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ebiten: Guarantee that CursorPosition returns (0, 0) in the very initial state on desktops

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This change also guarantees that CursorPosition always returns (0, 0)
on mobiles.
This commit is contained in:
Hajime Hoshi 2021-04-07 02:53:57 +09:00
parent ad3c76b6d9
commit 0246a6407e
2 changed files with 5 additions and 5 deletions
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4
input.go
View File

@ -81,6 +81,10 @@ func IsKeyPressed(key Key) bool {
// CursorPosition returns a position of a mouse cursor relative to the game screen (window). The cursor position is // CursorPosition returns a position of a mouse cursor relative to the game screen (window). The cursor position is
// 'logical' position and this considers the scale of the screen. // 'logical' position and this considers the scale of the screen.
// //
// CursorPosition returns (0, 0) before the main loop on desktops and browsers.
//
// CursorPosition always returns (0, 0) on mobiles.
//
// CursorPosition is concurrent-safe. // CursorPosition is concurrent-safe.
func CursorPosition() (x, y int) { func CursorPosition() (x, y int) {
return uiDriver().Input().CursorPosition() return uiDriver().Input().CursorPosition()

6
internal/uidriver/mobile/input.go
View File

@ -26,8 +26,6 @@ type pos struct {
} }
type Input struct { type Input struct {
cursorX int
cursorY int
keys map[driver.Key]struct{} keys map[driver.Key]struct{}
runes []rune runes []rune
touches map[driver.TouchID]pos touches map[driver.TouchID]pos
@ -36,9 +34,7 @@ type Input struct {
} }
func (i *Input) CursorPosition() (x, y int) { func (i *Input) CursorPosition() (x, y int) {
i.ui.m.RLock() return 0, 0
defer i.ui.m.RUnlock()
return i.ui.adjustPosition(i.cursorX, i.cursorY)
} }
func (i *Input) GamepadIDs() []driver.GamepadID { func (i *Input) GamepadIDs() []driver.GamepadID {