use galactica_content::{Content, SystemHandle};
use galactica_playeragent::PlayerAgent;
use galactica_system::phys::{ParticleBuilder, PhysSim};
use galactica_util::timing::Timing;
use nalgebra::Vector2;

/// Bundles parameters passed to a single call to GPUState::render
pub struct RenderInput<'a> {
	/// Camera position, in world units
	pub camera_pos: Vector2<f32>,

	/// Player ship data
	pub player: &'a PlayerAgent,

	/// The system we're currently in
	pub current_system: SystemHandle,

	/// Height of screen, in world units
	pub camera_zoom: f32,

	/// The world state to render
	pub systemsim: &'a PhysSim,

	// TODO: handle overflow. is it a problem?
	/// The current time, in seconds
	pub current_time: f32,

	/// Game content
	pub ct: &'a Content,

	/// Particles to spawn during this frame
	pub particles: &'a Vec<ParticleBuilder>,

	/// Time we spent in each part of the game loop
	pub timing: Timing,
}