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Add chapter 2.9

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This commit is contained in:
Kasper Juul Hermansen 2022-01-26 15:42:42 +01:00
parent 1fe967250e
commit bda34abfa3
Signed by: kjuulh
GPG Key ID: 0F95C140730F2F23
11 changed files with 603 additions and 104 deletions
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8
.idea/.gitignore vendored Normal file
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@ -0,0 +1,8 @@
# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

8
.idea/modules.xml Normal file
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@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/roguelike.iml" filepath="$PROJECT_DIR$/.idea/roguelike.iml" />
</modules>
</component>
</project>

11
.idea/roguelike.iml Normal file
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@ -0,0 +1,11 @@
<?xml version="1.0" encoding="UTF-8"?>
<module type="CPP_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
<excludeFolder url="file://$MODULE_DIR$/target" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

6
.idea/vcs.xml Normal file
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@ -0,0 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

32
src/components.rs
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@ -13,6 +13,7 @@ pub struct Renderable {
pub glyph: rltk::FontCharType,
pub fg: RGB,
pub bg: RGB,
pub render_order: i32,
}
#[derive(Component, Debug)]
@ -66,3 +67,34 @@ impl SufferDamage {
}
}
}
#[derive(Component, Debug)]
pub struct Item {}
#[derive(Component, Debug)]
pub struct Potion {
pub heal_amount: i32,
}
#[derive(Component, Debug)]
pub struct InBackpack {
pub owner: Entity,
}
#[derive(Component, Debug, Clone)]
pub struct WantsToPickupItem {
pub collected_by: Entity,
pub item: Entity,
}
#[derive(Component, Debug, Clone)]
pub struct WantsToDrinkPotion {
pub potion: Entity,
}
#[derive(Component, Debug, Clone)]
pub struct WantsToDropItem {
pub item: Entity,
}

148
src/gui.rs
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@ -1,13 +1,14 @@
use rltk::{BTerm, Point, VirtualKeyCode};
use rltk::RGB;
use rltk::Rltk;
use specs::prelude::*;
use crate::{CombatStats, InBackpack, State};
use crate::gamelog::GameLog;
use crate::CombatStats;
use crate::Map;
use crate::Name;
use crate::Player;
use crate::Position;
use rltk::Point;
use rltk::Rltk;
use rltk::RGB;
use specs::prelude::*;
pub fn draw_ui(ecs: &World, ctx: &mut Rltk) {
ctx.draw_box(
@ -150,3 +151,140 @@ fn draw_tooltips(ecs: &World, ctx: &mut Rltk) {
}
}
}
#[derive(PartialEq, Copy, Clone)]
pub enum ItemMenuResult {
Cancel,
NoResponse,
Selected,
}
pub fn show_inventory(gs: &mut State, ctx: &mut Rltk) -> (ItemMenuResult, Option<Entity>) {
let player_entity = gs.ecs.fetch::<Entity>();
let names = gs.ecs.read_storage::<Name>();
let backpack = gs.ecs.read_storage::<InBackpack>();
let entities = gs.ecs.entities();
let inventory = (&backpack, &names)
.join()
.filter(|item| item.0.owner == *player_entity);
let count = inventory.count();
let mut y = (25 - (count / 2)) as i32;
ctx.draw_box(
15,
y - 2,
31,
(count + 3) as i32,
RGB::named(rltk::WHITE),
RGB::named(rltk::BLACK),
);
ctx.print_color(
18,
y - 2,
RGB::named(rltk::YELLOW),
RGB::named(rltk::BLACK),
"Inventory",
);
ctx.print_color(
18,
y + count as i32 + 1,
RGB::named(rltk::YELLOW),
RGB::named(rltk::BLACK),
"ESCAPE to cancel",
);
let mut equippable: Vec<Entity> = Vec::new();
let mut j = 0;
for (entity, _pack, name) in (&entities, &backpack, &names)
.join()
.filter(|item| item.1.owner == *player_entity)
{
ctx.set(
17,
y,
RGB::named(rltk::WHITE),
RGB::named(rltk::BLACK),
rltk::to_cp437('('),
);
ctx.set(
18,
y,
RGB::named(rltk::YELLOW),
RGB::named(rltk::BLACK),
97 + j as rltk::FontCharType,
);
ctx.set(
19,
y,
RGB::named(rltk::WHITE),
RGB::named(rltk::BLACK),
rltk::to_cp437(')'),
);
ctx.print(21, y, &name.name.to_string());
equippable.push(entity);
y += 1;
j += 1;
}
match ctx.key {
None => (ItemMenuResult::NoResponse, None),
Some(key) => {
match key {
VirtualKeyCode::Escape => { (ItemMenuResult::Cancel, None) }
_ => {
let selection = rltk::letter_to_option(key);
if selection > -1 && selection < count as i32 {
return (ItemMenuResult::Selected, Some(equippable[selection as usize]));
}
(ItemMenuResult::NoResponse, None)
}
}
}
}
}
pub fn drop_item_menu(gs: &mut State, ctx: &mut Rltk) -> (ItemMenuResult, Option<Entity>) {
let player_entity = gs.ecs.fetch::<Entity>();
let names = gs.ecs.read_storage::<Name>();
let backpack = gs.ecs.read_storage::<InBackpack>();
let entities = gs.ecs.entities();
let inventory = (&backpack, &names).join().filter(|item| item.0.owner == *player_entity);
let count = inventory.count();
let mut y = (25 - (count / 2)) as i32;
ctx.draw_box(15, y - 2, 31, (count + 3) as i32, RGB::named(rltk::WHITE), RGB::named(rltk::BLACK));
ctx.print_color(18, y - 2, RGB::named(rltk::YELLOW), RGB::named(rltk::BLACK), "Drop Which Item?");
ctx.print_color(18, y + count as i32 + 1, RGB::named(rltk::YELLOW), RGB::named(rltk::BLACK), "ESCAPE to cancel");
let mut equippable: Vec<Entity> = Vec::new();
let mut j = 0;
for (entity, _pack, name) in (&entities, &backpack, &names).join().filter(|item| item.1.owner == *player_entity) {
ctx.set(17, y, RGB::named(rltk::WHITE), RGB::named(rltk::BLACK), rltk::to_cp437('('));
ctx.set(18, y, RGB::named(rltk::YELLOW), RGB::named(rltk::BLACK), 97 + j as rltk::FontCharType);
ctx.set(19, y, RGB::named(rltk::WHITE), RGB::named(rltk::BLACK), rltk::to_cp437(')'));
ctx.print(21, y, &name.name.to_string());
equippable.push(entity);
y += 1;
j += 1;
}
match ctx.key {
None => (ItemMenuResult::NoResponse, None),
Some(key) => {
match key {
VirtualKeyCode::Escape => { (ItemMenuResult::Cancel, None) }
_ => {
let selection = rltk::letter_to_option(key);
if selection > -1 && selection < count as i32 {
return (ItemMenuResult::Selected, Some(equippable[selection as usize]));
}
(ItemMenuResult::NoResponse, None)
}
}
}
}
}

116
src/inventory_system.rs Normal file
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@ -0,0 +1,116 @@
use rltk::Rltk;
use specs::prelude::*;
use crate::{CombatStats, InBackpack, Name, Position, Potion, State, WantsToDrinkPotion, WantsToDropItem, WantsToPickupItem};
use crate::gamelog::GameLog;
use crate::gui::ItemMenuResult;
pub struct ItemCollectionSystem {}
impl<'a> System<'a> for ItemCollectionSystem {
type SystemData = (
ReadExpect<'a, Entity>,
WriteExpect<'a, GameLog>,
WriteStorage<'a, WantsToPickupItem>,
WriteStorage<'a, Position>,
ReadStorage<'a, Name>,
WriteStorage<'a, InBackpack>,
);
fn run(&mut self, data: Self::SystemData) {
let (player_entity, mut gamelog, mut wants_pickup, mut positions, names, mut backpack) =
data;
for pickup in wants_pickup.join() {
positions.remove(pickup.item);
backpack
.insert(
pickup.item,
InBackpack {
owner: pickup.collected_by,
},
)
.expect("Unable to insert backpack entry");
if pickup.collected_by == *player_entity {
gamelog.entries.push(format!(
"You pick up the {}.",
names.get(pickup.item).unwrap().name
))
}
}
wants_pickup.clear();
}
}
pub struct PotionUseSystem {}
impl<'a> System<'a> for PotionUseSystem {
type SystemData = (
ReadExpect<'a, Entity>,
WriteExpect<'a, GameLog>,
Entities<'a>,
WriteStorage<'a, WantsToDrinkPotion>,
ReadStorage<'a, Name>,
ReadStorage<'a, Potion>,
WriteStorage<'a, CombatStats>
);
fn run(&mut self, data: Self::SystemData) {
let (player_entity, mut gamelog, entities, mut wants_drink, names, potions, mut combat_stats) = data;
for (entity, drink, stats) in (&entities, &wants_drink, &mut combat_stats).join() {
let potion = potions.get(drink.potion);
match potion {
None => {}
Some(potion) => {
stats.hp = i32::min(stats.max_hp, stats.hp + potion.heal_amount);
if entity == *player_entity {
gamelog.entries.push(format!("You drink the {}, healing {} hp.", names.get(drink.potion).unwrap().name, potion.heal_amount));
}
entities.delete(drink.potion).expect("Delete failed");
}
}
}
wants_drink.clear();
}
}
pub struct ItemDropSystem {}
impl<'a> System<'a> for ItemDropSystem {
type SystemData = (
ReadExpect<'a, Entity>,
WriteExpect<'a, GameLog>,
Entities<'a>,
WriteStorage<'a, WantsToDropItem>,
ReadStorage<'a, Name>,
WriteStorage<'a, Position>,
WriteStorage<'a, InBackpack>
);
fn run(&mut self, data: Self::SystemData) {
let (player_entity, mut gamelog, entities, mut wants_drop, names, mut positions, mut backpack) = data;
for (entity, to_drop) in (&entities, &wants_drop).join() {
let mut dropper_pos: Position = Position { x: 0, y: 0 };
{
let dropped_pos = positions.get(entity).unwrap();
dropper_pos.x = dropped_pos.x;
dropper_pos.y = dropped_pos.y;
}
positions.insert(to_drop.item, Position { x: dropper_pos.x, y: dropper_pos.y }).expect("Unable to insert position");
backpack.remove(to_drop.item);
if entity == *player_entity {
gamelog.entries.push(format!("You drop the {}.", names.get(to_drop.item).unwrap().name));
}
}
wants_drop.clear();
}
}

164
src/main.rs
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@ -1,3 +1,8 @@
use std::thread::spawn;
use rltk::{GameState, Point, RGB};
use specs::prelude::*;
use components::*;
use damage_system::DamageSystem;
use map::*;
@ -5,21 +10,22 @@ use map_indexing_system::MapIndexingSystem;
use melee_combat_system::MeleeCombatSystem;
use monster_ai_system::*;
use player::*;
use rltk::{GameState, Point, RGB};
use visibility_system::*;
use specs::prelude::*;
use crate::inventory_system::{ItemCollectionSystem, ItemDropSystem, PotionUseSystem};
mod components;
mod damage_system;
mod gamelog;
mod gui;
mod inventory_system;
mod map;
mod map_indexing_system;
mod melee_combat_system;
mod monster_ai_system;
mod player;
mod rect;
mod spawner;
mod visibility_system;
#[derive(PartialEq, Copy, Clone)]
@ -28,6 +34,8 @@ pub enum RunState {
PreRun,
PlayerTurn,
MonsterTurn,
ShowInventory,
ShowDropItem,
}
pub struct State {
@ -51,6 +59,15 @@ impl State {
let mut damagesystem = DamageSystem {};
damagesystem.run_now(&self.ecs);
let mut inventory = ItemCollectionSystem {};
inventory.run_now(&self.ecs);
let mut potions = PotionUseSystem {};
potions.run_now(&self.ecs);
let mut drop_items = ItemDropSystem {};
drop_items.run_now(&self.ecs);
self.ecs.maintain();
}
}
@ -59,6 +76,25 @@ impl GameState for State {
fn tick(&mut self, ctx: &mut rltk::Rltk) {
ctx.cls();
{
draw_map(&self.ecs, ctx);
let positions = self.ecs.read_storage::<Position>();
let renderables = self.ecs.read_storage::<Renderable>();
let map = self.ecs.fetch::<Map>();
let mut data = (&positions, &renderables).join().collect::<Vec<_>>();
data.sort_by(|&a, &b| b.1.render_order.cmp(&a.1.render_order));
for (pos, render) in data.iter() {
let idx = map.xy_idx(pos.x, pos.y);
if map.visible_tiles[idx] {
ctx.set(pos.x, pos.y, render.fg, render.bg, render.glyph)
}
}
gui::draw_ui(&self.ecs, ctx);
}
let mut newrunstate;
{
let runstate = self.ecs.fetch::<RunState>();
@ -79,6 +115,32 @@ impl GameState for State {
self.run_systems();
newrunstate = RunState::AwaitingInput;
}
RunState::ShowInventory => {
let result = gui::show_inventory(self, ctx);
match result.0 {
gui::ItemMenuResult::Cancel => newrunstate = RunState::AwaitingInput,
gui::ItemMenuResult::NoResponse => {}
gui::ItemMenuResult::Selected => {
let item_entity = result.1.unwrap();
let mut intent = self.ecs.write_storage::<WantsToDrinkPotion>();
intent.insert(*self.ecs.fetch::<Entity>(), WantsToDrinkPotion { potion: item_entity }).expect("Unable to insert intent");
newrunstate = RunState::PlayerTurn;
}
}
}
RunState::ShowDropItem => {
let result = gui::drop_item_menu(self, ctx);
match result.0 {
gui::ItemMenuResult::Cancel => newrunstate = RunState::AwaitingInput,
gui::ItemMenuResult::NoResponse => {}
gui::ItemMenuResult::Selected => {
let item_entity = result.1.unwrap();
let mut intent = self.ecs.write_storage::<WantsToDropItem>();
intent.insert(*self.ecs.fetch::<Entity>(), WantsToDropItem { item: item_entity }).expect("Unable to insert intent");
newrunstate = RunState::PlayerTurn;
}
}
}
}
{
@ -86,21 +148,6 @@ impl GameState for State {
*runwriter = newrunstate;
}
damage_system::delete_the_dead(&mut self.ecs);
draw_map(&self.ecs, ctx);
let positions = self.ecs.read_storage::<Position>();
let renderables = self.ecs.read_storage::<Renderable>();
let map = self.ecs.fetch::<Map>();
for (pos, render) in (&positions, &renderables).join() {
let idx = map.xy_idx(pos.x, pos.y);
if map.visible_tiles[idx] {
ctx.set(pos.x, pos.y, render.fg, render.bg, render.glyph)
}
}
gui::draw_ui(&self.ecs, ctx);
}
}
@ -115,6 +162,7 @@ fn main() -> rltk::BError {
let mut gs = State { ecs: World::new() };
gs.ecs.insert(RunState::PreRun);
gs.ecs.insert(rltk::RandomNumberGenerator::new());
gs.ecs.insert(gamelog::GameLog {
entries: vec!["Welcome to Rusty Roguelike".to_string()],
});
@ -129,83 +177,21 @@ fn main() -> rltk::BError {
gs.ecs.register::<CombatStats>();
gs.ecs.register::<WantsToMelee>();
gs.ecs.register::<SufferDamage>();
gs.ecs.register::<Potion>();
gs.ecs.register::<Item>();
gs.ecs.register::<InBackpack>();
gs.ecs.register::<WantsToPickupItem>();
gs.ecs.register::<WantsToDrinkPotion>();
gs.ecs.register::<WantsToDropItem>();
let map = Map::new_map_rooms_and_corridors();
let (player_x, player_y) = map.rooms[0].center();
gs.ecs.insert(Point::new(player_x, player_y));
let player_entity = gs
.ecs
.create_entity()
.with(Position {
x: player_x,
y: player_y,
})
.with(Renderable {
glyph: rltk::to_cp437('@'),
fg: RGB::named(rltk::YELLOW),
bg: RGB::named(rltk::BLACK),
})
.with(Player {})
.with(Viewshed {
visible_tiles: Vec::new(),
range: 8,
dirty: true,
})
.with(Name {
name: "Player".to_string(),
})
.with(CombatStats {
max_hp: 30,
hp: 30,
defense: 2,
power: 5,
})
.build();
let player_entity = spawner::player(&mut gs.ecs, player_x, player_y);
gs.ecs.insert(player_entity);
let mut rng = rltk::RandomNumberGenerator::new();
for (i, room) in map.rooms.iter().skip(1).enumerate() {
let (x, y) = room.center();
let glyph: rltk::FontCharType;
let roll = rng.roll_dice(1, 2);
let name: String;
match roll {
1 => {
glyph = rltk::to_cp437('g');
name = "Goblin".to_string();
}
_ => {
glyph = rltk::to_cp437('o');
name = "Orc".to_string();
}
}
gs.ecs
.create_entity()
.with(Position { x, y })
.with(Renderable {
glyph,
fg: RGB::named(rltk::RED),
bg: RGB::named(rltk::BLACK),
})
.with(Viewshed {
visible_tiles: Vec::new(),
range: 8,
dirty: true,
})
.with(Monster {})
.with(Name {
name: format!("{} #{}", &name, i),
})
.with(BlocksTile {})
.with(CombatStats {
max_hp: 16,
hp: 16,
defense: 1,
power: 4,
})
.build();
for room in map.rooms.iter().skip(1) {
spawner::spawn_room(&mut gs.ecs, room);
}
gs.ecs.insert(map);

8
src/map.rs
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@ -11,9 +11,11 @@ pub enum TileType {
Floor,
}
const MAP_WIDTH: usize = 80;
const MAP_HEIGHT: usize = 43;
const MAP_COUNT: usize = MAP_HEIGHT * MAP_WIDTH;
pub const MAP_WIDTH: usize = 80;
pub const MAP_HEIGHT: usize = 43;
pub const MAP_COUNT: usize = MAP_HEIGHT * MAP_WIDTH;
pub const MAX_MONSTER: i32 = 4;
pub const MAX_ITEMS: i32 = 2;
pub struct Map {
pub tiles: Vec<TileType>,

54
src/player.rs
View File

@ -1,11 +1,14 @@
use crate::{
components::{CombatStats, Player, Position, Viewshed, WantsToMelee},
map::{Map, TileType},
RunState, State,
};
use std::cmp::{max, min};
use rltk::{console, Point, Rltk, VirtualKeyCode};
use specs::prelude::*;
use std::cmp::{max, min};
use crate::{
components::{CombatStats, Player, Position, Viewshed, WantsToMelee},
Item,
map::{Map, TileType}, RunState, State, WantsToPickupItem,
};
use crate::gamelog::GameLog;
pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) {
let mut positions = ecs.write_storage::<Position>();
@ -17,7 +20,7 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) {
let map = ecs.fetch::<Map>();
for (entity, _player, pos, viewshed) in
(&entities, &mut players, &mut positions, &mut viewsheds).join()
(&entities, &mut players, &mut positions, &mut viewsheds).join()
{
let destination_idx = map.xy_idx(pos.x + delta_x, pos.y + delta_y);
@ -47,6 +50,40 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) {
}
}
fn get_item(ecs: &mut World) {
let player_pos = ecs.fetch::<Point>();
let player_entity = ecs.fetch::<Entity>();
let entities = ecs.entities();
let items = ecs.read_storage::<Item>();
let positions = ecs.read_storage::<Position>();
let mut gamelog = ecs.fetch_mut::<GameLog>();
let mut target_item: Option<Entity> = None;
for (item_entity, _item, position) in (&entities, &items, &positions).join() {
if position.x == player_pos.x && position.y == player_pos.y {
target_item = Some(item_entity);
}
}
match target_item {
None => gamelog
.entries
.push("There is nothing here to pick up.".to_string()),
Some(item) => {
let mut pickup = ecs.write_storage::<WantsToPickupItem>();
pickup
.insert(
*player_entity,
WantsToPickupItem {
collected_by: *player_entity,
item,
},
)
.expect("Unable to insert want to pickup");
}
}
}
pub fn player_input(gs: &mut State, ctx: &mut Rltk) -> RunState {
match ctx.key {
None => return RunState::AwaitingInput,
@ -59,6 +96,9 @@ pub fn player_input(gs: &mut State, ctx: &mut Rltk) -> RunState {
VirtualKeyCode::U => try_move_player(-1, -1, &mut gs.ecs),
VirtualKeyCode::N => try_move_player(1, 1, &mut gs.ecs),
VirtualKeyCode::B => try_move_player(-1, 1, &mut gs.ecs),
VirtualKeyCode::G => get_item(&mut gs.ecs),
VirtualKeyCode::I => return RunState::ShowInventory,
VirtualKeyCode::D => return RunState::ShowDropItem,
_ => return RunState::AwaitingInput,
},
}

152
src/spawner.rs Normal file
View File

@ -0,0 +1,152 @@
use rltk::{FontCharType, RandomNumberGenerator, RGB};
use specs::prelude::*;
use crate::{
BlocksTile, CombatStats, Item, MAP_WIDTH, MAX_ITEMS, MAX_MONSTER, Monster, Name, Player, Position,
Potion, Renderable, Viewshed,
};
use crate::rect::Rect;
pub fn player(ecs: &mut World, player_x: i32, player_y: i32) -> Entity {
ecs.create_entity()
.with(Position {
x: player_x,
y: player_y,
})
.with(Renderable {
glyph: rltk::to_cp437('@'),
fg: RGB::named(rltk::YELLOW),
bg: RGB::named(rltk::BLACK),
render_order: 0,
})
.with(Player {})
.with(Viewshed {
visible_tiles: Vec::new(),
range: 8,
dirty: true,
})
.with(Name {
name: "Player".to_string(),
})
.with(CombatStats {
max_hp: 30,
hp: 30,
defense: 2,
power: 5,
})
.build()
}
pub fn random_monster(ecs: &mut World, x: i32, y: i32) {
let roll: i32;
{
let mut rng = ecs.write_resource::<RandomNumberGenerator>();
roll = rng.roll_dice(1, 2);
}
match roll {
1 => orc(ecs, x, y),
_ => goblin(ecs, x, y),
}
}
fn orc(ecs: &mut World, x: i32, y: i32) {
monster(ecs, x, y, rltk::to_cp437('o'), "Orc")
}
fn goblin(ecs: &mut World, x: i32, y: i32) {
monster(ecs, x, y, rltk::to_cp437('g'), "Goblin")
}
fn monster<S: ToString>(ecs: &mut World, x: i32, y: i32, glyph: FontCharType, name: S) {
ecs.create_entity()
.with(Position { x, y })
.with(Renderable {
glyph,
fg: RGB::named(rltk::RED),
bg: RGB::named(rltk::BLACK),
render_order: 1,
})
.with(Viewshed {
visible_tiles: Vec::new(),
range: 8,
dirty: true,
})
.with(Monster {})
.with(Name {
name: name.to_string(),
})
.with(BlocksTile {})
.with(CombatStats {
max_hp: 16,
hp: 16,
defense: 1,
power: 4,
})
.build();
}
pub fn spawn_room(ecs: &mut World, room: &Rect) {
let mut monster_spawn_points: Vec<usize> = Vec::new();
let mut item_spawn_points: Vec<usize> = Vec::new();
{
let mut rng = ecs.write_resource::<RandomNumberGenerator>();
let num_monsters = rng.roll_dice(1, MAX_MONSTER + 2) - 3;
let num_items = rng.roll_dice(1, MAX_ITEMS + 2) - 3;
for _i in 0..num_monsters {
let mut added = false;
while !added {
let x = (room.x1 + rng.roll_dice(1, i32::abs(room.x2 - room.x1))) as usize;
let y = (room.y1 + rng.roll_dice(1, i32::abs(room.y2 - room.y1))) as usize;
let idx = (y * MAP_WIDTH) + x;
if !monster_spawn_points.contains(&idx) {
monster_spawn_points.push(idx);
added = true;
}
}
}
for _i in 0..num_items {
let mut added = false;
while !added {
let x = (room.x1 + rng.roll_dice(1, i32::abs(room.x2 - room.x1))) as usize;
let y = (room.y1 + rng.roll_dice(1, i32::abs(room.y2 - room.y1))) as usize;
let idx = (y * MAP_WIDTH) + x;
if !item_spawn_points.contains(&idx) {
item_spawn_points.push(idx);
added = true;
}
}
}
}
for idx in monster_spawn_points.iter() {
let x = *idx % MAP_WIDTH;
let y = *idx / MAP_WIDTH;
random_monster(ecs, x as i32, y as i32);
}
for idx in item_spawn_points.iter() {
let x = *idx % MAP_WIDTH;
let y = *idx / MAP_WIDTH;
health_potion(ecs, x as i32, y as i32);
}
}
pub fn health_potion(ecs: &mut World, x: i32, y: i32) {
ecs.create_entity()
.with(Position { x, y })
.with(Renderable {
glyph: rltk::to_cp437('i'),
fg: RGB::named(rltk::MAGENTA),
bg: RGB::named(rltk::BLACK),
render_order: 2,
})
.with(Name {
name: "Health Potion".to_string(),
})
.with(Item {})
.with(Potion { heal_amount: 8 })
.build();
}