C64 BASIC: Game Map Overhead Camera View

Original: C64 Basic: Game Map Overhead “Camera View”

A C64 BASIC tutorial for building an Ultima-style overhead map viewport.

The article explains how to separate world coordinates from a visible viewport in a C64 BASIC game. It starts with a naive 11-by-11 camera slice rendered from a larger map, keeping the player centered where possible. It then improves performance with lookup tables, a flattened map array, loop unrolling, and notes on further retro-system optimizations.

摘要由 AI 整理,以原文為準。