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internal/gamepad: add comments and make Vibrate concurrent-safe

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This commit is contained in:
Hajime Hoshi 2022-01-29 03:48:36 +09:00
parent 1d59023649
commit 178a1d929c
1 changed files with 19 additions and 0 deletions
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19
internal/gamepad/gamepad.go
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@ -51,14 +51,17 @@ func init() {
theGamepads.nativeGamepads.gamepads = &theGamepads theGamepads.nativeGamepads.gamepads = &theGamepads
} }
// AppendGamepadIDs is concurrent-safe.
func AppendGamepadIDs(ids []driver.GamepadID) []driver.GamepadID { func AppendGamepadIDs(ids []driver.GamepadID) []driver.GamepadID {
return theGamepads.appendGamepadIDs(ids) return theGamepads.appendGamepadIDs(ids)
} }
// Update is concurrent-safe.
func Update() { func Update() {
theGamepads.update() theGamepads.update()
} }
// Get is concurrent-safe.
func Get(id driver.GamepadID) *Gamepad { func Get(id driver.GamepadID) *Gamepad {
return theGamepads.get(id) return theGamepads.get(id)
} }
@ -160,6 +163,7 @@ func (g *Gamepad) update() {
g.nativeGamepad.update() g.nativeGamepad.update()
} }
// Name is concurrent-safe.
func (g *Gamepad) Name() string { func (g *Gamepad) Name() string {
// This is immutable and doesn't have to be protected by a mutex. // This is immutable and doesn't have to be protected by a mutex.
if name := gamepaddb.Name(g.sdlID); name != "" { if name := gamepaddb.Name(g.sdlID); name != "" {
@ -168,11 +172,13 @@ func (g *Gamepad) Name() string {
return g.name return g.name
} }
// SDLID is concurrent-safe.
func (g *Gamepad) SDLID() string { func (g *Gamepad) SDLID() string {
// This is immutable and doesn't have to be protected by a mutex. // This is immutable and doesn't have to be protected by a mutex.
return g.sdlID return g.sdlID
} }
// AxisNum is concurrent-safe.
func (g *Gamepad) AxisNum() int { func (g *Gamepad) AxisNum() int {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -180,6 +186,7 @@ func (g *Gamepad) AxisNum() int {
return g.nativeGamepad.axisNum() return g.nativeGamepad.axisNum()
} }
// ButtonNum is concurrent-safe.
func (g *Gamepad) ButtonNum() int { func (g *Gamepad) ButtonNum() int {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -187,6 +194,7 @@ func (g *Gamepad) ButtonNum() int {
return g.nativeGamepad.buttonNum() return g.nativeGamepad.buttonNum()
} }
// HatNum is concurrent-safe.
func (g *Gamepad) HatNum() int { func (g *Gamepad) HatNum() int {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -194,6 +202,7 @@ func (g *Gamepad) HatNum() int {
return g.nativeGamepad.hatNum() return g.nativeGamepad.hatNum()
} }
// Axis is concurrent-safe.
func (g *Gamepad) Axis(axis int) float64 { func (g *Gamepad) Axis(axis int) float64 {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -201,6 +210,7 @@ func (g *Gamepad) Axis(axis int) float64 {
return g.nativeGamepad.axisValue(axis) return g.nativeGamepad.axisValue(axis)
} }
// Button is concurrent-safe.
func (g *Gamepad) Button(button int) bool { func (g *Gamepad) Button(button int) bool {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -208,6 +218,7 @@ func (g *Gamepad) Button(button int) bool {
return g.nativeGamepad.isButtonPressed(button) return g.nativeGamepad.isButtonPressed(button)
} }
// Hat is concurrent-safe.
func (g *Gamepad) Hat(hat int) int { func (g *Gamepad) Hat(hat int) int {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -215,6 +226,7 @@ func (g *Gamepad) Hat(hat int) int {
return g.nativeGamepad.hatState(hat) return g.nativeGamepad.hatState(hat)
} }
// IsStandardLayoutAvailable is concurrent-safe.
func (g *Gamepad) IsStandardLayoutAvailable() bool { func (g *Gamepad) IsStandardLayoutAvailable() bool {
g.m.Lock() g.m.Lock()
defer g.m.Unlock() defer g.m.Unlock()
@ -225,6 +237,7 @@ func (g *Gamepad) IsStandardLayoutAvailable() bool {
return g.hasOwnStandardLayoutMapping() return g.hasOwnStandardLayoutMapping()
} }
// StandardAxisValue is concurrent-safe.
func (g *Gamepad) StandardAxisValue(axis driver.StandardGamepadAxis) float64 { func (g *Gamepad) StandardAxisValue(axis driver.StandardGamepadAxis) float64 {
if gamepaddb.HasStandardLayoutMapping(g.sdlID) { if gamepaddb.HasStandardLayoutMapping(g.sdlID) {
return gamepaddb.AxisValue(g.sdlID, axis, g) return gamepaddb.AxisValue(g.sdlID, axis, g)
@ -235,6 +248,7 @@ func (g *Gamepad) StandardAxisValue(axis driver.StandardGamepadAxis) float64 {
return 0 return 0
} }
// StandardButtonValue is concurrent-safe.
func (g *Gamepad) StandardButtonValue(button driver.StandardGamepadButton) float64 { func (g *Gamepad) StandardButtonValue(button driver.StandardGamepadButton) float64 {
if gamepaddb.HasStandardLayoutMapping(g.sdlID) { if gamepaddb.HasStandardLayoutMapping(g.sdlID) {
return gamepaddb.ButtonValue(g.sdlID, button, g) return gamepaddb.ButtonValue(g.sdlID, button, g)
@ -245,6 +259,7 @@ func (g *Gamepad) StandardButtonValue(button driver.StandardGamepadButton) float
return 0 return 0
} }
// IsStandardButtonPressed is concurrent-safe.
func (g *Gamepad) IsStandardButtonPressed(button driver.StandardGamepadButton) bool { func (g *Gamepad) IsStandardButtonPressed(button driver.StandardGamepadButton) bool {
if gamepaddb.HasStandardLayoutMapping(g.sdlID) { if gamepaddb.HasStandardLayoutMapping(g.sdlID) {
return gamepaddb.IsButtonPressed(g.sdlID, button, g) return gamepaddb.IsButtonPressed(g.sdlID, button, g)
@ -255,6 +270,10 @@ func (g *Gamepad) IsStandardButtonPressed(button driver.StandardGamepadButton) b
return false return false
} }
// Vibrate is concurrent-safe.
func (g *Gamepad) Vibrate(duration time.Duration, strongMagnitude float64, weakMagnitude float64) { func (g *Gamepad) Vibrate(duration time.Duration, strongMagnitude float64, weakMagnitude float64) {
g.m.Lock()
defer g.m.Unlock()
g.nativeGamepad.vibrate(duration, strongMagnitude, weakMagnitude) g.nativeGamepad.vibrate(duration, strongMagnitude, weakMagnitude)
} }