func (v *Voronoi) Render(w, h, d float64) {
gl.PushMatrix()
gl.Scaled(w, h, 1)
rng := rand.New(rand.NewSource(42))
rng.Seed(42)
// Draw fill colors
for _, wall := range v.cellWalls {
gl.Color3ub(
uint8(100+rng.Int31n(128)),
uint8(100+rng.Int31n(128)),
uint8(100+rng.Int31n(128)))
gl.Begin(gl.TRIANGLE_FAN)
for _, p := range wall {
if p != nil && boundedPoint(p) {
gl.Vertex2d(p.X, p.Y)
}
}
gl.End()
}
// Draw lines
gl.LineWidth(1.5)
gl.Color3ub(0, 128, 0)
gl.Begin(gl.LINES)
for _, edge := range v.edges {
if boundedEdge(edge) {
gl.Vertex2d(edge.Start.X, edge.Start.Y)
gl.Vertex2d(edge.End.X, edge.End.Y)
}
}
gl.End()
// Draw points.
gl.PointSize(2)
gl.Color3ub(255, 255, 255)
gl.Begin(gl.POINTS)
for _, point := range v.points {
gl.Vertex2d(point.X, point.Y)
}
gl.End()
gl.PopMatrix()
}
func (self *GameSession) drawPlaying() {
self.Field.Draw(self.cx, self.cy)
self.Figure.Draw(self.cx, self.cy)
gl.Color3ub(255, 255, 255)
self.font.Draw(self.cx+self.Field.PixelsWidth()+50, self.cy+5, "Next:")
self.NextFigure.Draw(self.cx+self.Field.PixelsWidth(), self.cy+50)
}
func drawBlock(x, y int, color TetrisBlockColor) {
glx := gl.GLint(x)
gly := gl.GLint(y)
gl.Color3ub(color.R/2, color.G/2, color.B/2)
gl.Begin(gl.QUADS)
gl.Vertex2i(int(glx), int(gly))
gl.Vertex2i(int(glx+blockSize), int(gly))
gl.Vertex2i(int(glx+blockSize), int(gly+blockSize))
gl.Vertex2i(int(glx), int(gly+blockSize))
gl.Color3ub(color.R, color.G, color.B)
gl.Vertex2i(int(glx+smallBlockOffset), int(gly+smallBlockOffset))
gl.Vertex2i(int(glx+blockSize-smallBlockOffset), int(gly+smallBlockOffset))
gl.Vertex2i(int(glx+blockSize-smallBlockOffset), int(gly+blockSize-smallBlockOffset))
gl.Vertex2i(int(glx+smallBlockOffset), int(gly+blockSize-smallBlockOffset))
gl.End()
}
// Draw unit vectors at the origin.
// The X vector is red, Y is green, and Z is blue.
func drawOrigin() {
gl.Color3ub(0xff, 0, 0)
gl.Begin(gl.LINES)
gl.Vertex3d(0, 0, 0)
gl.Vertex3d(1, 0, 0)
gl.End()
gl.Color3ub(0, 0xff, 0)
gl.Begin(gl.LINES)
gl.Vertex3d(0, 0, 0)
gl.Vertex3d(0, 1, 0)
gl.End()
gl.Color3ub(0, 0, 0xff)
gl.Begin(gl.LINES)
gl.Vertex3d(0, 0, 0)
gl.Vertex3d(0, 0, 1)
gl.End()
}
func drawSelection(p1, p2 Point) {
min, max := minMaxPoints(p1, p2)
gl.Color3ub(255, 0, 0)
gl.Begin(gl.LINES)
gl.Vertex2i(int(min.X), int(min.Y))
gl.Vertex2i(int(max.X), int(min.Y))
gl.Vertex2i(int(min.X), int(min.Y))
gl.Vertex2i(int(min.X), int(max.Y))
gl.Vertex2i(int(max.X), int(max.Y))
gl.Vertex2i(int(max.X), int(min.Y))
gl.Vertex2i(int(max.X), int(max.Y))
gl.Vertex2i(int(min.X), int(max.Y))
gl.End()
gl.Color3ub(255, 255, 255)
}
func (world *World) Render(w, h, d float64) {
gl.PushMatrix()
gl.Scaled(w, h, d)
// Draw the goal
gl.Begin(gl.POINTS)
gl.Color3ub(255, 0, 0)
gl.PointSize(6)
gl.Vertex2d(world.goal.X, world.goal.Y)
gl.End()
// Draw the obstacles
gl.Color4ub(0, 0, 255, 63)
world.obstacles.Render()
// Draw the percept
gl.Color4ub(0, 255, 0, 127)
gl.LineWidth(1.5)
gl.Begin(gl.LINES)
for _, pt := range world.percept {
gl.Vertex2d(world.robot.X, world.robot.Y)
gl.Vertex2d(world.robot.X+pt.X, world.robot.Y+pt.Y)
}
gl.End()
// Draw the map
gl.Color3ub(0, 0, 255)
gl.LineWidth(2)
// FIXME
// Draw the robot
gl.Color3ub(0, 255, 0)
gl.PointSize(4)
gl.Begin(gl.POINTS)
gl.Vertex2d(world.robot.X, world.robot.Y)
gl.End()
gl.PopMatrix()
}
func drawProgress(w, h, percents, pending int) {
switch pending {
case None:
gl.Color3ub(200, 0, 0)
drawQuad(0, h-BarSize, w, BarSize, 0, 0, 1, 1)
gl.Color3ub(255, 255, 255)
return
case Small:
gl.Color3ub(200, 200, 0)
case Big:
gl.Color3ub(200, 200, 0)
drawQuad(0, h-BarSize, w, BarSize, 0, 0, 1, 1)
gl.Color3ub(200, 0, 0)
}
step := float32(w) / 100
drawQuad(0, h-BarSize, int(float32(percents)*step), BarSize, 0, 0, 1, 1)
gl.Color3ub(255, 255, 255)
}
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
}
}
}
func (self *GameSession) drawGamePaused() {
self.drawPlaying()
gl.Color3ub(200, 200, 0)
self.font.Draw(self.pauseCx, 5, "Game paused, press P to resume")
}
func (self *GameSession) drawGameOver() {
self.drawPlaying()
gl.Color3ub(200, 0, 0)
self.font.Draw(self.gameOverCx, 5, "Game Over, restart? y/n")
}
func (s *Scatter) Render(w, h, d float64) {
gl.PushMatrix()
min, max := s.points.Bounds()
dim := max.Sub(min)
gl.Scaled(w/dim.X, h/dim.Y, d/dim.Z)
gl.Translated(-min.X, -min.Y, -min.Z)
// Draw axes: red X, green Y, blue Z.
gl.Begin(gl.LINES)
gl.LineWidth(1.5)
gl.Color3ub(255, 0, 0)
gl.Vertex3d(min.X, min.Y, min.Z)
gl.Vertex3d(max.X, min.Y, min.Z)
gl.Color3ub(0, 255, 0)
gl.Vertex3d(min.X, min.Y, min.Z)
gl.Vertex3d(min.X, max.Y, min.Z)
gl.Color3ub(0, 0, 255)
gl.Vertex3d(min.X, min.Y, min.Z)
gl.Vertex3d(min.X, min.Y, max.Z)
gl.End()
// Draw 2d plots on the XY, YZ, and XZ planes.
gl.PointSize(10.0)
gl.Begin(gl.POINTS)
// X plot
gl.Color4ub(255, 0, 0, 31)
for _, p := range s.points {
gl.Vertex3d(p.X, min.Y, min.Z)
}
// Y plot
gl.Color4ub(0, 255, 0, 31)
for _, p := range s.points {
gl.Vertex3d(min.X, p.Y, min.Z)
}
// Z plot
gl.Color4ub(0, 0, 255, 31)
for _, p := range s.points {
gl.Vertex3d(min.X, min.Y, p.Z)
}
// XY plot
gl.Color4ub(255, 255, 0, 63)
for _, p := range s.points {
gl.Vertex3d(p.X, p.Y, min.Z)
}
// YZ plot
gl.Color4ub(0, 255, 255, 63)
for _, p := range s.points {
gl.Vertex3d(min.X, p.Y, p.Z)
}
// XZ plot
gl.Color4ub(255, 0, 255, 63)
for _, p := range s.points {
gl.Vertex3d(p.X, min.Y, p.Z)
}
// XYZ plot
gl.Color4ub(255, 255, 255, 128)
for _, p := range s.points {
gl.Vertex3d(p.X, p.Y, p.Z)
}
gl.End()
gl.PopMatrix()
}
func (this *Color24) Gl() {
gl.Color3ub(this.R, this.G, this.B)
}