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package unicorn
import "github.com/veandco/go-sdl2/sdl"
// BaseFakeUnicorn ...
// The base for FakeUnicorn & FakeUnicorn2
// Share the SDL code.
type BaseFakeUnicorn struct {
displayWidth int32
displayHeight int32
window *sdl.Window
renderer *sdl.Renderer
}
func NewBaseFakeUnicorn(width, height int32) (*BaseFakeUnicorn, error) {
if err := sdl.Init(sdl.INIT_EVERYTHING); err != nil {
return nil, err
}
unicorn := &BaseFakeUnicorn{
displayWidth: width,
displayHeight: height,
window: nil,
renderer: 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 *BaseFakeUnicorn) 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 *BaseFakeUnicorn) createRenderer() error {
renderer, err := sdl.CreateRenderer(f.window, -1, sdl.RENDERER_ACCELERATED)
f.renderer = renderer
return err
}
func (f *BaseFakeUnicorn) Close() error {
if f.window != nil {
f.window.Destroy()
}
if f.renderer != nil {
f.renderer.Destroy()
}
return nil
}
// MainLoop ...
// Handle UI events so OS doesn't think we're frozen
func (f *BaseFakeUnicorn) MainLoop() {
running := true
for running {
for event := sdl.PollEvent(); event != nil; event = sdl.PollEvent() {
switch event.(type) {
case *sdl.QuitEvent:
println("Quit")
running = false
break
}
}
}
}
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