80 lines
2.0 KiB
Rust
80 lines
2.0 KiB
Rust
use crate::components::*;
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use specs::error::NoError;
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use specs::prelude::*;
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use specs::saveload::{
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DeserializeComponents, MarkedBuilder, SerializeComponents, SimpleMarker, SimpleMarkerAllocator,
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};
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use std::fs;
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use std::fs::File;
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use std::path::Path;
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macro_rules! serialize_individually {
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($ecs:expr, $ser:expr, $data:expr, $( $type:ty),*) => {
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$(
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SerializeComponents::<NoError, SimpleMarker<SerializeMe>>::serialize(
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&( $ecs.read_storage::<$type>(), ),
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&$data.0,
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&$data.1,
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&mut $ser,
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)
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.unwrap();
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)*
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};
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}
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pub fn save_game(ecs: &mut World) {
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// Create helper
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let mapcopy = ecs.get_mut::<crate::map::Map>().unwrap().clone();
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let savehelper = ecs
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.create_entity()
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.with(SerializationHelper { map: mapcopy })
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.marked::<SimpleMarker<SerializeMe>>()
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.build();
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// Actually serialize
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{
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let data = (
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ecs.entities(),
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ecs.read_storage::<SimpleMarker<SerializeMe>>(),
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);
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let writer = File::create("./savegame.json").unwrap();
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let mut serializer = serde_json::Serializer::new(writer);
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serialize_individually!(
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ecs,
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serializer,
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data,
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Position,
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Renderable,
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Player,
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Viewshed,
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Monster,
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Name,
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BlocksTile,
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CombatStats,
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SufferDamage,
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WantsToMelee,
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Item,
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Consumable,
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Ranged,
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InflictsDamage,
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AreaOfEffect,
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Confusion,
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ProvidesHealing,
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InBackpack,
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WantsToPickupItem,
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WantsToUseItem,
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WantsToDropItem,
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SerializationHelper
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);
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}
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// Clean up
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ecs.delete_entity(savehelper)
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.expect("Failed to clean up savehelper component");
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}
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pub fn does_save_exist() -> bool {
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Path::new("./savegame.json").exists()
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}
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