func NewWindow(bounds splish.Rectangle, fullscreen bool) (*Window, error) {
size := bounds.Size()
flags := uint32(sdl.WINDOW_OPENGL | sdl.RENDERER_ACCELERATED)
if fullscreen {
flags |= sdl.WINDOW_FULLSCREEN
}
w, r, err := sdl.CreateWindowAndRenderer(int(size.X), int(size.Y), flags)
if err != nil {
return nil, err
}
return &Window{
window: w,
renderer: r,
w: size.X,
h: size.Y,
}, nil
}
func main() {
fmt.Print()
sdl.SetHint(sdl.HINT_RENDER_VSYNC, "1")
check(sdl.Init(sdl.INIT_EVERYTHING))
defer sdl.Quit()
window, r, err := sdl.CreateWindowAndRenderer(
640, 480,
sdl.WINDOW_RESIZABLE,
)
check(err)
renderer = r
defer renderer.Destroy()
defer window.Destroy()
window.SetTitle("Gophette's Adventures - Level Editor")
window.SetPosition(50, 50)
window.SetSize(1800, 900)
window.SetFullscreen(sdl.WINDOW_FULLSCREEN_DESKTOP)
renderer.SetDrawBlendMode(sdl.BLENDMODE_BLEND)
if len(LevelImages) == 0 {
for i, id := range []string{
"grass left",
"grass right",
"grass center 1",
"grass center 2",
"grass center 3",
"small tree",
} {
images = append(images, image{id, loadImage(id), 0, i * 50})
}
} else {
for i := range LevelImages {
id := LevelImages[i].ID
x, y := LevelImages[i].X, LevelImages[i].Y
img := loadImage(id)
images = append(images, image{id, img, x, y})
}
}
leftDown := false
middleDown := false
rightDown := false
selectedImage := -1
selectedObject := -1
var lastX, lastY int
moveImage := func(dx, dy int) {
if selectedImage != -1 {
images[selectedImage].x += dx
images[selectedImage].y += dy
}
}
stretchObject := func(dx, dy int) {
if selectedObject != -1 {
if sdl.GetKeyboardState()[sdl.SCANCODE_LCTRL] != 0 {
dx *= 20
dy *= 20
}
obj := &LevelObjects[selectedObject]
obj.W += dx
obj.H += dy
}
}
running := true
for running {
for e := sdl.PollEvent(); e != nil; e = sdl.PollEvent() {
switch event := e.(type) {
case *sdl.QuitEvent:
running = false
case *sdl.MouseButtonEvent:
if event.Button == sdl.BUTTON_LEFT {
leftDown = event.State == sdl.PRESSED
if !leftDown {
draggingImage = false
draggingObject = false
} else {
selectedObject = -1
selectedImage = -1
for i := range images {
if images[i].contains(
int(event.X)-cameraX,
int(event.Y)-cameraY,
) {
draggingImage = true
selectedImage = i
}
}
if selectedImage == -1 {
for i := range LevelObjects {
if contains(LevelObjects[i],
int(event.X)-cameraX,
int(event.Y)-cameraY,
) {
draggingObject = true
selectedObject = i
}
}
}
}
}
if event.Button == sdl.BUTTON_MIDDLE {
middleDown = event.State == sdl.PRESSED
}
if event.Button == sdl.BUTTON_RIGHT {
rightDown = event.State == sdl.PRESSED
LevelObjects = append(LevelObjects, LevelObject{
int(event.X) - cameraX,
int(event.Y) - cameraY,
0,
0,
true,
})
selectedObject = -1
}
case *sdl.MouseMotionEvent:
dx, dy := int(event.X)-lastX, int(event.Y)-lastY
if selectedImage != -1 && draggingImage {
img := &images[selectedImage]
img.x += dx
img.y += dy
}
if selectedObject != -1 && draggingObject {
obj := &LevelObjects[selectedObject]
obj.X += dx
obj.Y += dy
}
lastX, lastY = int(event.X), int(event.Y)
if middleDown {
cameraX += dx
cameraY += dy
}
if rightDown {
last := &LevelObjects[len(LevelObjects)-1]
last.W += dx
last.H += dy
}
case *sdl.KeyDownEvent:
switch event.Keysym.Sym {
case sdl.K_ESCAPE:
running = false
case sdl.K_LEFT:
cameraX += 100
case sdl.K_RIGHT:
cameraX -= 100
case sdl.K_UP:
cameraY += 100
case sdl.K_DOWN:
cameraY -= 100
case sdl.K_a:
moveImage(-1, 0)
case sdl.K_d:
moveImage(1, 0)
case sdl.K_w:
moveImage(0, -1)
case sdl.K_s:
moveImage(0, 1)
case sdl.K_j:
stretchObject(-1, 0)
case sdl.K_l:
stretchObject(1, 0)
case sdl.K_i:
stretchObject(0, -1)
case sdl.K_k:
stretchObject(0, 1)
case sdl.K_MINUS:
if selectedImage != -1 && selectedImage != 0 {
images = append(append(
[]image{images[selectedImage]},
images[0:selectedImage]...),
images[selectedImage+1:]...,
)
selectedImage = 0
}
case sdl.K_PLUS:
last := len(images) - 1
fmt.Println("last", last, len(images))
fmt.Println("selectedImage", selectedImage)
if selectedImage != -1 && selectedImage != last {
images = append(append(
images[0:selectedImage],
images[selectedImage+1:]...),
images[selectedImage],
)
selectedImage = last
fmt.Println("selectedImage after", selectedImage)
}
case sdl.K_SPACE:
if selectedObject != -1 {
obj := &LevelObjects[selectedObject]
obj.Solid = !obj.Solid
}
case sdl.K_c:
if selectedImage != -1 {
copy := images[selectedImage]
copy.x += 10
copy.y += 10
images = append(images, copy)
}
case sdl.K_DELETE:
if selectedImage != -1 {
images = append(images[:selectedImage], images[selectedImage+1:]...)
selectedImage = -1
} else if selectedObject != -1 {
LevelObjects = append(
LevelObjects[:selectedObject],
LevelObjects[selectedObject+1:]...,
)
selectedObject = -1
}
case sdl.K_F3:
saveLevel()
}
}
}
renderer.SetDrawColor(backColor[0], backColor[1], backColor[2], 255)
renderer.Clear()
for i, img := range images {
img.render(i == selectedImage)
}
for i, obj := range LevelObjects {
var g uint8 = 0
var a uint8 = 100
if i == selectedObject {
g = 255
}
renderer.SetDrawColor(0, g, 0, a)
if obj.Solid {
renderer.SetDrawColor(0, g, 255, a)
}
obj.X += cameraX
obj.Y += cameraY
r := sdl.Rect{int32(obj.X), int32(obj.Y), int32(obj.W), int32(obj.H)}
renderer.FillRect(&r)
}
renderer.Present()
}
}
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,
)
frameTime := time.Second / 65
lastUpdate := time.Now().Add(-frameTime)
music, err := mix.LoadMUS("./rsc/background_music.ogg")
if err != nil {
fmt.Println("error loading music:", err)
} else {
defer music.Free()
music.FadeIn(-1, 500)
}
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:
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:
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()
}
}