_id
stringlengths
2
7
title
stringlengths
1
118
partition
stringclasses
3 values
text
stringlengths
52
85.5k
language
stringclasses
1 value
meta_information
dict
q30700
SetFillStyle
train
func (dc *Context) SetFillStyle(pattern Pattern) { // if pattern is SolidPattern, also change dc.color(for dc.Clear, dc.drawString) if fillStyle, ok := pattern.(*solidPattern); ok { dc.color = fillStyle.color } dc.fillPattern = pattern }
go
{ "resource": "" }
q30701
SetRGBA255
train
func (dc *Context) SetRGBA255(r, g, b, a int) { dc.color = color.NRGBA{uint8(r), uint8(g), uint8(b), uint8(a)} dc.setFillAndStrokeColor(dc.color) }
go
{ "resource": "" }
q30702
SetRGBA
train
func (dc *Context) SetRGBA(r, g, b, a float64) { dc.color = color.NRGBA{ uint8(r * 255), uint8(g * 255), uint8(b * 255), uint8(a * 255), } dc.setFillAndStrokeColor(dc.color) }
go
{ "resource": "" }
q30703
MoveTo
train
func (dc *Context) MoveTo(x, y float64) { if dc.hasCurrent { dc.fillPath.Add1(dc.start.Fixed()) } x, y = dc.TransformPoint(x, y) p := Point{x, y} dc.strokePath.Start(p.Fixed()) dc.fillPath.Start(p.Fixed()) dc.start = p dc.current = p dc.hasCurrent = true }
go
{ "resource": "" }
q30704
ClosePath
train
func (dc *Context) ClosePath() { if dc.hasCurrent { dc.strokePath.Add1(dc.start.Fixed()) dc.fillPath.Add1(dc.start.Fixed()) dc.current = dc.start } }
go
{ "resource": "" }
q30705
ClearPath
train
func (dc *Context) ClearPath() { dc.strokePath.Clear() dc.fillPath.Clear() dc.hasCurrent = false }
go
{ "resource": "" }
q30706
NewSubPath
train
func (dc *Context) NewSubPath() { if dc.hasCurrent { dc.fillPath.Add1(dc.start.Fixed()) } dc.hasCurrent = false }
go
{ "resource": "" }
q30707
StrokePreserve
train
func (dc *Context) StrokePreserve() { var painter raster.Painter if dc.mask == nil { if pattern, ok := dc.strokePattern.(*solidPattern); ok { // with a nil mask and a solid color pattern, we can be more efficient // TODO: refactor so we don't have to do this type assertion stuff? p := raster.NewRGBAPainter...
go
{ "resource": "" }
q30708
FillPreserve
train
func (dc *Context) FillPreserve() { var painter raster.Painter if dc.mask == nil { if pattern, ok := dc.fillPattern.(*solidPattern); ok { // with a nil mask and a solid color pattern, we can be more efficient // TODO: refactor so we don't have to do this type assertion stuff? p := raster.NewRGBAPainter(dc....
go
{ "resource": "" }
q30709
InvertMask
train
func (dc *Context) InvertMask() { if dc.mask == nil { dc.mask = image.NewAlpha(dc.im.Bounds()) } else { for i, a := range dc.mask.Pix { dc.mask.Pix[i] = 255 - a } } }
go
{ "resource": "" }
q30710
Clear
train
func (dc *Context) Clear() { src := image.NewUniform(dc.color) draw.Draw(dc.im, dc.im.Bounds(), src, image.ZP, draw.Src) }
go
{ "resource": "" }
q30711
SetPixel
train
func (dc *Context) SetPixel(x, y int) { dc.im.Set(x, y, dc.color) }
go
{ "resource": "" }
q30712
DrawPoint
train
func (dc *Context) DrawPoint(x, y, r float64) { dc.Push() tx, ty := dc.TransformPoint(x, y) dc.Identity() dc.DrawCircle(tx, ty, r) dc.Pop() }
go
{ "resource": "" }
q30713
DrawImage
train
func (dc *Context) DrawImage(im image.Image, x, y int) { dc.DrawImageAnchored(im, x, y, 0, 0) }
go
{ "resource": "" }
q30714
DrawString
train
func (dc *Context) DrawString(s string, x, y float64) { dc.DrawStringAnchored(s, x, y, 0, 0) }
go
{ "resource": "" }
q30715
DrawStringWrapped
train
func (dc *Context) DrawStringWrapped(s string, x, y, ax, ay, width, lineSpacing float64, align Align) { lines := dc.WordWrap(s, width) // sync h formula with MeasureMultilineString h := float64(len(lines)) * dc.fontHeight * lineSpacing h -= (lineSpacing - 1) * dc.fontHeight x -= ax * width y -= ay * h switch a...
go
{ "resource": "" }
q30716
MeasureString
train
func (dc *Context) MeasureString(s string) (w, h float64) { d := &font.Drawer{ Face: dc.fontFace, } a := d.MeasureString(s) return float64(a >> 6), dc.fontHeight }
go
{ "resource": "" }
q30717
WordWrap
train
func (dc *Context) WordWrap(s string, w float64) []string { return wordWrap(dc, s, w) }
go
{ "resource": "" }
q30718
Translate
train
func (dc *Context) Translate(x, y float64) { dc.matrix = dc.matrix.Translate(x, y) }
go
{ "resource": "" }
q30719
Scale
train
func (dc *Context) Scale(x, y float64) { dc.matrix = dc.matrix.Scale(x, y) }
go
{ "resource": "" }
q30720
ScaleAbout
train
func (dc *Context) ScaleAbout(sx, sy, x, y float64) { dc.Translate(x, y) dc.Scale(sx, sy) dc.Translate(-x, -y) }
go
{ "resource": "" }
q30721
Rotate
train
func (dc *Context) Rotate(angle float64) { dc.matrix = dc.matrix.Rotate(angle) }
go
{ "resource": "" }
q30722
RotateAbout
train
func (dc *Context) RotateAbout(angle, x, y float64) { dc.Translate(x, y) dc.Rotate(angle) dc.Translate(-x, -y) }
go
{ "resource": "" }
q30723
Shear
train
func (dc *Context) Shear(x, y float64) { dc.matrix = dc.matrix.Shear(x, y) }
go
{ "resource": "" }
q30724
ShearAbout
train
func (dc *Context) ShearAbout(sx, sy, x, y float64) { dc.Translate(x, y) dc.Shear(sx, sy) dc.Translate(-x, -y) }
go
{ "resource": "" }
q30725
TransformPoint
train
func (dc *Context) TransformPoint(x, y float64) (tx, ty float64) { return dc.matrix.TransformPoint(x, y) }
go
{ "resource": "" }
q30726
InvertY
train
func (dc *Context) InvertY() { dc.Translate(0, float64(dc.height)) dc.Scale(1, -1) }
go
{ "resource": "" }
q30727
Push
train
func (dc *Context) Push() { x := *dc dc.stack = append(dc.stack, &x) }
go
{ "resource": "" }
q30728
Pop
train
func (dc *Context) Pop() { before := *dc s := dc.stack x, s := s[len(s)-1], s[:len(s)-1] *dc = *x dc.mask = before.mask dc.strokePath = before.strokePath dc.fillPath = before.fillPath dc.start = before.start dc.current = before.current dc.hasCurrent = before.hasCurrent }
go
{ "resource": "" }
q30729
New
train
func New(pic pixel.Picture) *IMDraw { tri := &pixel.TrianglesData{} im := &IMDraw{ tri: tri, batch: pixel.NewBatch(tri, pic), } im.SetMatrix(pixel.IM) im.SetColorMask(pixel.Alpha(1)) im.Reset() return im }
go
{ "resource": "" }
q30730
Reset
train
func (imd *IMDraw) Reset() { imd.points = imd.points[:0] imd.Color = pixel.Alpha(1) imd.Picture = pixel.ZV imd.Intensity = 0 imd.Precision = 64 imd.EndShape = NoEndShape }
go
{ "resource": "" }
q30731
Draw
train
func (imd *IMDraw) Draw(t pixel.Target) { imd.batch.Draw(t) }
go
{ "resource": "" }
q30732
Push
train
func (imd *IMDraw) Push(pts ...pixel.Vec) { if _, ok := imd.Color.(pixel.RGBA); !ok { imd.Color = pixel.ToRGBA(imd.Color) } opts := point{ col: imd.Color.(pixel.RGBA), pic: imd.Picture, in: imd.Intensity, precision: imd.Precision, endshape: imd.EndShape, } for _, pt := range pts { ...
go
{ "resource": "" }
q30733
SetMatrix
train
func (imd *IMDraw) SetMatrix(m pixel.Matrix) { imd.matrix = m imd.batch.SetMatrix(imd.matrix) }
go
{ "resource": "" }
q30734
SetColorMask
train
func (imd *IMDraw) SetColorMask(color color.Color) { imd.mask = pixel.ToRGBA(color) imd.batch.SetColorMask(imd.mask) }
go
{ "resource": "" }
q30735
MakeTriangles
train
func (imd *IMDraw) MakeTriangles(t pixel.Triangles) pixel.TargetTriangles { return imd.batch.MakeTriangles(t) }
go
{ "resource": "" }
q30736
MakePicture
train
func (imd *IMDraw) MakePicture(p pixel.Picture) pixel.TargetPicture { return imd.batch.MakePicture(p) }
go
{ "resource": "" }
q30737
Rectangle
train
func (imd *IMDraw) Rectangle(thickness float64) { if thickness == 0 { imd.fillRectangle() } else { imd.outlineRectangle(thickness) } }
go
{ "resource": "" }
q30738
Polygon
train
func (imd *IMDraw) Polygon(thickness float64) { if thickness == 0 { imd.fillPolygon() } else { imd.polyline(thickness, true) } }
go
{ "resource": "" }
q30739
Circle
train
func (imd *IMDraw) Circle(radius, thickness float64) { if thickness == 0 { imd.fillEllipseArc(pixel.V(radius, radius), 0, 2*math.Pi) } else { imd.outlineEllipseArc(pixel.V(radius, radius), 0, 2*math.Pi, thickness, false) } }
go
{ "resource": "" }
q30740
Ellipse
train
func (imd *IMDraw) Ellipse(radius pixel.Vec, thickness float64) { if thickness == 0 { imd.fillEllipseArc(radius, 0, 2*math.Pi) } else { imd.outlineEllipseArc(radius, 0, 2*math.Pi, thickness, false) } }
go
{ "resource": "" }
q30741
Pressed
train
func (w *Window) Pressed(button Button) bool { return w.currInp.buttons[button] }
go
{ "resource": "" }
q30742
JustPressed
train
func (w *Window) JustPressed(button Button) bool { return w.currInp.buttons[button] && !w.prevInp.buttons[button] }
go
{ "resource": "" }
q30743
Repeated
train
func (w *Window) Repeated(button Button) bool { return w.currInp.repeat[button] }
go
{ "resource": "" }
q30744
SetMousePosition
train
func (w *Window) SetMousePosition(v pixel.Vec) { mainthread.Call(func() { if (v.X >= 0 && v.X <= w.bounds.W()) && (v.Y >= 0 && v.Y <= w.bounds.H()) { w.window.SetCursorPos( v.X+w.bounds.Min.X, (w.bounds.H()-v.Y)+w.bounds.Min.Y, ) w.prevInp.mouse = v w.currInp.mouse = v w.tempInp.mouse = v ...
go
{ "resource": "" }
q30745
String
train
func (b Button) String() string { name, ok := buttonNames[b] if !ok { return "Invalid" } return name }
go
{ "resource": "" }
q30746
UpdateInput
train
func (w *Window) UpdateInput() { mainthread.Call(func() { glfw.PollEvents() }) w.prevInp = w.currInp w.currInp = w.tempInp w.tempInp.repeat = [KeyLast + 1]bool{} w.tempInp.scroll = pixel.ZV w.tempInp.typed = "" w.updateJoystickInput() }
go
{ "resource": "" }
q30747
update
train
func (gs *glShader) update() { gs.uf = nil for _, u := range gs.uniforms { gs.uf = append(gs.uf, glhf.Attr{ Name: u.Name, Type: u.Type, }) } var shader *glhf.Shader mainthread.Call(func() { var err error shader, err = glhf.NewShader( gs.vf, gs.uf, gs.vs, gs.fs, ) if err != nil { pa...
go
{ "resource": "" }
q30748
getUniform
train
func (gs *glShader) getUniform(Name string) int { for i, u := range gs.uniforms { if u.Name == Name { return i } } return -1 }
go
{ "resource": "" }
q30749
baseShader
train
func baseShader(c *Canvas) { gs := &glShader{ vf: defaultCanvasVertexFormat, vs: baseCanvasVertexShader, fs: baseCanvasFragmentShader, } gs.setUniform("uTransform", &gs.uniformDefaults.transform) gs.setUniform("uColorMask", &gs.uniformDefaults.colormask) gs.setUniform("uBounds", &gs.uniformDefaults.bounds) ...
go
{ "resource": "" }
q30750
Value
train
func (gu *gsUniformAttr) Value() interface{} { if !gu.ispointer { return gu.value } switch gu.Type { case glhf.Vec2: return *gu.value.(*mgl32.Vec2) case glhf.Vec3: return *gu.value.(*mgl32.Vec3) case glhf.Vec4: return *gu.value.(*mgl32.Vec4) case glhf.Mat2: return *gu.value.(*mgl32.Mat2) case glhf.Mat...
go
{ "resource": "" }
q30751
Update
train
func (w *Window) Update() { mainthread.Call(func() { _, _, oldW, oldH := intBounds(w.bounds) newW, newH := w.window.GetSize() w.bounds = w.bounds.ResizedMin(w.bounds.Size().Add(pixel.V( float64(newW-oldW), float64(newH-oldH), ))) }) w.canvas.SetBounds(w.bounds) mainthread.Call(func() { w.begin() ...
go
{ "resource": "" }
q30752
SetClosed
train
func (w *Window) SetClosed(closed bool) { mainthread.Call(func() { w.window.SetShouldClose(closed) }) }
go
{ "resource": "" }
q30753
Closed
train
func (w *Window) Closed() bool { var closed bool mainthread.Call(func() { closed = w.window.ShouldClose() }) return closed }
go
{ "resource": "" }
q30754
SetTitle
train
func (w *Window) SetTitle(title string) { mainthread.Call(func() { w.window.SetTitle(title) }) }
go
{ "resource": "" }
q30755
SetBounds
train
func (w *Window) SetBounds(bounds pixel.Rect) { w.bounds = bounds mainthread.Call(func() { _, _, width, height := intBounds(bounds) w.window.SetSize(width, height) }) }
go
{ "resource": "" }
q30756
SetPos
train
func (w *Window) SetPos(pos pixel.Vec) { mainthread.Call(func() { left, top := int(pos.X), int(pos.Y) w.window.SetPos(left, top) }) }
go
{ "resource": "" }
q30757
GetPos
train
func (w *Window) GetPos() pixel.Vec { var v pixel.Vec mainthread.Call(func() { x, y := w.window.GetPos() v = pixel.V(float64(x), float64(y)) }) return v }
go
{ "resource": "" }
q30758
SetMonitor
train
func (w *Window) SetMonitor(monitor *Monitor) { if w.Monitor() != monitor { if monitor != nil { w.setFullscreen(monitor) } else { w.setWindowed() } } }
go
{ "resource": "" }
q30759
Monitor
train
func (w *Window) Monitor() *Monitor { var monitor *glfw.Monitor mainthread.Call(func() { monitor = w.window.GetMonitor() }) if monitor == nil { return nil } return &Monitor{ monitor: monitor, } }
go
{ "resource": "" }
q30760
Focused
train
func (w *Window) Focused() bool { var focused bool mainthread.Call(func() { focused = w.window.GetAttrib(glfw.Focused) == glfw.True }) return focused }
go
{ "resource": "" }
q30761
SetCursorVisible
train
func (w *Window) SetCursorVisible(visible bool) { w.cursorVisible = visible mainthread.Call(func() { if visible { w.window.SetInputMode(glfw.CursorMode, glfw.CursorNormal) } else { w.window.SetInputMode(glfw.CursorMode, glfw.CursorHidden) } }) }
go
{ "resource": "" }
q30762
MakeTriangles
train
func (w *Window) MakeTriangles(t pixel.Triangles) pixel.TargetTriangles { return w.canvas.MakeTriangles(t) }
go
{ "resource": "" }
q30763
MakePicture
train
func (w *Window) MakePicture(p pixel.Picture) pixel.TargetPicture { return w.canvas.MakePicture(p) }
go
{ "resource": "" }
q30764
SetColorMask
train
func (w *Window) SetColorMask(c color.Color) { w.canvas.SetColorMask(c) }
go
{ "resource": "" }
q30765
SetComposeMethod
train
func (w *Window) SetComposeMethod(cmp pixel.ComposeMethod) { w.canvas.SetComposeMethod(cmp) }
go
{ "resource": "" }
q30766
Clear
train
func (w *Window) Clear(c color.Color) { w.canvas.Clear(c) }
go
{ "resource": "" }
q30767
Color
train
func (w *Window) Color(at pixel.Vec) pixel.RGBA { return w.canvas.Color(at) }
go
{ "resource": "" }
q30768
Contains
train
func (a *Atlas) Contains(r rune) bool { _, ok := a.mapping[r] return ok }
go
{ "resource": "" }
q30769
Kern
train
func (a *Atlas) Kern(r0, r1 rune) float64 { return i2f(a.face.Kern(r0, r1)) }
go
{ "resource": "" }
q30770
DrawRune
train
func (a *Atlas) DrawRune(prevR, r rune, dot pixel.Vec) (rect, frame, bounds pixel.Rect, newDot pixel.Vec) { if !a.Contains(r) { r = unicode.ReplacementChar } if !a.Contains(unicode.ReplacementChar) { return pixel.Rect{}, pixel.Rect{}, pixel.Rect{}, dot } if !a.Contains(prevR) { prevR = unicode.ReplacementCha...
go
{ "resource": "" }
q30771
makeSquareMapping
train
func makeSquareMapping(face font.Face, runes []rune, padding fixed.Int26_6) (map[rune]fixedGlyph, fixed.Rectangle26_6) { width := sort.Search(int(fixed.I(1024*1024)), func(i int) bool { width := fixed.Int26_6(i) _, bounds := makeMapping(face, runes, padding, width) return bounds.Max.X-bounds.Min.X >= bounds.Max....
go
{ "resource": "" }
q30772
makeMapping
train
func makeMapping(face font.Face, runes []rune, padding, width fixed.Int26_6) (map[rune]fixedGlyph, fixed.Rectangle26_6) { mapping := make(map[rune]fixedGlyph) bounds := fixed.Rectangle26_6{} dot := fixed.P(0, 0) for _, r := range runes { b, advance, ok := face.GlyphBounds(r) if !ok { fmt.Println(r) cont...
go
{ "resource": "" }
q30773
NewCanvas
train
func NewCanvas(bounds pixel.Rect) *Canvas { c := &Canvas{ gf: NewGLFrame(bounds), mat: mgl32.Ident3(), col: mgl32.Vec4{1, 1, 1, 1}, } baseShader(c) c.SetBounds(bounds) c.shader.update() return c }
go
{ "resource": "" }
q30774
SetUniform
train
func (c *Canvas) SetUniform(name string, value interface{}) { c.shader.setUniform(name, value) }
go
{ "resource": "" }
q30775
SetFragmentShader
train
func (c *Canvas) SetFragmentShader(src string) { c.shader.fs = src c.shader.update() }
go
{ "resource": "" }
q30776
MakeTriangles
train
func (c *Canvas) MakeTriangles(t pixel.Triangles) pixel.TargetTriangles { return &canvasTriangles{ GLTriangles: NewGLTriangles(c.shader.s, t), dst: c, } }
go
{ "resource": "" }
q30777
MakePicture
train
func (c *Canvas) MakePicture(p pixel.Picture) pixel.TargetPicture { if cp, ok := p.(*canvasPicture); ok { return &canvasPicture{ GLPicture: cp.GLPicture, dst: c, } } if gp, ok := p.(GLPicture); ok { return &canvasPicture{ GLPicture: gp, dst: c, } } return &canvasPicture{ GLPicture...
go
{ "resource": "" }
q30778
SetColorMask
train
func (c *Canvas) SetColorMask(col color.Color) { rgba := pixel.Alpha(1) if col != nil { rgba = pixel.ToRGBA(col) } c.col = mgl32.Vec4{ float32(rgba.R), float32(rgba.G), float32(rgba.B), float32(rgba.A), } }
go
{ "resource": "" }
q30779
SetBounds
train
func (c *Canvas) SetBounds(bounds pixel.Rect) { c.gf.SetBounds(bounds) if c.sprite == nil { c.sprite = pixel.NewSprite(nil, pixel.Rect{}) } c.sprite.Set(c, c.Bounds()) //c.sprite.SetMatrix(pixel.IM.Moved(c.Bounds().Center())) }
go
{ "resource": "" }
q30780
Clear
train
func (c *Canvas) Clear(color color.Color) { c.gf.Dirty() rgba := pixel.ToRGBA(color) // color masking rgba = rgba.Mul(pixel.RGBA{ R: float64(c.col[0]), G: float64(c.col[1]), B: float64(c.col[2]), A: float64(c.col[3]), }) mainthread.CallNonBlock(func() { c.setGlhfBounds() c.gf.Frame().Begin() glhf...
go
{ "resource": "" }
q30781
Color
train
func (c *Canvas) Color(at pixel.Vec) pixel.RGBA { return c.gf.Color(at) }
go
{ "resource": "" }
q30782
Pixels
train
func (c *Canvas) Pixels() []uint8 { var pixels []uint8 mainthread.Call(func() { tex := c.Texture() tex.Begin() pixels = tex.Pixels(0, 0, tex.Width(), tex.Height()) tex.End() }) return pixels }
go
{ "resource": "" }
q30783
Draw
train
func (c *Canvas) Draw(t pixel.Target, matrix pixel.Matrix) { c.sprite.Draw(t, matrix) }
go
{ "resource": "" }
q30784
DrawColorMask
train
func (c *Canvas) DrawColorMask(t pixel.Target, matrix pixel.Matrix, mask color.Color) { c.sprite.DrawColorMask(t, matrix, mask) }
go
{ "resource": "" }
q30785
JoystickPresent
train
func (w *Window) JoystickPresent(js Joystick) bool { return w.currJoy.connected[js] }
go
{ "resource": "" }
q30786
JoystickName
train
func (w *Window) JoystickName(js Joystick) string { return w.currJoy.name[js] }
go
{ "resource": "" }
q30787
JoystickButtonCount
train
func (w *Window) JoystickButtonCount(js Joystick) int { return len(w.currJoy.buttons[js]) }
go
{ "resource": "" }
q30788
JoystickAxisCount
train
func (w *Window) JoystickAxisCount(js Joystick) int { return len(w.currJoy.axis[js]) }
go
{ "resource": "" }
q30789
JoystickPressed
train
func (w *Window) JoystickPressed(js Joystick, button int) bool { return w.currJoy.getButton(js, button) }
go
{ "resource": "" }
q30790
JoystickJustPressed
train
func (w *Window) JoystickJustPressed(js Joystick, button int) bool { return w.currJoy.getButton(js, button) && !w.prevJoy.getButton(js, button) }
go
{ "resource": "" }
q30791
JoystickAxis
train
func (w *Window) JoystickAxis(js Joystick, axis int) float64 { return w.currJoy.getAxis(js, axis) }
go
{ "resource": "" }
q30792
updateJoystickInput
train
func (w *Window) updateJoystickInput() { for js := Joystick1; js <= JoystickLast; js++ { // Determine and store if the joystick was connected joystickPresent := glfw.JoystickPresent(glfw.Joystick(js)) w.tempJoy.connected[js] = joystickPresent if joystickPresent { w.tempJoy.buttons[js] = glfw.GetJoystickBut...
go
{ "resource": "" }
q30793
getButton
train
func (js *joystickState) getButton(joystick Joystick, button int) bool { // Check that the joystick and button is valid, return false by default if js.buttons[joystick] == nil || button >= len(js.buttons[joystick]) || button < 0 { return false } return js.buttons[joystick][byte(button)] == 1 }
go
{ "resource": "" }
q30794
getAxis
train
func (js *joystickState) getAxis(joystick Joystick, axis int) float64 { // Check that the joystick and axis is valid, return 0 by default. if js.axis[joystick] == nil || axis >= len(js.axis[joystick]) || axis < 0 { return 0 } return float64(js.axis[joystick][axis]) }
go
{ "resource": "" }
q30795
NewSprite
train
func NewSprite(pic Picture, frame Rect) *Sprite { tri := MakeTrianglesData(6) s := &Sprite{ tri: tri, d: Drawer{Triangles: tri}, } s.matrix = IM s.mask = Alpha(1) s.Set(pic, frame) return s }
go
{ "resource": "" }
q30796
Set
train
func (s *Sprite) Set(pic Picture, frame Rect) { s.d.Picture = pic if frame != s.frame { s.frame = frame s.calcData() } }
go
{ "resource": "" }
q30797
Draw
train
func (s *Sprite) Draw(t Target, matrix Matrix) { s.DrawColorMask(t, matrix, nil) }
go
{ "resource": "" }
q30798
DrawColorMask
train
func (s *Sprite) DrawColorMask(t Target, matrix Matrix, mask color.Color) { dirty := false if matrix != s.matrix { s.matrix = matrix dirty = true } if mask == nil { mask = Alpha(1) } rgba := ToRGBA(mask) if rgba != s.mask { s.mask = rgba dirty = true } if dirty { s.calcData() } s.d.Draw(t) }
go
{ "resource": "" }
q30799
Compose
train
func (cm ComposeMethod) Compose(a, b RGBA) RGBA { var fa, fb float64 switch cm { case ComposeOver: fa, fb = 1, 1-a.A case ComposeIn: fa, fb = b.A, 0 case ComposeOut: fa, fb = 1-b.A, 0 case ComposeAtop: fa, fb = b.A, 1-a.A case ComposeRover: fa, fb = 1-b.A, 1 case ComposeRin: fa, fb = 0, a.A case C...
go
{ "resource": "" }