initialize new snakes with demo code

ide/templates/ide/initial-bot.lua

+--- WELCOME TO YOUR FIRST SNAKE!
+-- you can edit this code, save and run it.
+
+-- you should see log output at the bottom of this page,
+-- and a live view on your snake's wellbeing on the right
+
+--- init() is called once upon creation of the bot
+-- initialize your data here, and maybe set colors for your snake
+function init()
+    self.colors = { 0xFF0000, 0x808080 }
+end
+
+--- step() is called once every frame, maybe up to 60 times per second.
+-- implement your game logic here.
+-- after deciding what your bot should do next,
+-- just return the desired steering angle.
+-- a negative angle means turn left and a positive angle means turn right.
+-- with 0, the snake keeps its current direction.
+function step()
+
+    -- your snake needs food to grow
+    -- to find food in your head's surroundings, call something like that:
+    local food = findFood(100, 0.8)
+    -- this will give you all food in maximum distance of 100 around your head,
+    -- with a value of at least 0.8
+
+    -- you can iterate over the result:
+    for i, item in food:pairs() do
+
+        -- distance of the food item, relative to the center of your head
+        local distance = item.dist
+
+        -- direction to the food item, in radiens.
+        -- 0 means "straight ahead", math.pi means "right behind you"
+        local direction = item.d
+
+	end
+
+    -- you should also look out for your enemies.
+    -- to find snake segments around you, call:
+    local segments = findSegments(100, false)
+
+    -- in return, you get a list of
+    -- all snake segments nearer than 100 to your head,
+    -- in this case not including your own segments:
+    for i, item in segments:pairs() do
+
+        -- id of the bot the segment belongs to
+        -- (you can compare this to self.id)
+        local bot = item.bot
+
+        -- distance to the center of the segment
+        local distance = item.dist
+
+        -- direction to the segment
+        local direction = item.d
+
+        -- radius of the segment
+        local radius = item.r
+
+        if distance<10 then
+            -- you can send some log output to the web IDE, but it's rate limited.
+            log("oh no, i'm going to die!")
+        end
+	end
+
+    return 0.002 -- this will lead us in a large circle, clockwise.
+end
\ No newline at end of file

ide/views.py

@@ -4,6 +4,7 @@ from django.db.models import BooleanField, Case, Max, Value, When
 from django.forms import ModelForm
 from django.http import JsonResponse
 from django.shortcuts import render, redirect
+from django.template.loader import render_to_string
 
 from core.models import SnakeVersion, ActiveSnake, ServerCommand, UserProfile
 
@@ -44,6 +45,7 @@ def snake_edit(request, snake_id=-1):
         snake = SnakeVersion.objects.get(pk=snake_id)
     except SnakeVersion.DoesNotExist:
         snake = SnakeVersion(version=0, user=request.user)
+        snake.code = render_to_string('ide/initial-bot.lua')
 
     if snake.user != request.user:
         raise PermissionDenied

visualization/static/visualization/Snake.js

-    "use strict";
+"use strict";
 
 function SnakeSegment(snake)
 {