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ui.js
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dew.ui = (function () {
const HOLD_DELAY = .5;
const HELD_SCROLL_SPEED = .1;
const SINGLE_SCROLL_SPEED = .125;
const CONTROLLER_AXIS_THRESHOLD = .5;
const UiAction = {
LeftTrigger: 0,
RightTrigger: 1,
Up: 2,
Down: 3,
Left: 4,
Right: 5,
Start: 6,
Select: 7,
LeftStick: 8,
RightStick: 9,
A: 10,
B: 11,
X: 12,
Y: 13,
LeftBumper: 14,
RightBumper: 15
};
const UiSound = {
Error: 0,
VerticalNavigation: 1,
HorizontalNavigation: 2,
A: 3,
B: 4,
X: 5,
Start: 7,
Back: 8,
LeftBumper: 9,
RightBumper: 10,
LeftTrigger: 11,
RightTrigger: 12
};
var _callbacks = {};
var _stickTicks = { left: 0, right: 0, up: 0, down: 0 }
var _lastHeldUpdate = 0;
var _lastScrollTime = 0;
var _keyStates = {};
var _keyTicks = {};
init();
dew.on('hide', function () {
_keyStates = {};
_keyTicks = {};
_stickTicks = {};
_lastHeldUpdate = 0;
_lastScrollTime = 0;
})
return {
on: function (event, callback) {
(_callbacks[event] || (_callbacks[event] = [])).push(callback);
},
playSound(index) {
var tagIndex = getUiSoundTagIndex(index);
if (tagIndex == -1)
return;
dew.command('Game.PlaySound 0x' + tagIndex.toString(16));
},
Actions: UiAction,
Sounds: UiSound,
}
function getUiSoundTagIndex(index) {
switch (index) {
case UiSound.Error: return 0xafd;
case UiSound.VerticalNavigation: return 0xafe;
case UiSound.HorizontalNavigation: return 0xaff;
case UiSound.A: return 0xb00;
case UiSound.B: return 0xb01;
case UiSound.X: return 0xb02;
case UiSound.Start: return 0xb03;
case UiSound.Back: return 0xb04;
case UiSound.LeftBumper: return 0xb05;
case UiSound.RightBumper: return 0xb06;
case UiSound.LeftTrigger: return 0xb05;
case UiSound.RightTrigger: return 0xb06;
default: return -1;
}
}
function init() {
dew.on('controllerinput', tick);
window.addEventListener('keydown', function (e) { _keyStates[e.keyCode] = true }, false);
window.addEventListener('keyup', function (e) { _keyStates[e.keyCode] = false }, false);
}
function emit(event) {
var eventCallbacks = _callbacks[event];
if (eventCallbacks) {
var args = Array.prototype.splice.call(arguments, 1);
for (var i = 0; i < eventCallbacks.length; i++) {
eventCallbacks[i].apply(null, args);
}
}
}
function tick(e) {
var controller = e.data,
secondsPerTick = e.data.secondsPerTick,
gameTicks = e.data.gameTicks;
emit('tick');
if (_keyStates[40]) _keyTicks[UiAction.Down]++; else _keyTicks[UiAction.Down] = 0;
if (_keyStates[38]) _keyTicks[UiAction.Up]++; else _keyTicks[UiAction.Up] = 0;
if (_keyStates[37]) _keyTicks[UiAction.Left]++; else _keyTicks[UiAction.Left] = 0;
if (_keyStates[39]) _keyTicks[UiAction.Right]++; else _keyTicks[UiAction.Right] = 0;
if (_keyStates[32] || _keyStates[13]) _keyTicks[UiAction.A]++; else _keyTicks[UiAction.A] = 0;
if (_keyStates[27]) _keyTicks[UiAction.B]++; else _keyTicks[UiAction.B] = 0;
if (_keyStates[33]) _keyTicks[UiAction.LeftTrigger]++; else _keyTicks[UiAction.LeftTrigger] = 0;
if (_keyStates[34]) _keyTicks[UiAction.RightTrigger]++; else _keyTicks[UiAction.RightTrigger] = 0;
if (_keyStates[46]) _keyTicks[UiAction.Y]++; else _keyTicks[UiAction.Y] = 0;
if (_keyStates[81]) _keyTicks[UiAction.LeftBumper]++; else _keyTicks[UiAction.LeftBumper] = 0;
if (_keyStates[69]) _keyTicks[UiAction.RightBumper]++; else _keyTicks[UiAction.RightBumper] = 0;
if (_stickTicks.right > 255) _stickTicks.right = 255;
if (_stickTicks.left > 255) _stickTicks.left = 255;
if (_stickTicks.up > 255) _stickTicks.up = 255;
if (_stickTicks.down > 255) _stickTicks.down = 255;
if (e.data.AxisLeftX > CONTROLLER_AXIS_THRESHOLD) _stickTicks.right++; else _stickTicks.right = 0;
if (e.data.AxisLeftX < -CONTROLLER_AXIS_THRESHOLD) _stickTicks.left++; else _stickTicks.left = 0;
if (e.data.AxisLeftY > CONTROLLER_AXIS_THRESHOLD) _stickTicks.up++; else _stickTicks.up = 0;
if (e.data.AxisLeftY < -CONTROLLER_AXIS_THRESHOLD) _stickTicks.down++; else _stickTicks.down = 0;
if (controller.LeftTrigger == 1 || _keyTicks[UiAction.LeftTrigger] == 1) {
emit('scroll', 2, 0, -1);
}
if (controller.RightTrigger == 1 || _keyTicks[UiAction.RightTrigger] == 1) {
emit('scroll', 2, 0, 1);
}
if ((gameTicks - _lastScrollTime) * secondsPerTick > SINGLE_SCROLL_SPEED) {
if ((_stickTicks.up == 1 || controller.Up == 1 || _keyTicks[UiAction.Up] == 1)) {
_lastScrollTime = gameTicks;
emit('scroll', 0, 0, -1);
}
if ((_stickTicks.down == 1 || controller.Down == 1 || _keyTicks[UiAction.Down] == 1)) {
_lastScrollTime = gameTicks;
emit('scroll', 0, 0, 1);
}
if ((_stickTicks.right == 1 || controller.Right == 1 || _keyTicks[UiAction.Right] == 1)) {
_lastScrollTime = gameTicks;
emit('scroll', 0, 1, 1);
}
if ((_stickTicks.left == 1 || controller.Left == 1 || _keyTicks[UiAction.Left] == 1)) {
_lastScrollTime = gameTicks;
emit('scroll', 0, 1, -1);
}
}
if ((gameTicks - _lastHeldUpdate) * secondsPerTick > HELD_SCROLL_SPEED) {
if ((_stickTicks.up > 1 && (_stickTicks.up * secondsPerTick) > HOLD_DELAY) ||
((controller.Up > 1 && (controller.Up * secondsPerTick) > HOLD_DELAY)) ||
(_keyTicks[UiAction.Up] * secondsPerTick) > HOLD_DELAY) {
_lastHeldUpdate = gameTicks;
emit('scroll', 1, 0, -1);
}
if ((_stickTicks.down > 1 && (_stickTicks.down * secondsPerTick) > HOLD_DELAY) ||
((controller.Down > 1 && (controller.Down * secondsPerTick) > HOLD_DELAY)) ||
(_keyTicks[UiAction.Down] * secondsPerTick) > HOLD_DELAY) {
_lastHeldUpdate = gameTicks;
emit('scroll', 1, 0, 1);
}
if ((_stickTicks.right > 1 && (_stickTicks.right * secondsPerTick) > HOLD_DELAY) ||
((controller.Right > 1 && (controller.Right * secondsPerTick) > HOLD_DELAY)) ||
(_keyTicks[UiAction.Right] * secondsPerTick) > HOLD_DELAY) {
_lastHeldUpdate = gameTicks;
emit('scroll', 1, 1, 1);
}
if ((_stickTicks.left > 1 && (_stickTicks.left * secondsPerTick) > HOLD_DELAY) ||
((controller.Left > 1 && (controller.Left * secondsPerTick) > HOLD_DELAY)) ||
(_keyTicks[UiAction.Left] * secondsPerTick) > HOLD_DELAY) {
_lastHeldUpdate = gameTicks;
emit('scroll', 1, 1, -1);
}
}
if (controller.A == 1) emit('action', { inputType: 'controller', action: UiAction.A });
if (controller.B == 1) emit('action', { inputType: 'controller', action: UiAction.B });
if (controller.X == 1) emit('action', { inputType: 'controller', action: UiAction.X });
if (controller.Y == 1) emit('action', { inputType: 'controller', action: UiAction.Y });
if (controller.LeftBumper == 1) emit('action', { inputType: 'controller', action: UiAction.LeftBumper });
if (controller.RightBumper == 1) emit('action', { inputType: 'controller', action: UiAction.RightBumper });
for (var i = 0; i < 16; i++) {
if (_keyTicks[i] == 1) {
emit('action', { inputType: 'keyboard', action: i });
}
}
}
})();