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view/InputHandler: don't call listeners when no key state has changed

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This commit is contained in:
Matthias Schiffer 2016-01-07 11:39:36 +01:00
parent 584728a129
commit c9d51face0
1 changed files with 8 additions and 4 deletions
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4
src/view/InputHandler.ts
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@ -15,13 +15,17 @@ class InputHandler {
constructor() { constructor() {
window.addEventListener('keydown', (ev) => { window.addEventListener('keydown', (ev) => {
if (!this.keys[ev.keyCode]) {
this.keys[ev.keyCode] = true; this.keys[ev.keyCode] = true;
this.callListeners(); this.callListeners();
}
}); });
window.addEventListener('keyup', (ev) => { window.addEventListener('keyup', (ev) => {
if (this.keys[ev.keyCode]) {
delete this.keys[ev.keyCode]; delete this.keys[ev.keyCode];
this.callListeners(); this.callListeners();
}
}); });
} }