105 lines
3.7 KiB
Rust
105 lines
3.7 KiB
Rust
use super::{gamelog, CombatStats, Name, ParticleBuilder, Position, SufferDamage, WantsToMelee};
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use specs::prelude::*;
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pub struct MeleeCombatSystem {}
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impl<'a> System<'a> for MeleeCombatSystem {
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type SystemData = (
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Entities<'a>,
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ReadExpect<'a, Entity>,
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WriteStorage<'a, WantsToMelee>,
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ReadStorage<'a, Name>,
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ReadStorage<'a, CombatStats>,
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WriteStorage<'a, SufferDamage>,
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WriteExpect<'a, ParticleBuilder>,
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ReadStorage<'a, Position>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (
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entities,
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player_entity,
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mut wants_melee,
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names,
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combat_stats,
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mut inflict_damage,
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mut particle_builder,
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positions,
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) = data;
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for (entity, wants_melee, name, stats) in (&entities, &wants_melee, &names, &combat_stats).join() {
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if stats.hp <= 0 {
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break;
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}
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let target_stats = combat_stats.get(wants_melee.target).unwrap();
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if target_stats.hp <= 0 {
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break;
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}
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let target_name = names.get(wants_melee.target).unwrap();
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let pos = positions.get(wants_melee.target);
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if let Some(pos) = pos {
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particle_builder.request(
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pos.x,
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pos.y,
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rltk::RGB::named(rltk::ORANGE),
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rltk::RGB::named(rltk::BLACK),
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rltk::to_cp437('‼'),
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150.0,
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);
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}
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let damage = i32::max(0, stats.power - target_stats.defence);
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if damage == 0 {
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if entity == *player_entity {
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gamelog::Logger::new() // You miss.
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.append("You miss.")
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.log();
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} else if wants_melee.target == *player_entity {
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gamelog::Logger::new() // <name> misses!
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.append("The")
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.npc_name(&name.name)
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.colour(rltk::WHITE)
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.append("misses!")
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.log();
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} else {
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gamelog::Logger::new() // <name> misses the <target>.
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.append("The")
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.npc_name(&name.name)
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.colour(rltk::WHITE)
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.append("misses the")
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.npc_name_n(&target_name.name)
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.period()
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.log();
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}
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} else {
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if entity == *player_entity {
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gamelog::Logger::new() // You hit the <name>.
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.append("You hit the")
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.npc_name_n(&target_name.name)
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.period()
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.log();
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} else if wants_melee.target == *player_entity {
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gamelog::Logger::new() // <name> hits you!
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.append("The")
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.npc_name(&name.name)
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.colour(rltk::WHITE)
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.append("hits you!")
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.log();
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} else {
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gamelog::Logger::new() // <name> misses the <target>.
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.append("The")
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.npc_name(&name.name)
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.colour(rltk::WHITE)
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.append("hits the")
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.npc_name_n(&target_name.name)
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.period()
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.log();
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}
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SufferDamage::new_damage(&mut inflict_damage, wants_melee.target, damage);
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}
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}
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wants_melee.clear();
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}
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}
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