1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
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
}
}
}
}
|