Function default

default(
    ecs: default,
    dt: number,
    options: {
        keybinds: {
            down: string;
            jump: string;
            left: string;
            right: string;
            up: string;
        };
        variables: {
            coinValue: number;
            gravity: number;
            jump: number;
            lives: number;
            speed: number;
        };
    },
): void
ECS system that applies gravity and vertical physics updates.

Updates vertical velocity for dynamic rigid bodies.
Parameters
- ecs: default
  The ECS world instance.
- dt: number
  Delta time (in seconds).
- options: {
      keybinds: {
          down: string;
          jump: string;
          left: string;
          right: string;
          up: string;
      };
      variables: {
          coinValue: number;
          gravity: number;
          jump: number;
          lives: number;
          speed: number;
      };
  }
  Game configuration containing gravity settings.
Returns void
Remarks
- Only affects entities with transform and rigidbody.
- Applies gravity scaled by gravityScale.
- Clamps fall speed to maxFallSpeed.
- Defined in game/systems/physicsSystem.ts:20