added multiple games [broken]

src/chainGame.cpp

@@ -0,0 +1,87 @@
+#include "chainGame.h"
+#include "Arduino.h"
+#include "buttons.h"
+
+extern buttons button1;
+extern buttons button2;
+extern buttons button3;
+
+
+uint8_t patternIndex = 0;
+bool patternFlag = false;
+bool firstpattern = false;
+
+uint8_t ledpattern[4][3] = {
+  {1,0,0},
+  {0,0,1},
+  {1,0,0},
+  {0,1,0},
+};
+int patternlength = sizeof(ledpattern)/sizeof(ledpattern[0]);
+
+void nextPattern(void)
+{
+  if (patternIndex < patternlength-1)
+  {
+    patternIndex++;
+  }
+  else
+  {  
+    patternIndex = 0;
+  }
+}
+
+void HandleChainGame(void)
+{
+  if (button1.state())
+  {
+    if (!patternFlag)
+    {
+      //button detected, increase pattern
+      if(!firstpattern)
+      {
+        firstpattern = true;
+      }
+      else
+      {
+        nextPattern();
+      }
+      
+      patternFlag = true;
+    }
+  }
+
+  if (button2.state())
+  {
+    if (!patternFlag)
+    {
+      if(!firstpattern)
+      {
+        firstpattern = true;
+      }
+      else
+      {
+      //second input, skip a pattern
+      nextPattern();
+      nextPattern();
+      }
+      patternFlag = true;
+    }
+  }
+
+  if (button1.state() | button2.state())
+  {
+    //write pattern to the LEDs
+    digitalWrite(LED1, ledpattern[patternIndex][0]);
+    digitalWrite(LED2, ledpattern[patternIndex][1]);
+    digitalWrite(LED3, ledpattern[patternIndex][2]);
+  }
+  else
+  {
+    //leds off
+    digitalWrite(LED1, 0);
+    digitalWrite(LED2, 0);
+    digitalWrite(LED3, 0);
+    patternFlag = false;
+  }
+}