feature

name	feature
description	Plan and implement a feature from the game design doc
argument-hint	[feature name]
allowed-tools	["Read","Grep","Glob","Edit","Write","Bash","mcp__automation__screenshot","mcp__automation__mouseClick"]
model	sonnet

Implement Feature

Implement a specific feature from the GridRacer design document.

Arguments

$ARGUMENTS - Feature name (e.g., "collision detection", "lap counting", "move preview")

Process

1. Research

• Read docs/GridRacer Concept.md for specifications
• Find relevant sections for the feature
• Identify dependencies and prerequisites

2. Plan

• Break into subtasks
• Identify files to modify
• Design data structures if needed
• Consider edge cases from design doc

3. Implement

• Write code following project conventions
• Use value types (structs) for game state
• Integer-only coordinates
• Follow naming conventions

4. Test

• Add unit tests for game logic
• Run /test to verify
• Run /play-test for visual verification

5. Document

• Update architecture.md if needed
• Add to known-issues.md if incomplete

Feature Checklist from Design Doc

• Grid rendering
• Movement model (position + velocity + acceleration)
• 9 acceleration options UI
• Path checking (Bresenham's algorithm)
• Collision detection
• Crash handling (life lost, respawn)
• Lap counting
• Win conditions
• AI opponent
• Move preview markers
• Velocity vector display