KO and HP above user

common/player.js

@@ -1,4 +1,14 @@
-function Player(you) {
+function distF(ent, target) {
+    return ((ent.pos.x - target.pos.x) ** 2) + ((ent.pos.y - target.pos.y) ** 2)
+}
+
+function uuidv4() {
+    return "#000000-000000".replace(/[018]/g, c =>
+        (+c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> +c / 4).toString(16)
+    );
+}
+
+function Player(you, isPlayer) {
     let pos = { x: Math.random() * 5000 - 50, y: Math.random() * 5000 - 50 };
     let camera = { x: -pos.x, y: -pos.y };
     let vel = { x: 0, y: 0 };
@@ -12,7 +22,11 @@ function Player(you) {
 
     this.health = 100;
 
-    this.you = you;
+    this.you = you || uuidv4();
+
+    this.isPlayer = isPlayer;
+
+    this.headCount = 0;
 }
 
 Player.prototype.bump = function () {
@@ -31,11 +45,13 @@ Player.prototype.bump = function () {
     player.ticks = 0;
 }
 
-Player.prototype.handleTick = function(game) {
-    let { player } = game;
+Player.prototype.handleTick = function (game) {
+    let { entities } = game;
 
     let ent = this;
 
+    if (ent.health <= 0) return;
+
     ent.pos.x += ent.vel.x;
     ent.pos.y += ent.vel.y;
 
@@ -50,22 +66,22 @@ Player.prototype.handleTick = function(game) {
 
     ent.ticks++;
 
-    let dist = ((ent.pos.x - player.pos.x) ** 2) + ((ent.pos.y - player.pos.y) ** 2);
+    for (let target of entities) {
+        if (target.you == ent.you) continue;
 
-    let dp = (Math.sin(ent.rot) * (ent.pos.x - player.pos.x))
-        - (Math.cos(ent.rot) * (ent.pos.y - player.pos.y));
+        let dist = distF(ent, target);
 
-    dp /= dist;
+        let dp = (Math.sin(ent.rot) * (ent.pos.x - target.pos.x))
+            - (Math.cos(ent.rot) * (ent.pos.y - target.pos.y));
 
-    dp *= 10;
+        dp /= Math.sqrt(dist + 0.1);
 
-    if (ent.you) return;
+        if (Math.sqrt(dist) < 128 && 1 / dp < -0.2) {
+            target.health--;
 
-    if (Math.random() < -dp && Math.random() > 3 / (ent.ticks+2)) {
-        ent.bump();
-    }
-
-    if (Math.sqrt(dist) < 96 / 2) {
-        player.health --;
+            if (target.health == 0) {
+                ent.headCount++;
+            }
+        }
     }
 }