feat: port machine gun

assets/elements/item/machine_gun/bullet/machine_gun.bullet.yaml

@@ -0,0 +1,11 @@
+lifetime: 0.65
+speed: 650
+body_diameter: 15
+atlas: ./machine_gun_bullet.atlas.yaml
+
+explosion_fps: 12
+explosion_frames: 3
+explosion_volume: 0.025
+explosion_lifetime: 0.4
+explosion_sound: ../explosion/bullet_hit_dull.ogg
+explosion_atlas: ../explosion/explosion.atlas.yaml

assets/elements/item/machine_gun/bullet/machine_gun_bullet.atlas.yaml

@@ -0,0 +1,4 @@
+image: ./machine_gun_bullet.png
+tile_size: [30, 4]
+rows: 1
+columns: 1

assets/elements/item/machine_gun/explosion/explosion.atlas.yaml

@@ -0,0 +1,4 @@
+image: ./explosion.png
+tile_size: [11, 11]
+rows: 1
+columns: 4

assets/elements/item/machine_gun/machine_gun.atlas.yaml

@@ -0,0 +1,4 @@
+image: ./machine_gun.png
+tile_size: [80, 24]
+rows: 2
+columns: 2

assets/elements/item/machine_gun/machine_gun.element.yaml

@@ -1,2 +1,3 @@
-name: Machine Gun
+name: MachineGun
 category: Weapons
+data: machine_gun.yaml

assets/elements/item/machine_gun/machine_gun.yaml

@@ -0,0 +1,21 @@
+atlas: ./machine_gun.atlas.yaml
+
+max_ammo: 25
+cooldown: 125ms
+empty_cooldown: 600ms
+bullet_meta: ./bullet/machine_gun.bullet.yaml
+bullet_spread: 0.1
+
+shoot_sound_volume: 0.1
+shoot_sound: ./shoot/shoot.ogg
+empty_shoot_sound_volume: 0.1
+empty_shoot_sound: ./shoot/gun_empty.ogg
+
+bounciness: 0.3
+can_rotate: true
+body_size: [32, 8]
+fin_anim: grab_2
+angular_velocity: 0.1
+throw_velocity: 360
+grab_offset: [13, -3]
+kickback: 75

assets/game.yaml

@@ -346,6 +346,7 @@ core:
     - /elements/item/jellyfish/jellyfish.element.yaml
     - /elements/item/kick_bomb/kick_bomb.element.yaml
     - /elements/item/mine/mine.element.yaml
+    - /elements/item/machine_gun/machine_gun.element.yaml
     - /elements/item/musket/musket.element.yaml
     - /elements/item/buss/buss.element.yaml
     - /elements/item/periscope/periscope.element.yaml

assets/map/levels/level_7.map.yaml

@@ -1173,7 +1173,7 @@ layers:
   - pos:
     - 216.0
     - 310.5
-    element: /elements/item/musket/musket.element.yaml
+    element: /elements/item/machine_gun/machine_gun.element.yaml
   - pos:
     - 248.0
     - 438.5

src/core/elements.rs

@@ -15,6 +15,7 @@ pub mod flappy_jellyfish;
 pub mod grenade;
 pub mod jellyfish;
 pub mod kick_bomb;
+pub mod machine_gun;
 pub mod mine;
 pub mod musket;
 pub mod periscope;
@@ -31,9 +32,9 @@ pub mod urchin;
 pub mod prelude {
     pub use super::{
         buss::*, crab::*, crate_item::*, decoration::*, fish_school::*, grenade::*, jellyfish::*,
-        kick_bomb::*, mine::*, musket::*, periscope::*, player_spawner::*, slippery::*,
-        slippery_seaweed::*, snail::*, spike::*, sproinger::*, stomp_boots::*, sword::*, urchin::*,
-        *,
+        kick_bomb::*, machine_gun::*, mine::*, musket::*, periscope::*, player_spawner::*,
+        slippery::*, slippery_seaweed::*, snail::*, spike::*, sproinger::*, stomp_boots::*,
+        sword::*, urchin::*, *,
     };
 }
 
@@ -316,6 +317,7 @@ install_plugins!(
     jellyfish,
     kick_bomb,
     mine,
+    machine_gun,
     musket,
     buss,
     player_spawner,

src/core/elements/buss.rs

@@ -188,14 +188,15 @@ fn update(
             // If the item is being used
             let item_used = items_used.remove(entity).is_some();
             if item_used && buss.cooldown.finished() {
+                // Reset fire cooldown
+                buss.cooldown = Timer::new(*cooldown, TimerMode::Once);
                 // Empty
                 if buss.ammo.eq(&0) {
                     audio_center.play_sound(*empty_shoot_sound, *empty_shoot_sound_volume);
                     continue;
                 }
 
-                // Reset fire cooldown and subtract ammo
-                buss.cooldown = Timer::new(*cooldown, TimerMode::Once);
+                // Subtract ammo
                 buss.ammo = buss.ammo.saturating_sub(1).clamp(0, buss.ammo);
                 audio_center.play_sound(*shoot_sound, *shoot_sound_volume);