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Code Issues Packages Projects Releases Wiki Activity

inpututil: Add IsKeyJustReleased and IsMouseButtonJustReleased (#504)

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This commit is contained in:
Hajime Hoshi 2018-02-17 03:10:40 +09:00
parent ed9de264f0
commit 87f207d862
1 changed files with 33 additions and 4 deletions
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29
inpututil/inpututil.go
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@ -25,7 +25,11 @@ import (
type inputState struct {
keyStates map[ebiten.Key]int
prevKeyStates map[ebiten.Key]int
mouseButtonStates map[ebiten.MouseButton]int
prevMouseButtonStates map[ebiten.MouseButton]int
gamepadButtonStates map[int]map[ebiten.GamepadButton]int
touchStates map[int]int
@ -34,7 +38,11 @@ type inputState struct {
var theInputState = &inputState{
keyStates: map[ebiten.Key]int{},
prevKeyStates: map[ebiten.Key]int{},
mouseButtonStates: map[ebiten.MouseButton]int{},
prevMouseButtonStates: map[ebiten.MouseButton]int{},
gamepadButtonStates: map[int]map[ebiten.GamepadButton]int{},
touchStates: map[int]int{},
}
@ -52,6 +60,7 @@ func (i *inputState) update() {
// Keyboard
for k := ebiten.Key(0); k <= ebiten.KeyMax; k++ {
i.prevKeyStates[k] = i.keyStates[k]
if ebiten.IsKeyPressed(k) {
i.keyStates[k]++
} else {
@ -65,6 +74,7 @@ func (i *inputState) update() {
ebiten.MouseButtonRight,
ebiten.MouseButtonMiddle,
} {
i.prevMouseButtonStates[b] = i.mouseButtonStates[b]
if ebiten.IsMouseButtonPressed(b) {
i.mouseButtonStates[b]++
} else {
@ -121,6 +131,15 @@ func IsKeyJustPressed(key ebiten.Key) bool {
return KeyPressDuration(key) == 1
}
// IsKeyJustReleased returns a boolean value indicating
// whether the given key is released just in the current frame.
func IsKeyJustReleased(key ebiten.Key) bool {
theInputState.m.RLock()
r := theInputState.keyStates[key] == 0 && theInputState.prevKeyStates[key] > 0
theInputState.m.RUnlock()
return r
}
// KeyPressDuration returns how long the key is pressed in frames.
func KeyPressDuration(key ebiten.Key) int {
theInputState.m.RLock()
@ -135,6 +154,16 @@ func IsMouseButtonJustPressed(button ebiten.MouseButton) bool {
return MouseButtonPressDuration(button) == 1
}
// IsMouseButtonJustReleased returns a boolean value indicating
// whether the given mouse button is released just in the current frame.
func IsMouseButtonJustReleased(button ebiten.MouseButton) bool {
theInputState.m.RLock()
r := theInputState.mouseButtonStates[button] == 0 &&
theInputState.prevMouseButtonStates[button] > 0
theInputState.m.RUnlock()
return r
}
// MouseButtonPressDuration returns how long the mouse button is pressed in frames.
func MouseButtonPressDuration(button ebiten.MouseButton) int {
theInputState.m.RLock()