initial implementation of weapons and bullets

src/bullet.rs

@@ -1,4 +1,43 @@
-use crate::common::{Condition, Direction, Rect, Flag};
+use crate::caret::CaretType;
+use crate::common::{Condition, Direction, Flag, Rect};
+use crate::engine_constants::{BulletData, EngineConstants};
+use crate::physics::PhysicalEntity;
+use crate::SharedGameState;
+use crate::stage::Stage;
+
+pub struct BulletManager {
+    pub bullets: Vec<Bullet>,
+}
+
+impl BulletManager {
+    pub fn new() -> BulletManager {
+        BulletManager {
+            bullets: Vec::with_capacity(32),
+        }
+    }
+
+    pub fn create_bullet(&mut self, x: isize, y: isize, btype: u16, direction: Direction, constants: &EngineConstants) {
+        self.bullets.push(Bullet::new(x, y, btype, direction, constants));
+    }
+
+    pub fn tick_bullets(&mut self, state: &mut SharedGameState, stage: &Stage) {
+        for bullet in self.bullets.iter_mut() {
+            bullet.tick(state);
+            bullet.flags.0 = 0;
+            bullet.tick_map_collisions(state, stage);
+        }
+
+        self.bullets.retain(|b| !b.is_dead());
+    }
+
+    pub fn count_bullets(&self, btype: u16) -> usize {
+        self.bullets.iter().filter(|b| b.btype == btype).count()
+    }
+
+    pub fn count_bullets_multi(&self, btypes: [u16; 3]) -> usize {
+        self.bullets.iter().filter(|b| btypes.contains(&b.btype)).count()
+    }
+}
 
 pub struct Bullet {
     pub btype: u16,
@@ -17,15 +56,221 @@ pub struct Bullet {
     pub anim_rect: Rect<usize>,
     pub enemy_hit_width: u32,
     pub enemy_hit_height: u32,
-    pub block_hit_width: u32,
-    pub block_hit_height: u32,
     pub anim_num: u16,
     pub anim_counter: u16,
     pub action_num: u16,
     pub action_counter: u16,
+    pub hit_bounds: Rect<usize>,
     pub display_bounds: Rect<usize>,
 }
 
 impl Bullet {
+    pub fn new(x: isize, y: isize, btype: u16, direction: Direction, constants: &EngineConstants) -> Bullet {
+        let bullet = constants.weapon.bullet_table
+            .get(btype as usize)
+            .unwrap_or_else(|| &BulletData {
+                damage: 0,
+                life: 0,
+                lifetime: 0,
+                flags: Flag(0),
+                enemy_hit_width: 0,
+                enemy_hit_height: 0,
+                block_hit_width: 0,
+                block_hit_height: 0,
+                display_bounds: Rect { left: 0, top: 0, right: 0, bottom: 0 },
+            });
 
+        Bullet {
+            btype,
+            x,
+            y,
+            vel_x: 0,
+            vel_y: 0,
+            target_x: 0,
+            target_y: 0,
+            life: bullet.life as u16,
+            lifetime: bullet.lifetime,
+            damage: bullet.damage as u16,
+            cond: Condition(0x80),
+            flags: bullet.flags,
+            direction,
+            anim_rect: Rect::new(0, 0, 0, 0),
+            enemy_hit_width: bullet.enemy_hit_width as u32 * 0x200,
+            enemy_hit_height: bullet.enemy_hit_height as u32 * 0x200,
+            anim_num: 0,
+            anim_counter: 0,
+            action_num: 0,
+            action_counter: 0,
+            display_bounds: Rect::new(
+                bullet.display_bounds.left as usize * 0x200,
+                bullet.display_bounds.top as usize * 0x200,
+                bullet.display_bounds.right as usize * 0x200,
+                bullet.display_bounds.bottom as usize * 0x200,
+            ),
+            hit_bounds: Rect::new(
+                bullet.block_hit_width as usize * 0x200,
+                bullet.block_hit_height as usize * 0x200,
+                bullet.block_hit_width as usize * 0x200,
+                bullet.block_hit_height as usize * 0x200,
+            ),
+        }
+    }
+
+    #[inline]
+    pub fn is_dead(&self) -> bool {
+        !self.cond.alive()
+    }
+
+    fn tick_polar_star(&mut self, state: &mut SharedGameState) {
+        self.action_counter += 1;
+        if self.action_counter > self.lifetime {
+            self.cond.set_alive(false);
+            state.create_caret(self.x, self.y, CaretType::Shoot, Direction::Left);
+            return;
+        }
+
+        if self.action_num == 0 {
+            self.action_num = 1;
+
+            match self.direction {
+                Direction::Left => { self.vel_x = -0x1000 }
+                Direction::Up => { self.vel_y = -0x1000 }
+                Direction::Right => { self.vel_x = 0x1000 }
+                Direction::Bottom => { self.vel_y = 0x1000 }
+            }
+
+            match self.btype {
+                4 => {
+                    match self.direction {
+                        Direction::Left | Direction::Right => {
+                            self.enemy_hit_height = 0x400;
+                        }
+                        Direction::Up | Direction::Bottom => {
+                            self.enemy_hit_width = 0x400;
+                        }
+                    }
+                }
+                5 => {
+                    match self.direction {
+                        Direction::Left | Direction::Right => {
+                            self.enemy_hit_height = 0x800;
+                        }
+                        Direction::Up | Direction::Bottom => {
+                            self.enemy_hit_width = 0x800;
+                        }
+                    }
+                }
+                6 => {
+                    // level 3 uses default values
+                }
+                _ => { unreachable!() }
+            }
+        } else {
+            self.x += self.vel_x;
+            self.y += self.vel_y;
+        }
+
+        match self.btype {
+            4 => {
+                if self.direction == Direction::Up || self.direction == Direction::Bottom {
+                    self.anim_num = 1;
+                    self.anim_rect = state.constants.weapon.bullet_rects.b004_polar_star_l1[1];
+                } else {
+                    self.anim_num = 0;
+                    self.anim_rect = state.constants.weapon.bullet_rects.b004_polar_star_l1[0];
+                }
+            }
+            5 => {
+                if self.direction == Direction::Up || self.direction == Direction::Bottom {
+                    self.anim_num = 1;
+                    self.anim_rect = state.constants.weapon.bullet_rects.b005_polar_star_l2[1];
+                } else {
+                    self.anim_num = 0;
+                    self.anim_rect = state.constants.weapon.bullet_rects.b005_polar_star_l2[0];
+                }
+            }
+            6 => {
+                if self.direction == Direction::Up || self.direction == Direction::Bottom {
+                    self.anim_num = 1;
+                    self.anim_rect = state.constants.weapon.bullet_rects.b006_polar_star_l3[1];
+                } else {
+                    self.anim_num = 0;
+                    self.anim_rect = state.constants.weapon.bullet_rects.b006_polar_star_l3[0];
+                }
+            }
+            _ => { unreachable!() }
+        }
+    }
+
+    pub fn tick(&mut self, state: &mut SharedGameState) {
+        if self.lifetime == 0 {
+            self.cond.set_alive(false);
+            return;
+        }
+
+        match self.btype {
+            4 | 5 | 6 => {
+                self.tick_polar_star(state);
+            }
+            _ => { self.cond.set_alive(false); }
+        }
+    }
+}
+
+impl PhysicalEntity for Bullet {
+    fn x(&self) -> isize {
+        self.x
+    }
+
+    fn y(&self) -> isize {
+        self.y
+    }
+
+    fn vel_x(&self) -> isize {
+        self.vel_x
+    }
+
+    fn vel_y(&self) -> isize {
+        self.vel_y
+    }
+
+    fn size(&self) -> u8 {
+        1
+    }
+
+    fn hit_bounds(&self) -> &Rect<usize> {
+        &self.hit_bounds
+    }
+
+    fn set_x(&mut self, x: isize) {
+        self.x = x;
+    }
+
+    fn set_y(&mut self, y: isize) {
+        self.y = y;
+    }
+
+    fn set_vel_x(&mut self, vel_x: isize) {
+        self.vel_x = vel_x;
+    }
+
+    fn set_vel_y(&mut self, vel_y: isize) {
+        self.vel_y = vel_y;
+    }
+
+    fn cond(&mut self) -> &mut Condition {
+        &mut self.cond
+    }
+
+    fn flags(&mut self) -> &mut Flag {
+        &mut self.flags
+    }
+
+    fn is_player(&self) -> bool {
+        false
+    }
+
+    /*fn judge_hit_block(&mut self, state: &SharedGameState, x: isize, y: isize) {
+
+    }*/
 }

src/caret.rs

@@ -2,6 +2,7 @@ use crate::bitfield;
 use crate::common::{Condition, Direction, Rect};
 use crate::engine_constants::EngineConstants;
 use crate::rng::RNG;
+use std::fs::read_to_string;
 
 #[derive(Debug, EnumIter, PartialEq, Eq, Hash, Copy, Clone)]
 pub enum CaretType {
@@ -36,14 +37,15 @@ pub struct Caret {
     pub cond: Condition,
     pub direction: Direction,
     pub anim_rect: Rect<usize>,
-    anim_num: usize,
-    anim_counter: isize,
+    anim_num: u16,
+    anim_counter: u16,
 }
 
 impl Caret {
-    pub fn new(x: isize, y: isize, ctype: CaretType, direct: Direction, constants: &EngineConstants) -> Self {
+    pub fn new(x: isize, y: isize, ctype: CaretType, direct: Direction, constants: &EngineConstants) -> Caret {
         let (offset_x, offset_y) = constants.caret.offsets[ctype as usize];
-        Self {
+
+        Caret {
             ctype,
             x,
             y,
@@ -53,7 +55,7 @@ impl Caret {
             offset_y,
             cond: Condition(0x80),
             direction: direct,
-            anim_rect: Rect::<usize>::new(0, 0, 0, 0),
+            anim_rect: Rect::new(0, 0, 0, 0),
             anim_num: 0,
             anim_counter: 0,
         }
@@ -63,13 +65,73 @@ impl Caret {
         match self.ctype {
             CaretType::None => {}
             CaretType::Bubble => {}
-            CaretType::ProjectileDissipation => {}
-            CaretType::Shoot => {}
-            CaretType::SnakeAfterimage | CaretType::SnakeAfterimage2 => { // dupe, unused
+            CaretType::ProjectileDissipation => {
+                match self.direction {
+                    Direction::Left => {
+                        self.vel_y -= 0x10;
+                        self.y += self.vel_y;
+
+                        self.anim_counter += 1;
+                        if self.anim_counter > 5 {
+                            self.anim_counter = 0;
+                            self.anim_num += 1;
+
+                            if self.anim_num > constants.caret.projectile_dissipation_left_rects.len() as u16 {
+                                self.cond.set_alive(false);
+                                return;
+                            }
+
+                            self.anim_rect = constants.caret.projectile_dissipation_left_rects[self.anim_num as usize];
+                        }
+                    },
+                    Direction::Up => {
+                        self.anim_counter += 1;
+
+                        if self.anim_counter > 24 {
+                            self.cond.set_alive(false);
+                        }
+
+                        let len = constants.caret.projectile_dissipation_up_rects.len();
+                        self.anim_rect = constants.caret.projectile_dissipation_up_rects[(self.anim_num as usize / 2) % len];
+                    },
+                    Direction::Right => {
+                        self.anim_counter += 1;
+                        if self.anim_counter > 2 {
+                            self.anim_counter = 0;
+                            self.anim_num += 1;
+
+                            if self.anim_num > constants.caret.projectile_dissipation_right_rects.len() as u16 {
+                                self.cond.set_alive(false);
+                                return;
+                            }
+
+                            self.anim_rect = constants.caret.projectile_dissipation_right_rects[self.anim_num as usize];
+                        }
+                    },
+                    Direction::Bottom => {
+                        self.cond.set_alive(false);
+                    },
+                }
             }
+            CaretType::Shoot => {
+                if self.anim_counter == 0 {
+                    self.anim_rect = constants.caret.shoot_rects[self.anim_num as usize];
+                }
+
+                self.anim_counter += 1;
+                if self.anim_counter > 3 {
+                    self.anim_counter = 0;
+                    self.anim_num += 1;
+                }
+
+                if self.anim_num == constants.caret.shoot_rects.len() as u16 {
+                    self.cond.set_alive(false);
+                }
+            }
+            CaretType::SnakeAfterimage | CaretType::SnakeAfterimage2 => {} // dupe, unused
             CaretType::Zzz => {
                 if self.anim_counter == 0 {
-                    self.anim_rect = constants.caret.zzz_rects[self.anim_num];
+                    self.anim_rect = constants.caret.zzz_rects[self.anim_num as usize];
                 }
 
                 self.anim_counter += 1;
@@ -78,27 +140,30 @@ impl Caret {
                     self.anim_num += 1;
                 }
 
-                if self.anim_num == constants.caret.zzz_rects.len() {
+                if self.anim_num == constants.caret.zzz_rects.len() as u16 {
                     self.cond.set_alive(false);
+                    return;
                 }
 
                 self.x += 0x80; // 0.4fix9
                 self.y -= 0x80;
             }
             CaretType::Exhaust => {
+                if self.anim_counter == 0 {
+                    self.anim_rect = constants.caret.exhaust_rects[self.anim_num as usize];
+                }
+
                 self.anim_counter += 1;
                 if self.anim_counter > 1 {
                     self.anim_counter = 0;
                     self.anim_num += 1;
-                }
 
-                if self.anim_num >= constants.caret.exhaust_rects.len() {
-                    self.cond.set_alive(false);
-                    return;
+                    if self.anim_num >= constants.caret.exhaust_rects.len() as u16 {
+                        self.cond.set_alive(false);
+                        return;
+                    }
                 }
 
-                self.anim_rect = constants.caret.exhaust_rects[self.anim_num];
-
                 match self.direction {
                     Direction::Left => { self.x -= 0x400; } // 2.0fix9
                     Direction::Up => { self.y -= 0x400; }
@@ -165,7 +230,8 @@ impl Caret {
                     return;
                 }
 
-                self.anim_rect = constants.caret.little_particles_rects[self.anim_num / 2 % constants.caret.little_particles_rects.len()];
+                let len = constants.caret.little_particles_rects.len();
+                self.anim_rect = constants.caret.little_particles_rects[self.anim_num as usize / 2 % len];
 
                 if self.direction == Direction::Right {
                     self.x -= 4 * 0x200;

src/common.rs

@@ -13,10 +13,10 @@ bitfield! {
   pub hit_bottom_wall, set_hit_bottom_wall: 3; // 0x08
   pub hit_right_slope, set_hit_right_slope: 4; // 0x10
   pub hit_left_slope, set_hit_left_slope: 5; // 0x20
-  pub flag_x40, set_flag_x40: 6; // 0x40
+  pub snack_destroy, set_snack_destroy: 6; // 0x40
   pub flag_x80, set_flag_x80: 7; // 0x80
   pub in_water, set_in_water: 8; // 0x100
-  pub flag_x200, set_flag_x200: 9; // 0x200
+  pub weapon_hit_block, set_weapon_hit_block: 9; // 0x200
   pub hit_by_spike, set_hit_by_spike: 10; // 0x400
   pub water_splash_facing_right, set_water_splash_facing_right: 11; // 0x800
   pub force_left, set_force_left: 12; // 0x1000
@@ -84,7 +84,7 @@ bitfield! {
   #[derive(Clone, Copy)]
   pub struct ControlFlags(u16);
   impl Debug;
-  
+
   pub flag_x01, set_flag_x01: 0;
   pub control_enabled, set_control_enabled: 1;
   pub interactions_disabled, set_interactions_disabled: 2;

src/engine_constants.rs

@@ -48,6 +48,10 @@ pub struct CaretConsts {
     pub offsets: [(isize, isize); 18],
     pub bubble_left_rects: Vec<Rect<usize>>,
     pub bubble_right_rects: Vec<Rect<usize>>,
+    pub projectile_dissipation_left_rects: Vec<Rect<usize>>,
+    pub projectile_dissipation_right_rects: Vec<Rect<usize>>,
+    pub projectile_dissipation_up_rects: Vec<Rect<usize>>,
+    pub shoot_rects: Vec<Rect<usize>>,
     pub zzz_rects: Vec<Rect<usize>>,
     pub drowned_quote_left_rect: Rect<usize>,
     pub drowned_quote_right_rect: Rect<usize>,
@@ -65,6 +69,10 @@ impl Clone for CaretConsts {
             offsets: self.offsets,
             bubble_left_rects: self.bubble_left_rects.clone(),
             bubble_right_rects: self.bubble_right_rects.clone(),
+            projectile_dissipation_left_rects: self.projectile_dissipation_left_rects.clone(),
+            projectile_dissipation_right_rects: self.projectile_dissipation_right_rects.clone(),
+            projectile_dissipation_up_rects: self.projectile_dissipation_up_rects.clone(),
+            shoot_rects: self.shoot_rects.clone(),
             zzz_rects: self.zzz_rects.clone(),
             drowned_quote_left_rect: self.drowned_quote_left_rect,
             drowned_quote_right_rect: self.drowned_quote_right_rect,
@@ -92,15 +100,24 @@ pub struct BulletData {
     pub display_bounds: Rect<u8>,
 }
 
+#[derive(Debug, Copy, Clone)]
+pub struct BulletRects {
+    pub b004_polar_star_l1: [Rect<usize>; 2],
+    pub b005_polar_star_l2: [Rect<usize>; 2],
+    pub b006_polar_star_l3: [Rect<usize>; 2],
+}
+
 #[derive(Debug)]
 pub struct WeaponConsts {
     pub bullet_table: Vec<BulletData>,
+    pub bullet_rects: BulletRects,
 }
 
 impl Clone for WeaponConsts {
     fn clone(&self) -> WeaponConsts {
         WeaponConsts {
             bullet_table: self.bullet_table.clone(),
+            bullet_rects: self.bullet_rects,
         }
     }
 }
@@ -316,6 +333,29 @@ impl EngineConstants {
                     Rect { left: 80, top: 24, right: 88, bottom: 32 },
                     Rect { left: 88, top: 24, right: 96, bottom: 32 },
                 ],
+                projectile_dissipation_left_rects: vec![
+                    Rect { left: 0, top: 32, right: 16, bottom: 48 },
+                    Rect { left: 16, top: 32, right: 32, bottom: 48 },
+                    Rect { left: 32, top: 32, right: 48, bottom: 48 },
+                    Rect { left: 48, top: 32, right: 64, bottom: 48 },
+                ],
+                projectile_dissipation_right_rects: vec![
+                    Rect { left: 176, top: 0, right: 192, bottom: 16 },
+                    Rect { left: 192, top: 0, right: 208, bottom: 16 },
+                    Rect { left: 208, top: 0, right: 224, bottom: 16 },
+                    Rect { left: 224, top: 0, right: 240, bottom: 16 },
+                ],
+                projectile_dissipation_up_rects: vec![
+                    Rect { left: 0, top: 32, right: 16, bottom: 48 },
+                    Rect { left: 32, top: 32, right: 48, bottom: 48 },
+                    Rect { left: 16, top: 32, right: 32, bottom: 48 },
+                ],
+                shoot_rects: vec![
+                    Rect { left: 0, top: 48, right: 16, bottom: 64 },
+                    Rect { left: 16, top: 48, right: 32, bottom: 64 },
+                    Rect { left: 32, top: 48, right: 48, bottom: 64 },
+                    Rect { left: 48, top: 48, right: 64, bottom: 64 },
+                ],
                 zzz_rects: vec![
                     Rect { left: 32, top: 64, right: 40, bottom: 72 },
                     Rect { left: 32, top: 72, right: 40, bottom: 80 },
@@ -824,6 +864,20 @@ impl EngineConstants {
                     // Whimsical Star
                     BulletData { damage: 1, life: 1, lifetime: 1, flags: Flag(36), enemy_hit_width: 1, enemy_hit_height: 1, block_hit_width: 1, block_hit_height: 1, display_bounds: Rect { left: 1, top: 1, right: 1, bottom: 1 } },
                 ],
+                bullet_rects: BulletRects {
+                    b004_polar_star_l1: [
+                        Rect { left: 128, top: 32, right: 144, bottom: 48 },
+                        Rect { left: 144, top: 32, right: 160, bottom: 48 },
+                    ],
+                    b005_polar_star_l2: [
+                        Rect { left: 160, top: 32, right: 176, bottom: 48 },
+                        Rect { left: 176, top: 32, right: 192, bottom: 48 },
+                    ],
+                    b006_polar_star_l3: [
+                        Rect { left: 128, top: 48, right: 144, bottom: 64 },
+                        Rect { left: 144, top: 48, right: 160, bottom: 64 },
+                    ],
+                },
             },
             tex_sizes: case_insensitive_hashmap! {
                 "ArmsImage" => (256, 16),

src/inventory.rs

@@ -1,11 +1,4 @@
-#[derive(Clone)]
-pub struct Weapon {
-    pub id: u16,
-    pub level: u16,
-    pub experience: u16,
-    pub ammo: u16,
-    pub max_ammo: u16,
-}
+use crate::weapon::{Weapon, WeaponLevel, WeaponType};
 
 #[derive(Clone, Copy)]
 pub struct Item(u16);
@@ -43,20 +36,20 @@ impl Inventory {
         self.items.iter().any(|item| item.0 == item_id)
     }
 
-    pub fn add_weapon(&mut self, weapon_id: u16, max_ammo: u16) {
+    pub fn add_weapon(&mut self, weapon_id: WeaponType, max_ammo: u16) {
         if !self.has_weapon(weapon_id) {
-            self.weapons.push(Weapon {
-                id: weapon_id,
-                level: 1,
-                experience: 0,
-                ammo: max_ammo,
+            self.weapons.push(Weapon::new(
+                weapon_id,
+                WeaponLevel::Level1,
+                0,
                 max_ammo,
-            });
+                max_ammo,
+            ));
         }
     }
 
-    pub fn remove_weapon(&mut self, weapon_id: u16) {
-        self.weapons.retain(|weapon| weapon.id != weapon_id);
+    pub fn remove_weapon(&mut self, wtype: WeaponType) {
+        self.weapons.retain(|weapon| weapon.wtype != wtype);
     }
 
     pub fn get_weapon(&self, idx: usize) -> Option<&Weapon> {
@@ -75,7 +68,7 @@ impl Inventory {
 
     pub fn reset_all_weapon_xp(&mut self) {
         for weapon in self.weapons.iter_mut() {
-            weapon.level = 1;
+            weapon.level = WeaponLevel::Level1;
             weapon.experience = 0;
         }
     }
@@ -88,11 +81,11 @@ impl Inventory {
         }
     }
 
-    pub fn get_current_level(&self) -> u16 {
+    pub fn get_current_level(&self) -> WeaponLevel {
         if let Some(weapon) = self.weapons.get(self.current_weapon as usize) {
             weapon.level
         } else {
-            0
+            WeaponLevel::None
         }
     }
 
@@ -104,7 +97,7 @@ impl Inventory {
         self.weapons.len()
     }
 
-    pub fn has_weapon(&self, weapon_id: u16) -> bool {
-        self.weapons.iter().any(|weapon| weapon.id == weapon_id)
+    pub fn has_weapon(&self, wtype: WeaponType) -> bool {
+        self.weapons.iter().any(|weapon| weapon.wtype == wtype)
     }
 }

src/main.rs

@@ -24,7 +24,7 @@ use winit::{ElementState, Event, KeyboardInput, WindowEvent};
 use crate::bmfont_renderer::BMFontRenderer;
 use crate::builtin_fs::BuiltinFS;
 use crate::caret::{Caret, CaretType};
-use crate::common::{Direction, FadeState, KeyState, ControlFlags};
+use crate::common::{ControlFlags, Direction, FadeState, KeyState};
 use crate::engine_constants::EngineConstants;
 use crate::ggez::{Context, ContextBuilder, event, filesystem, GameResult};
 use crate::ggez::conf::{WindowMode, WindowSetup};
@@ -34,6 +34,7 @@ use crate::ggez::graphics::DrawParam;
 use crate::ggez::input::keyboard;
 use crate::ggez::mint::ColumnMatrix4;
 use crate::ggez::nalgebra::Vector2;
+use crate::npc::NPCTable;
 use crate::rng::RNG;
 use crate::scene::loading_scene::LoadingScene;
 use crate::scene::Scene;
@@ -42,7 +43,6 @@ use crate::stage::StageData;
 use crate::text_script::TextScriptVM;
 use crate::texture_set::TextureSet;
 use crate::ui::UI;
-use crate::npc::NPCTable;
 
 mod bmfont;
 mod bmfont_renderer;
@@ -53,6 +53,7 @@ mod common;
 mod engine_constants;
 mod entity;
 mod frame;
+mod inventory;
 mod ggez;
 mod live_debugger;
 mod macros;
@@ -68,7 +69,7 @@ mod sound;
 mod text_script;
 mod texture_set;
 mod ui;
-mod inventory;
+mod weapon;
 
 struct Game {
     scene: Option<Box<dyn Scene>>,

src/npc/mod.rs

@@ -327,6 +327,7 @@ pub struct NPCTable {
 }
 
 impl NPCTable {
+    #[allow(clippy::new_without_default)]
     pub fn new() -> NPCTable {
         NPCTable {
             entries: Vec::new(),

src/player.rs

@@ -32,7 +32,6 @@ pub struct Player {
     pub cond: Condition,
     pub flags: Flag,
     pub equip: Equipment,
-    pub inventory: Inventory,
     pub direction: Direction,
     pub display_bounds: Rect<usize>,
     pub hit_bounds: Rect<usize>,
@@ -72,7 +71,6 @@ impl Player {
             cond: Condition(0x80),
             flags: Flag(0),
             equip: Equipment(0),
-            inventory: Inventory::new(),
             direction: Direction::Right,
             display_bounds: constants.my_char.display_bounds,
             hit_bounds: constants.my_char.hit_bounds,

src/scene/game_scene.rs

@@ -1,28 +1,32 @@
 use log::info;
 
-use crate::common::{FadeDirection, FadeState, Rect};
+use crate::bullet::BulletManager;
+use crate::common::{Direction, FadeDirection, FadeState, Rect};
 use crate::entity::GameEntity;
 use crate::frame::Frame;
 use crate::ggez::{Context, GameResult, graphics, timer};
-use crate::ggez::graphics::{Color, Drawable, DrawParam, Text, TextFragment};
+use crate::ggez::graphics::Color;
 use crate::ggez::nalgebra::clamp;
+use crate::inventory::Inventory;
 use crate::npc::NPCMap;
 use crate::physics::PhysicalEntity;
 use crate::player::Player;
 use crate::scene::Scene;
 use crate::SharedGameState;
 use crate::stage::{BackgroundType, Stage};
-use crate::str;
 use crate::text_script::{ConfirmSelection, TextScriptExecutionState, TextScriptVM};
 use crate::ui::Components;
+use crate::weapon::WeaponType;
 
 pub struct GameScene {
     pub tick: usize,
     pub stage: Stage,
     pub frame: Frame,
     pub player: Player,
+    pub inventory: Inventory,
     pub stage_id: usize,
     pub npc_map: NPCMap,
+    pub bullet_manager: BulletManager,
     tex_background_name: String,
     tex_tileset_name: String,
     life_bar: u16,
@@ -58,6 +62,7 @@ impl GameScene {
             tick: 0,
             stage,
             player: Player::new(state),
+            inventory: Inventory::new(),
             frame: Frame {
                 x: 0,
                 y: 0,
@@ -65,6 +70,7 @@ impl GameScene {
             },
             stage_id: id,
             npc_map: NPCMap::new(),
+            bullet_manager: BulletManager::new(),
             tex_background_name,
             tex_tileset_name,
             life_bar: 0,
@@ -95,7 +101,7 @@ impl GameScene {
     fn draw_hud(&self, state: &mut SharedGameState, ctx: &mut Context) -> GameResult {
         // none
         let weap_x = self.weapon_x_pos as f32;
-        let (ammo, max_ammo) = self.player.inventory.get_current_ammo();
+        let (ammo, max_ammo) = self.inventory.get_current_ammo();
         let batch = state.texture_set.get_or_load_batch(ctx, &state.constants, "TextBox")?;
 
         if max_ammo == 0 {
@@ -133,9 +139,9 @@ impl GameScene {
         batch.draw(ctx)?;
         let batch = state.texture_set.get_or_load_batch(ctx, &state.constants, "ArmsImage")?;
 
-        let weapon_count = self.player.inventory.get_weapon_count();
+        let weapon_count = self.inventory.get_weapon_count();
         if weapon_count != 0 {
-            let current_weapon = self.player.inventory.get_current_weapon_idx() as usize;
+            let current_weapon = self.inventory.get_current_weapon_idx() as usize;
             let mut rect = Rect::new(0, 0, 0, 16);
 
             for a in 0..weapon_count {
@@ -153,8 +159,8 @@ impl GameScene {
                     pos_x -= 48.0;
                 }
 
-                if let Some(weapon) = self.player.inventory.get_weapon(a) {
-                    rect.left = weapon.id as usize * 16;
+                if let Some(weapon) = self.inventory.get_weapon(a) {
+                    rect.left = weapon.wtype as usize * 16;
                     rect.right = rect.left + 16;
                     batch.add_rect(pos_x, 16.0, &rect);
                 }
@@ -167,7 +173,7 @@ impl GameScene {
             self.draw_number(weap_x + 64.0, 16.0, ammo as usize, Alignment::Right, state, ctx)?;
             self.draw_number(weap_x + 64.0, 24.0, max_ammo as usize, Alignment::Right, state, ctx)?;
         }
-        self.draw_number(40.0, 32.0, self.player.inventory.get_current_level() as usize, Alignment::Right, state, ctx)?;
+        self.draw_number(40.0, 32.0, self.inventory.get_current_level() as usize, Alignment::Right, state, ctx)?;
         self.draw_number(40.0, 40.0, self.life_bar as usize, Alignment::Right, state, ctx)?;
 
         Ok(())
@@ -187,23 +193,18 @@ impl GameScene {
                     }
                 }
             }
-            BackgroundType::MoveDistant => {
-                let off_x = self.frame.x as usize / 2 % (batch.width() * 0x200);
-                let off_y = self.frame.y as usize / 2 % (batch.height() * 0x200);
-
-                let count_x = state.canvas_size.0 as usize / batch.width() + 2;
-                let count_y = state.canvas_size.1 as usize / batch.height() + 2;
-
-                for y in 0..count_y {
-                    for x in 0..count_x {
-                        batch.add((x * batch.width()) as f32 - (off_x / 0x200) as f32,
-                                  (y * batch.height()) as f32 - (off_y / 0x200) as f32);
-                    }
-                }
-            }
-            BackgroundType::MoveNear => {
-                let off_x = self.frame.x as usize % (batch.width() * 0x200);
-                let off_y = self.frame.y as usize % (batch.height() * 0x200);
+            BackgroundType::MoveDistant | BackgroundType::MoveNear => {
+                let (off_x, off_y) = if self.stage.data.background_type == BackgroundType::MoveDistant {
+                    (
+                        self.frame.x as usize % (batch.width() * 0x200),
+                        self.frame.y as usize % (batch.height() * 0x200)
+                    )
+                } else {
+                    (
+                        self.frame.x as usize / 2 % (batch.width() * 0x200),
+                        self.frame.y as usize / 2 % (batch.height() * 0x200)
+                    )
+                };
 
                 let count_x = state.canvas_size.0 as usize / batch.width() + 2;
                 let count_y = state.canvas_size.1 as usize / batch.height() + 2;
@@ -253,6 +254,40 @@ impl GameScene {
         Ok(())
     }
 
+    fn draw_bullets(&self, state: &mut SharedGameState, ctx: &mut Context) -> GameResult {
+        let batch = state.texture_set.get_or_load_batch(ctx, &state.constants, "Bullet")?;
+        let mut x: isize;
+        let mut y: isize;
+
+        for bullet in self.bullet_manager.bullets.iter() {
+            match bullet.direction {
+                Direction::Left => {
+                    x = bullet.x - bullet.display_bounds.left as isize;
+                    y = bullet.y - bullet.display_bounds.top as isize;
+                }
+                Direction::Up => {
+                    x = bullet.x - bullet.display_bounds.top as isize;
+                    y = bullet.y - bullet.display_bounds.left as isize;
+                }
+                Direction::Right => {
+                    x = bullet.x - bullet.display_bounds.right as isize;
+                    y = bullet.y - bullet.display_bounds.top as isize;
+                }
+                Direction::Bottom => {
+                    x = bullet.x - bullet.display_bounds.top as isize;
+                    y = bullet.y - bullet.display_bounds.right as isize;
+                }
+            }
+
+            batch.add_rect(((x / 0x200) - (self.frame.x / 0x200)) as f32,
+                           ((y / 0x200) - (self.frame.y / 0x200)) as f32,
+                           &bullet.anim_rect);
+        }
+
+        batch.draw(ctx)?;
+        Ok(())
+    }
+
     fn draw_carets(&self, state: &mut SharedGameState, ctx: &mut Context) -> GameResult {
         let batch = state.texture_set.get_or_load_batch(ctx, &state.constants, "Caret")?;
 
@@ -560,6 +595,8 @@ impl Scene for GameScene {
         self.player.target_x = self.player.x;
         self.player.target_y = self.player.y;
         self.frame.immediate_update(state, &self.player, &self.stage);
+
+        self.inventory.add_weapon(WeaponType::PolarStar, 0);
         //self.player.equip.set_booster_2_0(true);
         Ok(())
     }
@@ -572,6 +609,7 @@ impl Scene for GameScene {
 
             self.player.flags.0 = 0;
             state.tick_carets();
+            self.bullet_manager.tick_bullets(state, &self.stage);
 
             self.player.tick_map_collisions(state, &self.stage);
             self.player.tick_npc_collisions(state, &mut self.npc_map);
@@ -591,6 +629,10 @@ impl Scene for GameScene {
         }
 
         if state.control_flags.control_enabled() {
+            if let Some(weapon) = self.inventory.get_current_weapon_mut() {
+                weapon.shoot_bullet(&self.player, &mut self.bullet_manager, state);
+            }
+
             // update health bar
             if self.life_bar < self.player.life as u16 {
                 self.life_bar = self.player.life as u16;
@@ -646,6 +688,7 @@ impl Scene for GameScene {
             }
         }
         self.player.draw(state, ctx, &self.frame)?;
+        self.draw_bullets(state, ctx)?;
         self.draw_tiles(state, ctx, TileLayer::Foreground)?;
         self.draw_tiles(state, ctx, TileLayer::Snack)?;
         self.draw_carets(state, ctx)?;

src/text_script.rs

@@ -20,6 +20,7 @@ use crate::ggez::{Context, GameResult};
 use crate::ggez::GameError::ParseError;
 use crate::player::ControlMode;
 use crate::scene::game_scene::GameScene;
+use crate::weapon::WeaponType;
 
 /// Engine's text script VM operation codes.
 #[derive(EnumString, Debug, FromPrimitive, PartialEq)]
@@ -639,17 +640,18 @@ impl TextScriptVM {
                         let item_id = read_cur_varint(&mut cursor)? as u16;
                         let event_num = read_cur_varint(&mut cursor)? as u16;
 
-                        if game_scene.player.inventory.has_item(item_id) {
+                        if game_scene.inventory.has_item(item_id) {
                             exec_state = TextScriptExecutionState::Running(event_num, 0);
                         } else {
                             exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                         }
                     }
                     OpCode::AMJ => {
-                        let weapon = read_cur_varint(&mut cursor)? as u16;
+                        let weapon = read_cur_varint(&mut cursor)? as u8;
                         let event_num = read_cur_varint(&mut cursor)? as u16;
+                        let weapon_type: Option<WeaponType> = FromPrimitive::from_u8(weapon);
 
-                        if game_scene.player.inventory.has_weapon(weapon) {
+                        if weapon_type.is_some() && game_scene.inventory.has_weapon(weapon_type.unwrap()) {
                             exec_state = TextScriptExecutionState::Running(event_num, 0);
                         } else {
                             exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
@@ -743,7 +745,7 @@ impl TextScriptVM {
                     OpCode::YNJ => {
                         let event_no = read_cur_varint(&mut cursor)? as u16;
 
-                        exec_state = TextScriptExecutionState::WaitConfirmation(event, cursor.position() as u32, event_no, 16, ConfirmSelection::No);
+                        exec_state = TextScriptExecutionState::WaitConfirmation(event, cursor.position() as u32, event_no, 16, ConfirmSelection::Yes);
                     }
                     OpCode::GIT => {
                         let item = read_cur_varint(&mut cursor)? as u16;
@@ -758,6 +760,7 @@ impl TextScriptVM {
                         let pos_y = read_cur_varint(&mut cursor)? as isize * 16 * 0x200;
 
                         let mut new_scene = GameScene::new(state, ctx, map_id)?;
+                        new_scene.inventory = game_scene.inventory.clone();
                         new_scene.player = game_scene.player.clone();
                         new_scene.player.vel_x = 0;
                         new_scene.player.vel_y = 0;
@@ -998,39 +1001,45 @@ impl TextScriptVM {
                     OpCode::ITp => {
                         let item_id = read_cur_varint(&mut cursor)? as u16;
 
-                        game_scene.player.inventory.add_item(item_id);
+                        game_scene.inventory.add_item(item_id);
 
                         exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                     }
                     OpCode::ITm => {
                         let item_id = read_cur_varint(&mut cursor)? as u16;
 
-                        game_scene.player.inventory.remove_item(item_id);
+                        game_scene.inventory.remove_item(item_id);
 
                         exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                     }
                     OpCode::AMp => {
-                        let weapon_id = read_cur_varint(&mut cursor)? as u16;
+                        let weapon_id = read_cur_varint(&mut cursor)? as u8;
                         let max_ammo = read_cur_varint(&mut cursor)? as u16;
+                        let weapon_type: Option<WeaponType> = FromPrimitive::from_u8(weapon_id);
 
-                        game_scene.player.inventory.add_weapon(weapon_id, max_ammo);
+                        if let Some(wtype) = weapon_type {
+                            game_scene.inventory.add_weapon(wtype, max_ammo);
+                        }
 
                         exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                     }
                     OpCode::AMm => {
-                        let weapon_id = read_cur_varint(&mut cursor)? as u16;
+                        let weapon_id = read_cur_varint(&mut cursor)? as u8;
+                        let weapon_type: Option<WeaponType> = FromPrimitive::from_u8(weapon_id);
 
-                        game_scene.player.inventory.remove_weapon(weapon_id);
+                        if let Some(wtype) = weapon_type {
+                            game_scene.inventory.remove_weapon(wtype);
+                        }
 
                         exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                     }
                     OpCode::AEp => {
-                        game_scene.player.inventory.refill_all_ammo();
+                        game_scene.inventory.refill_all_ammo();
 
                         exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                     }
                     OpCode::ZAM => {
-                        game_scene.player.inventory.reset_all_weapon_xp();
+                        game_scene.inventory.reset_all_weapon_xp();
 
                         exec_state = TextScriptExecutionState::Running(event, cursor.position() as u32);
                     }

src/weapon.rs

@@ -0,0 +1,146 @@
+use num_derive::FromPrimitive;
+
+use crate::bullet::BulletManager;
+use crate::caret::CaretType;
+use crate::common::Direction;
+use crate::player::Player;
+use crate::SharedGameState;
+
+#[derive(PartialEq, Eq, Copy, Clone, FromPrimitive)]
+#[repr(u8)]
+pub enum WeaponType {
+    None = 0,
+    Snake = 1,
+    PolarStar = 2,
+    Fireball = 3,
+    MachineGun = 4,
+    MissileLauncher = 5,
+    Bubbler = 7,
+    Sword = 9,
+    SuperMissileLauncher = 10,
+    Nemesis = 12,
+    Spur = 13,
+}
+
+#[derive(Clone)]
+pub struct Weapon {
+    pub wtype: WeaponType,
+    pub level: WeaponLevel,
+    pub experience: u16,
+    pub ammo: u16,
+    pub max_ammo: u16,
+}
+
+#[derive(Debug, PartialEq, Eq, Copy, Clone)]
+#[repr(u8)]
+pub enum WeaponLevel {
+    None = 0,
+    Level1 = 1,
+    Level2 = 2,
+    Level3 = 3,
+}
+
+impl Weapon {
+    pub fn new(wtype: WeaponType, level: WeaponLevel, experience: u16, ammo: u16, max_ammo: u16) -> Weapon {
+        Weapon {
+            wtype,
+            level,
+            experience,
+            ammo,
+            max_ammo,
+        }
+    }
+
+    pub fn consume_ammo(&mut self, ammo: u16) -> bool {
+        if self.max_ammo == 0 {
+            return true;
+        }
+
+        if self.ammo >= ammo {
+            self.ammo -= ammo;
+            return true;
+        }
+
+        false
+    }
+
+    pub fn shoot_bullet_polar_star(&mut self, player: &Player, bullet_manager: &mut BulletManager, state: &mut SharedGameState) {
+        if state.key_trigger.fire() && bullet_manager.count_bullets_multi([4, 5, 6]) < 2 {
+            let btype = match self.level {
+                WeaponLevel::Level1 => { 4 }
+                WeaponLevel::Level2 => { 5 }
+                WeaponLevel::Level3 => { 6 }
+                WeaponLevel::None => { unreachable!() }
+            };
+
+            if !self.consume_ammo(1) {
+                // todo: play sound 37
+                return;
+            }
+
+            if player.up {
+                match player.direction {
+                    Direction::Left => {
+                        bullet_manager.create_bullet(player.x - 0x200, player.y - 8 * 0x200, btype, Direction::Up, &state.constants);
+                        state.create_caret(player.x - 0x200, player.y - 8 * 0x200, CaretType::Shoot, Direction::Left);
+                    }
+                    Direction::Right => {
+                        bullet_manager.create_bullet(player.x + 0x200, player.y - 8 * 0x200, btype, Direction::Up, &state.constants);
+                        state.create_caret(player.x + 0x200, player.y - 8 * 0x200, CaretType::Shoot, Direction::Left);
+                    }
+                    _ => { unreachable!() }
+                }
+            } else if player.down {
+                match player.direction {
+                    Direction::Left => {
+                        bullet_manager.create_bullet(player.x - 0x200, player.y + 8 * 0x200, btype, Direction::Bottom, &state.constants);
+                        state.create_caret(player.x - 0x200, player.y + 8 * 0x200, CaretType::Shoot, Direction::Left);
+                    }
+                    Direction::Right => {
+                        bullet_manager.create_bullet(player.x + 0x200, player.y + 8 * 0x200, btype, Direction::Bottom, &state.constants);
+                        state.create_caret(player.x + 0x200, player.y + 8 * 0x200, CaretType::Shoot, Direction::Left);
+                    }
+                    _ => { unreachable!() }
+                }
+            } else {
+                match player.direction {
+                    Direction::Left => {
+                        bullet_manager.create_bullet(player.x - 6 * 0x200, player.y + 3 * 0x200, btype, Direction::Left, &state.constants);
+                        state.create_caret(player.x - 6 * 0x200, player.y + 3 * 0x200, CaretType::Shoot, Direction::Left);
+                    }
+                    Direction::Right => {
+                        bullet_manager.create_bullet(player.x + 6 * 0x200, player.y + 3 * 0x200, btype, Direction::Right, &state.constants);
+                        state.create_caret(player.x + 6 * 0x200, player.y + 3 * 0x200, CaretType::Shoot, Direction::Right);
+                    }
+                    _ => { unreachable!() }
+                }
+            }
+
+            if self.level == WeaponLevel::Level3 {
+                // todo play sound 49
+            } else {
+                // todo play sound 32
+            }
+        }
+    }
+
+    pub fn shoot_bullet(&mut self, player: &Player, bullet_manager: &mut BulletManager, state: &mut SharedGameState) {
+        if player.cond.hidden() {
+            return;
+        }
+
+        match self.wtype {
+            WeaponType::None => {}
+            WeaponType::Snake => {}
+            WeaponType::PolarStar => { self.shoot_bullet_polar_star(player, bullet_manager, state) }
+            WeaponType::Fireball => {}
+            WeaponType::MachineGun => {}
+            WeaponType::MissileLauncher => {}
+            WeaponType::Bubbler => {}
+            WeaponType::Sword => {}
+            WeaponType::SuperMissileLauncher => {}
+            WeaponType::Nemesis => {}
+            WeaponType::Spur => {}
+        }
+    }
+}