Add non-code comments in doc.md; update plans.md

doc.md

@@ -0,0 +1,10 @@
+> Due to the nature of the editor, sometimes I make code decisions I cannot comment. Here's where I put that stuff.
+
+Collision layers
+================
+
+1 = level geometry / etc
+2 = objective (I think)
+3 = players (except Hero 2)
+4 = hero 2 only
+

plans.md

@@ -10,9 +10,13 @@ Big TODOs:
 
 Smaller TODOs:
 
+- Too much time "waiting" - too hard to get to objective
 - Allow non-playing server to keep running and connecting people
 - Art?
   - Particles - wall destruction, wallriding
+- Ira is OP?
+- Industria is too individual?
+- player_name.gd:15 (error on Silas's=client side)
 
 Bugs:
 
@@ -21,3 +25,4 @@ Landmarks:
 When you have a workable demo: @mention @turion@mastodon.art
 
 Design ideas too long for the README:
+