[code] Added default Fibonacci script.

Change-Id: I2766fa542ee64722018486a874e9855a5976a788

apps/code/script_template.cpp

@@ -0,0 +1,72 @@
+#include "script_template.h"
+
+namespace Code {
+
+constexpr ScriptTemplate emptyScriptTemplate(".py", R"()");
+
+constexpr ScriptTemplate factorialScriptTemplate("factorial.py", R"(def factorial(n):
+  if n == 0:
+    return 1
+  else:
+    return n * factorial(n-1))");
+
+constexpr ScriptTemplate fibonacciScriptTemplate("fibonacci.py", R"(def fibo(n):
+  a=0
+  b=1
+  for i in range(1,n+1):
+    c=a+b
+    a=b
+    b=c
+  return a
+
+def fibo2(n):
+  if n==0:
+    return 0
+  elif n==1 or n==2:
+    return 1
+  return fibo2(n-1)+fibo2(n-2))");
+
+constexpr ScriptTemplate mandelbrotScriptTemplate("mandelbrot.py", R"(# This script draws a Mandelbrot fractal set
+# N_iteration: degree of precision
+import kandinsky
+N_iteration = 10
+def drawMandelbrot():
+  for x in range(320):
+    for y in range(240):
+# Compute the mandelbrot sequence for the point c = (c_r, c_i) with start value z = (z_r, z_i)
+      z_r = 0
+      z_i = 0
+# Rescale to fit the drawing screen 320x222
+      c_r = 2.7*x/319-2.1
+      c_i = -1.87*y/221+0.935
+      i = 0
+      while (i < N_iteration) and ((z_r * z_r) + (z_i * z_i) < 4):
+        i = i + 1
+        stock = z_r
+        z_r = z_r * z_r - z_i * z_i + c_r
+        z_i = 2 * stock * z_i + c_i
+# Choose the color of the dot from the Mandelbrot sequence
+      rgb = int(255*i/N_iteration)
+      col = kandinsky.color(int(rgb),int(rgb*0.75),int(rgb*0.25))
+# Draw a pixel colored in 'col' at position (x,y)
+      kandinsky.set_pixel(x,y,col))");
+
+const ScriptTemplate * ScriptTemplate::Empty() {
+  return &emptyScriptTemplate;
+}
+
+const ScriptTemplate * ScriptTemplate::Factorial() {
+  return &factorialScriptTemplate;
+}
+
+const ScriptTemplate * ScriptTemplate::Fibonacci() {
+  return &fibonacciScriptTemplate;
+}
+
+const ScriptTemplate * ScriptTemplate::Mandelbrot() {
+  return &mandelbrotScriptTemplate;
+}
+
+}
+
+