fixed wasd in tetris

Tetris/js/controller.js

@@ -7,10 +7,10 @@ document.body.onkeydown = function( e ) {
         32: 'drop'
     };
     var keys = {
-        68: 'left',
-        65: 'right',
-        83: 'down',
-        87: 'rotate',
+        65: 'left2',
+        68: 'right2',
+        83: 'down2',
+        87: 'rotate2',
     };
     if ( typeof keys[ e.keyCode ] != 'undefined' ) {
         keyPress( keys[ e.keyCode ] );

Tetris/js/tetris.js

@@ -158,6 +158,33 @@ function keyPress( key ) {
             break;
     }
 }
+function keyPress( key ) {
+    switch ( key ) {
+        case 'left2':
+            if ( valid( -1 ) ) {
+                --currentX;
+            }
+            break;
+        case 'right2':
+            if ( valid( 1 ) ) {
+                ++currentX;
+            }
+            break;
+        case 'down2':
+            if ( valid( 0, 1 ) ) {
+                ++currentY;
+            }
+            break;
+        case 'rotate2':
+            var rotated = rotate( current );
+            if ( valid( 0, 0, rotated ) ) {
+                current = rotated;
+
+            }
+            tick();
+            break;
+    }
+}
 
 // checks if the resulting position of current shape will be feasible
 function valid( offsetX, offsetY, newCurrent ) {