all: fix typos (#2864)

blend.go

@@ -49,7 +49,7 @@ type Blend struct {
 	// BlendFactorDestinationRGB is a factor for destination RGB values.
 	BlendFactorDestinationRGB BlendFactor
 
-	// BlendFactorDestinationAlpha is a factor for destination apha values.
+	// BlendFactorDestinationAlpha is a factor for destination alpha values.
 	BlendFactorDestinationAlpha BlendFactor
 
 	// BlendOperationRGB is an operation for source and destination RGB values.

cmd/ebitenmobile/_files/EbitenViewController.m

@@ -84,7 +84,7 @@
 - (void)initView {
   // initView must be called only when viewDidLoad_, and gameSet_ are true i.e. mobile.SetGame is called.
   // Or, EbitenmobileviewIsGL causes a dead lock (#2768).
-  // A game is requried to determine a graphics driver, and EbitenmobileviewIsGL cannot return a value without a game.
+  // A game is required to determine a graphics driver, and EbitenmobileviewIsGL cannot return a value without a game.
   NSAssert(viewDidLoad_ && gameSet_, @"viewDidLoad must be called and a game must be set at initView");
 
   if (!started_) {

colorm.go

@@ -72,7 +72,7 @@ func (c *ColorM) Apply(clr color.Color) color.Color {
 }
 
 // Concat multiplies a color matrix with the other color matrix.
-// This is same as muptiplying the matrix other and the matrix c in this order.
+// This is same as multiplying the matrix other and the matrix c in this order.
 //
 // Deprecated: as of v2.5. Use the colorm package instead.
 func (c *ColorM) Concat(other ColorM) {

examples/blocks/blocks/field.go

@@ -126,7 +126,7 @@ func (f *Field) flushable() bool {
 }
 
 // flushableLine returns a boolean value indicating whether
-// the line j is flushabled or not.
+// the line j is flushable or not.
 func (f *Field) flushableLine(j int) bool {
 	for i := 0; i < fieldBlockCountX; i++ {
 		if f.blocks[i][j] == BlockTypeNone {

examples/blocks/blocks/gamepad.go

@@ -120,7 +120,7 @@ func (c *gamepadConfig) initializeIfNeeded() {
 	// It is assumed that all axes are not pressed here.
 	//
 	// These default values are used to detect if an axis is actually pressed.
-	// For example, on PS4 controllers, L2/R2's axes valuse can be -1.0.
+	// For example, on PS4 controllers, L2/R2's axes value can be -1.0.
 	if c.defaultAxesValues == nil {
 		c.defaultAxesValues = map[int]float64{}
 		na := ebiten.GamepadAxisCount(c.gamepadID)
@@ -138,7 +138,7 @@ func (c *gamepadConfig) Reset() {
 }
 
 // Scan scans the current input state and assigns the given virtual gamepad button b
-// to the current (pysical) pressed buttons of the gamepad.
+// to the current (physical) pressed buttons of the gamepad.
 func (c *gamepadConfig) Scan(b virtualGamepadButton) bool {
 	if !c.gamepadIDInitialized {
 		panic("not reached")
@@ -249,7 +249,7 @@ func (c *gamepadConfig) IsButtonJustPressed(b virtualGamepadButton) bool {
 	return false
 }
 
-// Name returns the pysical button's name for the given virtual button.
+// Name returns the physical button's name for the given virtual button.
 func (c *gamepadConfig) ButtonName(b virtualGamepadButton) string {
 	if !c.gamepadIDInitialized {
 		panic("not reached")

examples/blocks/blocks/piece.go

@@ -82,7 +82,7 @@ func transpose(bs [][]bool) [][]bool {
 	for j, row := range bs {
 		blocks[j] = make([]bool, len(row))
 	}
-	// Tranpose the argument matrix.
+	// Transpose the argument matrix.
 	for i, col := range bs {
 		for j, v := range col {
 			blocks[j][i] = v

examples/piano/main.go

@@ -104,7 +104,7 @@ func init() {
 		for i := range keys {
 			freq := baseFreq * math.Exp2(float64(i-1)/12.0)
 
-			// Clculate the wave data for the freq.
+			// Calculate the wave data for the freq.
 			length := 4 * sampleRate * baseFreq / int(freq)
 			l := make([]int16, length)
 			r := make([]int16, length)

gameforui.go

@@ -97,7 +97,7 @@ func (g *gameForUI) NewOffscreenImage(width, height int) *ui.Image {
 	// and the shader program unexpectedly picks the pixel on the edges.
 	imageType := atlas.ImageTypeUnmanaged
 	if ui.Get().IsScreenClearedEveryFrame() {
-		// A violatile image is also always isolated.
+		// A volatile image is also always isolated.
 		imageType = atlas.ImageTypeVolatile
 	}
 	g.offscreen = newImage(image.Rect(0, 0, width, height), imageType)

image_test.go

@@ -4541,7 +4541,7 @@ func TestImageWritePixelAndDeallocate(t *testing.T) {
 	img.WritePixels(pix)
 	img.Deallocate()
 
-	// Confirm that any pixel information is cleared after Dealocate is called.
+	// Confirm that any pixel information is cleared after Deallocate is called.
 	if got, want := img.At(0, 0), (color.RGBA{}); got != want {
 		t.Errorf("got: %v, want: %v", got, want)
 	}

internal/affine/colorm.go

@@ -61,7 +61,7 @@ type ColorM interface {
 	Equals(other ColorM) bool
 
 	// Concat multiplies a color matrix with the other color matrix.
-	// This is same as muptiplying the matrix other and the matrix c in this order.
+	// This is same as multiplying the matrix other and the matrix c in this order.
 	Concat(other ColorM) ColorM
 
 	// Scale scales the matrix by (r, g, b, a).
@@ -618,7 +618,7 @@ func (c *colorMImplBodyTranslate) Concat(other ColorM) ColorM {
 
 	return &colorMImplBodyTranslate{
 		// TODO: This is a temporary hack to calculate multiply of transposed matrices.
-		// Fix mulSquare implmentation and swap the arguments.
+		// Fix mulSquare implementation and swap the arguments.
 		body: mulSquare(rhsb, &lhsb, ColorMDim-1),
 		translate: [...]float32{
 			lhsb[0]*rhst[0] + lhsb[4]*rhst[1] + lhsb[8]*rhst[2] + lhsb[12]*rhst[3] + lhst[0],
@@ -755,7 +755,7 @@ var (
 )
 
 // ChangeHSV changes HSV (Hue-Saturation-Value) elements.
-// hueTheta is a radian value to ratate hue.
+// hueTheta is a radian value to rotate hue.
 // saturationScale is a value to scale saturation.
 // valueScale is a value to scale value (a.k.a. brightness).
 //

internal/atlas/image_test.go

@@ -791,7 +791,7 @@ func TestIteratingImagesToPutOnSourceBackend(t *testing.T) {
 	dst := atlas.NewImage(w, h, atlas.ImageTypeRegular)
 	defer dst.Deallocate()
 
-	// Use srcs as detinations once.
+	// Use srcs as destinations once.
 	vs := quadVertices(w, h, 0, 0, 1)
 	is := graphics.QuadIndices()
 	dr := image.Rect(0, 0, w, h)

internal/clock/clock.go

@@ -32,7 +32,7 @@ var (
 	lastNow int64
 
 	// lastSystemTime is the last system time in the previous UpdateFrame.
-	// lastSystemTime indicates the logical time in the game, so this can be bigger than the curren time.
+	// lastSystemTime indicates the logical time in the game, so this can be bigger than the current time.
 	lastSystemTime int64
 
 	actualFPS   float64

internal/glfw/context_unix.go

@@ -17,7 +17,7 @@ import (
 
 // MakeContextCurrent makes the context of the window current.
 // Originally GLFW 3 passes a null pointer to detach the context.
-// But since we're using receievers, DetachCurrentContext should
+// But since we're using receivers, DetachCurrentContext should
 // be used instead.
 func (w *Window) MakeContextCurrent() error {
 	C.glfwMakeContextCurrent(w.data)

internal/glfw/error_unix.go

@@ -44,7 +44,7 @@ func init() {
 	C.glfwSetErrorCallbackCB()
 }
 
-// fetchErrorIgnoringPlatformError is fetchError igoring platformError.
+// fetchErrorIgnoringPlatformError is fetchError ignoring platformError.
 func fetchErrorIgnoringPlatformError() error {
 	select {
 	case err := <-lastError:

internal/glfw/win32_platform_windows.go

@@ -33,7 +33,7 @@ type platformWindowState struct {
 	lastCursorPosX int
 	lastCursorPosY int
 
-	// The last recevied high surrogate when decoding pairs of UTF-16 messages
+	// The last received high surrogate when decoding pairs of UTF-16 messages
 	highSurrogate uint16
 }
 

internal/glfw/win32_window_windows.go

@@ -1361,7 +1361,7 @@ func registerWindowClassWin32() error {
 	wc.hCursor = cursor
 	className, err := windows.UTF16FromString(_GLFW_WNDCLASSNAME)
 	if err != nil {
-		panic("glfw: _GLFW_WNDCLASSNAME must not inclucde a NUL character")
+		panic("glfw: _GLFW_WNDCLASSNAME must not include a NUL character")
 	}
 	wc.lpszClassName = &className[0]
 	defer runtime.KeepAlive(className)

internal/glfw/x11_init_linbsd.c

@@ -991,7 +991,7 @@ static Window createHelperWindow(void)
                          CWEventMask, &wa);
 }
 
-// Create the pipe for empty events without assumuing the OS has pipe2(2)
+// Create the pipe for empty events without assuming the OS has pipe2(2)
 //
 static GLFWbool createEmptyEventPipe(void)
 {

internal/graphics/bytes.go

@@ -22,7 +22,7 @@ import (
 // ManagedBytes is a managed byte slice.
 // The internal byte alice are managed in a pool.
 // ManagedBytes is useful when its lifetime is explicit, as the underlying byte slice can be reused for another ManagedBytes later.
-// This can redduce allocations and GCs.
+// This can reduce allocations and GCs.
 type ManagedBytes struct {
 	bytes []byte
 	pool  *bytesPool

internal/graphicscommand/command.go

@@ -205,8 +205,8 @@ func dstRegionFromVertices(vertices []float32) (minX, minY, maxX, maxY float32)
 func mightOverlapDstRegions(vertices1, vertices2 []float32) bool {
 	minX1, minY1, maxX1, maxY1 := dstRegionFromVertices(vertices1)
 	minX2, minY2, maxX2, maxY2 := dstRegionFromVertices(vertices2)
-	const mergin = 1
+	const margin = 1
-	return minX1 < maxX2+mergin && minX2 < maxX1+mergin && minY1 < maxY2+mergin && minY2 < maxY1+mergin
+	return minX1 < maxX2+margin && minX2 < maxX1+margin && minY1 < maxY2+margin && minY2 < maxY1+margin
 }
 
 // writePixelsCommand represents a command to replace pixels of an image.

internal/graphicscommand/commandqueue.go

@@ -184,7 +184,7 @@ func (q *commandQueue) Flush(graphicsDriver graphicsdriver.Graphics, endFrame bo
 	}
 
 	var sync bool
-	// Disable asynchrnous rendering when vsync is on, as this causes a rendering delay (#2822).
+	// Disable asynchronous rendering when vsync is on, as this causes a rendering delay (#2822).
 	if endFrame && atomic.LoadInt32(&vsyncEnabled) != 0 {
 		sync = true
 	}

internal/graphicsdriver/directx/graphics11_windows.go

@@ -168,7 +168,7 @@ func newGraphics11(useWARP bool, useDebugLayer bool) (gr11 *graphics11, ferr err
 		flags |= _D3D11_CREATE_DEVICE_DEBUG
 	}
 
-	// Avoid _D3D_FEATURE_LEVEL_11_1 as DirectX 11.0 doesn't recgonize this.
+	// Avoid _D3D_FEATURE_LEVEL_11_1 as DirectX 11.0 doesn't recognize this.
 	// Avoid _D3D_FEATURE_LEVEL_9_* for some shaders features (#1431).
 	featureLevels := []_D3D_FEATURE_LEVEL{
 		_D3D_FEATURE_LEVEL_11_0,

internal/graphicsdriver/directx/graphics12_windows.go

@@ -688,7 +688,7 @@ func (g *graphics12) End(present bool) error {
 
 	// Release vertices and indices buffers when too many ones were created.
 	// The threshold is an arbitrary number.
-	// This is needed espciallly for testings, where present is always false.
+	// This is needed especially for testings, where present is always false.
 	if len(g.vertices[g.frameIndex]) >= 16 {
 		if err := g.waitForCommandQueue(); err != nil {
 			return err

internal/shader/expr.go

@@ -625,7 +625,7 @@ func (cs *compileState) parseExpr(block *block, fname string, expr ast.Expr, mar
 			}, []shaderir.Type{t}, stmts, true
 		}
 
-		// Even if the function doesn't return anything, calling the function should be done eariler to keep
+		// Even if the function doesn't return anything, calling the function should be done earlier to keep
 		// the evaluation order.
 		stmts = append(stmts, shaderir.Stmt{
 			Type: shaderir.ExprStmt,

internal/ui/image.go

@@ -351,7 +351,7 @@ func (i *bigOffscreenImage) drawTriangles(srcs [graphics.ShaderImageCount]*Image
 		if len(i.tmpVerticesForCopying) < 4*graphics.VertexFloatCount {
 			i.tmpVerticesForCopying = make([]float32, 4*graphics.VertexFloatCount)
 		}
-		// i.tmpVerticesForCopying can be resused as this is sent to DrawTriangles immediately.
+		// i.tmpVerticesForCopying can be reused as this is sent to DrawTriangles immediately.
 		graphics.QuadVertices(
 			i.tmpVerticesForCopying,
 			float32(i.region.Min.X), float32(i.region.Min.Y), float32(i.region.Max.X), float32(i.region.Max.Y),

internal/ui/init_nintendosdk.cpp

@@ -14,7 +14,7 @@
 
 //go:build nintendosdk
 
-// The actual implementaiton will be provided by -overlay.
+// The actual implementation will be provided by -overlay.
 
 #include "init_nintendosdk.h"
 

internal/ui/run.go

@@ -39,7 +39,7 @@ func (u *UserInterface) runMultiThread(game Game, options *RunOptions) error {
 	graphicscommand.SetRenderThread(u.renderThread)
 
 	// Set the running state true after the main thread is set, and before initOnMainThread is called (#2742).
-	// TODO: As the existance of the main thread is the same as the value of `running`, this is redundant.
+	// TODO: As the existence of the main thread is the same as the value of `running`, this is redundant.
 	// Make `mainThread` atomic and remove `running` if possible.
 	u.setRunning(true)
 	defer u.setRunning(false)

internal/ui/ui_js.go

@@ -435,7 +435,7 @@ func (u *UserInterface) loopGame() error {
 	go f()
 
 	// Run another loop to watch suspended() as the above update function is never called when the tab is hidden.
-	// To check the document's visiblity, visibilitychange event should usually be used. However, this event is
+	// To check the document's visibility, visibilitychange event should usually be used. However, this event is
 	// not reliable and sometimes it is not fired (#961). Then, watch the state regularly instead.
 	go func() {
 		defer close(resStopAudioCh)
@@ -484,7 +484,7 @@ func (u *UserInterface) init() error {
 		savedCursorY:        math.NaN(),
 	}
 
-	// docuemnt is undefined on node.js
+	// document is undefined on node.js
 	if !document.Truthy() {
 		return nil
 	}

run.go

@@ -578,7 +578,7 @@ func MaxTPS() int {
 }
 
 // ActualTPS returns the current TPS (ticks per second),
-// that represents how many Update function is called in a second.
+// that represents how many times Update function is called in a second.
 //
 // This value is for measurement and/or debug, and your game logic should not rely on this value.
 //
@@ -588,7 +588,7 @@ func ActualTPS() float64 {
 }
 
 // CurrentTPS returns the current TPS (ticks per second),
-// that represents how many Update function is called in a second.
+// that represents how many times Update function is called in a second.
 //
 // Deprecated: as of v2.4. Use ActualTPS instead.
 func CurrentTPS() float64 {
@@ -604,7 +604,7 @@ const SyncWithFPS = clock.SyncWithFPS
 const UncappedTPS = SyncWithFPS
 
 // SetTPS sets the maximum TPS (ticks per second),
-// that represents how many updating function is called per second.
+// that represents how many times updating function is called per second.
 // The initial value is 60.
 //
 // If tps is SyncWithFPS, TPS is uncapped and the game is updated per frame.
@@ -616,7 +616,7 @@ func SetTPS(tps int) {
 }
 
 // SetMaxTPS sets the maximum TPS (ticks per second),
-// that represents how many updating function is called per second.
+// that represents how many times updating function is called per second.
 //
 // Deprecated: as of v2.4. Use SetTPS instead.
 func SetMaxTPS(tps int) {

text/v2/std.go

@@ -62,7 +62,7 @@ func (s *StdFace) copyCheck() {
 	}
 }
 
-// Metrics implelements Face.
+// Metrics implements Face.
 func (s *StdFace) Metrics() Metrics {
 	s.copyCheck()
 
@@ -178,7 +178,7 @@ func (s *StdFace) glyphImageImpl(r rune, subpixelOffset fixed.Point26_6, glyphBo
 	return ebiten.NewImageFromImage(rgba)
 }
 
-// direction implelements Face.
+// direction implements Face.
 func (s *StdFace) direction() Direction {
 	return DirectionLeftToRight
 }
@@ -187,6 +187,6 @@ func (s *StdFace) direction() Direction {
 func (s *StdFace) appendVectorPathForLine(path *vector.Path, line string, originX, originY float64) {
 }
 
-// Metrics implelements Face.
+// Metrics implements Face.
 func (s *StdFace) private() {
 }

text/v2/text.go

@@ -59,15 +59,15 @@ type Metrics struct {
 	HDescent float64
 
 	// VLineGap is the recommended amount of horizontal space between two lines of text in pixels.
-	// If the face is StdFace or the font dosen't support a vertical direction, VLineGap is 0.
+	// If the face is StdFace or the font doesn't support a vertical direction, VLineGap is 0.
 	VLineGap float64
 
 	// VAscent is the distance in pixels from the top of a line to its baseline for vertical lines.
-	// If the face is StdFace or the font dosen't support a vertical direction, VAscent is 0.
+	// If the face is StdFace or the font doesn't support a vertical direction, VAscent is 0.
 	VAscent float64
 
 	// VDescent is the distance in pixels from the top of a line to its baseline for vertical lines.
-	// If the face is StdFace or the font dosen't support a vertical direction, VDescent is 0.
+	// If the face is StdFace or the font doesn't support a vertical direction, VDescent is 0.
 	VDescent float64
 }
 

window.go

@@ -322,7 +322,7 @@ func IsWindowClosingHandled() bool {
 
 // SetWindowMousePassthrough sets whether a mouse cursor passthroughs the window or not on desktops. The default state is false.
 //
-// Even if this is set true, some platforms might requrie a window to be undecorated
+// Even if this is set true, some platforms might require a window to be undecorated
 // in order to make the mouse cursor passthrough the window.
 //
 // SetWindowMousePassthrough works only on desktops.
@@ -335,7 +335,7 @@ func SetWindowMousePassthrough(enabled bool) {
 
 // IsWindowMousePassthrough reports whether a mouse cursor passthroughs the window or not on desktops.
 //
-// IsWindowMousePassthrough alaywas returns false if the platform is not a desktop.
+// IsWindowMousePassthrough always returns false if the platform is not a desktop.
 //
 // IsWindowMousePassthrough is concurrent-safe.
 func IsWindowMousePassthrough() bool {