rail gun balance (uses energy now)
This commit is contained in:
landgreen
438
js/bullets.js
438
js/bullets.js
@@ -74,7 +74,7 @@ const b = {
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name: "depleted uranium rounds", //0
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description: `your <strong>bullets</strong> are +13% larger<br>increased mass and physical <strong class='color-d'>damage</strong>`,
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count: 0,
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maxCount: 33,
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maxCount: 9,
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effect() {
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b.modBulletSize += 0.13
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}
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@@ -119,7 +119,7 @@ const b = {
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{
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name: "high explosives", //15
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description: "the radius of <strong class='color-e'>explosions</strong> are +20% <strong>larger</strong><br>immune to <strong>harm</strong> from <strong class='color-e'>explosions</strong>",
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maxCount: 1,
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maxCount: 3,
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count: 0,
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effect: () => {
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b.modExplosionRadius += 0.2;
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@@ -129,7 +129,7 @@ const b = {
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{
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name: "auto-loading heuristics", //5
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description: "your <strong>delay</strong> after firing is +12% <strong>shorter</strong>",
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maxCount: 9,
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maxCount: 5,
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count: 0,
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effect() {
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b.modFireRate *= 0.88
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@@ -147,7 +147,7 @@ const b = {
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{
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name: "Lorentzian topology", //7
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description: "your <strong>bullets</strong> last +33% <strong>longer</strong>",
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maxCount: 9,
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maxCount: 3,
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count: 0,
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effect() {
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b.isModBulletsLastLonger += 0.33
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@@ -258,7 +258,7 @@ const b = {
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{
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name: "energy conservation", //18
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description: "gain <strong class='color-f'>energy</strong> proportional to <strong class='color-d'>damage</strong> done",
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maxCount: 9,
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maxCount: 3,
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count: 0,
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effect() {
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b.modEnergySiphon += 0.15;
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@@ -268,7 +268,7 @@ const b = {
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{
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name: "entropy exchange", //19
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description: "<strong class='color-h'>heal</strong> proportional to <strong class='color-d'>damage</strong> done",
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maxCount: 9,
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maxCount: 3,
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count: 0,
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effect() {
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b.modHealthDrain += 0.015;
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@@ -890,7 +890,7 @@ const b = {
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}
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},
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});
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const SPEED = 8 + 3 * Math.random();
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const SPEED = 4 + 8 * Math.random();
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const ANGLE = 2 * Math.PI * Math.random()
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Matter.Body.setVelocity(bullet[bIndex], {
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x: SPEED * Math.cos(ANGLE),
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@@ -1202,13 +1202,13 @@ const b = {
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for (let i = 0; i < b.guns.length; i++) {
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b.inventory[i] = i;
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b.guns[i].have = true;
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b.guns[i].ammo = b.guns[i].ammoPack * ammoPacks;
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b.guns[i].ammo = Math.floor(b.guns[i].ammoPack * ammoPacks);
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}
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} else {
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if (!b.guns[gun].have) b.inventory.push(gun);
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if (b.activeGun === null) b.activeGun = gun //if no active gun switch to new gun
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b.guns[gun].have = true;
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b.guns[gun].ammo = b.guns[gun].ammoPack * ammoPacks;
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b.guns[gun].ammo = Math.floor(b.guns[gun].ammoPack * ammoPacks);
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}
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game.makeGunHUD();
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},
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@@ -1397,208 +1397,7 @@ const b = {
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}
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},
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{
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name: "rail gun", //5
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description: "electro-magnetically launch a dense rod<br><strong>hold</strong> left mouse to charge, <strong>release</strong> to fire", //and <strong>repel</strong> enemies
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ammo: 0,
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ammoPack: 1,
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have: false,
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isStarterGun: false,
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fire() {
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const me = bullet.length;
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bullet[me] = Bodies.rectangle(0, 0, 0.012 * b.modBulletSize, 0.0025 * b.modBulletSize, {
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density: 0.01, //0.001 is normal
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//frictionAir: 0.01, //restitution: 0,
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// angle: 0,
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// friction: 0.5,
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frictionAir: 0,
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dmg: 0, //damage done in addition to the damage from momentum
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classType: "bullet",
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collisionFilter: {
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category: 0,
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mask: cat.map | cat.body | cat.mob | cat.mobBullet | cat.mobShield
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},
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minDmgSpeed: 5,
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onDmg() {}, //this.endCycle = 0 //triggers despawn
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onEnd() {}
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});
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mech.fireCDcycle = Infinity; // cool down
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World.add(engine.world, bullet[me]); //add bullet to world
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bullet[me].endCycle = Infinity
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bullet[me].isCharging = true;
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bullet[me].charge = 0;
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bullet[me].do = function () {
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if (this.isCharging) {
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if ((!game.mouseDown && this.charge > 0.6)) { //fire on mouse release
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this.isCharging = false
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mech.fireCDcycle = mech.cycle + 2; // set fire cool down
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Matter.Body.scale(this, 8000, 8000) // show the bullet by scaling it up (don't judge me... I know this is a bad way to do it)
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this.endCycle = game.cycle + 140
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this.collisionFilter.category = cat.bullet
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Matter.Body.setPosition(this, {
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x: mech.pos.x,
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y: mech.pos.y
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})
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Matter.Body.setAngle(this, mech.angle)
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const speed = 90
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Matter.Body.setVelocity(this, {
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x: mech.Vx / 2 + speed * this.charge * Math.cos(mech.angle),
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y: mech.Vy / 2 + speed * this.charge * Math.sin(mech.angle)
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});
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//knock back
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const KNOCK = ((mech.crouch) ? 0.1 : 0.5) * b.modBulletSize * b.modBulletSize * this.charge * this.charge
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player.force.x -= KNOCK * Math.cos(mech.angle)
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player.force.y -= KNOCK * Math.sin(mech.angle) * 0.35 //reduce knock back in vertical direction to stop super jumps
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//push away blocks when firing
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let range = 700 * this.charge
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for (let i = 0, len = body.length; i < len; ++i) {
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const SUB = Vector.sub(body[i].position, mech.pos)
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const DISTANCE = Vector.magnitude(SUB)
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if (DISTANCE < range) {
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const DEPTH = Math.min(range - DISTANCE, 300)
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const FORCE = Vector.mult(Vector.normalise(SUB), 0.003 * Math.sqrt(DEPTH) * body[i].mass)
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body[i].force.x += FORCE.x;
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body[i].force.y += FORCE.y - body[i].mass * (game.g * 1.5); //kick up a bit to give them some arc
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}
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}
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for (let i = 0, len = mob.length; i < len; ++i) {
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const SUB = Vector.sub(mob[i].position, mech.pos)
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const DISTANCE = Vector.magnitude(SUB)
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if (DISTANCE < range) {
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const DEPTH = Math.min(range - DISTANCE, 300)
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const FORCE = Vector.mult(Vector.normalise(SUB), 0.003 * Math.sqrt(DEPTH) * mob[i].mass)
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mob[i].force.x += 1.5 * FORCE.x;
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mob[i].force.y += 1.5 * FORCE.y;
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}
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}
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} else { // charging on mouse down
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mech.fireCDcycle = Infinity //can't fire until mouse is released
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if (mech.crouch) {
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this.charge = this.charge * 0.965 + 0.035 // this.charge converges to 1
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} else {
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this.charge = this.charge * 0.985 + 0.015 // this.charge converges to 1
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}
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//draw laser targeting
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let best;
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let range = 3000
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const dir = mech.angle
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const path = [{
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x: mech.pos.x + 20 * Math.cos(dir),
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y: mech.pos.y + 20 * Math.sin(dir)
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},
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{
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x: mech.pos.x + range * Math.cos(dir),
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y: mech.pos.y + range * Math.sin(dir)
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}
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];
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const vertexCollision = function (v1, v1End, domain) {
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for (let i = 0; i < domain.length; ++i) {
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let vertices = domain[i].vertices;
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const len = vertices.length - 1;
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for (let j = 0; j < len; j++) {
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results = game.checkLineIntersection(v1, v1End, vertices[j], vertices[j + 1]);
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if (results.onLine1 && results.onLine2) {
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const dx = v1.x - results.x;
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const dy = v1.y - results.y;
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const dist2 = dx * dx + dy * dy;
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if (dist2 < best.dist2) {
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best = {
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x: results.x,
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y: results.y,
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dist2: dist2,
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who: domain[i],
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v1: vertices[j],
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v2: vertices[j + 1]
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};
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}
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}
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}
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results = game.checkLineIntersection(v1, v1End, vertices[0], vertices[len]);
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if (results.onLine1 && results.onLine2) {
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const dx = v1.x - results.x;
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const dy = v1.y - results.y;
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const dist2 = dx * dx + dy * dy;
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if (dist2 < best.dist2) {
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best = {
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x: results.x,
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y: results.y,
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dist2: dist2,
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who: domain[i],
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v1: vertices[0],
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v2: vertices[len]
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};
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}
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}
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}
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};
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//check for collisions
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best = {
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x: null,
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y: null,
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dist2: Infinity,
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who: null,
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v1: null,
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v2: null
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};
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vertexCollision(path[0], path[1], mob);
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vertexCollision(path[0], path[1], map);
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vertexCollision(path[0], path[1], body);
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if (best.dist2 != Infinity) { //if hitting something
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path[path.length - 1] = {
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x: best.x,
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y: best.y
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};
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}
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//draw laser beam
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ctx.beginPath();
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ctx.moveTo(path[0].x, path[0].y);
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ctx.lineTo(path[1].x, path[1].y);
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ctx.strokeStyle = `rgba(100,0,180,0.7)`;
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ctx.lineWidth = this.charge * 1
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ctx.setLineDash([10, 20]);
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ctx.stroke();
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ctx.setLineDash([0, 0]);
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//draw magnetic field
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const X = mech.pos.x
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const Y = mech.pos.y
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const unitVector = Vector.normalise(Vector.sub(game.mouseInGame, mech.pos))
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const unitVectorPerp = Vector.perp(unitVector)
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function magField(mag, arc) {
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ctx.moveTo(X, Y);
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ctx.bezierCurveTo(
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X + unitVector.x * mag, Y + unitVector.y * mag,
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X + unitVector.x * mag + unitVectorPerp.x * arc, Y + unitVector.y * mag + unitVectorPerp.y * arc,
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X + unitVectorPerp.x * arc, Y + unitVectorPerp.y * arc)
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ctx.bezierCurveTo(
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X - unitVector.x * mag + unitVectorPerp.x * arc, Y - unitVector.y * mag + unitVectorPerp.y * arc,
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X - unitVector.x * mag, Y - unitVector.y * mag,
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X, Y)
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}
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ctx.fillStyle = `rgba(50,0,100,0.05)`;
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for (let i = 3; i < 7; i++) {
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const MAG = 8 * i * i * this.charge * (0.93 + 0.07 * Math.random())
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const ARC = 6 * i * i * this.charge * (0.93 + 0.07 * Math.random())
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ctx.beginPath();
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magField(MAG, ARC)
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magField(MAG, -ARC)
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ctx.fill();
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}
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}
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} else { //normal bullet behavior
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this.force.y += this.mass * 0.00015 / this.charge; // low gravity that scales with charge
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}
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}
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}
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},
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{
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name: "missiles", //6
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name: "missiles", //5
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description: "fire missiles that accelerate towards enemies<br><strong class='color-e'>explodes</strong> when near target",
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ammo: 0,
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ammoPack: 3,
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@@ -1694,7 +1493,7 @@ const b = {
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}
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}
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}, {
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name: "flak", //7
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name: "flak", //6
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description: "fire a cluster of short range projectiles<br><strong class='color-e'>explodes</strong> on contact or after half a second",
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ammo: 0,
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ammoPack: 6,
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@@ -1735,7 +1534,7 @@ const b = {
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}
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}
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}, {
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name: "grenades", //8
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name: "grenades", //7
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description: "lob a single bouncy projectile<br><strong class='color-e'>explodes</strong> on contact or after one second",
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ammo: 0,
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ammoPack: 6,
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@@ -1762,7 +1561,7 @@ const b = {
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};
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}
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}, {
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name: "vacuum bomb", //9
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name: "vacuum bomb", //8
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description: "fire a bomb that <strong>sucks</strong> before <strong class='color-e'>exploding</strong><br>click left mouse again to <strong>detonate</strong>",
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ammo: 0,
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ammoPack: 2,
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@@ -1866,7 +1665,7 @@ const b = {
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}
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}
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}, {
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name: "mine", //10
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name: "mine", //9
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description: "toss a <strong>proximity</strong> mine that <strong>sticks</strong> to walls<br>fires <strong>nails</strong> at enemies within range",
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ammo: 0,
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ammoPack: 3,
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@@ -1885,7 +1684,7 @@ const b = {
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}
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},
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{
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name: "spores", //11
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name: "spores", //10
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description: "fire orbs that discharge <strong style='letter-spacing: 2px;'>spores</strong><br><strong style='letter-spacing: 2px;'>spores</strong> seek out enemies",
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ammo: 0,
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ammoPack: 4,
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@@ -1930,7 +1729,7 @@ const b = {
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}
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},
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{
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name: "drones", //12
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name: "drones", //11
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description: "deploy drones that <strong>crash</strong> into enemies<br>collisions reduce drone <strong>cycles</strong> by 1 second",
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ammo: 0,
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ammoPack: 9,
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@@ -1942,7 +1741,7 @@ const b = {
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}
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},
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{
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name: "foam", //13
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name: "foam", //12
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description: "spray bubbly foam that <strong>sticks</strong> to enemies<br>does <strong class='color-d'>damage</strong> over time and <strong>slows</strong> movement",
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ammo: 0,
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ammoPack: 35,
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@@ -2035,6 +1834,209 @@ const b = {
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});
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}
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},
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{
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name: "rail gun", //13
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description: "electro-magnetically launch a <strong>dense</strong> rod<br><strong>holding</strong> left mouse uses <strong class='color-f'>energy</strong> to charge ",
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ammo: 0,
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ammoPack: 2,
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have: false,
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isStarterGun: false,
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fire() {
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const me = bullet.length;
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bullet[me] = Bodies.rectangle(0, 0, 0.015 * b.modBulletSize, 0.0015 * b.modBulletSize, {
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density: 0.01, //0.001 is normal
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//frictionAir: 0.01, //restitution: 0,
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// angle: 0,
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// friction: 0.5,
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frictionAir: 0,
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dmg: 0, //damage done in addition to the damage from momentum
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classType: "bullet",
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collisionFilter: {
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category: 0,
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mask: cat.map | cat.body | cat.mob | cat.mobBullet | cat.mobShield
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},
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minDmgSpeed: 5,
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onDmg() {}, //this.endCycle = 0 //triggers despawn
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onEnd() {}
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});
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mech.fireCDcycle = Infinity; // cool down
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World.add(engine.world, bullet[me]); //add bullet to world
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bullet[me].endCycle = Infinity
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bullet[me].charge = 0;
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bullet[me].do = function () {
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const FIELD_DRAIN = 0.002 //laser drains energy as well as bullets
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if ((!game.mouseDown && this.charge > 0.6)) { //fire on mouse release
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//normal bullet behavior occurs after firing, overwrite this function
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this.do = function () {
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this.force.y += this.mass * 0.00015 / this.charge; // low gravity that scales with charge
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}
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mech.fireCDcycle = mech.cycle + 2; // set fire cool down
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Matter.Body.scale(this, 8000, 8000) // show the bullet by scaling it up (don't judge me... I know this is a bad way to do it)
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this.endCycle = game.cycle + 140
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this.collisionFilter.category = cat.bullet
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Matter.Body.setPosition(this, {
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x: mech.pos.x,
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y: mech.pos.y
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})
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Matter.Body.setAngle(this, mech.angle)
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const speed = 90
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Matter.Body.setVelocity(this, {
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x: mech.Vx / 2 + speed * this.charge * Math.cos(mech.angle),
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y: mech.Vy / 2 + speed * this.charge * Math.sin(mech.angle)
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});
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//knock back
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const KNOCK = ((mech.crouch) ? 0.1 : 0.5) * b.modBulletSize * b.modBulletSize * this.charge * this.charge
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player.force.x -= KNOCK * Math.cos(mech.angle)
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player.force.y -= KNOCK * Math.sin(mech.angle) * 0.35 //reduce knock back in vertical direction to stop super jumps
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|
||||
//push away blocks when firing
|
||||
let range = 700 * this.charge
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||||
for (let i = 0, len = body.length; i < len; ++i) {
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const SUB = Vector.sub(body[i].position, mech.pos)
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const DISTANCE = Vector.magnitude(SUB)
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|
||||
if (DISTANCE < range) {
|
||||
const DEPTH = Math.min(range - DISTANCE, 300)
|
||||
const FORCE = Vector.mult(Vector.normalise(SUB), 0.003 * Math.sqrt(DEPTH) * body[i].mass)
|
||||
body[i].force.x += FORCE.x;
|
||||
body[i].force.y += FORCE.y - body[i].mass * (game.g * 1.5); //kick up a bit to give them some arc
|
||||
}
|
||||
}
|
||||
for (let i = 0, len = mob.length; i < len; ++i) {
|
||||
const SUB = Vector.sub(mob[i].position, mech.pos)
|
||||
const DISTANCE = Vector.magnitude(SUB)
|
||||
|
||||
if (DISTANCE < range) {
|
||||
const DEPTH = Math.min(range - DISTANCE, 300)
|
||||
const FORCE = Vector.mult(Vector.normalise(SUB), 0.003 * Math.sqrt(DEPTH) * mob[i].mass)
|
||||
mob[i].force.x += 1.5 * FORCE.x;
|
||||
mob[i].force.y += 1.5 * FORCE.y;
|
||||
}
|
||||
}
|
||||
} else if (mech.fieldMeter > 0.005) { // charging on mouse down
|
||||
mech.fireCDcycle = Infinity //can't fire until mouse is released
|
||||
const lastCharge = this.charge
|
||||
let chargeRate = (mech.crouch) ? 0.965 : 0.985
|
||||
chargeRate *= Math.pow(b.modFireRate, 0.04)
|
||||
this.charge = this.charge * chargeRate + (1 - chargeRate) // this.charge converges to 1
|
||||
mech.fieldMeter -= (this.charge - lastCharge) * 0.25 //energy drain is proportional to charge gained, but doesn't stop normal mech.fieldRegen
|
||||
|
||||
//draw laser targeting
|
||||
let best;
|
||||
let range = 3000
|
||||
const dir = mech.angle
|
||||
const path = [{
|
||||
x: mech.pos.x + 20 * Math.cos(dir),
|
||||
y: mech.pos.y + 20 * Math.sin(dir)
|
||||
},
|
||||
{
|
||||
x: mech.pos.x + range * Math.cos(dir),
|
||||
y: mech.pos.y + range * Math.sin(dir)
|
||||
}
|
||||
];
|
||||
const vertexCollision = function (v1, v1End, domain) {
|
||||
for (let i = 0; i < domain.length; ++i) {
|
||||
let vertices = domain[i].vertices;
|
||||
const len = vertices.length - 1;
|
||||
for (let j = 0; j < len; j++) {
|
||||
results = game.checkLineIntersection(v1, v1End, vertices[j], vertices[j + 1]);
|
||||
if (results.onLine1 && results.onLine2) {
|
||||
const dx = v1.x - results.x;
|
||||
const dy = v1.y - results.y;
|
||||
const dist2 = dx * dx + dy * dy;
|
||||
if (dist2 < best.dist2) {
|
||||
best = {
|
||||
x: results.x,
|
||||
y: results.y,
|
||||
dist2: dist2,
|
||||
who: domain[i],
|
||||
v1: vertices[j],
|
||||
v2: vertices[j + 1]
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
results = game.checkLineIntersection(v1, v1End, vertices[0], vertices[len]);
|
||||
if (results.onLine1 && results.onLine2) {
|
||||
const dx = v1.x - results.x;
|
||||
const dy = v1.y - results.y;
|
||||
const dist2 = dx * dx + dy * dy;
|
||||
if (dist2 < best.dist2) {
|
||||
best = {
|
||||
x: results.x,
|
||||
y: results.y,
|
||||
dist2: dist2,
|
||||
who: domain[i],
|
||||
v1: vertices[0],
|
||||
v2: vertices[len]
|
||||
};
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
//check for collisions
|
||||
best = {
|
||||
x: null,
|
||||
y: null,
|
||||
dist2: Infinity,
|
||||
who: null,
|
||||
v1: null,
|
||||
v2: null
|
||||
};
|
||||
vertexCollision(path[0], path[1], mob);
|
||||
vertexCollision(path[0], path[1], map);
|
||||
vertexCollision(path[0], path[1], body);
|
||||
if (best.dist2 != Infinity) { //if hitting something
|
||||
path[path.length - 1] = {
|
||||
x: best.x,
|
||||
y: best.y
|
||||
};
|
||||
}
|
||||
|
||||
//draw laser beam
|
||||
ctx.beginPath();
|
||||
ctx.moveTo(path[0].x, path[0].y);
|
||||
ctx.lineTo(path[1].x, path[1].y);
|
||||
ctx.strokeStyle = `rgba(100,0,180,0.7)`;
|
||||
ctx.lineWidth = this.charge * 1
|
||||
ctx.setLineDash([10, 20]);
|
||||
ctx.stroke();
|
||||
ctx.setLineDash([0, 0]);
|
||||
|
||||
//draw magnetic field
|
||||
const X = mech.pos.x
|
||||
const Y = mech.pos.y
|
||||
const unitVector = Vector.normalise(Vector.sub(game.mouseInGame, mech.pos))
|
||||
const unitVectorPerp = Vector.perp(unitVector)
|
||||
|
||||
function magField(mag, arc) {
|
||||
ctx.moveTo(X, Y);
|
||||
ctx.bezierCurveTo(
|
||||
X + unitVector.x * mag, Y + unitVector.y * mag,
|
||||
X + unitVector.x * mag + unitVectorPerp.x * arc, Y + unitVector.y * mag + unitVectorPerp.y * arc,
|
||||
X + unitVectorPerp.x * arc, Y + unitVectorPerp.y * arc)
|
||||
ctx.bezierCurveTo(
|
||||
X - unitVector.x * mag + unitVectorPerp.x * arc, Y - unitVector.y * mag + unitVectorPerp.y * arc,
|
||||
X - unitVector.x * mag, Y - unitVector.y * mag,
|
||||
X, Y)
|
||||
}
|
||||
ctx.fillStyle = `rgba(50,0,100,0.05)`;
|
||||
for (let i = 3; i < 7; i++) {
|
||||
const MAG = 8 * i * i * this.charge * (0.93 + 0.07 * Math.random())
|
||||
const ARC = 6 * i * i * this.charge * (0.93 + 0.07 * Math.random())
|
||||
ctx.beginPath();
|
||||
magField(MAG, ARC)
|
||||
magField(MAG, -ARC)
|
||||
ctx.fill();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
},
|
||||
{
|
||||
name: "laser", //14
|
||||
description: "emit a beam of collimated coherent <strong>light</strong><br>drains <strong class='color-f'>energy</strong> instead of ammunition",
|
||||
|
||||
Reference in New Issue
Block a user