4K Pomodoro Timer | Coding 2.5D Raycaster Engine in TypeScript | Lofi & ASMR [2 Hours]

4K Pomodoro Timer | Coding 2.5D Raycaster Engine in TypeScript | Lofi & ASMR [2 Hours] Welcome to this 4K ambient developer deep work study session. In this session, we build a complete 2.5D pseudo-3D Raycasting Engine (Wolfenstein 3D style) in TypeScript and HTML5 Canvas from scratch, featuring Digital Differential Analyzer (DDA) grid stepping, directional texture shading, billboard sprite depth projection, distance fog, and an autonomous corridor exploration bot with minimap radar. Designed for deep focus, flow state, and productivity, this video combines tactile mechanical keyboard typing ASMR, procedurally synthesized analog lo-fi chords, brown noise rain texture, and a gentle 528Hz Solfeggio transition chime. ⏱️ SESSION STRUCTURE (25/5 INTERVALS) • Duration Tier: 2 Hours (Deep Work / 25-5 Classical Rhythm) • Focus Duration: 25 Minutes per cycle • Break Duration: 5 Minutes per cycle • Total Cycles: 4 Cycles • Visual Theme: Nord 📌 CHAPTERS 00:00 - Focus Session 1: Vector Math, Camera Matrix & 24x24 Dungeon Geometry (types.ts & constants.ts) 25:00 - Break 1: 2.5D Raycaster Dungeon Explorer Simulation Payoff 30:00 - Focus Session 2: Camera Rotation Matrix, Collision Sliding & DDA Raycasting (camera.ts & raycaster.ts) 55:00 - Break 2: 2.5D Raycaster Dungeon Explorer Simulation Payoff 1:00:00 - Focus Session 3: Billboard Sprite Projection & Z-Buffer Occlusion (sprites.ts) 1:25:00 - Break 3: 2.5D Raycaster Dungeon Explorer Simulation Payoff 1:30:00 - Focus Session 4: Autonomous Corridor Explorer AI & Canvas 2D Minimap Radar (ai.ts & renderer.ts) 1:55:00 - Break 4: 2.5D Raycaster Dungeon Explorer Simulation Payoff 2:00:00 - Climax Payoff & Completed Game Showcase 💻 PROJECT BREAKDOWN: 2.5D RAYCASTER ENGINE IN TYPESCRIPT (~1,020 TOTAL LOC) The engine is implemented step-by-step across 7 chronological diff milestones: 1. types.ts: Vector2, Camera, RayHit, Sprite, and RaycasterEngineState contracts. 2. constants.ts: 24x24 dungeon maze layout, Nord palette tiles, and entity spawns. 3. camera.ts: 2D rotation matrix, orthogonal wall-sliding collision response, and walking bobbing. 4. raycaster.ts: Digital Differential Analyzer (DDA) grid traversal and perpWallDist projection. 5. sprites.ts: Billboard camera-space transformation, distance sorting, and z-buffer clipping. 6. ai.ts: Multi-probe autonomous obstacle avoidance bot navigating corridors. 7. renderer.ts: Shaded vertical wall columns, distance fog, weapon bobbing, and top-down radar. 🎧 MULTI-LAYERED SOUND DESIGN & AUDIO ENGINEERING All audio stems are procedurally synthesized in pure Node.js (16-bit 48kHz stereo PCM): • Layer 1 (-18 dBFS): Ambient Lo-Fi Melodic Pads (Ebmaj9, Cm9, Abmaj7, Bb7sus4 chord progression). • Layer 2 (-14 dBFS): Tactile Mechanical Keyboard ASMR typing sounds matched to code generation cadence. • Layer 3 (-28 dBFS): Brownian noise and gentle rain texture masking room distractions. • Layer 4 (-8 dBFS): 528Hz Solfeggio resonant chime marking focus and break boundaries. • Sidechain Dynamics: Ambient pads duck by -4 dB for 3 seconds during transition chimes. • Headroom Guard: True peak master bus under 0.70 (-3.6 dBFS headroom, -14 LUFS broadcast compliant). 🎨 VISUAL ENGINE & HUD • 4K60 Ultra HD (3840x2160 at 60fps) long-form composition rendered with Remotion v4. • JetBrains Mono monospace typography with ligatures and tabular numbers. • Shiki AST tokenization for zero-latency syntax highlighting in Nord Ice theme. • Analytical SVG circular Pomodoro progress ring. • Dynamic live Lines-Of-Code (LOC) counter with elastic spring pulse. • Break phase payoff view featuring the autonomous 2.5D raycaster exploration bot. 🛠️ TECH STACK • Remotion v4 (video generation as code) • React 19 / TypeScript 5.8 • HTML5 Canvas 2D • Shiki Syntax Tokenizer & Tailwind CSS #pomodoro #studywithme #coding #typescript #raycaster #wolfenstein3d #lofi #asmr #deepwork #developer