35 lines
477 B
Go
35 lines
477 B
Go
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package mouse
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type State interface {
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Handler
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Down(Button) bool
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Up(Button) bool
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}
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type state map[Button]bool
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func NewState() State {
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return state{}
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}
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func (s state) MouseEvent(e Event) {
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if e.Action() == Press {
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s[e.Button()] = true
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}
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if e.Action() == Release {
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s[e.Button()] = false
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}
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}
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func (s state) Down(key Button) bool {
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if state, stored := s[key]; stored {
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return state
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}
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return false
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}
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func (s state) Up(key Button) bool {
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return !s.Down(key)
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}
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