787 lines
21 KiB
JavaScript
787 lines
21 KiB
JavaScript
function obj_unique_name(name, obj) {
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name = name.replaceAll('.', '_');
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if (!(name in obj)) return name;
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var t = 1;
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var n = name + t;
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while (n in obj) {
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t++;
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n = name + t;
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}
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return n;
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}
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var gameobject_impl = {
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get pos() {
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assert(this.master, `Entity ${this.toString()} has no master.`);
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return this.master.world2this(this.worldpos());
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},
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set pos(x) {
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assert(this.master, `Entity ${this.toString()} has no master.`);
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this.set_worldpos(this.master.this2world(x));
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},
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get angle() {
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assert(this.master, `No master set on ${this.toString()}`);
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return this.worldangle() - this.master.worldangle();
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},
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set angle(x) {
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var diff = x - this.angle;
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this.objects.forEach(function(x) {
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x.rotate(diff);
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x.pos = Vector.rotate(x.pos, diff);
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});
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this.sworldangle(x - this.master.worldangle());
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},
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get scale() {
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assert(this.master, `No master set on ${this.toString()}`);
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var pscale = [1, 1, 1];
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return this.gscale().map((x, i) => x / (this.master.gscale()[i] * pscale[i]));
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},
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set scale(x) {
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if (typeof x === 'number')
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x = [x, x];
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var pct = this.scale.map((s, i) => x[i] / s);
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this.grow(pct);
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/* TRANSLATE ALL SUB OBJECTS */
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this.objects.forEach(obj => {
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obj.grow(pct);
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obj.pos = obj.pos.map((x, i) => x * pct[i]);
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});
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},
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};
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var gameobject = {
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get_comp_by_name(name) {
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var comps = [];
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for (var c of Object.values(this.components))
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if (c.comp === name) comps.push(c);
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if (comps.length) return comps;
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return undefined;
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},
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check_dirty() {
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this._ed.urdiff = this.json_obj();
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this._ed.dirty = !Object.empty(this._ed.urdiff);
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return; // TODO: IMPLEMENT
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var lur = ur[this.master.ur];
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if (!lur) return;
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var lur = lur.objects[this.toString()];
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var d = ediff(this._ed.urdiff, lur);
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if (!d || Object.empty(d))
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this._ed.inst = true;
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else
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this._ed.inst = false;
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},
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_ed: {
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selectable: false,
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dirty: false
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},
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namestr() {
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var s = this.toString();
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if (this._ed.dirty)
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if (this._ed.inst) s += "#";
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else s += "*";
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return s;
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},
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urstr() {
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if (this._ed.dirty) return "*" + this.ur;
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return this.ur;
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},
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full_path() {
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return this.path_from(world);
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},
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/* pin this object to the to object */
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pin(to) {
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var p = joint.pin(this,to);
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},
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slide(to, a, b, min, max) {
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a ??= [0, 0];
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b ??= [0, 0];
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min ??= 0;
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max ??= 50;
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var p = joint.slide(this, to, a, b, min, max);
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p.max_force = 500;
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p.break();
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},
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pivot(to, piv) {
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piv ??= this.worldpos();
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var p = joint.pivot(this, to, piv);
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},
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/* groove is on to, from local points a and b, anchored to this at local anchor */
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groove(to, a, b, anchor) {
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anchor ??= [0, 0];
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var p = joint.groove(to, this, a, b, anchor);
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},
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damped_spring(to, length, stiffness, damping) {
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length ??= Vector.length(this.worldpos(), to.worldpos());
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stiffness ??= 1;
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damping ??= 1;
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var dc = 2 * Math.sqrt(stiffness * this.mass);
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var p = joint.damped_spring(this, to, [0, 0], [0, 0], stiffness, damping * dc);
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},
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damped_rotary_spring(to, angle, stiffness, damping) {
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angle ??= 0;
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stiffness ??= 1;
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damping ??= 1;
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/* calculate actual damping value from the damping ratio */
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/* damping = 1 is critical */
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var dc = 2 * Math.sqrt(stiffness * this.get_moi()); /* critical damping number */
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/* zeta = actual/critical */
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var p = joint.damped_rotary(this, to, angle, stiffness, damping * dc);
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},
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rotary_limit(to, min, max) {
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var p = joint.rotary(this, to, Math.turn2rad(min), Math.turn2rad(max));
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},
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ratchet(to, ratch) {
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var phase = this.angle - to.angle;
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var p = joint.ratchet(this, to, phase, Math.turn2rad(ratch));
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},
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gear(to, ratio) {
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phase ??= 1;
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ratio ??= 1;
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var phase = this.angle - to.angle;
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var p = joint.gear(this, to, phase, ratio);
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},
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motor(to, rate) {
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var p = joint.motor(this, to, rate);
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},
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path_from(o) {
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var p = this.toString();
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var c = this.master;
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while (c && c !== o && c !== world) {
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p = c.toString() + "." + p;
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c = c.master;
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}
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if (c === world) p = "world." + p;
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return p;
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},
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clear() {
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for (var k in this.objects) {
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this.objects[k].kill();
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};
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this.objects = {};
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},
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delay(fn, seconds) {
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var timescale = this.timescale;
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var timers = this.timers;
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var thisfn = fn.bind(this);
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var rm_register;
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var ud = function(dt) {
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seconds -= dt*timescale;
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if (seconds <= 0) {
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thisfn();
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rm_register();
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rm_register = undefined;
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thisfn = undefined;
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}
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}
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rm_register = Register.update.register(ud);
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return rm_register;
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},
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tween(prop, values, def) {
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var t = Tween.make(this, prop, values, def);
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t.play();
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var k = function() { t.pause(); }
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this.timers.push(k);
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return k;
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},
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cry(file) {
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return;
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this.crying = audio.play(file, audio.bus.sfx);
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var killfn = () => { this.crying = undefined;
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console.warn("killed"); }
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this.crying.hook = killfn;
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return killfn;
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},
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gscale() { return this.scale; },
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sgscale(x) {
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if (typeof x === 'number')
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x = [x, x];
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physics.sgscale(this, x)
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},
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phys_material() {
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var mat = {};
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mat.elasticity = this.elasticity;
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mat.friction = this.friction;
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return mat;
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},
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worldpos() { return this.pos; },
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set_worldpos(x) {
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var poses = this.objects.map(x => x.pos);
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this.pos = x;
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this.objects.forEach((o, i) => o.set_worldpos(this.this2world(poses[i])));
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},
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screenpos() { return window.world2screen(this.worldpos()); },
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worldangle() { return Math.rad2turn(this.angle); },
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sworldangle(x) { this.angle = Math.turn2rad(x); },
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get_ur() { return Object.access(ur, this.ur); },
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/* spawn an entity
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text can be:
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the file path of a script
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an ur object
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nothing
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*/
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spawn(text) {
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var ent = os.make_gameobject();
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if (typeof text === 'object')
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text = text.name;
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if (typeof text === 'undefined')
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ent.ur = "empty";
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else if (typeof text !== 'string') {
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console.error(`Must pass in an ur type or a string to make an entity.`);
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return;
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} else {
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if (Object.access(ur, text))
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ent.ur = text;
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else if (io.exists(text))
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ent.ur = "script";
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else {
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console.warn(`Cannot make an entity from '${text}'. Not a valid ur.`);
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return;
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}
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}
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console.info(`Creating entity of type ${ent.ur}`);
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ent.warp_layer = [true];
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ent.phys = 2;
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ent.components = {};
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ent.objects = {};
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ent.timers = [];
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ent.reparent(this);
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ent._ed = {
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selectable: true,
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dirty: false,
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inst: false,
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urdiff: {},
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};
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ent.setref(ent);
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Object.hide(ent, 'ur', 'components', 'objects', '_ed', 'timers', 'master');
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if (ent.ur === 'empty') {
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if (!ur.empty.proto) ur.empty.proto = json.decode(json.encode(ent));
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return ent;
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}
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if (ent.ur === 'script')
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eval_env(io.slurp(text), ent, ent.ur);
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else
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apply_ur(ent.ur, ent);
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for (var [prop, p] of Object.entries(ent)) {
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if (!p) continue;
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if (typeof p !== 'object') continue;
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if (component.isComponent(p)) continue;
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if (!p.comp) continue;
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ent[prop] = component[p.comp].make(ent);
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Object.merge(ent[prop], p);
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ent.components[prop] = ent[prop];
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};
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check_registers(ent);
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ent.components.forEach(function(x) {
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if (typeof x.collide === 'function')
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physics.collide_shape(x.collide.bind(x), ent, x.shape);
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});
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if (typeof ent.load === 'function') ent.load();
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if (sim.playing())
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if (typeof ent.start === 'function') ent.start();
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var mur = ent.get_ur();
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if (mur && !mur.proto)
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mur.proto = json.decode(json.encode(ent));
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ent.sync();
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console.info(`entity is type ${ent.phys}`);
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if (!Object.empty(ent.objects)) {
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var o = ent.objects;
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delete ent.objects;
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for (var i in o) {
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say(`MAKING ${i}`);
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var n = ent.spawn(ur[o[i].ur]);
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ent.rename_obj(n.toString(), i);
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delete o[i].ur;
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Object.assign(n, o[i]);
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}
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}
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console.info(`Made object with mass ${ent.mass} and moi ${ent.moi}`);
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return ent;
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},
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/* Reparent 'this' to be 'parent's child */
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reparent(parent) {
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assert(parent, `Tried to reparent ${this.toString()} to nothing.`);
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if (this.master === parent) {
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console.warn("not reparenting ...");
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console.warn(`${this.master} is the same as ${parent}`);
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return;
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}
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this.master?.remove_obj(this);
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this.master = parent;
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function unique_name(list, name) {
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name ??= "new_object";
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var str = name.replaceAll('.', '_');
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var n = 1;
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var t = str;
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while (list.indexOf(t) !== -1) {
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t = str + n;
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n++;
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}
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return t;
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};
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var name = unique_name(Object.keys(parent.objects), this.ur);
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parent.objects[name] = this;
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parent[name] = this;
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this.toString = function() { return name; };
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},
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remove_obj(obj) {
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if (this[obj.toString()] === this.objects[obj.toString()])
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delete this[obj.toString()];
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delete this.objects[obj.toString()];
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delete this[obj.toString()];
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},
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components: {},
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objects: {},
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master: undefined,
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this2screen(pos) { return window.world2screen(this.this2world(pos)); },
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screen2this(pos) { return this.world2this(window.screen2world(pos)); },
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in_air() { return this.in_air(); },
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hide() { this.components.forEach(x => x.hide?.());
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this.objects.forEach(x => x.hide?.()); },
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show() { this.components.forEach(function(x) { x.show?.(); });
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this.objects.forEach(function(x) { x.show?.(); }); },
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width() {
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var bb = this.boundingbox();
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return bb.r - bb.l;
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},
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height() {
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var bb = this.boundingbox();
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return bb.t - bb.b;
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},
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/* Moving, rotating, scaling functions, world relative */
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move(vec) { this.set_worldpos(this.worldpos().add(vec)); },
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rotate(x) { this.sworldangle(this.worldangle() + x); },
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grow(vec) { this.sgscale(this.gscale().map((x, i) => x * vec[i])); },
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/* Make a unique object the same as its prototype */
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revert() {
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var jobj = this.json_obj();
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var lobj = this.master.__proto__.objects[this.toString()];
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delete jobj.objects;
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Object.keys(jobj).forEach(function(x) {
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if (lobj && x in lobj)
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this[x] = lobj[x];
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else
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this[x] = this.__proto__[x];
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}, this);
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this.sync();
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},
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toString() { return "new_object"; },
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flipx() { return this.scale.x < 0; },
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flipy() { return this.scale.y < 0; },
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mirror(plane) { this.scale = Vector.reflect(this.scale, plane); },
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disable() { this.components.forEach(function(x) { x.disable(); }); },
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enable() { this.components.forEach(function(x) { x.enable(); }); },
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/* Bounding box of the object in world dimensions */
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boundingbox() {
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var boxes = [];
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boxes.push({
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t: 0,
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r: 0,
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b: 0,
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l: 0
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});
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for (var key in this.components) {
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if ('boundingbox' in this.components[key])
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boxes.push(this.components[key].boundingbox());
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}
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for (var key in this.objects)
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boxes.push(this.objects[key].boundingbox());
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var bb = boxes.shift();
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boxes.forEach(function(x) { bb = bbox.expand(bb, x); });
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bb = bbox.move(bb, this.pos);
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return bb ? bb : bbox.fromcwh([0, 0], [0, 0]);
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},
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/* The unique components of this object. Its diff. */
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json_obj() {
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var u = this.get_ur();
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if (!u) return {};
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var proto = u.proto;
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var thiso = json.decode(json.encode(this)); // TODO: SLOW. Used to ignore properties in toJSON of components.
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var d = ediff(thiso, proto);
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d ??= {};
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var objects = {};
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proto.objects ??= {};
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var curobjs = {};
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for (var o in this.objects)
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curobjs[o] = this.objects[o].instance_obj();
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|
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var odiff = ediff(curobjs, proto.objects);
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if (odiff)
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d.objects = curobjs;
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|
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delete d.pos;
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delete d.angle;
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delete d.scale;
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delete d.velocity;
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delete d.angularvelocity;
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return d;
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},
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|
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/* The object needed to store an object as an instance of a master */
|
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instance_obj() {
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var t = this.transform();
|
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t.ur = this.ur;
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return t;
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},
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|
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proto() {
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var u = this.get_ur();
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if (!u) return {};
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return u.proto;
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},
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transform() {
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var t = {};
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t.pos = this.pos;
|
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if (t.pos.every(x => x === 0)) delete t.pos;
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t.angle = Math.places(this.angle, 4);
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if (t.angle === 0) delete t.angle;
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t.scale = this.scale;
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t.scale = t.scale.map((x, i) => x / this.proto().scale[i]);
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t.scale = t.scale.map(x => Math.places(x, 3));
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if (t.scale.every(x => x === 1)) delete t.scale;
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return t;
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},
|
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|
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/* Velocity and angular velocity of the object */
|
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phys_obj() {
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var phys = {};
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phys.velocity = this.velocity;
|
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phys.angularvelocity = this.angularvelocity;
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return phys;
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},
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|
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dup(diff) {
|
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var n = this.master.spawn(this.__proto__);
|
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Object.totalmerge(n, this.instance_obj());
|
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return n;
|
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},
|
|
|
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kill() {
|
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if (this.__kill) return;
|
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this.__kill = true;
|
|
console.info(`Killing entity of type ${this.ur}`);
|
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|
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this.timers.forEach(t => t());
|
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this.timers = [];
|
|
Event.rm_obj(this);
|
|
Player.do_uncontrol(this);
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physics.collide_rm(this);
|
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|
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if (this.master) {
|
|
this.master.remove_obj(this);
|
|
this.master = undefined;
|
|
}
|
|
|
|
if (this.__proto__.instances)
|
|
delete this.__proto__.instances[this.toString()];
|
|
|
|
for (var key in this.components) {
|
|
this.components[key].kill?.();
|
|
this.components[key].gameobject = undefined;
|
|
delete this.components[key];
|
|
delete this[key];
|
|
}
|
|
|
|
this.clear();
|
|
this.objects = undefined;
|
|
|
|
if (typeof this.stop === 'function') this.stop();
|
|
if (typeof this.die === 'function') this.die();
|
|
},
|
|
|
|
up() { return [0, 1].rotate(this.angle); },
|
|
down() { return [0, -1].rotate(this.angle); },
|
|
right() { return [1, 0].rotate(this.angle); },
|
|
left() { return [-1, 0].rotate(this.angle); },
|
|
|
|
make_objs(objs) {
|
|
for (var prop in objs) {
|
|
say(`spawning ${json.encode(objs[prop])}`);
|
|
var newobj = this.spawn(objs[prop]);
|
|
}
|
|
},
|
|
|
|
rename_obj(name, newname) {
|
|
if (!this.objects[name]) {
|
|
console.warn(`No object with name ${name}. Could not rename to ${newname}.`);
|
|
return;
|
|
}
|
|
if (name === newname) {
|
|
Object.hide(this, name);
|
|
return;
|
|
}
|
|
if (this.objects[newname])
|
|
return;
|
|
|
|
this.objects[newname] = this.objects[name];
|
|
this[newname] = this[name];
|
|
this[newname].toString = function() { return newname; };
|
|
Object.hide(this, newname);
|
|
delete this.objects[name];
|
|
delete this[name];
|
|
return this.objects[newname];
|
|
},
|
|
|
|
add_component(comp, data, name) {
|
|
data ??= undefined;
|
|
if (typeof comp.make !== 'function') return;
|
|
name ??= comp.toString();
|
|
name = obj_unique_name(name, this);
|
|
this[name] = comp.make(this);
|
|
this[name].comp = comp.toString();
|
|
this.components[name] = this[name];
|
|
if (data)
|
|
Object.assign(this[name], data);
|
|
return this[name];
|
|
},
|
|
|
|
obj_descend(fn) {
|
|
fn(this);
|
|
for (var o in this.objects)
|
|
this.objects[o].obj_descend(fn);
|
|
},
|
|
}
|
|
|
|
var gop = os.make_gameobject().__proto__;
|
|
Object.mixin(gop, gameobject);
|
|
var gsync = gop.sync;
|
|
gop.sync = function() {
|
|
gsync.call(this);
|
|
this.components.forEach(function(x) { x.sync?.(); });
|
|
this.objects.forEach(function(x) { x.sync(); });
|
|
}
|
|
|
|
|
|
gameobject.spawn.doc = `Spawn an entity of type 'ur' on this entity. Returns the spawned entity.`;
|
|
|
|
gameobject.doc = {
|
|
doc: "All objects in the game created through spawning have these attributes.",
|
|
pos: "Position of the object, relative to its master.",
|
|
angle: "Rotation of this object, relative to its master.",
|
|
velocity: "Velocity of the object, relative to world.",
|
|
angularvelocity: "Angular velocity of the object, relative to the world.",
|
|
scale: "Scale of the object, relative to its master.",
|
|
flipx: "Check if the object is flipped on its x axis.",
|
|
flipy: "Check if the object is flipped on its y axis.",
|
|
elasticity: `When two objects collide, their elasticities are multiplied together. Their velocities are then multiplied by this value to find √their resultant velocities.`,
|
|
friction: `When one object touches another, friction slows them down.`,
|
|
mass: `The higher the mass of the object, the less forces will affect it.`,
|
|
phys: `Set to 0, 1, or 2, representing dynamic, kinematic, and static.`,
|
|
worldpos: `Function returns the world position of the object.`,
|
|
set_worldpos: `Function to set the position of the object in world coordinates.`,
|
|
worldangle: `Function to get the angle of the entity in the world.`,
|
|
rotate: `Function to rotate this object by x degrees.`,
|
|
move: 'Move an object by x,y,z. If the first parameter is an array, uses up to the first three array values.',
|
|
pulse: `Apply an impulse to this body in world coordinates. Impulse is a short force.`,
|
|
shove: `Apply a force to this body in world coordinates. Should be used over many frames.`,
|
|
shove_at: 'Apply a force to this body, at a position relative to itself.',
|
|
max_velocity: 'The max linear velocity this object can travel.',
|
|
max_angularvelocity: 'The max angular velocity this object can rotate.',
|
|
in_air: `Return true if the object is in the air.`,
|
|
on_ground: `Return true if the object is on the ground.`,
|
|
spawn: `Create an instance of a supplied ur-type on this object. Optionally provide a data object to modify the created entity.`,
|
|
hide: `Make this object invisible.`,
|
|
show: `Make this object visible.`,
|
|
width: `The total width of the object and all its components.`,
|
|
height: `The total height of the object.`,
|
|
move: `Move this object the given amount.`,
|
|
boundingbox: `The boundingbox of the object.`,
|
|
dup: `Make an exact copy of this object.`,
|
|
transform: `Return an object representing the transform state of this object.`,
|
|
kill: `Remove this object from the world.`,
|
|
master: "The entity this entity belongs to.",
|
|
delay: 'Run the given function after the given number of seconds has elapsed.',
|
|
cry: 'Make a sound. Can only make one at a time.',
|
|
add_component: 'Add a component to the object by name.',
|
|
pin: 'Pin joint to another object. Acts as if a rigid rod is between the two objects.',
|
|
slide: 'Slide joint, similar to a pin but with min and max allowed distances.',
|
|
pivot: 'Pivot joint to an object, with the pivot given in world coordinates.',
|
|
groove: 'Groove joint. The groove is on to, from to local coordinates a and b, with this object anchored at anchor.',
|
|
damped_spring: 'Damped spring to another object. Length is the distance it wants to be, stiffness is the spring constant, and damping is the damping ratio. 1 is critical, < 1 is underdamped, > 1 is overdamped.',
|
|
damped_rotary_spring: 'Similar to damped spring but for rotation. Rest angle is the attempted angle.',
|
|
rotary_limit: 'Limit the angle relative to the to body between min and max.',
|
|
ratchet: 'Like a socket wrench, relative to to. ratch is the distance between clicks.',
|
|
gear: 'Keeps the angular velocity ratio of this body and to constant. Ratio is the gear ratio.',
|
|
motor: 'Keeps the relative angular velocity of this body to to at a constant rate. The most simple idea is for one of the bodies to be static, to the other is kept at rate.',
|
|
layer: 'Bitmask for collision layers.',
|
|
draw_layer: 'Layer for drawing. Higher numbers draw above lower ones.',
|
|
warp_layer: 'Bitmask for selecting what warps should affect this entity.',
|
|
};
|
|
|
|
global.ur = {};
|
|
|
|
if (io.exists(".prosperon/ur.json"))
|
|
ur = json.decode(io.slurp(".prosperon/ur.json"));
|
|
else {
|
|
ur = {};
|
|
ur._list = [];
|
|
}
|
|
|
|
/* UR OBJECT
|
|
ur {
|
|
name: fully qualified name of ur
|
|
text: file path to the script
|
|
data: file path to data
|
|
proto: resultant object of a freshly made entity
|
|
}
|
|
*/
|
|
|
|
/* Apply an ur u to an entity e */
|
|
/* u is given as */
|
|
function apply_ur(u, e) {
|
|
if (typeof u !== 'string') {
|
|
console.warn("Must give u as a string.");
|
|
return;
|
|
}
|
|
|
|
var urs = u.split('.');
|
|
var config = {};
|
|
var topur = ur;
|
|
for (var i = 0; i < urs.length; i++) {
|
|
topur = topur[urs[i]];
|
|
if (!topur) {
|
|
console.warn(`Ur given by ${u} does not exist. Stopped at ${urs[i]}.`);
|
|
return;
|
|
}
|
|
|
|
if (topur.text) {
|
|
var script = Resources.replstrs(topur.text);
|
|
eval_env(script, e, topur.text);
|
|
}
|
|
|
|
if (topur.data) {
|
|
var jss = Resources.replstrs(topur.data);
|
|
Object.merge(config, json.decode(jss));
|
|
}
|
|
}
|
|
|
|
Object.merge(e, config);
|
|
}
|
|
|
|
function file2fqn(file) {
|
|
var fqn = file.strip_ext();
|
|
if (fqn.folder_same_name())
|
|
fqn = fqn.up_path();
|
|
|
|
fqn = fqn.replace('/', '.');
|
|
var topur;
|
|
if (topur = Object.access(ur, fqn)) return topur;
|
|
|
|
var fqnlast = fqn.split('.').last();
|
|
|
|
if (topur = Object.access(ur, fqn.tolast('.'))) {
|
|
topur[fqnlast] = {
|
|
name: fqn
|
|
};
|
|
ur._list.push(fqn);
|
|
return Object.access(ur, fqn);
|
|
}
|
|
|
|
fqn = fqnlast;
|
|
|
|
ur[fqn] = {
|
|
name: fqn
|
|
};
|
|
ur._list.push(fqn);
|
|
return ur[fqn];
|
|
}
|
|
|
|
game.loadurs = function() {
|
|
ur = {};
|
|
ur._list = [];
|
|
/* FIND ALL URS IN A PROJECT */
|
|
for (var file of io.glob("**.jso")) {
|
|
if (file[0] === '.' || file[0] === '_') continue;
|
|
var topur = file2fqn(file);
|
|
topur.text = file;
|
|
}
|
|
|
|
for (var file of io.glob("**.json")) {
|
|
if (file[0] === '.' || file[0] === '_') continue;
|
|
var topur = file2fqn(file);
|
|
topur.data = file;
|
|
}
|
|
|
|
ur.empty = {
|
|
name: "empty"
|
|
};
|
|
};
|