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 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()
}
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 initWindow() {
glut.IgnoreKeyRepeat(1)
glut.DisplayFunc(display)
glut.VisibilityFunc(visible)
glut.KeyboardFunc(key)
glut.KeyboardUpFunc(keyup)
glut.SpecialFunc(special)
glut.SpecialUpFunc(specialup)
glut.JoystickFunc(joystick, 100)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, 40, 0, 40, 0, 40)
gl.MatrixMode(gl.MODELVIEW)
gl.PointSize(3.0)
currentWindow = glut.GetWindow()
}
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 (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()
}
}
}