add level init + rand spawn

Snake/src/level.py

@@ -0,0 +1,21 @@
+import numpy as np
+import random
+
+# 0 = AIR
+# 1 = SNAKE
+# 2 = WALL
+# 3 = APPLE
+
+def init_level(heigh, width):
+    return np.zeros((heigh, width))
+
+def spawn_apple(M, heigh, width):
+    random.seed()
+    rand_heigh = random.randrange(0, heigh)
+    rand_width = random.randrange(0, width)
+
+    if M[rand_heigh][rand_width] == 0:
+        M[rand_heigh][rand_width] = 3
+    else:
+        spawn_apple(M, heigh, width)
+