CoffeeTime — James Liu

01 · Game loop

Deliver coffee, score points, avoid the bosses.

CoffeeTime reframes a retro maze-game structure around an office. The player collects and delivers coffee to coworkers while evading bosses who can end the run.

The compact premise keeps the rules immediately readable while leaving room for score routing, risk management, and input mechanics designed specifically for mobile play.

Portrait mobile gameplay from CoffeeTime with score, health, and office maze — The office maze, delivery targets, score, and remaining health share one compact screen.

CoffeeTime game-over screen after the player is fired — Failure resolves quickly and clearly into a restartable arcade loop.

02 · Touch interaction

One interaction path supports both desktop testing and mobile play.

Unity's input system identifies the active pointer, converts screen coordinates into world space, and performs a 2D overlap check. Tapping an enemy while carrying coffee consumes the item and briefly stalls the threat.

Pointer abstraction keeps mouse-based iteration available
World-space overlap makes tap targets part of gameplay logic
Coffee doubles as an objective and a limited defensive resource

03 · Motion control

Physical device tilt becomes an arcade control surface.

Gyroscope, attitude, and gravity sensors feed a calibrated movement vector. The system maps real-world device rotation into responsive movement and applies axis-specific scaling so the feel can be tuned without changing the core controller.