ W: cellWidth,
+ H: cellHeight,
+ }); err != nil {
+ panic(err)
+ }
+ }
+ }
+ f.renderer.Present()
+}
+
+func (f *FakeUnicorn) Off() {
+ f.Close()
+}