10 * Maybe configure lights in separate json file, to allow reuse of consistent models in multiple levels?
11 * Allow going down to zero seeds by buying lights if a turnip is planted
12 * Maybe make the mould weaker at the start
13 * Maybe also display information next to existing lights -- tooltip?
14 * Generally balance the levels better and add more levels
15 * Graphical level selection with screenshots
16 * Fast forward button for night-time (calculate more steps between redraws; play sounds sped up and with higher pitch)
23 * Light colour selection
24 * All lights multicolour
25 * Light direction configuration
27 * Sunrise transition screen
28 * Lose condition (no turnips and no seeds)
29 * 'End the Day' button
32 * Battery and light power consts
33 * Mould power increases to prevent farming
34 * Night remaining counter
36 * Seralize light on / off and colour selection state across day / night transition
40 * Image for pulsating lamp
41 * Add placement error sounds
42 * Add sound for battery going dead
44 * Bug: have to click lights multiple times to turn them back on after the power has died
45 * Bug: Crash when removing a rotating light
46 * Turnip / light spacing bug: a light can be placed right below a turnip, but must be much further away if above the turnip. This happens whether the turnip or the light is placed first. I assume it has to do with how the turnip image is positioned relative to its body.
47 * Allow denser turnip spacing
48 * Different power usage for different lights (this was already done)
49 * Different prices for different lights
50 * Calculate both from # of colours, speed, beam width, etc.?
51 * added tooltips for lights
52 * Display average power usage in light tooltip