--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/front_processing/src/Fluid_manipulation/Fluid_manipulation.pde	Thu Mar 22 16:00:17 2012 +0100
@@ -0,0 +1,128 @@
+/*
+* This file is part of the TraKERS\Front Processing package.
+*
+* (c) IRI <http://www.iri.centrepompidou.fr/>
+*
+* For the full copyright and license information, please view the LICENSE_FRONT
+* file that was distributed with this source code.
+*/
+
+// fluid3 by Glen Murphy.
+// View the applet in use at http://bodytag.org/
+// Code has not been optimised, and will run fairly slowly.
+
+// Adjust the 'RES' variable below to change speed - higher is faster.
+// Don't forget to change the size command in setup if changing the
+// height/width.
+
+import TUIO.*;
+TuioProcessing tuioClient;
+
+TuioPoint precPoint;
+
+//Port du Client TUIO.
+int port = 80;
+//Limites de la zone de recherche pour les mains.
+float minDistHands = 1;
+float maxDistHands = 1.5;
+//Paramètres de la fenêtre.
+int WIDTH = 640;
+int HEIGHT = 480;
+
+int RES = 2;
+int PENSIZE = 30;
+
+int lwidth = WIDTH/RES;
+int lheight = HEIGHT/RES;
+int PNUM = 30000;
+vsquare[][] v = new vsquare[lwidth+1][lheight+1];
+vbuffer[][] vbuf = new vbuffer[lwidth+1][lheight+1];
+
+TuioPoint pt1, pt2, precPt1, precPt2;
+
+particle[] p = new particle[PNUM];
+int pcount = 0;
+int mouse1Xvel = 0;
+int mouse1Yvel = 0;
+int mouse2Xvel = 0;
+int mouse2Yvel = 0;
+
+/*FONCTION D'INITIALISATION
+Entrée :
+Sortie : Création de la fenêtre et du client TUIO*/
+public void setup()
+{
+    size (WIDTH, HEIGHT);
+    tuioClient = new TuioProcessing(this, port);
+    
+    background(#666666);
+    noStroke();
+    for(int i = 0; i < PNUM; i++)
+    {
+        p[i] = new particle(random(RES,WIDTH-RES),random(RES,HEIGHT-RES));
+    }
+    for(int i = 0; i <= lwidth; i++)
+    {
+        for(int u = 0; u <= lheight; u++)
+        {
+            v[i][u] = new vsquare(i*RES,u*RES);
+            vbuf[i][u] = new vbuffer(i*RES,u*RES);
+        }
+    }
+}
+
+void draw()
+{
+    tuioInput();
+    if(precPt1 != pt1 || precPt2 != pt2)
+    {
+      int a1xvel = 0, a1yvel = 0, a2xvel = 0, a2yvel = 0;
+      if(precPt1 != null && pt1 != null)
+      {
+        a1xvel = (int)pt1.getX()-(int)precPt1.getX();
+        a1yvel = (int)pt1.getY()-(int)precPt1.getY();
+        mouse1Xvel = (a1xvel != mouse1Xvel) ? a1xvel : 0;
+        mouse1Yvel = (a1yvel != mouse1Yvel) ? a1yvel : 0;
+      }
+      if(precPt2 != null && pt2 != null)
+      {
+        a2xvel = (int)pt2.getX()-(int)precPt2.getX();
+        a2yvel = (int)pt2.getY()-(int)precPt2.getY();
+        mouse2Xvel = (a2xvel != mouse2Xvel) ? a2xvel : 0;
+        mouse2Yvel = (a2yvel != mouse2Yvel) ? a2yvel : 0;
+      }
+      
+      for(int i = 0; i < lwidth; i++)
+      {
+          for(int u = 0; u < lheight; u++)
+          {
+              vbuf[i][u].updatebuf(i,u);
+              v[i][u].col = 32;
+          }
+      }
+      for(int i = 0; i < PNUM-1; i++)
+      {
+          p[i].updatepos();
+      }
+      for(int i = 0; i < lwidth; i++)
+      {
+          for(int u = 0; u < lheight; u++)
+          {
+              v[i][u].addbuffer(i, u);
+              v[i][u].updatevels(mouse1Xvel, mouse1Yvel, pt1);
+              if(pt2 != null)
+                v[i][u].updatevels(mouse2Xvel, mouse2Yvel, pt2);
+              v[i][u].display(i, u);
+          }
+      }
+      
+      precPt1 = pt1;
+      precPt2 = pt2;
+    }
+}
+
+void update(TuioPoint _pt1, TuioPoint _pt2)
+{
+  pt1 = _pt1;
+  pt2 = _pt2;
+}