to increase realism, you should include light sources and apply shadow mapping [Shading Mapping Practical]. The shadows will probably look pretty rough at first, so add filtering (like PCF) [Shadow Mapping Practical] to make them look better. Implement at least one special light source which emits light only inside a cone using a light falloff [Shadow Mapping]. Integrate a mechanism to determine whether a player is receiving light from this cone (i.e., is seen by the monster or in recharge zone) and integrate it in your game.
to increase realism, you should include light sources and apply shadow mapping [Shading Mapping Practical]. The shadows will probably look pretty rough at first, so add filtering (like PCF) [Shadow Mapping Practical] to make them look better. Implement at least one special light source which emits light only inside a cone using a light falloff [Shadow Mapping]. Integrate a mechanism to determine whether a player is receiving light from this cone (i.e., is seen by the monster or in recharge zone) and integrate it in your game.