From 53a3fd40bbb48301e3b09e6ca2264a713027c7f6 Mon Sep 17 00:00:00 2001
From: Koichi KAMICHI <kamichi@fonts.jp>
Date: Tue, 25 Aug 2009 12:15:25 +0000
Subject: [PATCH] *** empty log message ***

---
 engine/2d.js |  129 ----------------------------------------------------------
 1 file changed, 129 deletions(-)
 delete mode 100644 engine/2d.js

diff --git a/engine/2d.js b/engine/2d.js
deleted file mode 100644
index 864f22f..0000000
--- a/engine/2d.js
+++ /dev/null
@@ -1,129 +0,0 @@
-// Reference : http://www.cam.hi-ho.ne.jp/strong_warriors/teacher/chapter0{4,5}.html
-
-function point(x, y){
-  this.x = x;
-  this.y = y;
-}
-
-function getCrossPoint(x11, y11, x12, y12, x21, y21, x22, y22){ // point
-  var a1 = y12 - y11;
-  var b1 = x11 - x12;
-  var c1 = -1 * a1 * x11 - b1 * y11;
-  var a2 = y22 - y21;
-  var b2 = x21 - x22;
-  var c2 = -1 * a2 * x21 - b2 * y21;
-  
-  var temp = b1 * a2 - b2 * a1;
-  if(temp == 0){ // parallel
-    return false;
-  }
-  return new point((c1 * b2 - c2 * b1) / temp, (a1 * c2 - a2 * c1) / temp);
-}
-
-function isCross(x11, y11, x12, y12, x21, y21, x22, y22){ // boolean
-  var temp = getCrossPoint(x11, y11, x12, y12, x21, y21, x22, y22);
-  if(!temp){ return false; }
-  if(x11 < x12 && (temp.x < x11 || x12 < temp.x) ||
-     x11 > x12 && (temp.x < x12 || x11 < temp.x) ||
-     y11 < y12 && (temp.y < y11 || y12 < temp.y) ||
-     y11 > y12 && (temp.y < y12 || y11 < temp.y)
-     ){
-    return false;
-  }
-  if(x21 < x22 && (temp.x < x21 || x22 < temp.x) ||
-     x21 > x22 && (temp.x < x22 || x21 < temp.x) ||
-     y21 < y22 && (temp.y < y21 || y22 < temp.y) ||
-     y21 > y22 && (temp.y < y22 || y21 < temp.y)
-     ){
-    return false;
-  }
-  return true;
-}
-
-function isCrossBox(x1, y1, x2, y2, bx1, by1, bx2, by2){ // boolean
-  if(isCross(x1, y1, x2, y2, bx1, by1, bx2, by1)){ return true; }
-  if(isCross(x1, y1, x2, y2, bx2, by1, bx2, by2)){ return true; }
-  if(isCross(x1, y1, x2, y2, bx1, by2, bx2, by2)){ return true; }
-  if(isCross(x1, y1, x2, y2, bx1, by1, bx1, by2)){ return true; }
-  return false;
-}
-
-function isCrossBoxWithOthers(strokesArray, i, bx1, by1, bx2, by2){ // boolean
-  for(var j = 0; j < strokesArray.length; j++){
-    if(i == j){ continue; }
-    switch(strokesArray[j][0]){
-    case 0:
-    case 8:
-    case 9:
-      break;
-    case 6:
-    case 7:
-      if(isCrossBox(strokesArray[j][7],
-                    strokesArray[j][8],
-                    strokesArray[j][9],
-                    strokesArray[j][10],
-                    bx1, by1, bx2, by2)){
-        return true;
-      }
-    case 2:
-    case 12:
-    case 3:
-      if(isCrossBox(strokesArray[j][5],
-                    strokesArray[j][6],
-                    strokesArray[j][7],
-                    strokesArray[j][8],
-                    bx1, by1, bx2, by2)){
-        return true;
-      }
-    default:
-      if(isCrossBox(strokesArray[j][3],
-                    strokesArray[j][4],
-                    strokesArray[j][5],
-                    strokesArray[j][6],
-                    bx1, by1, bx2, by2)){
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-function isCrossWithOthers(strokesArray, i, bx1, by1, bx2, by2){ // boolean
-  for(var j = 0; j < strokesArray.length; j++){
-    if(i == j){ continue; }
-    switch(strokesArray[j][0]){
-    case 0:
-    case 8:
-    case 9:
-      break;
-    case 6:
-    case 7:
-      if(isCross(strokesArray[j][7],
-                 strokesArray[j][8],
-                 strokesArray[j][9],
-                 strokesArray[j][10],
-                 bx1, by1, bx2, by2)){
-        return true;
-      }
-    case 2:
-    case 12:
-    case 3:
-      if(isCross(strokesArray[j][5],
-                 strokesArray[j][6],
-                 strokesArray[j][7],
-                 strokesArray[j][8],
-                 bx1, by1, bx2, by2)){
-        return true;
-      }
-    default:
-      if(isCross(strokesArray[j][3],
-                 strokesArray[j][4],
-                 strokesArray[j][5],
-                 strokesArray[j][6],
-                 bx1, by1, bx2, by2)){
-        return true;
-      }
-    }
-  }
-  return false;
-}
-- 
1.7.10.4