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doukutsu-rs/src/npc/mod.rs
2020-10-30 11:24:55 +01:00

770 lines
24 KiB
Rust

use std::cell::RefCell;
use std::collections::{BTreeSet, HashMap};
use std::io;
use std::io::Cursor;
use bitvec::vec::BitVec;
use byteorder::{LE, ReadBytesExt};
use itertools::Itertools;
use crate::bitfield;
use crate::caret::CaretType;
use crate::common::{Condition, fix9_scale, Rect};
use crate::common::Direction;
use crate::common::Flag;
use crate::entity::GameEntity;
use crate::frame::Frame;
use crate::ggez::{Context, GameResult};
use crate::map::NPCData;
use crate::npc::boss::BossNPCMap;
use crate::physics::PhysicalEntity;
use crate::player::Player;
use crate::shared_game_state::SharedGameState;
use crate::stage::Stage;
use crate::str;
pub mod balrog;
pub mod boss;
pub mod characters;
pub mod egg_corridor;
pub mod first_cave;
pub mod grasstown;
pub mod igor;
pub mod maze;
pub mod mimiga_village;
pub mod misc;
pub mod misery;
pub mod pickups;
pub mod sand_zone;
pub mod sue;
pub mod toroko;
pub mod weapon_trail;
bitfield! {
#[derive(Clone, Copy)]
pub struct NPCFlag(u16);
impl Debug;
pub solid_soft, set_solid_soft: 0; // 0x01
pub ignore_tile_44, set_ignore_tile_44: 1; // 0x02
pub invulnerable, set_invulnerable: 2; // 0x04
pub ignore_solidity, set_ignore_solidity: 3; // 0x08
pub bouncy, set_bouncy: 4; // 0x10
pub shootable, set_shootable: 5; // 0x20
pub solid_hard, set_solid_hard: 6; // 0x40
pub rear_and_top_not_hurt, set_rear_and_top_not_hurt: 7; // 0x80
pub event_when_touched, set_event_when_touched: 8; // 0x100
pub event_when_killed, set_event_when_killed: 9; // 0x200
pub flag_x400, set_flag_x400: 10; // 0x400
pub appear_when_flag_set, set_appear_when_flag_set: 11; // 0x800
pub spawn_facing_right, set_spawn_facing_right: 12; // 0x1000
pub interactable, set_interactable: 13; // 0x2000
pub hide_unless_flag_set, set_hide_unless_flag_set: 14; // 0x4000
pub show_damage, set_show_damage: 15; // 0x8000
}
#[derive(Debug, Clone, Copy)]
pub struct NPC {
pub id: u16,
pub npc_type: u16,
pub x: isize,
pub y: isize,
pub vel_x: isize,
pub vel_y: isize,
pub target_x: isize,
pub target_y: isize,
pub exp: u16,
pub size: u8,
pub shock: u16,
pub life: u16,
pub damage: u16,
pub cond: Condition,
pub flags: Flag,
pub npc_flags: NPCFlag,
pub direction: Direction,
pub display_bounds: Rect<usize>,
pub hit_bounds: Rect<usize>,
pub parent_id: u16,
pub action_num: u16,
pub anim_num: u16,
pub flag_num: u16,
pub event_num: u16,
pub action_counter: u16,
pub action_counter2: u16,
pub anim_counter: u16,
pub anim_rect: Rect<usize>,
}
static PARTICLE_NPCS: [u16; 8] = [1, 4, 73, 86, 87, 129, 199, 355];
impl NPC {
pub fn get_start_index(&self) -> u16 {
if PARTICLE_NPCS.contains(&self.npc_type) {
0x100
} else {
0
}
}
pub fn empty() -> NPC {
NPC {
id: 0,
npc_type: 0,
x: 0,
y: 0,
vel_x: 0,
vel_y: 0,
target_x: 0,
target_y: 0,
exp: 0,
size: 0,
shock: 0,
life: 0,
damage: 0,
cond: Condition(0),
flags: Flag(0),
npc_flags: NPCFlag(0),
direction: Direction::Left,
display_bounds: Rect { left: 0, top: 0, right: 0, bottom: 0 },
hit_bounds: Rect { left: 0, top: 0, right: 0, bottom: 0 },
parent_id: 0,
action_num: 0,
anim_num: 0,
flag_num: 0,
event_num: 0,
action_counter: 0,
action_counter2: 0,
anim_counter: 0,
anim_rect: Rect { left: 0, top: 0, right: 0, bottom: 0 },
}
}
}
impl GameEntity<(&mut Player, &HashMap<u16, RefCell<NPC>>, &mut Stage)> for NPC {
fn tick(&mut self, state: &mut SharedGameState, (player, map, stage): (&mut Player, &HashMap<u16, RefCell<NPC>>, &mut Stage)) -> GameResult {
match self.npc_type {
0 => self.tick_n000_null(),
1 => self.tick_n001_experience(state),
2 => self.tick_n002_behemoth(state),
3 => self.tick_n003_dead_enemy(),
4 => self.tick_n004_smoke(state),
5 => self.tick_n005_green_critter(state, player),
6 => self.tick_n006_green_beetle(state),
7 => self.tick_n007_basil(state, player),
8 => self.tick_n008_blue_beetle(state, player),
9 => self.tick_n009_balrog_falling_in(state),
10 => self.tick_n010_balrog_shooting(state, player),
11 => self.tick_n011_balrogs_projectile(state),
12 => self.tick_n012_balrog_cutscene(state, player, map, stage),
13 => self.tick_n013_forcefield(state),
14 => self.tick_n014_key(state),
15 => self.tick_n015_chest_closed(state),
16 => self.tick_n016_save_point(state),
17 => self.tick_n017_health_refill(state),
18 => self.tick_n018_door(state),
19 => self.tick_n019_balrog_bust_in(state),
20 => self.tick_n020_computer(state),
21 => self.tick_n021_chest_open(state),
22 => self.tick_n022_teleporter(state),
27 => self.tick_n027_death_trap(state),
30 => self.tick_n030_gunsmith(state),
32 => self.tick_n032_life_capsule(state),
34 => self.tick_n034_bed(state),
37 => self.tick_n037_sign(state),
38 => self.tick_n038_fireplace(state),
39 => self.tick_n039_save_sign(state),
41 => self.tick_n041_busted_door(state),
42 => self.tick_n042_sue(state, player, map),
43 => self.tick_n043_chalkboard(state),
46 => self.tick_n046_hv_trigger(state, player),
52 => self.tick_n052_sitting_blue_robot(state),
55 => self.tick_n055_kazuma(state),
59 => self.tick_n059_eye_door(state, player),
60 => self.tick_n060_toroko(state, player),
61 => self.tick_n061_king(state),
62 => self.tick_n062_kazuma_computer(state),
63 => self.tick_n063_toroko_stick(state),
64 => self.tick_n064_first_cave_critter(state, player),
65 => self.tick_n065_first_cave_bat(state, player),
66 => self.tick_n066_misery_bubble(state, map),
67 => self.tick_n067_misery_floating(state),
68 => self.tick_n068_balrog_running(state, player),
69 => self.tick_n069_pignon(state),
70 => self.tick_n070_sparkle(state),
71 => self.tick_n071_chinfish(state),
72 => self.tick_n072_sprinkler(state, player),
73 => self.tick_n073_water_droplet(state, stage),
74 => self.tick_n074_jack(state),
75 => self.tick_n075_kanpachi(state, player),
76 => self.tick_n076_flowers(),
77 => self.tick_n077_yamashita(state),
78 => self.tick_n078_pot(state),
79 => self.tick_n079_mahin(state, player),
80 => self.tick_n080_gravekeeper(state, player),
81 => self.tick_n081_giant_pignon(state, player),
82 => self.tick_n082_misery_standing(state),
83 => self.tick_n083_igor_cutscene(state),
84 => self.tick_n084_basu_projectile(state),
85 => self.tick_n085_terminal(state, player),
86 => self.tick_n086_missile_pickup(state),
87 => self.tick_n087_heart_pickup(state),
91 => self.tick_n091_mimiga_cage(state),
96 => self.tick_n096_fan_left(state, player),
97 => self.tick_n097_fan_up(state, player),
98 => self.tick_n098_fan_right(state, player),
99 => self.tick_n099_fan_down(state, player),
129 => self.tick_n129_fireball_snake_trail(state),
149 => self.tick_n149_horizontal_moving_block(state, player),
157 => self.tick_n157_vertical_moving_block(state, player),
199 => self.tick_n199_wind_particles(state),
211 => self.tick_n211_small_spikes(state),
_ => Ok(()),
}?;
if self.shock > 0 {
self.shock -= 1;
}
Ok(())
}
fn draw(&self, state: &mut SharedGameState, ctx: &mut Context, frame: &Frame) -> GameResult {
if !self.cond.alive() || self.cond.hidden() {
return Ok(());
}
let batch = state.texture_set.get_or_load_batch(ctx, &state.constants, state.npc_table.get_texture_name(self.npc_type))?;
let scale = state.scale;
let off_x = if self.direction == Direction::Left { self.display_bounds.left } else { self.display_bounds.right } as isize;
let shock = if self.shock > 0 {
(2 * ((self.shock as isize / 2) % 2) - 1) as f32
} else { 0.0 };
batch.add_rect(
fix9_scale(self.x - off_x - frame.x, scale) + shock,
fix9_scale(self.y - self.display_bounds.top as isize - frame.y, scale),
&self.anim_rect,
);
batch.draw(ctx)?;
Ok(())
}
}
impl PhysicalEntity for NPC {
#[inline(always)]
fn x(&self) -> isize { self.x }
#[inline(always)]
fn y(&self) -> isize { self.y }
#[inline(always)]
fn vel_x(&self) -> isize { self.vel_x }
#[inline(always)]
fn vel_y(&self) -> isize { self.vel_y }
#[inline(always)]
fn hit_rect_size(&self) -> usize { if self.size >= 3 { 3 } else { 2 } }
#[inline(always)]
fn offset_x(&self) -> isize { if self.size >= 3 { -0x1000 } else { 0 } }
#[inline(always)]
fn offset_y(&self) -> isize { if self.size >= 3 { -0x1000 } else { 0 } }
#[inline(always)]
fn hit_bounds(&self) -> &Rect<usize> {
&self.hit_bounds
}
#[inline(always)]
fn set_x(&mut self, x: isize) {
self.x = x;
}
#[inline(always)]
fn set_y(&mut self, y: isize) {
self.y = y;
}
#[inline(always)]
fn set_vel_x(&mut self, vel_x: isize) {
self.vel_x = vel_x;
}
#[inline(always)]
fn set_vel_y(&mut self, vel_y: isize) {
self.vel_y = vel_y;
}
#[inline(always)]
fn cond(&mut self) -> &mut Condition {
&mut self.cond
}
#[inline(always)]
fn flags(&mut self) -> &mut Flag {
&mut self.flags
}
#[inline(always)]
fn direction(&self) -> Direction {
self.direction
}
#[inline(always)]
fn is_player(&self) -> bool {
false
}
#[inline(always)]
fn ignore_tile_44(&self) -> bool {
self.npc_flags.ignore_tile_44()
}
}
pub struct NPCMap {
/// A sorted pool of used IDs to used to iterate over NPCs in order, as original game does.
pub npc_ids: BTreeSet<u16>,
/// Do not iterate over this directly outside render pipeline.
pub npcs: HashMap<u16, RefCell<NPC>>,
/// NPCMap but for bosses and of static size.
pub boss_map: BossNPCMap,
}
impl NPCMap {
#[allow(clippy::new_without_default)]
pub fn new() -> NPCMap {
NPCMap {
npc_ids: BTreeSet::new(),
npcs: HashMap::with_capacity(256),
boss_map: BossNPCMap::new(),
}
}
pub fn clear(&mut self) {
self.npc_ids.clear();
self.npcs.clear();
}
pub fn create_npc_from_data(&mut self, table: &NPCTable, data: &NPCData) -> &mut NPC {
let display_bounds = table.get_display_bounds(data.npc_type);
let hit_bounds = table.get_hit_bounds(data.npc_type);
let (size, life, damage, flags, exp) = match table.get_entry(data.npc_type) {
Some(entry) => { (entry.size, entry.life, entry.damage as u16, entry.npc_flags, entry.experience as u16) }
None => { (1, 0, 0, NPCFlag(0), 0) }
};
let npc_flags = NPCFlag(data.flags | flags.0);
let npc = NPC {
id: data.id,
npc_type: data.npc_type,
x: data.x as isize * 16 * 0x200,
y: data.y as isize * 16 * 0x200,
vel_x: 0,
vel_y: 0,
target_x: 0,
target_y: 0,
action_num: 0,
anim_num: 0,
flag_num: data.flag_num,
event_num: data.event_num,
shock: 0,
exp,
size,
life,
damage,
cond: Condition(0x00),
flags: Flag(0),
direction: if npc_flags.spawn_facing_right() { Direction::Right } else { Direction::Left },
npc_flags,
display_bounds,
hit_bounds,
parent_id: 0,
action_counter: 0,
action_counter2: 0,
anim_counter: 0,
anim_rect: Rect::new(0, 0, 0, 0),
};
self.npc_ids.insert(data.id);
self.npcs.insert(data.id, RefCell::new(npc));
self.npcs.get_mut(&data.id).unwrap().get_mut()
}
pub fn create_npc(npc_type: u16, table: &NPCTable) -> NPC {
let display_bounds = table.get_display_bounds(npc_type);
let hit_bounds = table.get_hit_bounds(npc_type);
let (size, life, damage, flags, exp) = match table.get_entry(npc_type) {
Some(entry) => { (entry.size, entry.life, entry.damage as u16, entry.npc_flags, entry.experience as u16) }
None => { (1, 0, 0, NPCFlag(0), 0) }
};
let npc_flags = NPCFlag(flags.0);
NPC {
id: 0,
npc_type,
x: 0,
y: 0,
vel_x: 0,
vel_y: 0,
target_x: 0,
target_y: 0,
action_num: 0,
anim_num: 0,
flag_num: 0,
event_num: 0,
shock: 0,
exp,
size,
life,
damage,
cond: Condition(0x00),
flags: Flag(0),
direction: if npc_flags.spawn_facing_right() { Direction::Right } else { Direction::Left },
npc_flags,
display_bounds,
hit_bounds,
parent_id: 0,
action_counter: 0,
action_counter2: 0,
anim_counter: 0,
anim_rect: Rect::new(0, 0, 0, 0),
}
}
pub fn garbage_collect(&mut self) {
let dead_npcs = self.npcs.iter().filter_map(|(&id, npc_cell)| {
if !npc_cell.borrow().cond.alive() {
Some(id)
} else {
None
}
}).collect_vec();
for npc_id in dead_npcs.iter() {
self.npc_ids.remove(npc_id);
self.npcs.remove(npc_id);
}
}
pub fn remove_by_event(&mut self, event_num: u16, game_flags: &mut BitVec) {
for npc_cell in self.npcs.values_mut() {
let mut npc = npc_cell.borrow_mut();
if npc.event_num == event_num {
npc.cond.set_alive(false);
game_flags.set(npc.flag_num as usize, true);
}
}
}
pub fn allocate_id(&mut self, start: u16) -> u16 {
for i in start..(u16::MAX) {
if !self.npc_ids.contains(&i) {
return i;
}
}
0xffff
}
pub fn create_death_effect(&self, x: isize, y: isize, radius: usize, count: usize, state: &mut SharedGameState) {
let radius = radius as i32 / 0x200;
for _ in 0..count {
let off_x = state.game_rng.range(-radius..radius) as isize * 0x200;
let off_y = state.game_rng.range(-radius..radius) as isize * 0x200;
let mut npc = NPCMap::create_npc(4, &state.npc_table);
npc.cond.set_alive(true);
npc.direction = Direction::Left;
npc.x = x + off_x;
npc.y = y + off_y;
state.new_npcs.push(npc);
}
state.create_caret(x, y, CaretType::Explosion, Direction::Left);
}
pub fn process_dead_npcs(&mut self, list: &[u16], has_missile: bool, state: &mut SharedGameState) {
for id in list {
if let Some(npc_cell) = self.npcs.get(id) {
let mut npc = npc_cell.borrow_mut();
if let Some(table_entry) = state.npc_table.get_entry(npc.npc_type) {
state.sound_manager.play_sfx(table_entry.death_sound);
}
match npc.size {
1 => { self.create_death_effect(npc.x, npc.y, npc.display_bounds.right, 3, state); }
2 => { self.create_death_effect(npc.x, npc.y, npc.display_bounds.right, 7, state); }
3 => { self.create_death_effect(npc.x, npc.y, npc.display_bounds.right, 12, state); }
_ => {}
};
if npc.exp != 0 {
let rng = state.game_rng.range(0..4);
match rng {
0 => {
let mut heart_pick = NPCMap::create_npc(87, &state.npc_table);
heart_pick.cond.set_alive(true);
heart_pick.direction = Direction::Left;
heart_pick.x = npc.x;
heart_pick.y = npc.y;
heart_pick.exp = if npc.exp > 6 { 6 } else { 2 };
state.new_npcs.push(heart_pick);
}
1 if has_missile => {
let mut missile_pick = NPCMap::create_npc(86, &state.npc_table);
missile_pick.cond.set_alive(true);
missile_pick.direction = Direction::Left;
missile_pick.x = npc.x;
missile_pick.y = npc.y;
missile_pick.exp = if npc.exp > 6 { 3 } else { 1 };
state.new_npcs.push(missile_pick);
}
_ => {
let mut exp = npc.exp;
while exp > 0 {
let exp_piece = if exp >= 20 {
exp -= 20;
20
} else if exp >= 5 {
exp -= 5;
5
} else {
exp -= 1;
1
};
let mut xp_npc = NPCMap::create_npc(1, &state.npc_table);
xp_npc.cond.set_alive(true);
xp_npc.direction = Direction::Left;
xp_npc.x = npc.x;
xp_npc.y = npc.y;
xp_npc.exp = exp_piece;
state.new_npcs.push(xp_npc);
}
}
}
}
state.game_flags.set(npc.flag_num as usize, true);
// todo vanish / show damage
npc.cond.set_alive(false);
}
}
self.process_npc_changes(state);
}
pub fn process_npc_changes(&mut self, state: &mut SharedGameState) {
if !state.new_npcs.is_empty() {
for mut npc in state.new_npcs.iter_mut() {
let id = if npc.id == 0 {
self.allocate_id(npc.get_start_index())
} else {
npc.id
};
npc.id = id;
self.npc_ids.insert(id);
self.npcs.insert(id, RefCell::new(*npc));
}
state.new_npcs.clear();
}
}
pub fn is_alive(&self, npc_id: u16) -> bool {
if let Some(npc_cell) = self.npcs.get(&npc_id) {
return npc_cell.borrow().cond.alive();
}
false
}
pub fn is_alive_by_event(&self, event_num: u16) -> bool {
for npc_cell in self.npcs.values() {
let npc = npc_cell.borrow();
if npc.cond.alive() && npc.event_num == event_num {
return true;
}
}
false
}
}
pub struct NPCTableEntry {
pub npc_flags: NPCFlag,
pub life: u16,
pub spritesheet_id: u8,
pub death_sound: u8,
pub hurt_sound: u8,
pub size: u8,
pub experience: u32,
pub damage: u32,
pub display_bounds: Rect<u8>,
pub hit_bounds: Rect<u8>,
}
pub struct NPCTable {
entries: Vec<NPCTableEntry>,
pub tileset_name: String,
pub tex_npc1_name: String,
pub tex_npc2_name: String,
}
impl NPCTable {
#[allow(clippy::new_without_default)]
pub fn new() -> NPCTable {
NPCTable {
entries: Vec::new(),
tileset_name: str!("Stage/Prt0"),
tex_npc1_name: str!("Npc/Npc0"),
tex_npc2_name: str!("Npc/Npc0"),
}
}
pub fn load_from<R: io::Read>(mut data: R) -> GameResult<NPCTable> {
let mut table = NPCTable::new();
let mut buf = Vec::new();
data.read_to_end(&mut buf)?;
let count = buf.len() / 0x18;
let mut f = Cursor::new(buf);
for _ in 0..count {
table.entries.push(NPCTableEntry {
npc_flags: NPCFlag(0),
life: 0,
spritesheet_id: 0,
death_sound: 0,
hurt_sound: 0,
size: 0,
experience: 0,
damage: 0,
display_bounds: Rect::new(0, 0, 0, 0),
hit_bounds: Rect::new(0, 0, 0, 0),
});
}
for npc in table.entries.iter_mut() {
npc.npc_flags.0 = f.read_u16::<LE>()?;
}
for npc in table.entries.iter_mut() {
npc.life = f.read_u16::<LE>()?;
}
for npc in table.entries.iter_mut() {
npc.spritesheet_id = f.read_u8()?;
}
for npc in table.entries.iter_mut() {
npc.death_sound = f.read_u8()?;
}
for npc in table.entries.iter_mut() {
npc.hurt_sound = f.read_u8()?;
}
for npc in table.entries.iter_mut() {
npc.size = f.read_u8()?;
}
for npc in table.entries.iter_mut() {
npc.experience = f.read_u32::<LE>()?;
}
for npc in table.entries.iter_mut() {
npc.damage = f.read_u32::<LE>()?;
}
for npc in table.entries.iter_mut() {
npc.hit_bounds.left = f.read_u8()?;
npc.hit_bounds.top = f.read_u8()?;
npc.hit_bounds.right = f.read_u8()?;
npc.hit_bounds.bottom = f.read_u8()?;
}
for npc in table.entries.iter_mut() {
npc.display_bounds.left = f.read_u8()?;
npc.display_bounds.top = f.read_u8()?;
npc.display_bounds.right = f.read_u8()?;
npc.display_bounds.bottom = f.read_u8()?;
}
Ok(table)
}
pub fn get_entry(&self, npc_type: u16) -> Option<&NPCTableEntry> {
self.entries.get(npc_type as usize)
}
pub fn get_display_bounds(&self, npc_type: u16) -> Rect<usize> {
if let Some(npc) = self.entries.get(npc_type as usize) {
Rect {
left: npc.display_bounds.left as usize * 0x200,
top: npc.display_bounds.top as usize * 0x200,
right: npc.display_bounds.right as usize * 0x200,
bottom: npc.display_bounds.bottom as usize * 0x200,
}
} else {
Rect { left: 0, top: 0, right: 0, bottom: 0 }
}
}
pub fn get_hit_bounds(&self, npc_type: u16) -> Rect<usize> {
if let Some(npc) = self.entries.get(npc_type as usize) {
Rect {
left: npc.hit_bounds.left as usize * 0x200,
top: npc.hit_bounds.top as usize * 0x200,
right: npc.hit_bounds.right as usize * 0x200,
bottom: npc.hit_bounds.bottom as usize * 0x200,
}
} else {
Rect { left: 0, top: 0, right: 0, bottom: 0 }
}
}
pub fn get_texture_name(&self, npc_type: u16) -> &str {
if let Some(npc) = self.entries.get(npc_type as usize) {
match npc.spritesheet_id {
2 => &self.tileset_name,
6 => "Fade",
8 => "ItemImage",
11 => "Arms",
12 => "ArmsImage",
14 => "StageImage",
15 => "Loading",
16 => "MyChar",
17 => "Bullet",
19 => "Caret",
20 => "Npc/NpcSym",
21 => &self.tex_npc1_name,
22 => &self.tex_npc2_name,
23 => "Npc/NpcRegu",
26 => "TextBox",
_ => "Npc/Npc0"
}
} else {
"Npc/Npc0"
}
}
}