func TestLoadTyped_RW(t *testing.T) {
defer Quit()
// test expected success
rwops := sdl.RWFromMem(unsafe.Pointer(&testPNG[0]), len(testPNG))
defer rwops.RWclose()
surf, err := LoadTyped_RW(rwops, false, "PNG")
if surf != nil {
defer surf.Free()
}
if surf == nil || err != nil {
t.Errorf("LoadTyped_RW(%#v) == %v, %v; want surface without error",
"PNG", surf, err)
}
// test expected failure
rwops = sdl.RWFromMem(unsafe.Pointer(&testBadData[0]), len(testBadData))
defer rwops.RWclose()
surf, err = LoadTyped_RW(rwops, false, "PNG")
if surf != nil {
defer surf.Free()
}
if surf != nil || err == nil {
t.Errorf("LoadTyped_RW(%#v) == %v, %v; want error without surface",
"PNG", surf, err)
}
}
func TestIsFormat(t *testing.T) {
Init(INIT_JPG | INIT_PNG | INIT_TIF | INIT_WEBP)
defer Quit()
functions := map[string](func(*sdl.RWops) bool){
"BMP": IsBMP, "CUR": IsCUR, "GIF": IsGIF, "ICO": IsICO, "JPG": IsJPG,
"LBM": IsLBM, "PCX": IsPCX, "PNG": IsPNG, "PNM": IsPNM, "TIF": IsTIF,
"XCF": IsXCF, "XPM": IsXPM, "XV": IsXV, "WEBP": IsWEBP,
}
tests := []isTest{
{"BMP", IsBMP, testBMP}, {"GIF", IsGIF, testGIF},
{"ICO", IsICO, testICO}, {"JPG", IsJPG, testJPG},
{"PCX", IsPCX, testPCX}, {"PNG", IsPNG, testPNG},
{"PNM", IsPNM, testPNM}, {"TIF", IsTIF, testTIF},
{"WEBP", IsWEBP, testWEBP}, {"XCF", IsXCF, testXCF},
{"XPM", IsXPM, testXPM},
}
for _, test := range tests {
rwops := sdl.RWFromMem(unsafe.Pointer(&test.data[0]), len(test.data))
defer rwops.RWclose()
for fname, function := range functions {
got, want := function(rwops), fname == test.name
if got != want {
t.Errorf("%s: Is%s() == %v; want %v", test.name, fname, got,
want)
}
}
}
}
func (l *sdlAssetLoader) loadResources() error {
resourceData, err := payload.Read()
if err != nil {
return err
}
l.resources, err = blob.Read(bytes.NewBuffer(resourceData))
if err != nil {
return err
}
// load the texture atlas
atlas, found := l.resources.GetByID("atlas")
if !found {
panic("texture atlas not found in resources")
}
rwOps := sdl.RWFromMem(unsafe.Pointer(&atlas[0]), len(atlas))
surface, err := img.Load_RW(rwOps, false)
check(err)
defer surface.Free()
texture, err := l.renderer.CreateTextureFromSurface(surface)
check(err)
l.textureAtlas = texture
return err
}
func loadImageRotated(image_name string, angle float64) (*sdl.Surface, error) {
file, err := assets.Asset(image_name)
if err != nil {
return nil, err
}
i, _, err := image.Decode(bytes.NewReader(file))
if err != nil {
return nil, err
}
dst := image.NewRGBA(i.Bounds())
err = graphics.Rotate(dst, i, &graphics.RotateOptions{
Angle: angle * tau})
if err != nil {
return nil, err
}
var buf bytes.Buffer
err = png.Encode(&buf, dst)
if err != nil {
return nil, err
}
b := buf.Bytes()
return img.Load_RW(sdl.RWFromMem(unsafe.Pointer(&b[0]), len(b)), 0)
}
func loadSounds() (
sounds map[string]*mix.Chunk, err error) {
files, err := assets.AssetDir("final/sounds")
if err != nil {
return nil, err
}
sounds = make(map[string]*mix.Chunk)
for _, file := range files {
if !strings.HasSuffix(file, ".wav") {
continue
}
data, err := assets.Asset(filepath.Join("final/sounds", file))
if err != nil {
return nil, err
}
mem := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
sound, err := mix.LoadWAV_RW(mem, false)
if err != nil {
cleanupSounds(sounds)
return nil, err
}
sounds[file[:len(file)-len(".wav")]] = sound
}
return sounds, nil
}
func NewRenderer(title string, width, height, players int,
update_duration time.Duration) (rv *SDLRenderer, err error) {
return rv, exec(func() error {
window, err := sdl.CreateWindow(title, sdl.WINDOWPOS_UNDEFINED,
sdl.WINDOWPOS_UNDEFINED, width, height, sdl.WINDOW_SHOWN)
if err != nil {
rv = nil
return err
}
data, err := assets.Asset("final/Fixedsys500c.ttf")
if err != nil {
window.Destroy()
rv = nil
return err
}
mem := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
font, err := ttf.OpenFontRW(mem, 0, 128)
if err != nil {
window.Destroy()
rv = nil
return err
}
frames := int(frameRate * update_duration / time.Second)
images, player_rotations, err := loadImages(frames, players)
if err != nil {
window.Destroy()
font.Close()
rv = nil
return err
}
sounds, err := loadSounds()
if err != nil {
cleanupImages(images)
cleanupRotations(player_rotations)
window.Destroy()
font.Close()
rv = nil
return err
}
var frame_time time.Duration
if frames > 0 {
frame_time = update_duration / time.Duration(frames)
}
rv = &SDLRenderer{Title: title,
window: window,
font: font,
images: images,
sounds: sounds,
frame_time: frame_time,
frames: frames,
player_rotations: player_rotations,
closed: false}
return nil
})
}
func TestLoadFormat(t *testing.T) {
defer Quit()
tests := []loadTest{
{"BMP", LoadBMP_RW, testBMP}, {"GIF", LoadGIF_RW, testGIF},
{"ICO", LoadICO_RW, testICO}, {"JPG", LoadJPG_RW, testJPG},
{"PCX", LoadPCX_RW, testPCX}, {"PNG", LoadPNG_RW, testPNG},
{"PNM", LoadPNM_RW, testPNM}, {"TGA", LoadTGA_RW, testTGA},
{"TIF", LoadTIF_RW, testTIF}, {"XCF", LoadXCF_RW, testXCF},
{"XPM", LoadXPM_RW, testXPM},
// WEBP is undocumented and panics, so none of that.
}
for _, test := range tests {
// test expected success
rwops := sdl.RWFromMem(unsafe.Pointer(&test.data[0]), len(test.data))
defer rwops.RWclose()
surf, err := test.function(rwops)
if surf != nil {
defer surf.Free()
}
if surf == nil || err != nil {
t.Errorf("Load%s_RW() == %v, %v; want surface without error",
test.name, surf, err)
}
// test expected failure... unless we're loading XCF, since XCF will
// load anything.
if test.name == "XCF" {
continue
}
rwops = sdl.RWFromMem(unsafe.Pointer(&testBadData[0]), len(testBadData))
defer rwops.RWclose()
surf, err = test.function(rwops)
if surf != nil {
defer surf.Free()
}
if surf != nil || err == nil {
t.Errorf("Load%s_RW() == %v, %v; want error without surface",
test.name, surf, err)
}
}
}
func loadImage(id string) *sdl.Texture {
data := resource.Resources[id]
rwOps := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
surface, err := img.Load_RW(rwOps, false)
check(err)
defer surface.Free()
texture, err := renderer.CreateTextureFromSurface(surface)
check(err)
return texture
}
func LoadSurface(p []byte) (*Surface, error) {
if len(p) == 0 {
return nil, errors.New("drip: LoadSurface passed an empty slice")
}
ptr := unsafe.Pointer(&p[0])
rw := sdl.RWFromMem(ptr, len(p))
surf, err := img.Load_RW(rw, true)
if err != nil {
return nil, err
}
return newSurface(surf), nil
}
func overlay(surface *sdl.Surface, img_name string) error {
data, err := assets.Asset(img_name)
if err != nil {
return err
}
mem := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
ontop, err := img.Load_RW(mem, 0)
defer ontop.Free()
if err != nil {
return err
}
return ontop.BlitScaled(nil, surface, nil)
}
func BackgroundMusic(asset string) error {
return exec(func() error {
data, err := assets.Asset(asset)
if err != nil {
return err
}
mem := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
music, err := mix.LoadMUS_RW(mem, 0)
if err != nil {
return err
}
return music.Play(-1)
})
}
func (l *sdlAssetLoader) LoadSound(id string) Sound {
if sound, ok := l.sounds[id]; ok {
return sound
}
data := resource.Resources[id]
if data == nil {
panic("unknown sound resource: " + id)
}
rwOps := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
chunk, err := mix.LoadWAV_RW(rwOps, false)
check(err)
sound := &wavSound{chunk}
l.sounds[id] = sound
return sound
}
func (l *sdlAssetLoader) LoadImage(id string) Image {
if img, ok := l.images[id]; ok {
return img
}
data := resource.Resources[id]
if data == nil {
panic("unknown image resource: " + id)
}
rwOps := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
surface, err := img.Load_RW(rwOps, false)
check(err)
defer surface.Free()
texture, err := l.renderer.CreateTextureFromSurface(surface)
check(err)
image := &textureImage{l.renderer, l.camera, texture}
l.images[id] = image
return image
}
func loadImages(frames, players int) (
images map[grid.Cell]*sdl.Surface,
rotations map[grid.Owner][]*sdl.Surface, err error) {
images = make(map[grid.Cell]*sdl.Surface)
for _, simple := range []string{"battery", "floor", "wall"} {
for _, exploding := range []bool{false, true} {
data, err := assets.Asset(fmt.Sprintf("final/images/%s.png", simple))
if err != nil {
cleanupImages(images)
return nil, nil, err
}
mem := sdl.RWFromMem(unsafe.Pointer(&data[0]), len(data))
surface, err := img.Load_RW(mem, 0)
if err != nil {
cleanupImages(images)
return nil, nil, err
}
if exploding {
err = overlay(surface, "final/images/ex.png")
if err != nil {
surface.Free()
cleanupImages(images)
return nil, nil, err
}
}
for orientation := 0; orientation < 4; orientation++ {
for owner := 0; owner < players+1; owner++ {
images[grid.Cell{
Exploding: exploding,
Type: typeMapping(simple),
Orientation: grid.Orientation(orientation),
Owner: grid.Owner(owner)}] = surface
}
}
}
}
for _, rotateable := range []string{"l", "p"} {
for rotations := 0; rotations < 4; rotations++ {
for player := 1; player <= players; player++ {
for _, exploding := range []bool{false, true} {
surface, err := loadImageRotated(fmt.Sprintf("final/images/%s%d.png",
rotateable, (player-1)%2+1), float64(rotations)/4)
if err != nil {
cleanupImages(images)
return nil, nil, err
}
if exploding {
err = overlay(surface, "final/images/ex.png")
if err != nil {
surface.Free()
cleanupImages(images)
return nil, nil, err
}
}
images[grid.Cell{
Exploding: exploding,
Type: typeMapping(rotateable),
Owner: grid.Owner(player),
Orientation: grid.Orientation(rotations)}] = surface
}
}
}
}
rotations = make(map[grid.Owner][]*sdl.Surface)
for _, rotateable := range []string{"p"} {
for player := 1; player <= players; player++ {
for frame := 0; frame < 4*frames; frame++ {
surface, err := loadImageRotated(fmt.Sprintf("final/images/%s%d.png",
rotateable, (player-1)%2+1), float64(frame)/(4*float64(frames)))
if err != nil {
cleanupImages(images)
cleanupRotations(rotations)
return nil, nil, err
}
rotations[grid.Owner(player)] = append(
rotations[grid.Owner(player)], surface)
}
}
}
return images, rotations, nil
}
func main() {
sdl.SetHint(sdl.HINT_RENDER_VSYNC, "1")
check(sdl.Init(sdl.INIT_EVERYTHING))
defer sdl.Quit()
check(mix.Init(mix.INIT_OGG))
defer mix.Quit()
check(mix.OpenAudio(44100, mix.DEFAULT_FORMAT, 1, 512))
defer mix.CloseAudio()
if img.Init(img.INIT_PNG)&img.INIT_PNG == 0 {
panic("error init png")
}
defer img.Quit()
window, renderer, err := sdl.CreateWindowAndRenderer(
640, 480,
sdl.WINDOW_RESIZABLE,
)
check(err)
defer renderer.Destroy()
defer window.Destroy()
window.SetTitle("Gophette's Adventures")
window.SetSize(800, 600)
sdl.ShowCursor(0)
window.SetFullscreen(sdl.WINDOW_FULLSCREEN_DESKTOP)
fullscreen := true
camera := newWindowCamera(window.GetSize())
assetLoader := newSDLAssetLoader(camera, renderer)
defer assetLoader.close()
// charIndex selects which character is being controlled by the user, for
// the final game this must be 0 but for creating the "AI" for Barney, set
// this to 1 and delete the recorded inputs so they are not applied
// additionally to the user controls
var charIndex int
const recordingAI = false // NOTE switch for development mode
if !recordingAI {
charIndex = 0
} else {
charIndex = 1
recordedInputs = recordedInputs[:0]
recordingInput = true
}
game := NewGame(
assetLoader,
&sdlGraphics{renderer, camera},
camera,
charIndex,
)
musicData, found := assetLoader.resources.GetByID("music")
if found {
musicRWOps := sdl.RWFromMem(unsafe.Pointer(&musicData[0]), len(musicData))
music, err := mix.LoadMUS_RW(musicRWOps, 0)
if err != nil {
fmt.Println("error loading music:", err)
} else {
defer music.Free()
music.FadeIn(-1, 500)
}
}
frameTime := time.Second / 65
lastUpdate := time.Now().Add(-frameTime)
for game.Running() {
for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
switch event := e.(type) {
case *sdl.KeyDownEvent:
if event.Repeat == 0 {
switch event.Keysym.Sym {
case sdl.K_LEFT:
game.HandleInput(InputEvent{GoLeft, true, charIndex})
case sdl.K_RIGHT:
game.HandleInput(InputEvent{GoRight, true, charIndex})
case sdl.K_UP, sdl.K_SPACE, sdl.K_LCTRL:
game.HandleInput(InputEvent{Jump, true, charIndex})
case sdl.K_ESCAPE:
game.HandleInput(InputEvent{QuitGame, true, charIndex})
}
}
case *sdl.KeyUpEvent:
switch event.Keysym.Sym {
case sdl.K_LEFT:
game.HandleInput(InputEvent{GoLeft, false, charIndex})
case sdl.K_RIGHT:
game.HandleInput(InputEvent{GoRight, false, charIndex})
case sdl.K_UP, sdl.K_SPACE, sdl.K_LCTRL:
game.HandleInput(InputEvent{Jump, false, charIndex})
case sdl.K_F11:
if fullscreen {
window.SetFullscreen(0)
} else {
window.SetFullscreen(sdl.WINDOW_FULLSCREEN_DESKTOP)
}
fullscreen = !fullscreen
case sdl.K_ESCAPE:
game.HandleInput(InputEvent{QuitGame, false, charIndex})
}
case *sdl.WindowEvent:
if event.Event == sdl.WINDOWEVENT_SIZE_CHANGED {
width, height := int(event.Data1), int(event.Data2)
camera.setWindowSize(width, height)
}
case *sdl.QuitEvent:
game.HandleInput(InputEvent{QuitGame, true, charIndex})
}
}
now := time.Now()
dt := now.Sub(lastUpdate)
if dt > frameTime {
game.Update()
lastUpdate = now
}
check(renderer.SetDrawColor(0, 95, 83, 255))
check(renderer.Clear())
game.Render()
renderer.Present()
}
}
