Dumped plans into TODO.md, minor edits to README

TODO.md

@@ -1,11 +1,54 @@
-### Important
-1. Add an improved conveyor belt drawing (creation/design) system
-2. Add localization support, storing game text in JSON files instead of within code. This is in response to a couple of translation requests from Omicron Translation Group on the Itch.io page. I [l5474] *might* be able to do it... eventually.
-3. Fix some AI going to the wall, as mentioned in #5
-4. Add configurable autosave feature
 
-### Optional/Low Priority
-1. Make minimap ~~or aux. tile loader for whole-map view~~
-2. Add in more teleporter colors maybe, and make a new teleporter color picker ui/tooltip. Very low priority
-3. Maybe make enemies manually spawnable in Sandbox Mode
-4. Maybe assign a key to make Mecha move faster
+### 3.0 Release
+- New tutorial with the power blocks.
+- New SFX for specific blocks, especially turrets
+- Block drawing layers. Refactor/remove `Block#drawOver()`, add `Layer` enum. Should fix 'glitchy' lasers and conveyor clipping.
+- Balance nuclear reactor, improve effectiveness. Currently underpowered.
+- Make generation frame independant.
+- Investigate issue #5 (enemies stuck in blocks)
+- Faster mech movement, possibly with a "boost" key
+- Balance enemy difficulty
+
+### 3.x Planned
+- New save system: toggleable autosave, named slots, less clunky save UI
+- Teleporter UI changes, more colors (?)
+- New building tools: selection-delete, hold to place blocks in a line, one-tap delete mode (mobile). New 'tool' menu (desktop).
+- Refactor `Renderer`, remove code for rendering platform-specific placement and move to 2 different classes
+- New map format system. Each new version is a different class, convert between different versions.
+- Underground conduits
+- Minimap
+- More indicators for when the core is damaged and/or under attack
+
+
+### 4.0 Planned
+- Multiplayer framework, possibly implementation
+- New look to blocks, make them less 'blocky'
+
+### Misc
+- Localization support. Change all in-game strings to localized strings. Check compatibility with GWT and Android libraries.
+
+### Possible Additions
+- Mech body upgrades
+- Uranium extractor / uranium->iron converter
+- Laser enemies
+- Flying enemies that move in formation and spawn from different locations
+- Fusion reactor
+- Point defense turrets that take down projectiles
+- Turrets fueled by lava
+- Gas transporation and use
+- Better enemy effects and looks
+- Homing missile enemies and turrets
+- Reflective shield blocks
+- Tech tree with bonuses to production or turrets
+- Spawn points changed into enemy bases with hostile turrets
+- Unit production
+
+### Optmiziation
+- Look into uses for `IntMap`
+- Spread updating over multiple frames for large groups of specific tile entities (?)
+- Optimize enemy + bullet code and check quadtree leaf parameters
+- Check for unnecessary use of `Timers#get()`
+- Optimize generator laser distribution, especially finding targets
+- Optimize UI
+- Check memory usage and GC, profile
+