Firearm shooting with a line almost perfect. Only need to change the m4 rotation values as it's rotated -90 on y axis. Apply inverse rotation on all transforms that shoot. And TODO: uncomment muzzle flash light code

src/comps/core/markers/firearm.rs

@@ -2,10 +2,19 @@ use bevy::{prelude::{Component, Quat, Vec3}, reflect::Reflect};
 
 use crate::logic::core::guns::{caliber::Caliber, spray_pattern::FirearmSprayPattern};
 
+#[derive(Default, Debug, Clone, Reflect)]
+pub struct FiringPoint {
+    pub forward: f32,
+    pub up: f32,
+    pub right: f32,
+}
+
 #[derive(Component, Clone, Reflect)]
 pub struct FirearmData {
     /// Where the bullets will come out of, and muzzle flash will be spawned out of.
-    pub firing_point: Vec3,
+    /// Also, this transform's .forward() should be pointing the same Vec3 as the barrel is
+    /// Global transform
+    pub firing_point: FiringPoint,
     pub caliber: Caliber,
     /// Placeholder until mags get implemented
     pub max_capacity: usize,

src/logic/core/guns/caliber.rs

@@ -6,3 +6,11 @@ pub enum Caliber {
     NATO556,
     Parabellum9mm,
 }
+impl Caliber {
+    pub fn range(&self) -> f32 {
+        match self {
+            Caliber::NATO556 => 750.0,
+            Caliber::Parabellum9mm => 250.0,
+        }
+    }
+}

src/logic/core/guns/firearm.rs

@@ -1,4 +1,4 @@
-use crate::comps::core::markers::{firearm::FirearmData, holdable::HoldableObjectData};
+use crate::comps::core::markers::{firearm::{FirearmData, FiringPoint}, holdable::HoldableObjectData};
 use bevy::prelude::*;
 
 use super::{caliber::Caliber, spray_pattern::FirearmSprayPattern};
@@ -14,7 +14,11 @@ impl Firearm {
         match self {
             Firearm::M4A1 => {
                 FirearmData {
-                    firing_point: Vec3 { x: -2.5, y: 0.0, z: 0.0 },
+                    firing_point: FiringPoint {
+                        forward: 1.0,
+                        up: 1.0,
+                        right: 0.0,
+                    },
                     caliber: Caliber::NATO556,
                     max_capacity: 30,
                     fire_rate: 800.0,
@@ -51,7 +55,11 @@ impl Firearm {
             },
             Firearm::Glock17 => {
                 FirearmData {
-                    firing_point: Vec3 { x: -2.5, y: 0.0, z: 0.0 },
+                    firing_point: FiringPoint {
+                        forward: 1.2,
+                        up: 0.445,
+                        right: 0.0,
+                    },
                     caliber: Caliber::Parabellum9mm,
                     max_capacity: 17,
                     fire_rate: 600.0,

src/logic/core/guns/shoot.rs

@@ -1,6 +1,6 @@
 use std::time::Duration;
 
-use bevy::prelude::*;
+use bevy::{prelude::*, render::render_resource::PrimitiveTopology};
 
 use crate::comps::core::markers::muzzle_flash::MuzzleFlashMarker;
 
@@ -8,12 +8,16 @@ use super::caliber::Caliber;
 
 pub fn shoot_bullet(
     mut commands: &mut Commands,
+    mut meshes: &mut ResMut<Assets<Mesh>>,
+    mut materials: &mut ResMut<Assets<StandardMaterial>>,
     firing_point: Transform,
-    towards: Vec3,
+    forward: Vec3,
+    up: Vec3,
     caliber: Caliber
 ) {
+    //let transform = Transform::from_translation(firing_point).look_at(target, up)
     // Spawn muzzle flash LIGHT
-    commands.spawn(
+    /*commands.spawn(
         (PointLightBundle {
             point_light: PointLight {
                 //252, 238, 128
@@ -27,7 +31,33 @@ pub fn shoot_bullet(
             visibility: Visibility::Visible,
             ..Default::default()
         }, MuzzleFlashMarker(Timer::new(Duration::from_millis(10), TimerMode::Once)))
+    );*/
+
+    println!("origin: {}", firing_point.translation);
+    println!("end: {}", firing_point.forward() * caliber.range());
+    commands.spawn(
+        MaterialMeshBundle {
+            mesh: {
+                let mut mesh = Mesh::new(PrimitiveTopology::LineStrip);
+                mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, Vec::from([Vec3::ZERO, forward * caliber.range()]));
+                meshes.add(mesh)
+            },
+            material: materials.add(StandardMaterial {
+                base_color: Color::GREEN,
+                ..Default::default()
+            }),
+            visibility: Visibility::Visible,
+            transform: firing_point,
+            ..Default::default()
+        }
     );
 
-    
 }
+
+/*
+meshes.add(box_2_mesh.into()),
+            material: materials.add(StandardMaterial {
+                base_color: Color::RED,
+                perceptual_roughness: 1.0,
+                ..default()
+            }), */

src/logic/core/player/hands.rs

@@ -26,6 +26,9 @@ pub fn capture_hand_usage(
 
     mut equipment_change_event_writer: EventWriter<EquipmentChangeEvent>,
     settings_screen_config: Res<SettingsScreenUIConfiguration>,
+
+    mut meshes: ResMut<Assets<Mesh>>,
+    mut materials: ResMut<Assets<StandardMaterial>>,
 ) {
     if !game_load_state.player_loaded {
         return;
@@ -108,8 +111,16 @@ pub fn capture_hand_usage(
                                         },
                                     };
                                     // TODO: Spawn Bullet & Muzzle flash
-                                    let firing_point_global = firearm_transform.translation().clone();
-                                    shoot_bullet(&mut commands, Transform::from_translation(firing_point_global + (firearm_transform.forward() * 1.5) + (firearm_transform.up() / 2.5)), firearm_data.firing_point, firearm_data.caliber.clone());
+                                    /*let firing_point_global = firearm_transform.translation().clone();
+                                    let firint_point_final = firing_point_global + (firearm_transform.forward() * 1.5) + (firearm_transform.up() / 2.5);
+                                    shoot_bullet(&mut commands, &mut meshes, &mut materials, Transform::from_translation(firint_point_final), firearm_transform.forward() * 10.0, firearm_data.caliber.clone());*/
+
+                                    let firearm_transform = firearm_transform.clone();
+                                    // TODO: M4 holdableobject data has a Y ROT of -90. Apply that rotation here if it exists.
+                                    let firing_point = firearm_transform.translation() + (firearm_transform.forward() * firearm_data.firing_point.forward) + (firearm_transform.up() * firearm_data.firing_point.up) + (firearm_transform.right() * firearm_data.firing_point.right);
+                                    let forward = firearm_transform.forward();
+                                    let up = firearm_transform.up();
+                                    shoot_bullet(&mut commands, &mut meshes, &mut materials, Transform::from_translation(firing_point), forward, up, firearm_data.caliber.clone());
                                     // Increment indexes and timers
                                     player_firing_info.current_round_index += 1;
                                     player_firing_info.last_shot_timestamp = time.elapsed_seconds();