func appMain(driver gxui.Driver) {
theme := dark.CreateTheme(driver)
window := theme.CreateWindow(ANIMATION_WIDTH, 2*ANIMATION_HEIGHT, "Pendulum")
window.SetBackgroundBrush(gxui.CreateBrush(gxui.Gray50))
image := theme.CreateImage()
ticker := time.NewTicker(time.Millisecond * 15)
pendulum := &mathematicalPendulum{}
pendulum2 := &numericalPendulum{PHI_ZERO, 0.0, 0.0, time.Time{}}
go func() {
for _ = range ticker.C {
canvas := driver.CreateCanvas(math.Size{ANIMATION_WIDTH, 2 * ANIMATION_HEIGHT})
canvas.Clear(gxui.White)
draw(pendulum, canvas, 0, 0)
draw(pendulum2, canvas, 0, ANIMATION_HEIGHT)
canvas.Complete()
driver.Call(func() {
image.SetCanvas(canvas)
})
}
}()
window.AddChild(image)
window.OnClose(ticker.Stop)
window.OnClose(driver.Terminate)
}
//画行走路线
func drawWalkPath(window gxui.Window, theme gxui.Theme, driver gxui.Driver, x1, y1, x2, y2 int64) {
ps, isWalk := nm.FindPath(nmastar, x1, y1, x2, y2)
if !isWalk {
return
}
canvas := driver.CreateCanvas(math.Size{W: int(nmj.Width), H: int(nmj.Heigth)})
var polys []gxui.PolygonVertex
for i := 0; i < len(ps); i++ {
polys = append(polys,
gxui.PolygonVertex{
Position: math.Point{
int(ps[i].X),
int(ps[i].Y),
}})
}
canvas.DrawLines(polys, gxui.CreatePen(2, gxui.Green))
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window.AddChild(image)
}
func route(driver gxui.Driver, src_id, dest_id int32, src, dest Point3) (canvas gxui.Canvas) {
defer func() {
canvas.Complete()
}()
canvas = driver.CreateCanvas(math.Size{W: 800, H: 600})
t0 := time.Now()
// Phase 1. Use Dijkstra to find shortest path on Triangles
path := dijkstra.Run(src_id)
// Phase 2. construct path indices
// Check if this path include src & dest
path_triangle := [][3]int32{triangles[dest_id]}
prev_id := dest_id
for {
cur_id, ok := path[prev_id]
if !ok {
return canvas
}
path_triangle = append([][3]int32{triangles[cur_id]}, path_triangle...)
if cur_id == src_id {
break
}
prev_id = cur_id
}
// Phase 3. use Navmesh to construct line
start, end := &Point3{X: src.X, Y: src.Y}, &Point3{X: dest.X, Y: dest.Y}
nm := NavMesh{}
trilist := TriangleList{vertices, path_triangle}
r, _ := nm.Route(trilist, start, end)
log.Println("navmesh time:", time.Now().Sub(t0))
var poly []gxui.PolygonVertex
poly = append(poly,
gxui.PolygonVertex{
Position: math.Point{
int(SCALE_FACTOR * start.X),
int(SCALE_FACTOR * start.Y),
}})
for k := range r.Line {
poly = append(poly,
gxui.PolygonVertex{
Position: math.Point{
int(SCALE_FACTOR * r.Line[k].X),
int(SCALE_FACTOR * r.Line[k].Y),
}})
}
poly = append(poly,
gxui.PolygonVertex{
Position: math.Point{
int(SCALE_FACTOR * end.X),
int(SCALE_FACTOR * end.Y),
}})
canvas.DrawLines(poly, gxui.CreatePen(2, gxui.Green))
return
}
func drawScene(driver gxui.Driver) {
window.RemoveAll()
canvas = driver.CreateCanvas(math.Size{W: 800, H: 600})
sn.Draw(canvas)
playGround.Draw(canvas)
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window.AddChild(image)
}
func appMain(driver gxui.Driver) {
theme := flags.CreateTheme(driver)
width := int(nmj.Width)
height := int(nmj.Heigth)
window := theme.CreateWindow(width, height, "navmesh")
canvas := driver.CreateCanvas(math.Size{W: width, H: height})
ps := nmj.Points
// mouse
isStart := true
x1, y1, x2, y2 := int64(0), int64(0), int64(0), int64(0)
window.OnMouseDown(func(me gxui.MouseEvent) {
if nm.IsWalkOfPoint(navmesh.Point{X: int64(me.Point.X), Y: int64(me.Point.Y)}) {
if isStart {
x1 = int64(me.Point.X)
y1 = int64(me.Point.Y)
} else {
x2 = int64(me.Point.X)
y2 = int64(me.Point.Y)
}
if !isStart {
drawWalkPath(window, theme, driver, x1, y1, x2, y2)
}
isStart = !isStart
}
})
// draw mesh
for i := 0; i < len(ps); i++ {
polys := make([]gxui.PolygonVertex, 0, len(ps[i]))
for j := 0; j < len(ps[i]); j++ {
polys = append(polys, gxui.PolygonVertex{
Position: math.Point{
int(ps[i][j].X),
int(ps[i][j].Y),
}})
}
// canvas.DrawPolygon(polys, gxui.CreatePen(2, gxui.Gray80), gxui.CreateBrush(gxui.Gray40))
canvas.DrawPolygon(polys, gxui.CreatePen(2, gxui.Red), gxui.CreateBrush(gxui.Yellow))
}
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window.AddChild(image)
window.OnClose(driver.Terminate)
}
func appMain(driver gxui.Driver) {
theme := flags.CreateTheme(driver)
canvas := driver.CreateCanvas(math.Size{W: 500, H: 300})
layout := theme.CreateLinearLayout()
layout.SetSizeMode(gxui.Fill)
layout.SetDirection(gxui.TopToBottom)
buttonsLayout := theme.CreateLinearLayout()
buttonsLayout.SetSizeMode(gxui.Fill)
buttonsLayout.SetDirection(gxui.LeftToRight)
button := func(name string, action func()) gxui.Button {
b := theme.CreateButton()
b.SetText(name)
b.OnClick(func(gxui.MouseEvent) { action() })
return b
}
okayButton := button("Okay", func() { log.Println("Okay") })
buttonsLayout.AddChild(okayButton)
cancelButton := button("Cancel", func() { log.Println("Cancel") })
buttonsLayout.AddChild(cancelButton)
drawPlot(canvas)
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window := theme.CreateWindow(800, 600, "bview")
window.SetBackgroundBrush(gxui.CreateBrush(gxui.Gray50))
layout.AddChild(buttonsLayout)
layout.AddChild(image)
window.AddChild(layout)
window.OnClose(driver.Terminate)
window.SetPadding(math.Spacing{L: 10, T: 10, R: 10, B: 10})
window.OnResize(func() { log.Println(layout.Children().String()) })
}
func appMain(driver gxui.Driver) {
theme := flags.CreateTheme(driver)
window := theme.CreateWindow(800, 600, "Polygon")
window.SetScale(flags.DefaultScaleFactor)
canvas := driver.CreateCanvas(math.Size{W: 1000, H: 1000})
drawStar(canvas, math.Point{X: 100, Y: 100}, 50, 0.2, 6)
drawStar(canvas, math.Point{X: 650, Y: 170}, 70, 0.5, 7)
drawStar(canvas, math.Point{X: 40, Y: 300}, 20, 0, 5)
drawStar(canvas, math.Point{X: 410, Y: 320}, 25, 0.9, 5)
drawStar(canvas, math.Point{X: 220, Y: 520}, 45, 0, 6)
drawMoon(canvas, math.Point{X: 400, Y: 300}, 200)
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window.AddChild(image)
window.OnClose(driver.Terminate)
}
func appMain(driver gxui.Driver) {
theme := dark.CreateTheme(driver)
canvas := driver.CreateCanvas(math.Size{W: 800, H: 600})
for i := 0; i < 800; i++ {
var fy = maths.Sin(float64(i) * (maths.Pi / 180))
y := (int(fy*100) + 240)
plot(canvas, i, y)
}
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window := theme.CreateWindow(800, 600, "")
window.AddChild(image)
window.OnClose(driver.Terminate)
}
func appMain(driver gxui.Driver) {
theme := flags.CreateTheme(driver)
window := theme.CreateWindow(800, 600, "navmesh")
canvas := driver.CreateCanvas(math.Size{W: 800, H: 600})
// mouse
isStart := true
var src_id, dest_id int32 // source & dest triangle id
var src, dest Point3
window.OnMouseDown(func(me gxui.MouseEvent) {
pt := Point3{X: float32(me.Point.X) / SCALE_FACTOR, Y: float32(me.Point.Y) / SCALE_FACTOR}
id := getTriangleId(pt)
if isStart {
src_id = id
src = pt
} else {
dest_id = id
dest = pt
}
if !isStart {
if src_id != -1 && dest_id != -1 {
canvas := route(driver, src_id, dest_id, src, dest)
image := theme.CreateImage()
image.SetCanvas(canvas)
window.AddChild(image)
}
}
isStart = !isStart
})
// draw mesh
for k := 0; k < len(triangles); k++ {
poly := []gxui.PolygonVertex{
gxui.PolygonVertex{
Position: math.Point{
int(SCALE_FACTOR * vertices[triangles[k][0]].X),
int(SCALE_FACTOR * vertices[triangles[k][0]].Y),
}},
gxui.PolygonVertex{
Position: math.Point{
int(SCALE_FACTOR * vertices[triangles[k][1]].X),
int(SCALE_FACTOR * vertices[triangles[k][1]].Y),
}},
gxui.PolygonVertex{
Position: math.Point{
int(SCALE_FACTOR * vertices[triangles[k][2]].X),
int(SCALE_FACTOR * vertices[triangles[k][2]].Y),
}},
}
canvas.DrawPolygon(poly, gxui.CreatePen(3, gxui.Gray80), gxui.CreateBrush(gxui.Gray40))
//canvas.DrawPolygon(poly, gxui.CreatePen(2, gxui.Red), gxui.CreateBrush(gxui.Yellow))
}
canvas.Complete()
image := theme.CreateImage()
image.SetCanvas(canvas)
window.AddChild(image)
window.OnClose(driver.Terminate)
}