func display() {
gl.Clear(gl.COLOR_BUFFER_BIT)
bitmap_output(40, 35, "This is written in a GLUT bitmap font.", glut.BITMAP_TIMES_ROMAN_24)
bitmap_output(30, 210, "More bitmap text is a fixed 9 by 15 font.", glut.BITMAP_9_BY_15)
bitmap_output(70, 240, " Helvetica is yet another bitmap font.", glut.BITMAP_HELVETICA_18)
gl.MatrixMode(gl.PROJECTION)
gl.PushMatrix()
gl.LoadIdentity()
glu.Perspective(40.0, 1.0, 0.1, 20.0)
gl.MatrixMode(gl.MODELVIEW)
gl.PushMatrix()
glu.LookAt(0.0, 0.0, 4.0, /* eye is at (0,0,30) */
0.0, 0.0, 0.0, /* center is at (0,0,0) */
0.0, 1.0, 0.0) /* up is in postivie Y direction */
gl.PushMatrix()
gl.Translatef(0, 0, -4)
gl.Rotatef(50, 0, 1, 0)
stroke_output(-2.5, 1.1, " This is written in a", glut.STROKE_ROMAN)
stroke_output(-2.5, 0, " GLUT stroke font.", glut.STROKE_ROMAN)
stroke_output(-2.5, -1.1, "using 3D perspective.", glut.STROKE_ROMAN)
gl.PopMatrix()
gl.MatrixMode(gl.MODELVIEW)
gl.PopMatrix()
gl.MatrixMode(gl.PROJECTION)
gl.PopMatrix()
gl.MatrixMode(gl.MODELVIEW)
gl.Flush()
}
func (w *Window) renderUpload() {
/*
for _, node := range w.nodes {
node.gfxupload()
}
*/
gl.Flush()
}
func runGameLoop(window *glfw.Window) {
for !window.ShouldClose() {
// update objects
updateObjects()
// hit detection
hitDetection()
// ---------------------------------------------------------------
// draw calls
gl.Clear(gl.COLOR_BUFFER_BIT)
drawCurrentScore()
drawHighScore()
if isGameWon() {
drawWinningScreen()
} else if isGameLost() {
drawGameOverScreen()
}
// draw everything 9 times in a 3x3 grid stitched together for seamless clipping
for x := -1.0; x < 2.0; x++ {
for y := -1.0; y < 2.0; y++ {
gl.MatrixMode(gl.MODELVIEW)
gl.PushMatrix()
gl.Translated(gameWidth*x, gameHeight*y, 0)
drawObjects()
gl.PopMatrix()
}
}
gl.Flush()
window.SwapBuffers()
glfw.PollEvents()
// switch resolution
if altEnter {
window.Destroy()
fullscreen = !fullscreen
var err error
window, err = initWindow()
if err != nil {
panic(err)
}
altEnter = false
gl.LineWidth(1)
if fullscreen {
gl.LineWidth(2)
}
}
}
}
func display() {
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Begin(gl.TRIANGLES)
gl.Color3f(0.0, 0.0, 1.0) /* blue */
gl.Vertex2i(0, 0)
gl.Color3f(0.0, 1.0, 0.0) /* green */
gl.Vertex2i(200, 200)
gl.Color3f(1.0, 0.0, 0.0) /* red */
gl.Vertex2i(20, 200)
gl.End()
gl.Flush() /* Single buffered, so needs a flush. */
}
func (rw *RenderWindow) draw() {
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Enable(gl.LINE_SMOOTH)
for chanIdx, channel := range rw.Channels {
color := channel.GetColor()
gl.Color4f(color[0], color[1], color[2], color[3])
gl.Begin(gl.LINES)
lastY := int64(0)
for i := 0; i < len(rw.renderBuffers[chanIdx]); i += 1 {
y := rw.Height - (rw.renderBuffers[chanIdx][i] * rw.Height / 1024)
gl.Vertex2i(i-1, int(lastY))
gl.Vertex2i(i, int(y))
lastY = y
}
gl.Flush()
gl.End()
}
glfw.SwapBuffers()
}
func display() {
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.Begin(gl.TRIANGLES)
l := t.units
for e := l.Front(); e != nil; e = e.Next() {
b := e.Value.(*Entity)
//r := b.rot_matrix
p := b.pos
gl.Color3f(0.0, 0.0, 1.0) /* blue */
gl.Vertex2f(p[0], p[1])
gl.Color3f(0.0, 1.0, 0.0) /* green */
gl.Vertex2f(20+p[0], 20+p[1])
gl.Color3f(1.0, 0.0, 0.0) /* red */
gl.Vertex2f(p[0], 20+p[1])
}
gl.End()
gl.Flush() /* Single buffered, so needs a flush. */
glut.SwapBuffers()
}
// Draws the contents of the framebuffer at the requested width and height.
func (fb *Framebuffer) Draw(w int, h int) {
gl.Viewport(0, 0, w, h)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, 1, 0, 1, 1, -1)
gl.Enable(gl.TEXTURE_2D)
fb.Texture.Bind(gl.TEXTURE_2D)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Begin(gl.QUADS)
gl.TexCoord2d(0, 0)
gl.Vertex3f(0.0, 0.0, 0)
gl.TexCoord2d(1, 0)
gl.Vertex3f(1.0, 0.0, 0)
gl.TexCoord2d(1, 1)
gl.Vertex3f(1.0, 1.0, 0)
gl.TexCoord2d(0, 1)
gl.Vertex3f(0.0, 1.0, 0)
gl.End()
gl.Flush()
}
func main() {
sys := Make()
sys.Startup()
defer sys.Shutdown()
// InitQueue()
sys.CreateWindow(1024, 768, "Gexic")
gl.ClearColor(1, 1, 1, 0.)
initGL()
prevSelectPos = []int{0, 0, 0}
// PurgeQueue()
// genHexMap()
hexMap2 = GenHexMap()
// for matches := checkHexMap(); len(matches) > 0; matches = checkHexMap() {
// removeHexAndGenNew(matches)
// }
glfw.SetMouseButtonCallback(MouseButtonCallback)
glfw.SetCharCallback(charCallback)
glfw.SetMousePosCallback(MousePosCallback)
currExX = -1
currExY = -1
for sys.CheckExitMainLoop() {
start := glfw.Time()
wait := float64(1) / float64(30)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.Disable(gl.DEPTH_TEST)
// renderHexMap()
wallpaper.Bind(gl.TEXTURE_2D)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.REPLACE)
gl.Begin(gl.QUADS)
gl.TexCoord2f(0, 0)
gl.Vertex2i(0, 0)
gl.TexCoord2f(0, 1)
gl.Vertex2i(0, 768)
gl.TexCoord2f(1, 1)
gl.Vertex2i(1024, 768)
gl.TexCoord2f(1, 0)
gl.Vertex2i(1024, 0)
gl.End()
hexMap2.Render()
hexRotate.AnimateAndExecute()
hexShrink.AnimateAndExecute()
hexFall.AnimateAndExecute()
if !mouse.locked {
x, y := mouse.GetXY()
hexMap2.CalcClosestCenter(x, y)
}
gl.Flush()
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.BLEND)
sys.Refresh()
diff := glfw.Time() - start
if diff < wait {
glfw.Sleep(wait - diff)
}
}
}
func renderHexMap() {
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.Disable(gl.DEPTH_TEST)
wallpaper.Bind(gl.TEXTURE_2D)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.REPLACE)
gl.Begin(gl.QUADS)
gl.TexCoord2f(0, 0)
gl.Vertex2i(0, 0)
gl.TexCoord2f(0, 1)
gl.Vertex2i(0, 768)
gl.TexCoord2f(1, 1)
gl.Vertex2i(1024, 768)
gl.TexCoord2f(1, 0)
gl.Vertex2i(1024, 0)
gl.End()
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.DECAL)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.PushMatrix()
gl.Translatef(80, 80, 0)
for x := 0; x < 10; x++ {
maxy := 8
topy := 19
if x%2 == 1 {
maxy = 9
topy = 0
}
starty := 0
for y := starty; y < maxy; y++ {
if currExX > -1 && currExY > -1 && starRotate {
if y == currExY && x == currExX || y == currExY+1 && x == currExX || y == currExY-1 && x == currExX || currExX%2 == 0 && ((currExX == x-1 || currExX == x+1) && currExY == y-1 || (currExX == x-1 || currExX == x+1) && currExY == y) || currExX%2 == 1 && ((currExX == x-1 || currExX == x+1) && currExY == y || (currExX == x-1 || currExX == x+1) && currExY == y+1) {
continue
}
} else if timesToRotate > 0 {
// if y == currExY && x == currExX || currExX%2 == 0 && (x == currExX+1 && y == currExY || x == currExX+1 && y == currExY+1) || currExX%2 == 1 && (x == currExX+1 && y == currExY || x == currExX+1 && y == currExY-1) {
// continue
// }
found := false
for _, v := range selectedHex {
if y == v[1] && x == v[0] {
found = true
break
}
}
if found {
continue
}
}
found := false
for _, v := range currentMatches {
if scale > 0 && v[0] == x && v[1] == y || scale <= 0 && v[0] == x && v[1] >= y {
found = true
break
}
}
for _, v := range starMatches {
if starAlpha > 0 && v[0] == x && v[1] == y || starAlpha <= 0 && v[0] == x && v[1] >= y {
found = true
break
}
}
if found || len(currStarCenter) > 0 && currStarCenter[0] == x && currStarCenter[1] == y {
continue
}
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
drawHex(x*33, topy+y*38, hexMap[x][y], 1)
}
}
gl.PopMatrix()
if len(currentMatches) > 0 || len(starMatches) > 0 {
mouseLock = true
if len(currentMatches) > 0 && scale > 0 {
scale -= 0.1
for _, v := range currentMatches {
gl.PushMatrix()
topy := 19
if v[0]%2 == 1 {
topy = 0
}
gl.Translatef(float32(v[0]*33+102), float32(v[1]*38+topy+94), 0)
gl.Scalef(scale, scale, 1)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
drawHex(-22, -14, hexMap[v[0]][v[1]], 1)
gl.PopMatrix()
}
} else if len(starMatches) > 0 && starAlpha > 0 {
starAlpha -= 0.05
// starAlpha = 0.7
starScale += 0.05
// starScale = 1.4
gl.PushMatrix()
topy := 19
pm := 0
if currStarCenter[0]%2 == 1 {
topy = 0
pm = -1
}
gl.Translatef(float32(currStarCenter[0]*33+102), float32(currStarCenter[1]*38+topy+94), 0)
drawHex(-22, -14, 6, 1)
gl.PopMatrix()
gl.PushMatrix()
gl.Translatef(float32(currStarCenter[0]*33+102), float32(currStarCenter[1]*38+topy+94), 0)
gl.Scalef(starScale, starScale, 1)
drawHex(-22, -14-HEX_HEIGHT, hexMap[currStarCenter[0]][currStarCenter[1]-1], starAlpha)
drawHex(-22, -20+HEX_HEIGHT, hexMap[currStarCenter[0]][currStarCenter[1]+1], starAlpha)
drawHex(-52, -36, hexMap[currStarCenter[0]-1][currStarCenter[1]+pm], starAlpha)
drawHex(-52, -40+HEX_HEIGHT, hexMap[currStarCenter[0]-1][currStarCenter[1]+pm+1], starAlpha)
drawHex(8, -36, hexMap[currStarCenter[0]+1][currStarCenter[1]+pm], starAlpha)
drawHex(8, -40+HEX_HEIGHT, hexMap[currStarCenter[0]+1][currStarCenter[1]+pm+1], starAlpha)
gl.PopMatrix()
} else {
if fallticks == 0 {
animateFall = make([]*freefall, 0)
for x := 0; x < 10; x++ {
topy := 19
if x%2 == 1 {
topy = 0
}
fromy := -1
for _, v := range currentMatches {
if v[0] != x {
continue
}
if v[1] > fromy {
fromy = v[1]
}
}
for _, v := range starMatches {
if v[0] != x {
continue
}
if v[1] > fromy {
fromy = v[1]
}
}
if fromy == -1 {
continue
}
for y := fromy; y >= 0; y-- {
found := false
for _, v := range currentMatches {
if v[0] == x && v[1] == y {
found = true
break
}
}
for _, v := range starMatches {
if v[0] == x && v[1] == y {
found = true
break
}
}
if found {
continue
}
animateFall = append(animateFall, &freefall{x, y, getFallTargetY(x, y), math.Pow(float64(y), 2)/16 + 0.5})
gl.PushMatrix()
gl.Translatef(float32(x*33+102), float32(y*38+topy+94), 0)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
drawHex(-22, -14, hexMap[x][y], 1)
gl.PopMatrix()
}
}
fallticks++
} else {
stillFalling := 0
for _, v := range animateFall {
topy := 19
if v.x%2 == 1 {
topy = 0
}
newy := v.accel * math.Pow(float64(fallticks), 2) / 2
gl.PushMatrix()
gl.Translatef(float32(v.x*33+102), float32(math.Min(float64(v.y*38+topy+94)+newy, float64(v.targetY*38+topy+94))), 0)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
drawHex(-22, -14, hexMap[v.x][v.y], 1)
gl.PopMatrix()
if float64(v.y*38+topy+94)+newy < float64(v.targetY*38+topy+94) {
stillFalling++
}
}
fallticks++
if stillFalling == 0 {
starScale = 1
starAlpha = 0
removeHexAndGenNew(currentMatches)
makeStarAndGenNew(starMatches)
currentMatches = checkHexMap()
starMatches = checkHexStar()
currStarCenter = []int{}
scale = 1
fallticks = 0
mouseLock = false
fmt.Println("Mouse unlocked 1")
animateFall = nil
}
}
}
}
if currExX > -1 && currExY > -1 {
gl.PushMatrix()
topy := 19
if currExX%2 == 1 {
topy = 0
}
if starRotate {
timesToRotate = 0
gl.Translatef(float32(currExX*33+102), float32(currExY*38+topy+94), 0)
gl.Scalef(1.3, 1.3, 1)
gl.Rotatef(rotate, 0, 0, 1)
drawHex(-22, -14, 6, 1)
drawHex(-22, -14-HEX_HEIGHT, hexMap[currExX][currExY-1], 1)
drawHex(-22, -20+HEX_HEIGHT, hexMap[currExX][currExY+1], 1)
pm := 0
if currExX%2 == 1 {
pm = -1
}
drawHex(-52, -36, hexMap[currExX-1][currExY+pm], 1)
drawHex(-52, -40+HEX_HEIGHT, hexMap[currExX-1][currExY+pm+1], 1)
drawHex(8, -36, hexMap[currExX+1][currExY+pm], 1)
drawHex(8, -40+HEX_HEIGHT, hexMap[currExX+1][currExY+pm+1], 1)
} else {
// gl.Translatef(float32(currExX*33+HEX_WIDTH+80), float32(currExxY*38+topy+20+80), 0)
gl.Translatef(float32(prevSelectPos[0]), float32(prevSelectPos[1]), 0)
gl.Scalef(1.3, 1.3, 1)
gl.Rotatef(rotate, 0, 0, 1)
for _, v := range selectedHex {
switch v[2] {
case 1:
drawHex(-32, -34, hexMap[v[0]][v[1]], 1)
case 2:
drawHex(0, -17, hexMap[v[0]][v[1]], 1)
case 3:
drawHex(-32, 0, hexMap[v[0]][v[1]], 1)
case 4:
drawHex(-44, -19, hexMap[v[0]][v[1]], 1)
case 5:
drawHex(-12, -36, hexMap[v[0]][v[1]], 1)
case 6:
drawHex(-12, -2, hexMap[v[0]][v[1]], 1)
}
}
// if currExX%2 == 0 {
// gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
// drawHex(-12, -36, hexMap[currExX+1][currExY], 1)
// } else {
// gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
// drawHex(-12, -36, hexMap[currExX+1][currExY-1], 1)
// }
// gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
// drawHex(-44, -19, hexMap[currExX][currExY], 1)
// if currExX%2 == 0 {
// gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
// drawHex(-12, -2, hexMap[currExX+1][currExY+1], 1)
// } else {
// gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
// drawHex(-12, -2, hexMap[currExX+1][currExY], 1)
// }
}
gl.PopMatrix()
if !starRotate && rotate < 120 {
rotate += 15
// rotate = 15
} else if starRotate && rotate < 60 {
rotate += 6
} else {
if starRotate {
if currExX%2 == 0 {
hexMap[currExX][currExY-1], hexMap[currExX+1][currExY], hexMap[currExX+1][currExY+1], hexMap[currExX][currExY+1], hexMap[currExX-1][currExY+1], hexMap[currExX-1][currExY] = hexMap[currExX-1][currExY], hexMap[currExX][currExY-1], hexMap[currExX+1][currExY], hexMap[currExX+1][currExY+1], hexMap[currExX][currExY+1], hexMap[currExX-1][currExY+1]
} else {
hexMap[currExX][currExY-1], hexMap[currExX+1][currExY-1], hexMap[currExX+1][currExY], hexMap[currExX][currExY+1], hexMap[currExX-1][currExY], hexMap[currExX-1][currExY-1] = hexMap[currExX-1][currExY-1], hexMap[currExX][currExY-1], hexMap[currExX+1][currExY-1], hexMap[currExX+1][currExY], hexMap[currExX][currExY+1], hexMap[currExX-1][currExY]
}
} else {
v2 := make([][]int, 3)
for _, v := range selectedHex {
idx := 0
switch v[2] {
case 1, 4:
idx = 0
case 2, 5:
idx = 1
case 3, 6:
idx = 2
}
v2[idx] = []int{v[0], v[1]}
fmt.Println(idx, v[0], v[1])
}
hexMap[v2[0][0]][v2[0][1]], hexMap[v2[1][0]][v2[1][1]], hexMap[v2[2][0]][v2[2][1]] = hexMap[v2[2][0]][v2[2][1]], hexMap[v2[0][0]][v2[0][1]], hexMap[v2[1][0]][v2[1][1]]
}
starMatches = checkHexStar()
if len(starMatches) > 6 {
fmt.Println(starMatches)
}
if len(starMatches) >= 6 {
timesToRotate = 0
rotate = 0
currExX = -1
currExY = -1
starScale = 1
starAlpha = 1
starRotate = false
currStarCenter = getStarCenter(starMatches)
hexMap[currStarCenter[0]][currStarCenter[1]] = 6
// makeStarAndGenNew(starMatches)
} else {
matches := checkHexMap()
if len(matches) > 0 {
currentMatches = matches
scale = 1
currExX = -1
currExY = -1
rotate = 0
timesToRotate = 0
starRotate = false
} else {
if timesToRotate == 0 {
currExX = -1
currExY = -1
rotate = 0
timesToRotate = 0
starRotate = false
mouseLock = false
fmt.Println("Mouse unlocked 3")
}
rotate = 0
timesToRotate--
}
}
}
}
if !mouseLock {
prevSelectPos = calcClosestCenter(posX, posY)
drawBorderAtXY(float32(prevSelectPos[0]), float32(prevSelectPos[1]), prevSelectPos[2])
}
gl.Flush()
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.BLEND)
}
func (d *DisplayEngine) drawFrame() {
toDraw := make([][]*resources.Bitmap, d.config.MapW*d.config.MapH)
drawPasses := 0
for x := 0; x < d.config.MapW; x++ {
for y := 0; y < d.config.MapH; y++ {
toDraw[x*d.config.MapW+y] = (*d.gameEngine).GetTile(x, y)
length := len(toDraw[x*d.config.MapW+y])
if length > drawPasses {
drawPasses = length
}
}
}
viewport := d.viewport
font := allegro.CreateBuiltinFont()
// Don't want anyone changing the viewport mid frame or any such highjinks
d.Display.SetTargetBackbuffer()
allegro.RunInThread(func() {
r, g, b, a := d.config.BGColor.GetRGBA()
gl.ClearColor(
gl.GLclampf(r)/255.0,
gl.GLclampf(g)/255.0,
gl.GLclampf(b)/255.0,
gl.GLclampf(a)/255.0)
gl.Clear(gl.COLOR_BUFFER_BIT)
viewport.SetupTransform()
for p := 0; p < drawPasses; p++ {
m := d.config.MapW
n := d.config.MapH
for s := 0; s < m+n; s++ {
for x := 0; x < s; x++ {
y := s - x - 1
if x >= m || y < 0 || y >= n {
continue
}
if len(toDraw[x*d.config.MapW+y]) < p {
continue
}
// Coordinates in terms of pixels
px := (y - x) * d.config.TileW / 2
py := (x + y) * d.config.TileH / 2
bmp := toDraw[x*d.config.MapW+y][p]
/* ox := bmp.OffX
oy := bmp.OffY*/
bw, bh := bmp.W, bmp.H
if viewport.OnScreen(px, py, bw, bh) {
gl.Begin(gl.QUADS)
bmp.Tex.Bind(gl.TEXTURE_2D)
gl.TexCoord2f(0, 0)
gl.Vertex3i(px, py, 0)
gl.TexCoord2f(0, 1)
gl.Vertex3i(px, py+bw, 0)
gl.TexCoord2f(1, 1)
gl.Vertex3i(px+bh, py+bw, 0)
gl.TexCoord2f(1, 0)
gl.Vertex3i(px+bh, py, 0)
gl.End()
}
}
}
}
gl.Flush()
})
var trans allegro.Transform
trans.Identity()
trans.Use()
font.Draw(allegro.CreateColor(0, 255, 0, 255), 0, 0, 0, fmt.Sprint(int(d.fps)))
allegro.Flip()
d.frameDrawing.Unlock()
}
func main() {
b, _ := ioutil.ReadFile("./roboto/roboto-light.ttf")
font, ferr := tt.Parse(b)
if ferr != nil {
fmt.Println("can't parse font %v , len %v", ferr.Error(), len(b))
}
fc := ft.NewContext()
fc.SetFont(font)
glfw.SetErrorCallback(errorCallback)
if !glfw.Init() {
panic("Can't init glfw!")
}
defer glfw.Terminate()
window, err := glfw.CreateWindow(800, 600, "Testing", nil, nil)
if err != nil {
panic(err)
}
window.MakeContextCurrent()
gl.Init()
program := gl.CreateProgram()
vertexShader := gl.CreateShader(gl.VERTEX_SHADER)
vertexShader.Source(`
attribute vec4 a_position;
attribute vec2 a_coord;
varying vec2 v_coord;
void main() {
gl_Position = a_position;
v_coord = a_coord;
}
`)
vertexShader.Compile()
fmt.Printf("vertex: %v\n", vertexShader.GetInfoLog())
fragmentShader := gl.CreateShader(gl.FRAGMENT_SHADER)
fragmentShader.Source(`
varying vec2 v_coord;
uniform sampler2D s_picture;
uniform vec4 color;
uniform bool has_picture;
void main() {
if(has_picture) {
gl_FragColor = texture2D(s_picture, v_coord);
} else {
gl_FragColor = color;
}
}
`)
fragmentShader.Compile()
fmt.Printf("fragment %v \n", fragmentShader.GetInfoLog())
program.AttachShader(vertexShader)
program.AttachShader(fragmentShader)
program.Link()
// ini
//gl.MatrixMode(gl.PROJECTION)
//gl.Ortho(0, 640, 0, 480, 0, 1)
gl.ClearColor(0.5, 0.5, 0.5, 0.0)
root := widget.Widget{
Name: "Red",
Rect: image.Rect(0, 0, 800, 600),
Background: color.RGBA{255, 128, 128, 126},
OnClick: widget.ClickInner,
OnDrag: widget.DragInner,
OnHover: widget.HoverInner,
OnResize: widget.ResizeItself,
}
blue := root.AddWidget(&widget.Widget{
Name: "Blue",
Rect: image.Rect(100, 100, 200, 200),
Image: LoadImage("./test.png"),
Background: color.RGBA{128, 128, 255, 126},
OnClick: func(w *widget.Widget, p image.Point) {
root.SetTop(w)
fmt.Println("Clicked blue box")
widget.ClickInner(w, p)
},
OnDrag: func(w *widget.Widget, p image.Point, d image.Point) bool {
widget.DragInner(w, p, d)
widget.DragItself(w, p, d)
return true
},
OnResize: widget.ResizeItself,
})
blue.AddWidget(&widget.Widget{
Name: "White",
Rect: image.Rect(90, 90, 100, 100),
Background: color.RGBA{250, 250, 250, 250},
OnDrag: func(w *widget.Widget, p image.Point, d image.Point) bool {
widget.DragItself(w, p, d)
blue.Resize(d)
return true
},
})
root.AddWidget(&widget.Widget{
Name: "Green",
Rect: image.Rect(100, 300, 200, 400),
Background: color.RGBA{128, 255, 128, 126},
OnClick: func(w *widget.Widget, p image.Point) {
root.SetTop(w)
w.Image = LoadImage("./test2.png")
},
OnDrag: widget.DragItself,
})
root.AddWidget(&widget.Widget{
Name: "Black",
Rect: image.Rect(100, 400, 150, 450),
Background: color.RGBA{0, 0, 0, 126},
OnHover: func(w *widget.Widget, p0 image.Point, p1 image.Point) {
if p1.In(w.Rect) {
w.Background = color.RGBA{255, 255, 255, 126}
} else {
w.Background = color.RGBA{0, 0, 0, 126}
}
},
})
white := root.AddWidget(&widget.Widget{
Name: "White",
Text: "Меня зовут Светлана, я из города Иваново. «Единая Россия» очень много сделала достижений: они подняли экономик… экономику, мы стали более лучшие… одеваться, и не было того что щас — это очень большие достижения! В сельском хозяйстве очень хорошо. (Гладин: Что именно в сельском хозяйстве они сделали?) Стало больше… земель за-а… много, ну… я не знаю даже как сказать… засеивать больше земель… а-а-а вот, овощи там, рожь — вот это всё. Что еще сказать… Так как у нас страна многонациональная, у нас в Москве очень много людей, которые очень помогают нам… с других городов… (вопрос Гладина: Вы считаете это достижение «Единой России»?) Да, это большое достижение! Очень хорошее даже! Видите ну… да… Видите ну у нас в Иванове очень хорошая стала медицина… а…что ещё… благоустройство в городах хорошее… с жильём… никаких проблем. Люди подмогают очень хорошо",
Rect: image.Rect(400, 200, 700, 500),
Foreground: color.RGBA{0, 0, 0, 0},
Background: color.RGBA{255, 255, 255, 126},
OnDrag: func(w *widget.Widget, p image.Point, d image.Point) bool {
root.SetTop(w)
widget.DragInner(w, p, d)
widget.DragItself(w, p, d)
return true
},
OnResize: widget.ResizeItself,
Padding: image.Rect(20, 20, 20, 20),
})
white.AddWidget(&widget.Widget{
Name: "White",
Rect: image.Rect(290, 290, 300, 300),
Background: color.RGBA{0, 0, 0, 250},
OnDrag: func(w *widget.Widget, p image.Point, d image.Point) bool {
widget.DragItself(w, p, d)
white.Resize(d)
return true
},
})
x0 := 0.0
y0 := 0.0
window.SetMouseButtonCallback(func(w *glfw.Window, but glfw.MouseButton, act glfw.Action, key glfw.ModifierKey) {
xpos, ypos := w.GetCursorPosition()
if act == glfw.Press {
root.Click(image.Point{X: int(xpos), Y: int(ypos)})
x0, y0 = xpos, ypos
}
})
window.SetCursorPositionCallback(func(w *glfw.Window, xpos float64, ypos float64) {
root.Hover(image.Point{X: int(x0), Y: int(y0)}, image.Point{X: int(xpos), Y: int(ypos)})
if w.GetMouseButton(glfw.MouseButtonLeft) == glfw.Press {
root.Drag(image.Point{X: int(x0), Y: int(y0)}, image.Point{X: int(xpos - x0), Y: int(ypos - y0)})
x0, y0 = xpos, ypos
}
x0, y0 = xpos, ypos
})
width0, height0 := window.GetSize()
window.SetSizeCallback(func(w *glfw.Window, width int, height int) {
gl.Viewport(0, 0, width, height)
root.Rect.Max = image.Point{width, height}
width0, height0 = width, height
})
/*switch(color_type){
case PNG_COLOR_TYPE_GRAY:
return GL_LUMINANCE;
case PNG_COLOR_TYPE_GRAY_ALPHA:
return GL_LUMINANCE_ALPHA;
case PNG_COLOR_TYPE_RGB:
return GL_RGB;
case PNG_COLOR_TYPE_RGB_ALPHA:
return GL_RGBA;
*/
/*
here init texture pool
texturePool := make([widget.Widget]texture)
*/
for !window.ShouldClose() {
//Do OpenGL stuff
program.Use()
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
root.DrawBy(image.Point{}, func(w *widget.Widget, corner image.Point) {
var texture gl.Texture
if w.Image != nil {
texture = gl.GenTexture()
texture.Bind(gl.TEXTURE_2D)
gl.ActiveTexture(gl.TEXTURE0)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA,
w.Image.Rect.Dx(), w.Image.Rect.Dy(),
0, gl.RGBA, gl.UNSIGNED_BYTE, w.Image.Pix)
}
leftX := 2.0*float32(corner.X+w.Rect.Min.X)/float32(root.Rect.Dx()) - 1.0
leftY := 1.0 - 2.0*float32(corner.Y+w.Rect.Min.Y)/float32(root.Rect.Dy())
rightX := 2.0*float32(corner.X+w.Rect.Min.X)/float32(root.Rect.Dx()) - 1.0
rightY := 1.0 - 2.0*float32(corner.Y+w.Rect.Max.Y)/float32(root.Rect.Dy())
bottomX := 2.0*float32(corner.X+w.Rect.Max.X)/float32(root.Rect.Dx()) - 1.0
bottomY := 1.0 - 2.0*float32(corner.Y+w.Rect.Min.Y)/float32(root.Rect.Dy())
topX := 2.0*float32(corner.X+w.Rect.Max.X)/float32(root.Rect.Dx()) - 1.0
topY := 1.0 - 2.0*float32(corner.Y+w.Rect.Max.Y)/float32(root.Rect.Dy())
vertices := []float32{
leftX, leftY,
rightX, rightY,
bottomX, bottomY,
topX, topY,
}
texturePoints := []float32{
0.0, 0.0, 0.0, 1.0,
1.0, 0.0, 1.0, 1.0,
}
s_picture := program.GetUniformLocation("s_picture")
s_picture.Uniform1i(0)
has_picture := program.GetUniformLocation("has_picture")
if w.Image != nil {
has_picture.Uniform1i(1)
} else {
has_picture.Uniform1i(0)
}
col := program.GetUniformLocation("color")
r, g, b, a := w.Background.RGBA()
col.Uniform4f(float32(r)/float32(0xFFFF), float32(g)/float32(0xFFFF), float32(b)/float32(0xFFFF), float32(a)/float32(0xFFFF))
gl.PixelStorei(gl.UNPACK_ALIGNMENT, gl.UNSIGNED_BYTE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
a_position := program.GetAttribLocation("a_position")
a_position.AttribPointer(2, gl.FLOAT, false, 0, vertices)
a_position.EnableArray()
a_coord := program.GetAttribLocation("a_coord")
a_coord.AttribPointer(2, gl.FLOAT, false, 0, texturePoints)
a_coord.EnableArray()
gl.DrawArrays(gl.TRIANGLE_STRIP, 0, 4)
gl.Flush()
texture.Delete()
if len(w.Text) > 0 {
rct := w.Rect
rct.Max = rct.Max.Sub(w.Rect.Min)
rct.Min = rct.Min.Sub(w.Rect.Min)
fg := image.NewRGBA(rct)
fgu := image.NewUniform(color.RGBA{0, 16, 32, 255})
draw.Draw(fg, fg.Bounds(), fgu, image.ZP, draw.Src)
bg := image.NewRGBA(rct)
bgu := image.NewUniform(color.RGBA{255, 255, 255, 255})
draw.Draw(bg, bg.Bounds(), bgu, image.ZP, draw.Src)
lineHeight := 20.0
fc.SetDPI(100.0)
fc.SetFont(font)
fc.SetFontSize(12.0)
fc.SetClip(bg.Bounds())
fc.SetDst(bg)
fc.SetSrc(fg)
p0 := ft.Pt(w.Padding.Min.X, w.Padding.Min.Y)
p := p0
for _, s := range w.Text {
p, _ = fc.DrawString(string(s), p)
if int(p.X>>8) > rct.Max.X-w.Padding.Max.X-w.Padding.Min.X {
p.X = p0.X
p.Y += raster.Fix32(lineHeight * 256)
}
}
var texture gl.Texture
if bg != nil {
texture = gl.GenTexture()
texture.Bind(gl.TEXTURE_2D)
gl.ActiveTexture(gl.TEXTURE0)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA,
bg.Rect.Dx(), bg.Rect.Dy(),
0, gl.RGBA, gl.UNSIGNED_BYTE, bg.Pix)
}
leftX := 2.0*float32(corner.X+w.Rect.Min.X)/float32(root.Rect.Dx()) - 1.0
leftY := 1.0 - 2.0*float32(corner.Y+w.Rect.Min.Y)/float32(root.Rect.Dy())
rightX := 2.0*float32(corner.X+w.Rect.Min.X)/float32(root.Rect.Dx()) - 1.0
rightY := 1.0 - 2.0*float32(corner.Y+w.Rect.Max.Y)/float32(root.Rect.Dy())
bottomX := 2.0*float32(corner.X+w.Rect.Max.X)/float32(root.Rect.Dx()) - 1.0
bottomY := 1.0 - 2.0*float32(corner.Y+w.Rect.Min.Y)/float32(root.Rect.Dy())
topX := 2.0*float32(corner.X+w.Rect.Max.X)/float32(root.Rect.Dx()) - 1.0
topY := 1.0 - 2.0*float32(corner.Y+w.Rect.Max.Y)/float32(root.Rect.Dy())
vertices := []float32{
leftX, leftY,
rightX, rightY,
bottomX, bottomY,
topX, topY,
}
texturePoints := []float32{
0.0, 0.0, 0.0, 1.0,
1.0, 0.0, 1.0, 1.0,
}
s_picture := program.GetUniformLocation("s_picture")
s_picture.Uniform1i(0)
has_picture := program.GetUniformLocation("has_picture")
if bg != nil {
has_picture.Uniform1i(1)
} else {
has_picture.Uniform1i(0)
}
col := program.GetUniformLocation("color")
r, g, b, a := w.Background.RGBA()
col.Uniform4f(float32(r)/float32(0xFFFF), float32(g)/float32(0xFFFF), float32(b)/float32(0xFFFF), float32(a)/float32(0xFFFF))
gl.PixelStorei(gl.UNPACK_ALIGNMENT, gl.UNSIGNED_BYTE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
a_position := program.GetAttribLocation("a_position")
a_position.AttribPointer(2, gl.FLOAT, false, 0, vertices)
a_position.EnableArray()
a_coord := program.GetAttribLocation("a_coord")
a_coord.AttribPointer(2, gl.FLOAT, false, 0, texturePoints)
a_coord.EnableArray()
gl.DrawArrays(gl.TRIANGLE_STRIP, 0, 4)
gl.Flush()
texture.Delete()
}
})
window.SwapBuffers()
glfw.PollEvents()
}
}
func main() {
var err error
if err = glfw.Init(); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
defer glfw.Terminate()
w, h := 1980, 1080
// w, h := 1280, 768
if err = glfw.OpenWindow(w, h, 8, 8, 8, 16, 0, 32, glfw.Fullscreen); err != nil {
fmt.Fprintf(os.Stderr, "[e] %v\n", err)
return
}
defer glfw.CloseWindow()
glfw.SetSwapInterval(1)
glfw.SetWindowTitle("Debris")
quadric = glu.NewQuadric()
gl.Enable(gl.CULL_FACE)
gl.Enable(gl.DEPTH_TEST)
gl.DepthFunc(gl.LEQUAL)
gl.Enable(gl.NORMALIZE)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.ShadeModel(gl.SMOOTH)
gl.Enable(gl.LIGHTING)
var (
ambient = []float32{0.1, 0.3, 0.6, 1}
diffuse = []float32{1, 1, 0.5, 1}
specular = []float32{0.4, 0.4, 0.4, 1}
light_position = []float32{1, 0, 0, 0}
// mat_specular []float32 = []float32{1, 1, 0.5, 1}
mat_specular = []float32{1, 1, 0.75, 1}
mat_shininess = float32(120)
// light_position []float32 = []float32{0.0, 0.0, 1.0, 0.0}
)
const (
fov = 1.1 // degrees
znear = 145
zfar = 155
camera_z_offset = -150
camera_x_rotation = 0 // degrees
// camera_x_rotation = 20 // degrees
starfield_fov = 45
faces = 1000
earth_radius = 1
)
gl.Lightfv(gl.LIGHT1, gl.AMBIENT, ambient)
gl.Lightfv(gl.LIGHT1, gl.DIFFUSE, diffuse)
gl.Lightfv(gl.LIGHT1, gl.SPECULAR, specular)
gl.Lightfv(gl.LIGHT1, gl.POSITION, light_position)
gl.Enable(gl.LIGHT1)
mat_emission := []float32{0, 0, 0.1, 1}
gl.Materialfv(gl.FRONT_AND_BACK, gl.EMISSION, mat_emission)
gl.Materialfv(gl.FRONT_AND_BACK, gl.SPECULAR, mat_specular)
gl.Materialf(gl.FRONT_AND_BACK, gl.SHININESS, mat_shininess)
gl.ClearColor(0.02, 0.02, 0.02, 1)
gl.ClearDepth(1)
gl.ClearStencil(0)
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
b := createBuffer()
planetoids := []*Planetoid{}
for i := 0; i < 1000; i++ {
p := &Planetoid{
apogee: 1.2 + rand.Float64()*0.7,
perigee: 1.5,
// inclination: 45,
inclination: rand.Float64()*20 - 10,
// inclination: 0,
phase0: rand.Float64() * 360,
rising_node: rand.Float64() * 10,
phase: 0,
// radius: rand.Float32()*0.05 + 0.01, //float32(r),
radius: rand.Float32()*0.0125 + 0.005, //float32(r),
// quadric: glu.NewQuadric(),
circle: b,
}
planetoids = append(planetoids, p)
}
// Initial projection matrix:
var aspect float64
glfw.SetWindowSizeCallback(func(w, h int) {
gl.Viewport(0, 0, w, h)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
aspect = float64(w) / float64(h)
glu.Perspective(fov, aspect, znear, zfar)
})
d := float64(0)
wireframe := false
atmosphere := false
polar := false
rotating := false
front := false
earth := true
cone := true
shadowing := true
tilt := false
running := true
glfw.SetKeyCallback(func(key, state int) {
if state != glfw.KeyPress {
// Don't act on key coming up
return
}
switch key {
case 'A':
atmosphere = !atmosphere
case 'C':
cone = !cone
case 'E':
earth = !earth
case 'R':
rotating = !rotating
case 'F':
front = !front
if front {
gl.FrontFace(gl.CW)
} else {
gl.FrontFace(gl.CCW)
}
case 'S':
shadowing = !shadowing
case 'T':
tilt = !tilt
case 'W':
wireframe = !wireframe
method := gl.GLenum(gl.FILL)
if wireframe {
method = gl.LINE
}
gl.PolygonMode(gl.FRONT_AND_BACK, method)
case glfw.KeyF2:
println("Screenshot captured")
// glh.CaptureToPng("screenshot.png")
w, h := glh.GetViewportWH()
im := image.NewRGBA(image.Rect(0, 0, w, h))
glh.ClearAlpha(1)
gl.Flush()
glh.CaptureRGBA(im)
go func() {
fd, err := os.Create("screenshot.png")
if err != nil {
panic("Unable to open file")
}
defer fd.Close()
png.Encode(fd, im)
}()
case 'Q', glfw.KeyEsc:
running = !running
case glfw.KeySpace:
polar = !polar
}
})
_ = rand.Float64
stars := glh.NewMeshBuffer(
glh.RenderArrays,
glh.NewPositionAttr(3, gl.DOUBLE, gl.STATIC_DRAW),
glh.NewColorAttr(3, gl.DOUBLE, gl.STATIC_DRAW))
const Nstars = 50000
points := make([]float64, 3*Nstars)
colors := make([]float64, 3*Nstars)
for i := 0; i < Nstars; i++ {
const R = 1
phi := rand.Float64() * 2 * math.Pi
z := R * (2*rand.Float64() - 1)
theta := math.Asin(z / R)
points[i*3+0] = R * math.Cos(theta) * math.Cos(phi)
points[i*3+1] = R * math.Cos(theta) * math.Sin(phi)
points[i*3+2] = z
const r = 0.8
v := rand.Float64()*r + (1 - r)
colors[i*3+0] = v
colors[i*3+1] = v
colors[i*3+2] = v
}
stars.Add(points, colors)
render_stars := func() {
glh.With(glh.Attrib{gl.DEPTH_BUFFER_BIT | gl.ENABLE_BIT}, func() {
gl.Disable(gl.LIGHTING)
gl.PointSize(1)
gl.Color4f(1, 1, 1, 1)
gl.Disable(gl.DEPTH_TEST)
gl.DepthMask(false)
stars.Render(gl.POINTS)
})
}
render_scene := func() {
// Update light position (sensitive to current modelview matrix)
gl.Lightfv(gl.LIGHT1, gl.POSITION, light_position)
gl.Lightfv(gl.LIGHT2, gl.POSITION, light_position)
if earth {
Sphere(earth_radius, faces)
}
unlit_points := glh.Compound(glh.Disable(gl.LIGHTING), glh.Primitive{gl.POINTS})
glh.With(unlit_points, func() {
gl.Vertex3d(1, 0, 0)
})
for _, p := range planetoids {
const dt = 0.1 // TODO: Frame update
p.Render(dt)
}
glh.With(glh.Disable(gl.LIGHTING), func() {
// Atmosphere
gl.Color4f(0.25, 0.25, 1, 0.1)
if atmosphere && earth {
Sphere(earth_radius*1.025, 100)
}
gl.PointSize(10)
glh.With(glh.Primitive{gl.POINTS}, func() {
gl.Color4f(1.75, 0.75, 0.75, 1)
gl.Vertex3d(-1.04, 0, 0)
})
})
}
render_shadow_volume := func() {
glh.With(glh.Attrib{
gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.ENABLE_BIT |
gl.POLYGON_BIT | gl.STENCIL_BUFFER_BIT,
}, func() {
gl.Disable(gl.LIGHTING)
if shadowing {
// gl.Disable(gl.DEPTH_TEST)
gl.DepthMask(false)
gl.DepthFunc(gl.LEQUAL)
gl.Enable(gl.STENCIL_TEST)
gl.ColorMask(false, false, false, false)
gl.StencilFunc(gl.ALWAYS, 1, 0xffffffff)
}
shadow_volume := func() {
const sv_length = 2
const sv_granularity = 100
const sv_radius = earth_radius * 1.001
// Shadow cone
glh.With(glh.Matrix{gl.MODELVIEW}, func() {
gl.Rotatef(90, 1, 0, 0)
gl.Rotatef(90, 0, -1, 0)
gl.Color4f(0.5, 0.5, 0.5, 1)
glu.Cylinder(quadric, sv_radius, sv_radius*1.05,
sv_length, sv_granularity, 1)
glu.Disk(quadric, 0, sv_radius, sv_granularity, 1)
glh.With(glh.Matrix{gl.MODELVIEW}, func() {
gl.Translated(0, 0, sv_length)
glu.Disk(quadric, 0, sv_radius*1.05, sv_granularity, 1)
})
})
for _, p := range planetoids {
p.RenderShadowVolume()
}
}
if cone {
gl.FrontFace(gl.CCW)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.INCR)
shadow_volume()
gl.FrontFace(gl.CW)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.DECR)
shadow_volume()
}
if shadowing {
gl.StencilFunc(gl.NOTEQUAL, 0, 0xffffffff)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
gl.ColorMask(true, true, true, true)
// gl.Disable(gl.STENCIL_TEST)
gl.Disable(gl.DEPTH_TEST)
gl.FrontFace(gl.CCW)
// gl.Color4f(1, 0, 0, 0.75)
gl.Color4f(0, 0, 0, 0.75)
// gl.Color4f(1, 1, 1, 0.75)
gl.LoadIdentity()
gl.Translated(0, 0, camera_z_offset)
// TODO: Figure out why this doesn't draw over the whole screen
glh.With(glh.Disable(gl.LIGHTING), func() {
glh.DrawQuadd(-10, -10, 20, 20)
})
// gl.FrontFace(gl.CW)
// gl.Enable(gl.LIGHTING)
// gl.Disable(gl.LIGHT1)
// render_scene()
// gl.Enable(gl.LIGHT1)
}
})
}
_ = render_stars
for running {
running = glfw.WindowParam(glfw.Opened) == 1
glfw.SwapBuffers()
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT | gl.STENCIL_BUFFER_BIT)
rotation := func() {
if tilt {
gl.Rotated(20, 1, 0, 0)
}
if polar {
gl.Rotated(90, 1, 0, 0)
}
gl.Rotated(d, 0, -1, 0)
}
// Star field
glh.With(glh.Matrix{gl.PROJECTION}, func() {
gl.LoadIdentity()
glu.Perspective(starfield_fov, aspect, 0, 1)
glh.With(glh.Matrix{gl.MODELVIEW}, func() {
gl.LoadIdentity()
rotation()
render_stars()
})
})
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translated(0, 0, camera_z_offset)
rotation()
if rotating {
d += 0.2
}
_ = render_scene
render_scene()
_ = render_shadow_volume
render_shadow_volume()
}
}
func EndPaint() {
gl.Flush()
glfw.SwapBuffers()
}
