mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2024-12-25 11:18:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

doc: Improve comments

Browse Source
This commit is contained in:
Hajime Hoshi 2017-10-01 01:59:34 +09:00
parent 23123eb3c0
commit a7fc463d91
10 changed files with 174 additions and 178 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
colorm.go
View File

@ -23,7 +23,7 @@ const ColorMDim = affine.ColorMDim
// A ColorM represents a matrix to transform coloring when rendering an image. // A ColorM represents a matrix to transform coloring when rendering an image.
// //
// A ColorM is applied to the source alpha color // A ColorM is applied to the straight alpha color
// while an Image's pixels' format is alpha premultiplied. // while an Image's pixels' format is alpha premultiplied.
// Before applying a matrix, a color is un-multiplied, and after applying the matrix, // Before applying a matrix, a color is un-multiplied, and after applying the matrix,
// the color is multiplied again. // the color is multiplied again.
@ -61,8 +61,9 @@ func (c *ColorM) Translate(r, g, b, a float64) {
} }
// RotateHue rotates the hue. // RotateHue rotates the hue.
// theta represents rotating angle in radian.
func (c *ColorM) RotateHue(theta float64) { func (c *ColorM) RotateHue(theta float64) {
c.impl.RotateHue(theta) c.ChangeHSV(theta, 1, 1)
} }
// ChangeHSV changes HSV (Hue-Saturation-Value) values. // ChangeHSV changes HSV (Hue-Saturation-Value) values.
@ -81,13 +82,15 @@ func (c *ColorM) Element(i, j int) float64 {
} }
// SetElement sets an element at (i, j). // SetElement sets an element at (i, j).
func (c *ColorM) SetElement(i, j int, value float64) { func (c *ColorM) SetElement(i, j int, element float64) {
c.impl.SetElement(i, j, value) c.impl.SetElement(i, j, element)
} }
// Monochrome returns a color matrix to make an image monochrome. // Monochrome is deprecated as of 1.6.0-alpha. Use ChangeHSV(0, 0, 1) instead.
func Monochrome() ColorM { func Monochrome() ColorM {
return ColorM{affine.Monochrome()} c := ColorM{}
c.ChangeHSV(0, 0, 1)
return c
} }
// ScaleColor is deprecated as of 1.2.0-alpha. Use Scale instead. // ScaleColor is deprecated as of 1.2.0-alpha. Use Scale instead.

66
gamepad.go
View File

@ -23,37 +23,37 @@ type GamepadButton int
// GamepadButtons // GamepadButtons
const ( const (
GamepadButton0 = GamepadButton(ui.GamepadButton0) GamepadButton0 GamepadButton = GamepadButton(ui.GamepadButton0)
GamepadButton1 = GamepadButton(ui.GamepadButton1) GamepadButton1 GamepadButton = GamepadButton(ui.GamepadButton1)
GamepadButton2 = GamepadButton(ui.GamepadButton2) GamepadButton2 GamepadButton = GamepadButton(ui.GamepadButton2)
GamepadButton3 = GamepadButton(ui.GamepadButton3) GamepadButton3 GamepadButton = GamepadButton(ui.GamepadButton3)
GamepadButton4 = GamepadButton(ui.GamepadButton4) GamepadButton4 GamepadButton = GamepadButton(ui.GamepadButton4)
GamepadButton5 = GamepadButton(ui.GamepadButton5) GamepadButton5 GamepadButton = GamepadButton(ui.GamepadButton5)
GamepadButton6 = GamepadButton(ui.GamepadButton6) GamepadButton6 GamepadButton = GamepadButton(ui.GamepadButton6)
GamepadButton7 = GamepadButton(ui.GamepadButton7) GamepadButton7 GamepadButton = GamepadButton(ui.GamepadButton7)
GamepadButton8 = GamepadButton(ui.GamepadButton8) GamepadButton8 GamepadButton = GamepadButton(ui.GamepadButton8)
GamepadButton9 = GamepadButton(ui.GamepadButton9) GamepadButton9 GamepadButton = GamepadButton(ui.GamepadButton9)
GamepadButton10 = GamepadButton(ui.GamepadButton10) GamepadButton10 GamepadButton = GamepadButton(ui.GamepadButton10)
GamepadButton11 = GamepadButton(ui.GamepadButton11) GamepadButton11 GamepadButton = GamepadButton(ui.GamepadButton11)
GamepadButton12 = GamepadButton(ui.GamepadButton12) GamepadButton12 GamepadButton = GamepadButton(ui.GamepadButton12)
GamepadButton13 = GamepadButton(ui.GamepadButton13) GamepadButton13 GamepadButton = GamepadButton(ui.GamepadButton13)
GamepadButton14 = GamepadButton(ui.GamepadButton14) GamepadButton14 GamepadButton = GamepadButton(ui.GamepadButton14)
GamepadButton15 = GamepadButton(ui.GamepadButton15) GamepadButton15 GamepadButton = GamepadButton(ui.GamepadButton15)
GamepadButton16 = GamepadButton(ui.GamepadButton16) GamepadButton16 GamepadButton = GamepadButton(ui.GamepadButton16)
GamepadButton17 = GamepadButton(ui.GamepadButton17) GamepadButton17 GamepadButton = GamepadButton(ui.GamepadButton17)
GamepadButton18 = GamepadButton(ui.GamepadButton18) GamepadButton18 GamepadButton = GamepadButton(ui.GamepadButton18)
GamepadButton19 = GamepadButton(ui.GamepadButton19) GamepadButton19 GamepadButton = GamepadButton(ui.GamepadButton19)
GamepadButton20 = GamepadButton(ui.GamepadButton20) GamepadButton20 GamepadButton = GamepadButton(ui.GamepadButton20)
GamepadButton21 = GamepadButton(ui.GamepadButton21) GamepadButton21 GamepadButton = GamepadButton(ui.GamepadButton21)
GamepadButton22 = GamepadButton(ui.GamepadButton22) GamepadButton22 GamepadButton = GamepadButton(ui.GamepadButton22)
GamepadButton23 = GamepadButton(ui.GamepadButton23) GamepadButton23 GamepadButton = GamepadButton(ui.GamepadButton23)
GamepadButton24 = GamepadButton(ui.GamepadButton24) GamepadButton24 GamepadButton = GamepadButton(ui.GamepadButton24)
GamepadButton25 = GamepadButton(ui.GamepadButton25) GamepadButton25 GamepadButton = GamepadButton(ui.GamepadButton25)
GamepadButton26 = GamepadButton(ui.GamepadButton26) GamepadButton26 GamepadButton = GamepadButton(ui.GamepadButton26)
GamepadButton27 = GamepadButton(ui.GamepadButton27) GamepadButton27 GamepadButton = GamepadButton(ui.GamepadButton27)
GamepadButton28 = GamepadButton(ui.GamepadButton28) GamepadButton28 GamepadButton = GamepadButton(ui.GamepadButton28)
GamepadButton29 = GamepadButton(ui.GamepadButton29) GamepadButton29 GamepadButton = GamepadButton(ui.GamepadButton29)
GamepadButton30 = GamepadButton(ui.GamepadButton30) GamepadButton30 GamepadButton = GamepadButton(ui.GamepadButton30)
GamepadButton31 = GamepadButton(ui.GamepadButton31) GamepadButton31 GamepadButton = GamepadButton(ui.GamepadButton31)
GamepadButtonMax = GamepadButton31 GamepadButtonMax GamepadButton = GamepadButton31
) )

4
genkeys.go
View File

@ -147,8 +147,8 @@ type Key int
// Keys // Keys
const ( const (
{{range $index, $name := .KeyNames}}Key{{$name}} = Key(ui.Key{{$name}}) {{range $index, $name := .KeyNames}}Key{{$name}} Key = Key(ui.Key{{$name}})
{{end}} KeyMax = Key{{.LastKeyName}} {{end}} KeyMax Key = Key{{.LastKeyName}}
) )
` `

3
geom.go
View File

@ -34,7 +34,7 @@ func (g *GeoM) Reset() {
} }
// Apply pre-multiplies a vector (x, y, 1) by the matrix. // Apply pre-multiplies a vector (x, y, 1) by the matrix.
// In other words, Apply calculates GeoM * (x, y, 1). // In other words, Apply calculates GeoM * (x, y, 1)^T.
// The return value is x and y values of the result vector. // The return value is x and y values of the result vector.
func (g *GeoM) Apply(x, y float64) (x2, y2 float64) { func (g *GeoM) Apply(x, y float64) (x2, y2 float64) {
return g.impl.Apply(x, y) return g.impl.Apply(x, y)
@ -84,6 +84,7 @@ func (g *GeoM) Translate(tx, ty float64) {
} }
// Rotate rotates the matrix by theta. // Rotate rotates the matrix by theta.
// The unit is radian.
func (g *GeoM) Rotate(theta float64) { func (g *GeoM) Rotate(theta float64) {
g.impl.Rotate(theta) g.impl.Rotate(theta)
} }

34
image.go
View File

@ -60,17 +60,11 @@ func (i *Image) Fill(clr color.Color) error {
return nil return nil
} }
// DrawImage draws the given image on the receiver image. // DrawImage draws the given image on the image i.
// //
// This method accepts the options. // DrawImage accepts the options. For details, see the document of DrawImageOptions.
// The parts of the given image at the parts of the destination.
// After determining parts to draw, this applies the geometry matrix and the color matrix.
// //
// Here are the default values: // DrawImage determinines the part to draw, then DrawImage applies the geometry matrix and the color matrix.
// SourceRect: nil. When SourceRect is nil, the whole source image is used.
// GeoM: Identity matrix
// ColorM: Identity matrix (that changes no colors)
// CompositeMode: CompositeModeSourceOver (regular alpha blending)
// //
// For drawing, the pixels of the argument image at the time of this call is adopted. // For drawing, the pixels of the argument image at the time of this call is adopted.
// Even if the argument image is mutated after this call, // Even if the argument image is mutated after this call,
@ -156,9 +150,11 @@ func (i *Image) ColorModel() color.Model {
// At returns the color of the image at (x, y). // At returns the color of the image at (x, y).
// //
// This method loads pixels from GPU to system memory if necessary. // At loads pixels from GPU to system memory if necessary, which means that At can be slow.
// //
// This method can't be called before the main loop (ebiten.Run) starts (as of version 1.4.0-alpha). // At always returns color.Transparend if the image is disposed.
//
// At can't be called before the main loop (ebiten.Run) starts (as of version 1.4.0-alpha).
func (i *Image) At(x, y int) color.Color { func (i *Image) At(x, y int) color.Color {
if i.restorable == nil { if i.restorable == nil {
return color.Transparent return color.Transparent
@ -171,10 +167,9 @@ func (i *Image) At(x, y int) color.Color {
return clr return clr
} }
// Dispose disposes the image data. After disposing, the image becomes invalid. // Dispose disposes the image data. After disposing, most of image functions do nothing and returns meaningless values.
// This is useful to save memory.
// //
// The behavior of any functions for a disposed image is undefined. // Dispose is useful to save memory.
// //
// When the image is disposed, Dipose does nothing. // When the image is disposed, Dipose does nothing.
// //
@ -219,9 +214,20 @@ func (i *Image) ReplacePixels(p []uint8) error {
// A DrawImageOptions represents options to render an image on an image. // A DrawImageOptions represents options to render an image on an image.
type DrawImageOptions struct { type DrawImageOptions struct {
// SourceRect is the region of the source image to draw.
// If SourceRect is nil, whole image is used.
SourceRect *image.Rectangle SourceRect *image.Rectangle
// GeoM is a geometry matrix to draw.
// The default (zero) value is identify, which draws the image at (0, 0).
GeoM GeoM GeoM GeoM
// ColorM is a color matrix to draw.
// The default (zero) value is identity, which doesn't change any color.
ColorM ColorM ColorM ColorM
// CompositeMode is a composite mode to draw.
// The default (zero) value is regular alpha blending.
CompositeMode CompositeMode CompositeMode CompositeMode
// Deprecated (as of 1.5.0-alpha): Use SourceRect instead. // Deprecated (as of 1.5.0-alpha): Use SourceRect instead.

18
input.go
View File

@ -23,7 +23,7 @@ import (
// InputChars represents the environment's locale-dependent translation of keyboard // InputChars represents the environment's locale-dependent translation of keyboard
// input to Unicode characters. // input to Unicode characters.
// //
// IsKeyPressed is based on a mapping of device codes to input device keys. // IsKeyPressed is based on a mapping of device (US keyboard) codes to input device keys.
// "Control" and modifier keys should be handled with IsKeyPressed. // "Control" and modifier keys should be handled with IsKeyPressed.
// //
// This function is concurrent-safe. // This function is concurrent-safe.
@ -56,46 +56,42 @@ func IsMouseButtonPressed(mouseButton MouseButton) bool {
return ui.CurrentInput().IsMouseButtonPressed(ui.MouseButton(mouseButton)) return ui.CurrentInput().IsMouseButtonPressed(ui.MouseButton(mouseButton))
} }
// GamepadAxisNum returns the number of axes of the gamepad. // GamepadAxisNum returns the number of axes of the gamepad (id).
// //
// This function is concurrent-safe. // This function is concurrent-safe.
// //
// NOTE: Gamepad API is available only on desktops, Chrome and Firefox. // NOTE: Gamepad API is available only on desktops, Chrome and Firefox.
// To use this API, browsers might require rebooting the browser.
func GamepadAxisNum(id int) int { func GamepadAxisNum(id int) int {
return ui.CurrentInput().GamepadAxisNum(id) return ui.CurrentInput().GamepadAxisNum(id)
} }
// GamepadAxis returns the float value [-1.0 - 1.0] of the axis. // GamepadAxis returns the float value [-1.0 - 1.0] of the given gamepad (id)'s axis (axis).
// //
// This function is concurrent-safe. // This function is concurrent-safe.
// //
// NOTE: Gamepad API is available only on desktops, Chrome and Firefox. // NOTE: Gamepad API is available only on desktops, Chrome and Firefox.
// To use this API, browsers might require rebooting the browser.
func GamepadAxis(id int, axis int) float64 { func GamepadAxis(id int, axis int) float64 {
return ui.CurrentInput().GamepadAxis(id, axis) return ui.CurrentInput().GamepadAxis(id, axis)
} }
// GamepadButtonNum returns the number of the buttons of the gamepad. // GamepadButtonNum returns the number of the buttons of the given gamepad (id).
// //
// This function is concurrent-safe. // This function is concurrent-safe.
// //
// NOTE: Gamepad API is available only on desktops, Chrome and Firefox. // NOTE: Gamepad API is available only on desktops, Chrome and Firefox.
// To use this API, browsers might require rebooting the browser.
func GamepadButtonNum(id int) int { func GamepadButtonNum(id int) int {
return ui.CurrentInput().GamepadButtonNum(id) return ui.CurrentInput().GamepadButtonNum(id)
} }
// IsGamepadButtonPressed returns the boolean indicating the buttons is pressed or not. // IsGamepadButtonPressed returns the boolean indicating the given button of the gamepad (id) is pressed or not.
// //
// This function is concurrent-safe. // This function is concurrent-safe.
// //
// The key states vary depending on environments. // The button states vary depending on environments.
// There can be differences even between Chrome and Firefox. // There can be differences even between Chrome and Firefox.
// Don't assume that states of a keys are always same when same buttons are pressed. // Don't assume that returned values are always same when same buttons are pressed.
// //
// NOTE: Gamepad API is available only on desktops, Chrome and Firefox. // NOTE: Gamepad API is available only on desktops, Chrome and Firefox.
// To use this API, browsers might require rebooting the browser.
func IsGamepadButtonPressed(id int, button GamepadButton) bool { func IsGamepadButtonPressed(id int, button GamepadButton) bool {
return ui.CurrentInput().IsGamepadButtonPressed(id, ui.GamepadButton(button)) return ui.CurrentInput().IsGamepadButtonPressed(id, ui.GamepadButton(button))
} }

16
internal/affine/colorm.go
View File

@ -149,11 +149,6 @@ func (c *ColorM) Translate(r, g, b, a float64) {
c.elements = es c.elements = es
} }
// RotateHue rotates the hue.
func (c *ColorM) RotateHue(theta float64) {
c.ChangeHSV(theta, 1, 1)
}
var ( var (
// The YCbCr value ranges are: // The YCbCr value ranges are:
// Y: [ 0 - 1 ] // Y: [ 0 - 1 ]
@ -200,14 +195,3 @@ func (c *ColorM) ChangeHSV(hueTheta float64, saturationScale float64, valueScale
c.Scale(v, s*v, s*v, 1) c.Scale(v, s*v, s*v, 1)
c.Concat(&yCbCrToRgb) c.Concat(&yCbCrToRgb)
} }
var monochrome ColorM
func init() {
monochrome.ChangeHSV(0, 0, 1)
}
// Monochrome returns a color matrix to make an image monochrome.
func Monochrome() ColorM {
return monochrome
}

158
keys.go
View File

@ -27,83 +27,83 @@ type Key int
// Keys // Keys
const ( const (
Key0 = Key(ui.Key0) Key0 Key = Key(ui.Key0)
Key1 = Key(ui.Key1) Key1 Key = Key(ui.Key1)
Key2 = Key(ui.Key2) Key2 Key = Key(ui.Key2)
Key3 = Key(ui.Key3) Key3 Key = Key(ui.Key3)
Key4 = Key(ui.Key4) Key4 Key = Key(ui.Key4)
Key5 = Key(ui.Key5) Key5 Key = Key(ui.Key5)
Key6 = Key(ui.Key6) Key6 Key = Key(ui.Key6)
Key7 = Key(ui.Key7) Key7 Key = Key(ui.Key7)
Key8 = Key(ui.Key8) Key8 Key = Key(ui.Key8)
Key9 = Key(ui.Key9) Key9 Key = Key(ui.Key9)
KeyA = Key(ui.KeyA) KeyA Key = Key(ui.KeyA)
KeyB = Key(ui.KeyB) KeyB Key = Key(ui.KeyB)
KeyC = Key(ui.KeyC) KeyC Key = Key(ui.KeyC)
KeyD = Key(ui.KeyD) KeyD Key = Key(ui.KeyD)
KeyE = Key(ui.KeyE) KeyE Key = Key(ui.KeyE)
KeyF = Key(ui.KeyF) KeyF Key = Key(ui.KeyF)
KeyG = Key(ui.KeyG) KeyG Key = Key(ui.KeyG)
KeyH = Key(ui.KeyH) KeyH Key = Key(ui.KeyH)
KeyI = Key(ui.KeyI) KeyI Key = Key(ui.KeyI)
KeyJ = Key(ui.KeyJ) KeyJ Key = Key(ui.KeyJ)
KeyK = Key(ui.KeyK) KeyK Key = Key(ui.KeyK)
KeyL = Key(ui.KeyL) KeyL Key = Key(ui.KeyL)
KeyM = Key(ui.KeyM) KeyM Key = Key(ui.KeyM)
KeyN = Key(ui.KeyN) KeyN Key = Key(ui.KeyN)
KeyO = Key(ui.KeyO) KeyO Key = Key(ui.KeyO)
KeyP = Key(ui.KeyP) KeyP Key = Key(ui.KeyP)
KeyQ = Key(ui.KeyQ) KeyQ Key = Key(ui.KeyQ)
KeyR = Key(ui.KeyR) KeyR Key = Key(ui.KeyR)
KeyS = Key(ui.KeyS) KeyS Key = Key(ui.KeyS)
KeyT = Key(ui.KeyT) KeyT Key = Key(ui.KeyT)
KeyU = Key(ui.KeyU) KeyU Key = Key(ui.KeyU)
KeyV = Key(ui.KeyV) KeyV Key = Key(ui.KeyV)
KeyW = Key(ui.KeyW) KeyW Key = Key(ui.KeyW)
KeyX = Key(ui.KeyX) KeyX Key = Key(ui.KeyX)
KeyY = Key(ui.KeyY) KeyY Key = Key(ui.KeyY)
KeyZ = Key(ui.KeyZ) KeyZ Key = Key(ui.KeyZ)
KeyAlt = Key(ui.KeyAlt) KeyAlt Key = Key(ui.KeyAlt)
KeyApostrophe = Key(ui.KeyApostrophe) KeyApostrophe Key = Key(ui.KeyApostrophe)
KeyBackslash = Key(ui.KeyBackslash) KeyBackslash Key = Key(ui.KeyBackslash)
KeyBackspace = Key(ui.KeyBackspace) KeyBackspace Key = Key(ui.KeyBackspace)
KeyCapsLock = Key(ui.KeyCapsLock) KeyCapsLock Key = Key(ui.KeyCapsLock)
KeyComma = Key(ui.KeyComma) KeyComma Key = Key(ui.KeyComma)
KeyControl = Key(ui.KeyControl) KeyControl Key = Key(ui.KeyControl)
KeyDelete = Key(ui.KeyDelete) KeyDelete Key = Key(ui.KeyDelete)
KeyDown = Key(ui.KeyDown) KeyDown Key = Key(ui.KeyDown)
KeyEnd = Key(ui.KeyEnd) KeyEnd Key = Key(ui.KeyEnd)
KeyEnter = Key(ui.KeyEnter) KeyEnter Key = Key(ui.KeyEnter)
KeyEqual = Key(ui.KeyEqual) KeyEqual Key = Key(ui.KeyEqual)
KeyEscape = Key(ui.KeyEscape) KeyEscape Key = Key(ui.KeyEscape)
KeyF1 = Key(ui.KeyF1) KeyF1 Key = Key(ui.KeyF1)
KeyF2 = Key(ui.KeyF2) KeyF2 Key = Key(ui.KeyF2)
KeyF3 = Key(ui.KeyF3) KeyF3 Key = Key(ui.KeyF3)
KeyF4 = Key(ui.KeyF4) KeyF4 Key = Key(ui.KeyF4)
KeyF5 = Key(ui.KeyF5) KeyF5 Key = Key(ui.KeyF5)
KeyF6 = Key(ui.KeyF6) KeyF6 Key = Key(ui.KeyF6)
KeyF7 = Key(ui.KeyF7) KeyF7 Key = Key(ui.KeyF7)
KeyF8 = Key(ui.KeyF8) KeyF8 Key = Key(ui.KeyF8)
KeyF9 = Key(ui.KeyF9) KeyF9 Key = Key(ui.KeyF9)
KeyF10 = Key(ui.KeyF10) KeyF10 Key = Key(ui.KeyF10)
KeyF11 = Key(ui.KeyF11) KeyF11 Key = Key(ui.KeyF11)
KeyF12 = Key(ui.KeyF12) KeyF12 Key = Key(ui.KeyF12)
KeyGraveAccent = Key(ui.KeyGraveAccent) KeyGraveAccent Key = Key(ui.KeyGraveAccent)
KeyHome = Key(ui.KeyHome) KeyHome Key = Key(ui.KeyHome)
KeyInsert = Key(ui.KeyInsert) KeyInsert Key = Key(ui.KeyInsert)
KeyLeft = Key(ui.KeyLeft) KeyLeft Key = Key(ui.KeyLeft)
KeyLeftBracket = Key(ui.KeyLeftBracket) KeyLeftBracket Key = Key(ui.KeyLeftBracket)
KeyMinus = Key(ui.KeyMinus) KeyMinus Key = Key(ui.KeyMinus)
KeyPageDown = Key(ui.KeyPageDown) KeyPageDown Key = Key(ui.KeyPageDown)
KeyPageUp = Key(ui.KeyPageUp) KeyPageUp Key = Key(ui.KeyPageUp)
KeyPeriod = Key(ui.KeyPeriod) KeyPeriod Key = Key(ui.KeyPeriod)
KeyRight = Key(ui.KeyRight) KeyRight Key = Key(ui.KeyRight)
KeyRightBracket = Key(ui.KeyRightBracket) KeyRightBracket Key = Key(ui.KeyRightBracket)
KeySemicolon = Key(ui.KeySemicolon) KeySemicolon Key = Key(ui.KeySemicolon)
KeyShift = Key(ui.KeyShift) KeyShift Key = Key(ui.KeyShift)
KeySlash = Key(ui.KeySlash) KeySlash Key = Key(ui.KeySlash)
KeySpace = Key(ui.KeySpace) KeySpace Key = Key(ui.KeySpace)
KeyTab = Key(ui.KeyTab) KeyTab Key = Key(ui.KeyTab)
KeyUp = Key(ui.KeyUp) KeyUp Key = Key(ui.KeyUp)
KeyMax = KeyUp KeyMax Key = KeyUp
) )

6
mousebuttons.go
View File

@ -23,7 +23,7 @@ type MouseButton int
// MouseButtons // MouseButtons
const ( const (
MouseButtonLeft = MouseButton(ui.MouseButtonLeft) MouseButtonLeft MouseButton = MouseButton(ui.MouseButtonLeft)
MouseButtonRight = MouseButton(ui.MouseButtonRight) MouseButtonRight MouseButton = MouseButton(ui.MouseButtonRight)
MouseButtonMiddle = MouseButton(ui.MouseButtonMiddle) MouseButtonMiddle MouseButton = MouseButton(ui.MouseButtonMiddle)
) )

26
run.go
View File

@ -27,12 +27,11 @@ const FPS = clock.FPS
// CurrentFPS returns the current number of frames per second of rendering. // CurrentFPS returns the current number of frames per second of rendering.
// //
// This function is concurrent-safe. // The returned value represents how many times rendering happens in a second and
//
// This value represents how many times rendering happens in a second and
// NOT how many times logical game updating (a passed function to Run) happens. // NOT how many times logical game updating (a passed function to Run) happens.
// Note that logical game updating is assured to happen 60 times in a second // Note that logical game updating is assured to happen 60 times in a second.
// as long as the screen is active. //
// This function is concurrent-safe.
func CurrentFPS() float64 { func CurrentFPS() float64 {
return clock.CurrentFPS() return clock.CurrentFPS()
} }
@ -93,13 +92,18 @@ func (u *updater) Invalidate() {
// Run runs the game. // Run runs the game.
// f is a function which is called at every frame. // f is a function which is called at every frame.
// The argument (*Image) is the render target that represents the screen. // The argument (*Image) is the render target that represents the screen.
// The screen size is based on the given values (width and height).
// //
// Run must be called from the main thread. // A window size is based on the given values (width, height and scale).
// Note that ebiten bounds the main goroutine to the main OS thread by runtime.LockOSThread. // scale is used to enlarge the screen.
//
// Run must be called from the OS main thread.
// Note that Ebiten bounds the main goroutine to the main OS thread by runtime.LockOSThread.
// //
// The given function f is guaranteed to be called 60 times a second // The given function f is guaranteed to be called 60 times a second
// even if a rendering frame is skipped. // even if a rendering frame is skipped.
// f is not called when the screen is not shown. // f is not called when the window is in background by default.
// This setting is configurable with SetRunnableInBackground.
// //
// The given scale is ignored on fullscreen mode. // The given scale is ignored on fullscreen mode.
// //
@ -107,6 +111,8 @@ func (u *updater) Invalidate() {
// In the case of 2), Run returns the same error. // In the case of 2), Run returns the same error.
// //
// The size unit is device-independent pixel. // The size unit is device-independent pixel.
//
// Don't call Run twice or more in one process.
func Run(f func(*Image) error, width, height int, scale float64, title string) error { func Run(f func(*Image) error, width, height int, scale float64, title string) error {
ch := make(chan error) ch := make(chan error)
go func() { go func() {
@ -131,8 +137,6 @@ func Run(f func(*Image) error, width, height int, scale float64, title string) e
// //
// Typically, Ebiten users don't have to call this directly. // Typically, Ebiten users don't have to call this directly.
// Instead, functions in github.com/hajimehoshi/ebiten/mobile module call this. // Instead, functions in github.com/hajimehoshi/ebiten/mobile module call this.
//
// The size unit is device-independent pixel.
func RunWithoutMainLoop(f func(*Image) error, width, height int, scale float64, title string) <-chan error { func RunWithoutMainLoop(f func(*Image) error, width, height int, scale float64, title string) <-chan error {
ch := make(chan error) ch := make(chan error)
go func() { go func() {
@ -202,6 +206,8 @@ func SetCursorVisibility(visible bool) {
// IsFullscreen returns a boolean value indicating whether // IsFullscreen returns a boolean value indicating whether
// the current mode is fullscreen or not. // the current mode is fullscreen or not.
// //
// IsFullscreen always returns false on mobiles.
//
// This function is concurrent-safe. // This function is concurrent-safe.
func IsFullscreen() bool { func IsFullscreen() bool {
return ui.IsFullscreen() return ui.IsFullscreen()