Add some blood effects

credits.toml

@@ -158,3 +158,9 @@ name = "Fantozzi"
 [[people.credits]]
 credit = "Fantozzi's Footsteps (Grass/Sand & Stone)"
 link = "https://opengameart.org/content/fantozzis-footsteps-grasssand-stone"
+
+[[people]]
+name = "TobiasM"
+[[people.credits]]
+credit = "Blood splat"
+link = "https://opengameart.org/content/blood-splat"

godot/raw_assets/blood_splat.png.import

@@ -0,0 +1,40 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cnahou6bg32pu"
+path="res://.godot/imported/blood_splat.png-2bef76897d4f45e457d6e9899a1358ed.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://raw_assets/blood_splat.png"
+dest_files=["res://.godot/imported/blood_splat.png-2bef76897d4f45e457d6e9899a1358ed.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/uastc_level=0
+compress/rdo_quality_loss=0.0
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/channel_remap/red=0
+process/channel_remap/green=1
+process/channel_remap/blue=2
+process/channel_remap/alpha=3
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

godot/scenes/player/blood_decal.tscn

@@ -0,0 +1,9 @@
+[gd_scene format=3 uid="uid://c1sc6yl56mi0s"]
+
+[ext_resource type="Texture2D" uid="uid://cnahou6bg32pu" path="res://raw_assets/blood_splat.png" id="1_1rw23"]
+
+[node name="bullet_hole_decal" type="Node3D" unique_id=18163478]
+
+[node name="decal" type="Decal" parent="." unique_id=1515351623]
+size = Vector3(1, 1, 1)
+texture_albedo = ExtResource("1_1rw23")

godot/scenes/player/effects.tscn

@@ -11,6 +11,7 @@
 [ext_resource type="AudioStream" uid="uid://dpafq3gxer7qf" path="res://raw_assets/sfx/footsteps_congusbongus/tile/0.ogg" id="8_7a25g"]
 [ext_resource type="AudioStream" uid="uid://fn5olcnrb1jn" path="res://raw_assets/sfx/footsteps_congusbongus/water/2.ogg" id="9_k2vl2"]
 [ext_resource type="AudioStream" uid="uid://br64dea537kkw" path="res://raw_assets/sfx/footsteps_congusbongus/wood/0.ogg" id="10_x30cj"]
+[ext_resource type="PackedScene" uid="uid://c1sc6yl56mi0s" path="res://scenes/player/blood_decal.tscn" id="11_otyku"]
 
 [sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_1cgct"]
 particle_flag_align_y = true
@@ -57,6 +58,7 @@ footstep_sounds = Dictionary[String, AudioStream]({
 "Wood": ExtResource("10_x30cj")
 })
 walk_sfx_cd = 0.5
+blood_decal = ExtResource("11_otyku")
 
 [node name="splorch" type="GPUParticles3D" parent="." unique_id=986677517]
 emitting = false

rust/src/player/ball.rs

@@ -94,10 +94,10 @@ impl Ball {
 
 #[godot_dyn]
 impl Shootable for Ball {
-    fn on_shoot(&mut self, _: DamageSource, damage: i32, dir: Vector3) {
+    fn on_shoot(&mut self, _: DamageSource, damage: i32, delta: Vector3) {
         let prev_velocity = self.base().get_linear_velocity();
         let force = damage as f32 / 10.;
         self.base_mut()
-            .set_linear_velocity(prev_velocity + dir * force);
+            .set_linear_velocity(prev_velocity + delta.normalized() * force);
     }
 }

rust/src/player/effects.rs

@@ -1,10 +1,12 @@
-use std::collections::HashMap;
+use std::{collections::HashMap, f32::consts::PI};
 
 use godot::{
-    classes::{AudioStream, AudioStreamPlayer3D, GpuParticles3D},
+    classes::{AudioStream, AudioStreamPlayer3D, GpuParticles3D, RandomNumberGenerator},
     prelude::*,
 };
 
+use crate::{game::Game, util::shotgun_ray};
+
 #[derive(Debug, Clone, Copy, GodotConvert, Export, Var, Default, PartialEq, PartialOrd, Eq)]
 #[godot(via = GString)]
 pub enum FootstepKind {
@@ -36,6 +38,10 @@ pub struct PlayerEffects {
     footstep_sounds: Dictionary<FootstepKind, Option<Gd<AudioStream>>>,
     #[export]
     walk_sfx_cd: f64,
+    #[export]
+    blood_decal: Option<Gd<PackedScene>>,
+
+    rng: Gd<RandomNumberGenerator>,
 
     walk_sfx_cd_remaining: f64,
 
@@ -93,4 +99,44 @@ impl PlayerEffects {
             sfx.set_stream(&sound);
         }
     }
+
+    pub fn shoot_blood(&mut self, delta: Vector3, force: f32) {
+        self.run_deferred(move |s| {
+            if let Some(mut game) = Game::singleton()
+                && let Some(map) = &mut game.bind_mut().current_map
+                && let Some(prefab) = &s.blood_decal
+            {
+                let results = shotgun_ray(
+                    s.base().get_global_position(),
+                    s.base().get_global_position() + delta,
+                    s.base().get_basis().col_c(),
+                    &s.base().get_world_3d(),
+                    &Array::new(),
+                    (20. / delta.length()) as u8,
+                    (((PI / 4.) * force) / delta.length()).min(PI / 2.),
+                    10. + delta.length() / 3.,
+                    None,
+                );
+
+                let mut decal_results = Vec::new();
+                for _ in 0..(force * 5.) as usize {
+                    if let Some(result) = results
+                        .get(s.rng.randi_range(0, results.len() as i32 - 1) as usize)
+                        .cloned()
+                    {
+                        decal_results.push(result);
+                    }
+                }
+                godot_print!("{:?}", decal_results);
+
+                for result in decal_results {
+                    let mut decal = prefab.instantiate_as::<Node3D>();
+                    map.add_child(&decal);
+                    decal.set_global_position(result.position);
+                    let quat = Quaternion::from_rotation_arc(Vector3::UP, result.normal);
+                    decal.set_global_rotation(quat.get_euler());
+                }
+            }
+        });
+    }
 }

rust/src/player/local_player.rs

@@ -939,7 +939,12 @@ impl LocalPlayer {
 
 #[godot_dyn]
 impl Shootable for LocalPlayer {
-    fn on_shoot(&mut self, source: DamageSource, damage: i32, _: Vector3) {
+    fn on_shoot(&mut self, source: DamageSource, damage: i32, delta: Vector3) {
+        if self.can_take_damage(&source)
+            && let Some(fx) = &mut self.effects
+        {
+            fx.bind_mut().shoot_blood(delta, damage as f32 / 100.);
+        }
         self.take_damage(source, damage, true);
     }
 }

rust/src/player/remote_player.rs

@@ -501,7 +501,12 @@ impl RemotePlayer {
 
 #[godot_dyn]
 impl Shootable for RemotePlayer {
-    fn on_shoot(&mut self, source: DamageSource, damage: i32, _: Vector3) {
+    fn on_shoot(&mut self, source: DamageSource, damage: i32, delta: Vector3) {
+        if self.can_take_damage(&source)
+            && let Some(fx) = &mut self.effects
+        {
+            fx.bind_mut().shoot_blood(delta, damage as f32 / 100.);
+        }
         self.take_damage(source, damage, true);
     }
 }

rust/src/player/weapon.rs

@@ -104,11 +104,13 @@ impl Weapon for Raygun {
                 });
             }
 
-            let dir = (to - source.get_global_position()).normalized();
+            let beam_dir = (to - source.get_global_position()).normalized();
             let beam_end = target
                 .as_ref()
                 .map(|r| r.position)
-                .unwrap_or(source.get_global_position() + dir * 100.);
+                .unwrap_or(source.get_global_position() + beam_dir * 100.);
+            let delta = beam_end - source.get_global_position();
+            godot_print!("{}", delta);
 
             if let Some(prefab) = &self.bullet_prefab
                 && play_fx
@@ -138,7 +140,7 @@ impl Weapon for Raygun {
                         shootable.dyn_bind_mut().on_shoot(
                             DamageSource::Player(player_id),
                             100,
-                            dir.normalized(),
+                            delta,
                         );
                     });
                 }