func (s *Sprite) Draw(x, y, angle, scale float32, blend bool) {
gl.Enable(gl.TEXTURE_2D)
gl.Disable(gl.COLOR_MATERIAL)
if blend {
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.BLEND)
} else {
gl.Disable(gl.BLEND)
gl.BlendFunc(gl.ONE, gl.ZERO)
}
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(x, y, 0)
gl.Rotatef(angle*360/(2*math.Pi), 0, 0, 1)
gl.Scalef(scale, scale, 1)
s.tex.Bind(gl.TEXTURE_2D)
gl.Begin(gl.QUADS)
gl.Color3f(1, 1, 1)
gl.TexCoord2d(0, 0)
gl.Vertex3f(-0.5*s.width, -0.5*s.height, 0)
gl.TexCoord2d(1, 0)
gl.Vertex3f(0.5*s.width, -0.5*s.height, 0)
gl.TexCoord2d(1, 1)
gl.Vertex3f(0.5*s.width, 0.5*s.height, 0)
gl.TexCoord2d(0, 1)
gl.Vertex3f(-0.5*s.width, 0.5*s.height, 0)
gl.End()
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.BLEND)
}
// OpenWindow opens a new window with the given size.
func OpenWindow(w, h int) error {
glfw.OpenWindowHint(glfw.WindowNoResize, 1)
r, g, b := 0, 0, 0 // defaults
a := 8 // 8-bit alpha channel
d, s := 0, 0 // no depth or stencil buffers
m := glfw.Windowed
if err := glfw.OpenWindow(w, h, r, g, b, a, d, s, m); err != nil {
return err
}
if gl.Init() != 0 {
return errors.New("Failed to initialize OpenGL")
}
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.ClearColor(0.0, 0.0, 0.0, 0.0)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, float64(w), 0, float64(-h), -1, 1)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translated(0, float64(-h), 0)
return nil
}
func (this *Window) initGL() {
runtime.LockOSThread()
if gl.Init() != 0 {
panic("gl init error")
}
gl.ShadeModel(gl.SMOOTH)
gl.CullFace(gl.BACK)
gl.FrontFace(gl.CCW)
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.TEXTURE_2D)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
var magFilter, minFilter = gl.LINEAR, gl.LINEAR
if globals.CreateMipmaps {
minFilter = gl.LINEAR_MIPMAP_LINEAR
}
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, magFilter)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, minFilter)
gl.Enable(gl.NORMALIZE)
gl.ClearColor(.1, .1, .1, 1)
this.setGLViewport()
}
func main() {
glfw.Init()
defer glfw.Terminate()
glfw.OpenWindow(640, 480, 8, 8, 8, 8, 0, 0, glfw.Windowed)
defer glfw.CloseWindow()
glfw.SetWindowTitle("Tile test")
glfw.Enable(glfw.StickyKeys)
glfw.SetSwapInterval(1)
glfw.SetKeyCallback(inputCallback)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, GridWidth, GridHeight, 0, -1, 1)
gl.MatrixMode(gl.MODELVIEW)
gl.Disable(gl.DEPTH_TEST)
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.ClearColor(0.0, 0.0, 0.0, 1.0)
initResources()
initWorld()
for Running {
if (time.Since(DT).Nanoseconds() / 1000000) > 15 { //don't loop faster than every 15ms
DT = time.Now()
gl.Clear(gl.COLOR_BUFFER_BIT)
player.update()
renderScene()
glfw.SwapBuffers()
}
}
}
func drawDigits(x, y int, digits []int8) {
s := sdl.GetVideoSurface()
lft, rgt, btm, top := 0.0, float64(s.W), float64(s.H), 0.0
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.MatrixMode(gl.PROJECTION)
gl.PushMatrix()
gl.LoadIdentity()
gl.Ortho(lft, rgt, btm, top, 0.0, 1.0)
gl.MatrixMode(gl.MODELVIEW)
gl.PushMatrix()
gl.LoadIdentity()
w := digitImages[0].Rect.Dx()
for i := 0; i < len(digits); i++ {
img := digitImages[digits[i]]
drawImage(x-w*i-i, y, img)
}
gl.MatrixMode(gl.MODELVIEW)
gl.PopMatrix()
gl.MatrixMode(gl.PROJECTION)
gl.PopMatrix()
}
func (pen *Pen) lineTo(p Point) {
gl.Enable(gl.BLEND)
gl.Enable(gl.POINT_SMOOTH)
gl.Enable(gl.LINE_SMOOTH)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Color4f(0.0, 0.0, 0.0, 0.1)
gl.Begin(gl.LINES)
for _, s := range pen.points {
if s.x == 0 && s.y == 0 {
continue
}
if p.distanceTo(s) < 20.0 {
gl.Vertex2i(int(p.x), int(p.y))
gl.Vertex2i(int(s.x), int(s.y))
}
}
gl.End()
pen.n = (pen.n + 1) % len(pen.points)
pen.points[pen.n] = p
pen.moveTo(p)
}
func (pen *Pen) lineTo(x, y int) {
gl.Enable(gl.BLEND)
gl.Enable(gl.POINT_SMOOTH)
gl.Enable(gl.LINE_SMOOTH)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Color4f(0.0, 0.0, 0.0, 0.1)
gl.Begin(gl.LINES)
var p [2]int
for i := range pen.points {
p = pen.points[i]
if p[0] == 0 && p[1] == 0 {
continue
}
if distanceTo(x, y, p[0], p[1]) < 10.0 {
gl.Vertex2i(x, y)
gl.Vertex2i(p[0], p[1])
}
}
gl.End()
pen.n = (pen.n + 1) % len(pen.points)
pen.points[pen.n][0] = x
pen.points[pen.n][1] = y
pen.moveTo(x, y)
}
func (this *Window) initGL() {
gl.ShadeModel(gl.SMOOTH) //SMOOTH or FLAT
gl.CullFace(gl.BACK)
gl.FrontFace(gl.CCW)
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
/*gl.Enable(gl.FOG)
gl.Fogi(gl.FOG_MODE, gl.EXP)
gl.Fogfv(gl.FOG_COLOR, []float32{0.5,0.5,0.5,1.0})
gl.Fogf(gl.FOG_DENSITY, 0.0035)
gl.Hint(gl.FOG_HINT, gl.DONT_CARE)
gl.Fogf(gl.FOG_START, 1.0)
gl.Fogf(gl.FOG_END , 5000.0)//*/
gl.Enable(gl.TEXTURE_2D)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE) //before: decal, std: modulate
//gl.TexParameteri(gl.TEXTURE_2D, gl.GENERATE_MIPMAP, true) //mipmaps (dont use it!, its bad!)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR) //GL_LINEAR or GL_NEAREST, no mipmap here
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR) //*/
gl.ClearColor(.1, .1, .1, 1)
//gl.Enable(gl.PRIMITIVE_RESTART)
//gl.PrimitiveRestartIndex()
this.setGLViewport()
}
// general OpenGL initialization
func initGL() {
LoadGLTexture("data/star.bmp")
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE)
gl.ShadeModel(gl.SMOOTH)
gl.ClearColor(0.0, 0.0, 0.0, 0.5)
gl.ClearDepth(1.0)
gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
}
func initGL() {
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.ShadeModel(gl.SMOOTH)
gl.ClearColor(0, 0, 0, 0)
gl.ClearDepth(1)
gl.DepthFunc(gl.LEQUAL)
gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
}
func plot_list(list uint) {
gl.Enable(gl.BLEND)
gl.Enable(gl.POINT_SMOOTH)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.PointSize(1.0)
gl.LoadIdentity()
gl.Rotated(xrot, 1, 0, 0)
gl.Rotated(yrot, 0, 1, 0)
gl.Rotated(zrot, 0, 0, 1)
gl.Scaled(scale, scale, scale)
gl.Translated(xoff, yoff, zoff)
gl.CallList(list)
gl.Flush()
}
// Initialize OpenGL settings.
func glInit() {
pos := []float32{5.0, 5.0, 10.0, 0.0}
gl.Lightfv(gl.LIGHT0, gl.POSITION, pos)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.LIGHT0)
gl.Enable(gl.DEPTH_TEST)
gl.Enable(gl.NORMALIZE)
gl.Enable(gl.COLOR_MATERIAL)
gl.ColorMaterial(gl.FRONT_AND_BACK, gl.AMBIENT_AND_DIFFUSE)
gl.Enable(gl.LINE_SMOOTH)
gl.Enable(gl.POINT_SMOOTH)
}
// general OpenGL initialization
func initGL() {
gl.Enable(gl.TEXTURE_2D)
gl.ShadeModel(gl.SMOOTH)
gl.ClearColor(0.0, 0.0, 0.0, 0.5)
gl.ClearDepth(1.0)
gl.Enable(gl.DEPTH_TEST)
gl.DepthFunc(gl.LEQUAL)
gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
// Setup the light
gl.Lightfv(gl.LIGHT1, gl.AMBIENT, lightAmbient[:]) // ambient lighting
gl.Lightfv(gl.LIGHT1, gl.DIFFUSE, lightDiffuse[:]) // make it diffuse
gl.Lightfv(gl.LIGHT1, gl.POSITION, lightPosition[:]) // and place it
gl.Enable(gl.LIGHT1) // and finally turn it on.
gl.Color4f(1.0, 1.0, 1.0, 0.5) // Full Brightness, 50% Alpha ( NEW )
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE) // Blending Function For Translucency Based On Source Alpha Value ( NEW )
}
// general OpenGL initialization
func initGL() {
LoadGLTextures("data/mud.bmp")
gl.Enable(gl.TEXTURE_2D)
gl.ShadeModel(gl.SMOOTH)
gl.ClearColor(0.0, 0.0, 0.0, 0.0)
gl.ClearDepth(1.0)
gl.Enable(gl.DEPTH_TEST)
gl.DepthFunc(gl.LEQUAL)
gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
gl.Lightfv(gl.LIGHT1, gl.AMBIENT, lightAmbient[:])
gl.Lightfv(gl.LIGHT1, gl.DIFFUSE, lightDiffuse[:])
gl.Lightfv(gl.LIGHT1, gl.POSITION, lightPosition[:])
gl.Enable(gl.LIGHT1)
gl.Color4f(1.0, 1.0, 1.0, 0.5)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE)
}
func initGL() (err error) {
if err = loadTextures(); err != nil {
return
}
gl.ShadeModel(gl.SMOOTH)
gl.ClearColor(0, 0, 0, 0)
gl.ClearDepth(1)
gl.DepthFunc(gl.LEQUAL)
gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.NICEST)
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.DEPTH_TEST)
gl.Color4f(1, 1, 1, 0.5)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE)
gl.Lightfv(gl.LIGHT1, gl.AMBIENT, ambient)
gl.Lightfv(gl.LIGHT1, gl.AMBIENT, diffuse)
gl.Lightfv(gl.LIGHT1, gl.POSITION, lightpos)
gl.Enable(gl.LIGHT1)
return
}
func special(key, x, y int) {
switch key {
case glut.KEY_F1:
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.BLEND)
gl.Enable(gl.LINE_SMOOTH)
gl.Enable(gl.POINT_SMOOTH)
case glut.KEY_F2:
gl.Disable(gl.BLEND)
gl.Disable(gl.LINE_SMOOTH)
gl.Disable(gl.POINT_SMOOTH)
case glut.KEY_UP:
thrust = true
thrustTime = glut.Get(glut.ELAPSED_TIME)
case glut.KEY_LEFT:
left = true
leftTime = glut.Get(glut.ELAPSED_TIME)
case glut.KEY_RIGHT:
right = true
rightTime = glut.Get(glut.ELAPSED_TIME)
}
}
func initGame() {
viewport.Zoomstd()
viewport.Rotx(25)
viewport.Roty(70)
picker = NewPicker()
sdl.Init(sdl.INIT_VIDEO)
if ttf.Init() != 0 {
panic("Could not initalize fonts")
}
sdl.GL_SetAttribute(sdl.GL_DOUBLEBUFFER, 1)
screen := sdl.SetVideoMode(1024, 600, 32, sdl.OPENGL|sdl.RESIZABLE)
if screen == nil {
sdl.Quit()
panic("Couldn't set GL video mode: " + sdl.GetError() + "\n")
}
if gl.Init() != 0 {
panic("gl error")
}
sdl.WM_SetCaption("Amberfell", "amberfell")
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
// gl.ShadeModel(gl.FLAT)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.ShadeModel(gl.SMOOTH)
gl.Enable(gl.LIGHTING)
gl.Enable(gl.LIGHT0)
gl.Enable(gl.LIGHT1)
gl.Enable(gl.COLOR_MATERIAL)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.ClearDepth(1.0) // Depth Buffer Setup
gl.Enable(gl.DEPTH_TEST) // Enables Depth Testing
gl.Hint(gl.PERSPECTIVE_CORRECTION_HINT, gl.FASTEST)
gl.Enable(gl.TEXTURE_2D)
// LoadMapTextures()
LoadPlayerTextures()
LoadWolfTextures()
InitItems()
pauseFont = NewFont("res/Jura-DemiBold.ttf", 48, color.RGBA{255, 255, 255, 0})
consoleFont = NewFont("res/Jura-DemiBold.ttf", 16, color.RGBA{255, 255, 255, 0})
inventoryItemFont = NewFont("res/Jura-DemiBold.ttf", 14, color.RGBA{240, 240, 240, 0})
textures[TEXTURE_PICKER] = loadTexture("res/dial.png")
terrainTexture = loadTexture("res/tiles.png")
itemsTexture = loadTexture("res/items.png")
gVertexBuffer = NewVertexBuffer(10000, terrainTexture)
gGuiBuffer = NewVertexBuffer(1000, terrainTexture)
WolfModel = LoadModel("res/wolf.mm3d")
TheWorld = NewWorld()
ThePlayer = new(Player)
ThePlayer.Init(0, PLAYER_START_X, PLAYER_START_Z)
inventory = NewInventory()
viewport.Reshape(int(screen.W), int(screen.H))
PreloadChunks(400)
}
func (s *Sim) Draw() {
//start := time.Now()
// Init OpenGL
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.Enable(gl.BLEND)
gl.Enable(gl.POINT_SMOOTH)
gl.Enable(gl.LINE_SMOOTH)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Begin(gl.POINTS)
gl.PointSize(1)
for x := int(0); x < int(300); x += 1 {
for y := int(0); y < int(300); y += 1 {
pot := s.potential(s.units[0], float64(x), float64(y))
//r := math.Min(pot*2, 1)
//g := math.Min(pot*2, 2)-1
gl.Color4f(1-float32(pot), 1-float32(pot), 1-float32(pot), 1)
gl.Vertex2i(x, y)
}
}
gl.End()
// Draw Units
gl.Begin(gl.POINTS)
for i, unit := range s.units {
if i == 0 {
gl.Color4f(1, 0, 0, 1)
fmt.Println(unit.pos.X)
} else {
gl.Color4f(0, 1, 0, 1)
}
gl.Vertex2f(float32(unit.pos.X), float32(unit.pos.Y))
}
gl.End()
// Nav mesh
/*
for e := s.nav.nodes.Front(); e != nil; e = e.Next() {
nn := e.Value.(*NavNode)
gl.Color4f(0, 0, 1, 0.2)
if s.markedNodes[nn] {
gl.Color4f(1, 0, 0, 0.2)
}
gl.Begin(gl.POLYGON)
for _, pos := range nn.node.Points {
if pos == nil {
continue
}
gl.Vertex2f(float32(pos.X), float32(pos.Y))
}
gl.End()
gl.Color4f(0, 0, 1, 1)
gl.Begin(gl.LINE_LOOP)
for _, pos := range nn.node.Points {
if pos == nil {
continue
}
gl.Vertex2f(float32(pos.X), float32(pos.Y))
}
gl.End()
}
*/
// Draw Path
if s.units[0].path != nil {
gl.Begin(gl.LINE_STRIP)
gl.Color4f(1, 0, 0, 0.2)
for e := s.units[0].path.Front(); e != nil; e = e.Next() {
pos := e.Value.(*geo.Vec)
gl.Vertex2f(float32(pos.X), float32(pos.Y))
}
gl.End()
}
// Draw Links
/*gl.Color4f(1, 0, 0, 1)
gl.Begin(gl.LINES)
for i, link := range nn.links {
pt1 := nn.node.Points[i]
pt2 := nn.node.Points[(i+1)%nn.node.Len()]
lineCenter := &geo.Vec{(pt1.X+pt2.X)/2, (pt1.Y+pt2.Y)/2}
center := link.node.Center()
gl.Vertex2d(lineCenter.X, lineCenter.Y)
gl.Vertex2d(center.X, center.Y)
}
gl.End()*/
/*
fps := 1/(float64(time.Since(start))/float64(time.Second))
s.ui.fpsLabel2.SetLabel(fmt.Sprintf("%f", fps))
*/
}
func testPlot(dimension, order int) {
var (
iterations float64 = 0
start_t = time.Now()
split time.Time = start_t
total time.Duration
fps float64 = 1.0
new_attractor, redraw bool = true, true
npoints int = 1e5
coeffs []float64
//offsets, offset_coeffs []float64
start Matrix = MakeMatrix(1, int(math.Max(3, float64(dimension))))
points, points2/*, points3*/ Matrix
//attractor = gl.GenLists(1);
)
//offsets = make([]float64, ncoeffs(order))
//offset_coeffs = make([]float64, ncoeffs(order))
//coeffs = make([]float64, dimension + nCoeffs(order, dimension) * dimension)
//for i := range offsets { offsets[i] += rand.Float64() }
for handleEvents(&new_attractor, &redraw, &npoints) {
xoff += xvel / fps
yoff += yvel / fps
zoff += zvel / fps
xrot += xrotvel / fps
yrot += yrotvel / fps
zrot += zrotvel / fps
scale += svel / fps
if new_attractor {
coeffs, start = find_map_with_L(dimension, order, 0.1, 0.4)
redraw = true
new_attractor = false
}
if redraw {
points = MakePointMatrix(makeMapFn(dimension, order, coeffs), start, 500, npoints)
points2 = MakeMatrix(npoints, points.Height())
//points3 = MakeMatrix(npoints, points.Height())
redraw = false
fmt.Println("Redraw", npoints, "points")
}
//points2 = points
//RotationXW(xwrot).Apply(points, points2)
//RotationYW(xwrot + 0.25).Apply(points2, points3)
//RotationZW(xwrot + 0.50).Apply(points3, points2)
if dimension == 4 {
RotationZW(xwrot).Apply(points, points2)
xwrot += 0.05
ApplyW(points2, points2)
} else {
points2 = points
}
gl.Enable(gl.BLEND)
gl.Enable(gl.POINT_SMOOTH)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.PointSize(1.0)
gl.LoadIdentity()
gl.Rotated(xrot, 1, 0, 0)
gl.Rotated(yrot, 0, 1, 0)
gl.Rotated(zrot, 0, 0, 1)
gl.Scaled(scale, scale, scale)
gl.Translated(xoff, yoff, zoff)
gl.Color4d(1, 1, 1, 0.25)
gl.EnableClientState(gl.VERTEX_ARRAY)
if dimension > 3 {
gl.VertexPointer(3, (dimension-3)*32, points2.FlatCols())
} else {
gl.VertexPointer(3, 0, points2.FlatCols())
}
gl.DrawArrays(gl.POINTS, 0, points2.Width())
gl.DisableClientState(gl.VERTEX_ARRAY)
sdl.GL_SwapBuffers()
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
iterations++
if time.Since(split).Seconds() > 1.0 {
total = time.Since(start_t)
fps = iterations / total.Seconds()
fmt.Println(iterations, "iterations in", total.Seconds(), "gives",
fps, "fps")
split = time.Now()
}
}
}
func main() {
runtime.LockOSThread()
flag.Parse()
sdl.Init(sdl.INIT_VIDEO)
defer sdl.Quit()
sdl.GL_SetAttribute(sdl.GL_SWAP_CONTROL, 1)
if sdl.SetVideoMode(640, 480, 32, sdl.OPENGL) == nil {
panic("sdl error")
}
sdl.WM_SetCaption("Gotris", "Gotris")
sdl.EnableKeyRepeat(250, 45)
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Viewport(0, 0, 640, 480)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, 640, 480, 0, -1, 1)
gl.ClearColor(0, 0, 0, 0)
//-----------------------------------------------------------------------------
font, err := LoadFontFromFile("dejavu.font")
if err != nil {
panic(err)
}
rand.Seed(int64(sdl.GetTicks()))
gs := NewGameSession(*initLevel, font)
lastTime := sdl.GetTicks()
ticker := time.NewTicker(10 * time.Millisecond)
stop := make(chan byte, 1)
go func() {
for {
switch e := (<-sdl.Events).(type) {
case sdl.QuitEvent:
stop <- 0
case sdl.KeyboardEvent:
if e.Type == sdl.KEYDOWN {
running := gs.HandleKey(e.Keysym.Sym)
if !running {
stop <- 0
}
gs.update <- 0
}
}
}
}()
loop:
for {
select {
case <-ticker.C:
gs.update <- 0
case <-gs.update:
now := sdl.GetTicks()
delta := now - lastTime
lastTime = now
gs.Update(delta)
gl.Clear(gl.COLOR_BUFFER_BIT)
font.Draw(5, 5, fmt.Sprintf("Level: %d | Score: %d", gs.Level, gs.Score))
gs.Draw()
gl.Color3ub(255, 255, 255)
sdl.GL_SwapBuffers()
case <-stop:
break loop
}
}
}
