From c1965d96a4e01f1394217f7fea4369ddee4ef5a2 Mon Sep 17 00:00:00 2001
From: Elijah Cohen <eli@eli173.com>
Date: Wed, 1 May 2019 00:45:06 -0500
Subject: [PATCH] idk commiting for the sake of it mostly, added proper angle
 stuff

---
 server/endpoints.js | 17 +++++++++++++++++
 server/gamestate.js |  5 +++--
 web/draw.js         | 11 ++++++++---
 3 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/server/endpoints.js b/server/endpoints.js
index bd5b51c..bc08424 100644
--- a/server/endpoints.js
+++ b/server/endpoints.js
@@ -1,5 +1,7 @@
 
 
+const c = require('./constants.js');
+
 var Endpoints = function(f,s,id) {
     // f,s are first, second coordinates, in increasing angle
     // id corresponds to a player, or -1 or smth if n/a
@@ -9,5 +11,20 @@ var Endpoints = function(f,s,id) {
     this.id = id;
 }
 
+var AnglePair = function(f,s,id) {
+    this.f = f;
+    this.s = s;
+    this.id = id;
+}
+
+Endpoints.prototype.getAngles = function() {
+    // gets an anglepair for the endpoints. does assume the first angle is before second
+    var fst = Math.atan2(this.f.y, this.f.x);
+    var snd = Math.atan2(this.s.y, this.s.x);
+    if(snd < fst) {
+	snd += 2*Math.PI;
+    }
+    return new AnglePair(fst-c.ANGLE_THRESH, snd+c.ANGLE_THRESH, this.id);
+}
 
 module.exports = Endpoints;
diff --git a/server/gamestate.js b/server/gamestate.js
index eba3a8b..2462914 100644
--- a/server/gamestate.js
+++ b/server/gamestate.js
@@ -64,7 +64,7 @@ GameState.prototype.update = function(inputs) {
     //
     var endpoints = field.genAllEndpoints(this.numPlayers, this.dead);
     var livingzones = endpoints.filter(e => (e.id != -1));
-    livingzones = livingzones.filter(e => this.dead.some(d => (d.id!=e.id))); // bad time complexity?
+    livingzones = livingzones.filter(e => !this.dead.some(d => (d.id==e.id))); // bad time complexity?
     var walls = endpoints.filter(e => (e.id == -1) || this.dead.some(d => (d.id==e.id)));
     // check for collisions
     for(var ball of this.balls) {
@@ -134,7 +134,8 @@ GameState.prototype.update = function(inputs) {
     // JUST REWRITE HERE TO AVOID field.angles, I CAN JUST DO ARCTAN ON PLAYERPOINTS
     var zero = new Coord(0,0);
     var oobs = this.balls.filter(b => (b.coord.dist2(zero)>(c.BOARD_RADIUS+c.OOB_THRESH)**2));
-    var angs = field.angles(this.numPlayers, this.dead, c.ANGLE_THRESH);
+    var angs = livingzones.map(eps => eps.getAngles());
+    //var angs = field.angles(this.numPlayers, this.dead, c.ANGLE_THRESH);
     for(var oob of oobs) {
 	var oobth = oob.get_angle();
 	for(var ang of angs) {
diff --git a/web/draw.js b/web/draw.js
index cbad3a7..f6f0c7d 100644
--- a/web/draw.js
+++ b/web/draw.js
@@ -6,6 +6,7 @@ dwallcolor = 'rgb(200,0,0)';
 wallcolor = 'rgb(100,100,0)';
 pcolor = 'rgb(0,0,200)';
 bcolor = 'rgb(100,100,100)';
+xcolor = 'rgb(200,0,200)';
 
 
 // main function, given everything from the game state, draws on the given context
@@ -18,8 +19,7 @@ var draw = function(state, ctx) {
     //console.log(state);
 
     var endpoints = genAllEndpoints(state.n, state.dead);
-    console.log(endpoints);
-    var livingzones = endpoints.filter(e => (e.id != -1) && (state.dead.some(d=>(d.id!=e.id))));
+    var livingzones = endpoints.filter(e => (e.id != -1) && (!state.dead.some(d=>(d.id==e.id))));
     var walls = endpoints.filter(e => (e.id==-1) || state.dead.some(d=>(d.id==e.id)));
     //draw walls
     for(var eps of walls) {
@@ -29,16 +29,21 @@ var draw = function(state, ctx) {
 	}
 	drawLine(ctx, c, eps.f, eps.s);
     }
+    // do something to show the zones for my sanity
+    for(var lz of livingzones) {
+	drawLine(ctx, xcolor, lz.f, lz.s);
+    }
     // balls
     for(var b of state.balls) {
 	drawBall(ctx, bcolor, b);
     }
     // finally the paddles...
     for(var eps of livingzones) {
-	var paddle = state.paddles.find(p => (p.id==ep.id)); //should be guaranteed?
+	var paddle = state.paddles.find(p => (p.id==eps.id)); //should be guaranteed?
 	if(paddle === undefined) alert("UH OH, paddle somehow undefined");
 	// cool this is way simpler since we know these are all alive
 	var pps = getPaddlePoints(paddle, eps);
+	console.log(pps);
 	drawLine(ctx, pcolor, pps.f, pps.s);
     }
 }
-- 
2.39.2