improcket/js/game/control.mjs
2018-03-09 20:07:31 +00:00

114 lines
2.2 KiB
JavaScript

import * as input from '../input.mjs';
import * as events from './events.mjs';
import * as graphics from '../graphics/index.mjs';
import * as inventory from './inventory.mjs';
import * as audio from './audio.mjs';
import {playerShip} from '../world/index.mjs';
import {state} from './index.mjs';
export const mapping = {
thrust: 'KeyW',
left: 'KeyA',
right: 'KeyD',
reduce: 'ShiftLeft',
exitEdit: 'Escape',
inventory: 'KeyE',
cycleRotation: 'KeyC',
toggleTrace: 'KeyT',
toggleMarkers: 'KeyR',
toggleMusic: 'KeyM',
togglePause: 'KeyP',
zoomIn: 'KeyZ',
zoomOut: 'KeyX'
};
let held, pressed;
export function tick() {
held = input.keyCode.held;
pressed = input.keyCode.pressed;
if (state.editing) {
tickEditing();
} else if (state.playing && !state.gameOver && !state.paused) {
tickPlaying();
}
if (!state.editing) {
if (input.mouse.scroll !== 0) {
// Fix for Firefox.
let delta = input.mouse.scroll > 0 ? -50 : 50;
graphics.changeZoom(delta);
}
if (held[mapping.zoomIn]) {
graphics.changeZoom(-10);
}
if (held[mapping.zoomOut]) {
graphics.changeZoom(10);
}
if (pressed[mapping.togglePause] && !state.gameOver) {
events.togglePause();
}
}
if (state.gameOver) {
audio.stop('engine');
}
if (pressed[mapping.toggleMusic]) {
audio.toggle('music');
}
}
function tickPlaying() {
let power = held[mapping.reduce] ? 0.3 : 1;
if (held[mapping.thrust] && playerShip.fuel !== 0) {
playerShip.applyThrust({ forward: power });
let vol = Math.min(0.7, graphics.perspective.zoom / 10);
audio.volume('engine', vol);
} else {
audio.stop('engine');
}
if (pressed[mapping.thrust]) {
if (playerShip.fuel !== 0) {
audio.start('engine');
} else {
audio.stop('engine');
}
}
if (held[mapping.left]) {
playerShip.applyThrust({ turnLeft: power });
}
if (held[mapping.right]) {
playerShip.applyThrust({ turnRight: power });
}
if (pressed[mapping.inventory]) {
state.inventory = !state.inventory;
}
if (pressed[mapping.cycleRotation]) {
events.cycleRotationMode();
}
if (pressed[mapping.toggleTrace]) {
events.toggleTrace();
}
if (pressed[mapping.toggleMarkers]) {
events.toggleMarkers();
}
}
function tickEditing() {
if (pressed[mapping.exitEdit]) {
events.endEditing();
}
}