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33 lines
1.2 KiB
Rust
33 lines
1.2 KiB
Rust
use common::comp::{Player, Pos, Waypoint, WaypointArea};
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use specs::{Entities, Join, ReadStorage, System, WriteStorage};
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/// This system will handle loading generated chunks and unloading uneeded chunks.
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/// 1. Inserts newly generated chunks into the TerrainGrid
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/// 2. Sends new chunks to neaby clients
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/// 3. Handles the chunk's supplement (e.g. npcs)
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/// 4. Removes chunks outside the range of players
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pub struct Sys;
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impl<'a> System<'a> for Sys {
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type SystemData = (
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Entities<'a>,
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ReadStorage<'a, Pos>,
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ReadStorage<'a, Player>,
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ReadStorage<'a, WaypointArea>,
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WriteStorage<'a, Waypoint>,
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);
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fn run(
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&mut self,
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(entities, positions, players, waypoint_areas, mut waypoints): Self::SystemData,
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) {
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for (entity, player_pos, _) in (&entities, &positions, &players).join() {
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for (waypoint_pos, waypoint_area) in (&positions, &waypoint_areas).join() {
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if player_pos.0.distance_squared(waypoint_pos.0) < waypoint_area.radius().powf(2.0)
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{
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let _ = waypoints.insert(entity, Waypoint::new(player_pos.0));
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}
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}
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}
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}
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}
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