92 lines
3.5 KiB
Rust
92 lines
3.5 KiB
Rust
use super::{
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gamelog, Confusion, EntityMoved, EntryTrigger, Hidden, InflictsDamage, Map, Name, ParticleBuilder, Position,
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SingleActivation, SufferDamage,
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};
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use specs::prelude::*;
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pub struct TriggerSystem {}
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impl<'a> System<'a> for TriggerSystem {
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#[allow(clippy::type_complexity)]
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type SystemData = (
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ReadExpect<'a, Map>,
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WriteStorage<'a, EntityMoved>,
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ReadStorage<'a, Position>,
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ReadStorage<'a, EntryTrigger>,
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ReadStorage<'a, InflictsDamage>,
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WriteStorage<'a, Confusion>,
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WriteStorage<'a, SufferDamage>,
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WriteStorage<'a, Hidden>,
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ReadStorage<'a, SingleActivation>,
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ReadStorage<'a, Name>,
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WriteExpect<'a, ParticleBuilder>,
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Entities<'a>,
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WriteExpect<'a, rltk::RandomNumberGenerator>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (
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map,
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mut entity_moved,
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position,
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entry_trigger,
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inflicts_damage,
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mut confusion,
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mut inflict_damage,
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mut hidden,
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single_activation,
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names,
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mut particle_builder,
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entities,
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mut rng,
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) = data;
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// Iterate entities that moved, and their final position
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let mut remove_entities: Vec<Entity> = Vec::new();
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for (entity, mut _entity_moved, pos) in (&entities, &mut entity_moved, &position).join() {
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let idx = map.xy_idx(pos.x, pos.y);
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for entity_id in map.tile_content[idx].iter() {
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if entity != *entity_id {
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let maybe_trigger = entry_trigger.get(*entity_id);
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match maybe_trigger {
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None => {}
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Some(_trigger) => {
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// Something on this pos had a trigger
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let name = names.get(*entity_id);
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hidden.remove(*entity_id);
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if let Some(name) = name {
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particle_builder.trap_triggered(pos.x, pos.y);
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gamelog::Logger::new().item_name(&name.name).append("triggers!").log();
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}
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let damage = inflicts_damage.get(*entity_id);
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if let Some(damage) = damage {
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let damage_roll = rng.roll_dice(damage.n_dice, damage.sides) + damage.modifier;
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particle_builder.damage_taken(pos.x, pos.y);
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SufferDamage::new_damage(&mut inflict_damage, entity, damage_roll, false);
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}
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let confuses = confusion.get(*entity_id);
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if let Some(confuses) = confuses {
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confusion
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.insert(entity, Confusion { turns: confuses.turns })
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.expect("Unable to insert confusion");
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}
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let sa = single_activation.get(*entity_id);
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if let Some(_sa) = sa {
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remove_entities.push(*entity_id);
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}
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}
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}
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}
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}
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}
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for trap in remove_entities.iter() {
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entities.delete(*trap).expect("Unable to delete trap");
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}
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entity_moved.clear();
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}
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}
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