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Game Devlog: Simplifying Car Physics for an Arcade Racer

2025-07-29

This devlog details the author's journey in simplifying car physics for their racing game. Initially attempting a realistic physics model proved too complex. The author switched to a simplified model, using basic force equations to simulate acceleration, braking, steering, and friction, fine-tuning the experience through coefficient adjustments. Substepping was implemented for increased accuracy. The final result is a controllable car model with a slide effect, further enhanced by an accumulator to simulate grip loss at varying turn intensities.

Programming Vehicles in Games: From Concept to Code

2025-07-26

This article dives deep into the principles and practice of programming realistic vehicle behavior in games. The author recounts their journey, starting with a simple Newtonian model and iteratively refining it to achieve a more authentic simulation. The core components—engine, tires, and chassis—are explained in detail, including tire modeling using longitudinal and lateral forces, the Pacejka magic formula, and the interaction between these forces. A pseudocode example demonstrates integration into a game physics engine. The author stresses balancing realistic physics with the desired gameplay experience.