fixes for gameplay

CLAUDE.md

@@ -16,7 +16,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 After install with 'make', just run 'cell' and point it at the actor you want to launch. "cell tests/toml" runs the actor "tests/toml.js"
 
 ## Scripting language
-This is called "cell", but it is is a variant of javascript and extremely similar.
+This is called "cell", a variant of JavaScript with important differences. See docs/cell.md for detailed language documentation.
 
 ### Common development commands
 - `meson setup build_<variant>` - Configure build directory
@@ -34,12 +34,16 @@ Prosperon is an actor-based game engine inspired by Douglas Crockford's Misty sy
 - Hierarchical actor system with spawning/killing
 - Actor lifecycle: awake, update, draw, garbage collection
 
-### JavaScript Style Guide
+### Cell Language Style Guide
 - Use `use()` function for imports (Misty-style, not ES6 import/export)
 - Prefer closures and javascript objects and prototypes over ES6 style classes
 - Follow existing JavaScript patterns in the codebase
 - Functions as first-class citizens
-- Do not use const or let; only var
+- Use `def` for constants (not const)
+- Use `var` for variables (block-scoped like let)
+- Check for null with `== null` (no undefined in Cell)
+- Use `==` for equality (always strict, no `===`)
+- See docs/cell.md for complete language reference
 
 ### Core Systems
 1. **Actor System** (scripts/core/engine.js)
@@ -99,7 +103,7 @@ cd examples/chess
 - Documentation is found in docs
 - Documentation for the JS modules loaded with 'use' is docs/api/modules
 - .md files directly in docs gives a high level overview
-- docs/dull is what this specific Javascript system is (including alterations from quickjs/es6)
+- docs/cell.md documents the Cell language (JavaScript variant used in Prosperon)
 
 ### Shader Development
 - Shaders are in `shaders/` directory as HLSL