From d79e7340e8b21fea4b0c28236314a5025879af50 Mon Sep 17 00:00:00 2001
From: Nils Schneider <nils.schneider@gmail.com>
Date: Sun, 6 Nov 2011 19:07:23 +0100
Subject: framebuffer + fading

---
 Matrix_5x6/Charlie/Charlie.pde | 84 +++++++++++++++++++++++++++++++++++++-----
 1 file changed, 75 insertions(+), 9 deletions(-)

diff --git a/Matrix_5x6/Charlie/Charlie.pde b/Matrix_5x6/Charlie/Charlie.pde
index a0d2b73..ee7f5dd 100644
--- a/Matrix_5x6/Charlie/Charlie.pde
+++ b/Matrix_5x6/Charlie/Charlie.pde
@@ -11,19 +11,85 @@ charliePin ledi[] = { {0, 1} , {1, 0} , {2, 0} , {3, 0} , {4, 0} , {5, 0},
                       {0, 5} , {1, 5} , {2, 5} , {3, 5} , {4, 5} , {5, 4},
                     };
 
+int scr[6][5];
+
+void clrscr() {
+  int x, y;
+  for (x=0; x<6; x++) 
+    for (y=0; y<5; y++)
+      scr[x][y] = 0;
+}
+
+void drawscr(int c) {
+  int x, y;
+  int s;
+  while (c--) {
+    s = 20;
+    while(s--)
+      for (x=0; x<6; x++)
+         for (y=0; y<5; y++) {
+           charlieplex.charlieWrite(ledi[x+y*6], scr[x][y]>s?HIGH:LOW);
+           charlieplex.clear();
+         }
+  
+  }
+}
+
+void fadescr_down() {
+  int x, y;
+  for (x=0; x<6; x++) 
+    for (y=0; y<5; y++)
+      if (scr[x][y])
+        scr[x][y] -= 1;
+}
+
+void fadescr_up() {
+  int x, y;
+  for (x=0; x<6; x++) 
+    for (y=0; y<5; y++)
+      if (scr[x][y] < 30)
+        scr[x][y] += 1;
+}
+
+
 int an  = 2;
 int aus = 10;
 
 void setup(){ /*nothing*/ }
  
-void loop(){
-  int i;
-  for (i=0; i<30; i++){
-    charlieplex.charlieWrite(ledi[i],HIGH);
-    delay(an);
-    charlieplex.clear();
-    delay(aus);
-  }
-      
+void zufall_fading() {
+  clrscr();
+  int x, y;
+  for (x=0; x<6; x++)
+    for (y=0; y<5; y++)
+      scr[x][y] = random(30) + 2;
+
+  int i=30;
+
+  while (i--) {
+  drawscr(2); 
+  fadescr_down();
+  }  
+
+}
+
+void zufall_fading2() {
+  clrscr();
+  int x, y;
+  for (x=0; x<6; x++)
+    for (y=0; y<5; y++)
+      scr[x][y] = - random(30) - 2;
+
+  int i=50;
+
+  while (i--) {
+  drawscr(2); 
+  fadescr_up();
+  }  
+
+ 
+}
 
+void loop() {
+  zufall_fading2();
 }
-- 
cgit v1.2.3