From 33d44d1bb12acdde493ad1e5f3d37605ea7bdf46 Mon Sep 17 00:00:00 2001
From: Stasinos Konstantopoulos <konstant@iit.demokritos.gr>
Date: Wed, 17 Oct 2018 11:38:46 +0300
Subject: [PATCH] Pause button

---
 LICENSE    |  2 +-
 index.html | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/LICENSE b/LICENSE
index 7d4b906..6d2b72f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016 Jake Gordon and contributors
+Copyright (c) 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Jake Gordon and contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/index.html b/index.html
index 13772a9..8405d8d 100644
--- a/index.html
+++ b/index.html
@@ -68,7 +68,7 @@
     // game constants
     //-------------------------------------------------------------------------
 
-    var KEY     = { ESC: 27, SPACE: 32, LEFT: 37, UP: 38, RIGHT: 39, DOWN: 40, SHIFT: 16 },
+    var KEY     = { ESC: 27, SPACE: 32, LEFT: 37, UP: 38, RIGHT: 39, DOWN: 40, SHIFT: 16, P: 80 },
 	// drop all the way to BOTTOM is an action, but MAX=3 to avoid reaching
 	// it by rotation
         DIR     = { UP: 0, RIGHT: 1, DOWN: 2, LEFT: 3, BOTTOM:4, MIN: 0, MAX: 3 },
@@ -78,6 +78,7 @@
         ucanvas = get('upcoming'),
         uctx    = ucanvas.getContext('2d'),
         speed   = { start: 0.6, decrement: 0.005, min: 0.1 }, // how long before piece drops by 1 row (seconds)
+        paused  = 0,
         nx      = 10, // width of tetris court (in blocks)
         ny      = 20, // height of tetris court (in blocks)
         nu      = 5;  // width/height of upcoming preview (in blocks)
@@ -229,6 +230,15 @@
  	    }
 	    break;
           case KEY.ESC:   lose();                   handled = true; break;
+          case KEY.P:
+            if( paused == 1 ) {
+                paused = 0;
+            }
+            else {
+                paused = 1;
+            }
+            handled = true;
+            break;
         }
       }
       else if (ev.keyCode == KEY.SPACE) {
@@ -320,6 +330,9 @@
     }
 
     function drop() {
+      if( paused == 0 ) {
+        console.log( "0" );
+      
       if (!move(DIR.DOWN)) {
         addScore(10);
         dropPiece();
@@ -331,6 +344,7 @@
           lose();
         }
       }
+      } // paused
     }
 
     function dropMany() {