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Shoot System

Source: client/engine/systems/SystemsFunctions/ShootPlayerSystem.cpp

Purpose: Handle player shooting mechanics and spawn projectile entities.

Components used:

  • Transform
  • Inputs
  • PlayerTag

Behavior​

  • For each player, decrement shoot_cooldown using game_world.last_delta_.
  • If shoot input is active and cooldown elapsed, create a projectile via CreateProjectile and reset cooldown to shoot_cooldown_max.
  • CreateProjectile adds Transform, Drawable, AnimatedSprite, and Projectile components to the new entity.

Main signature​

void ShootPlayerSystem(Eng::registry &reg, GameWorld &game_world,
    Eng::sparse_array<Com::Transform> &transforms,
    Eng::sparse_array<Com::Inputs> const &inputs,
    Eng::sparse_array<Com::PlayerTag> &player_tags);

Notes​

  • Projectile defaults (speed, sprite, etc.) are hard-coded in CreateProjectile.
  • CreateProjectile uses reg.SpawnEntity() then reg.AddComponent<...>.