What change should be made to the player's torch script to ensure it casts light and shadows?

To ensure that the player's torch casts both light and shadows effectively, setting the torch type to a Point light is the correct choice. A Point light emits light in all directions from a single point, which simulates a realistic light source, akin to how a torch would work in a 3D environment. It can illuminate surroundings dynamically, allowing for a more engaging gameplay experience as it interacts properly with other objects in the scene.

This option is particularly effective for achieving a wider range of illumination as well as appropriate shading effects on surfaces nearby. Point lights can cast shadows when the shadow settings are correctly configured, thus enhancing the realism of the lighting in the game.

While making adjustments to the range of the light or changing the shadows type might enhance certain aspects of illumination or shadow quality, those changes alone would not ensure the torch would function as intended in casting light and shadows effectively throughout the environment. Setting the torch to a Point light is, therefore, the essential choice for achieving the desired outcome.