Particle effect when chunking shot

assets/sprites/particles/smudge.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dy310v1j5vexd"
+path="res://.godot/imported/smudge.png-6be29afb408991155df57310104cb1f8.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://assets/sprites/particles/smudge.png"
+dest_files=["res://.godot/imported/smudge.png-6be29afb408991155df57310104cb1f8.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=true
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+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=0

levels/terrain_test/terrain_test.gd

@@ -39,3 +39,8 @@ func _process(_delta: float) -> void:
 		spawn_balls(DROP_SPAWN_GROUP)
 	if Input.is_action_just_pressed("debug_3"):
 		spawn_balls(PUTT_SPAWN_GROUP, PUTT_VEC)
+
+	if Input.is_action_just_pressed("ui_page_up"):
+		Engine.time_scale *= 2.0
+	if Input.is_action_just_pressed("ui_page_down"):
+		Engine.time_scale *= 0.5

src/equipment/balls/physics_ball/ball_particle_effects.gd

@@ -3,6 +3,7 @@ class_name BallParticleEffects extends Node3D
 
 @export var splash_effect_scene: PackedScene
 
+@onready var chunk_particles: GPUParticles3D = %ChunkParticles
 @onready var sand_particles: GPUParticles3D = %SandParticles
 
 @onready var ball: GameBall = $".."
@@ -14,11 +15,23 @@ func play_splash() -> void:
 	effect.global_position = ball.global_position
 
 
+func _physics_process(_delta: float) -> void:
+	global_rotation = Vector3.ZERO
+
+
 func play_effect(terrain: Terrain.Type) -> void:
 	global_rotation = Vector3.ZERO
 	match terrain:
 		Terrain.Type.SAND:
 			# Adjust sand particle direction
 			var material: ParticleProcessMaterial = sand_particles.process_material
-			material.direction = -ball.linear_velocity.normalized()
+			material.direction = -ball.current_gravity.normalized()
 			sand_particles.emitting = true
+
+
+func play_chunk(chunk_scale: float) -> void:
+	print_debug("Playing chunk effect, scale: ", chunk_scale)
+	chunk_particles.amount_ratio = chunk_scale
+	var material: ParticleProcessMaterial = chunk_particles.process_material
+	material.direction = -ball.current_gravity.normalized()
+	chunk_particles.emitting = true

src/equipment/balls/physics_ball/physics_ball.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=26 format=3 uid="uid://dfttci386ohip"]
+[gd_scene load_steps=30 format=3 uid="uid://dfttci386ohip"]
 
 [ext_resource type="Script" path="res://src/equipment/balls/physics_ball/game_ball.gd" id="1_iwh2u"]
 [ext_resource type="Resource" uid="uid://c6tt1hto75ex4" path="res://src/equipment/balls/physics_ball/normal_terrain_physics.tres" id="3_3gnie"]
@@ -12,8 +12,8 @@
 [ext_resource type="AudioStream" uid="uid://b5xx5t050i4p" path="res://assets/sound/sfx/ball/sand2.wav" id="11_ed8je"]
 [ext_resource type="AudioStream" uid="uid://dutumw1vj854w" path="res://assets/sound/sfx/ball/splash1.wav" id="11_xmj6n"]
 [ext_resource type="Script" path="res://src/equipment/balls/physics_ball/ball_particle_effects.gd" id="12_7krl6"]
-[ext_resource type="Texture2D" uid="uid://c47bkx508biqr" path="res://assets/sprites/particles/plasma.png" id="12_guipt"]
 [ext_resource type="PackedScene" uid="uid://cm4bb3lg4mfd2" path="res://src/world/effects/splash/splash_effect.tscn" id="12_qlrvx"]
+[ext_resource type="Texture2D" uid="uid://dy310v1j5vexd" path="res://assets/sprites/particles/smudge.png" id="14_el0o3"]
 
 [sub_resource type="PhysicsMaterial" id="PhysicsMaterial_u134x"]
 bounce = 0.8
@@ -105,6 +105,35 @@ playback_mode = 1
 streams_count = 1
 stream_0/stream = ExtResource("11_xmj6n")
 
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_706cj"]
+angle_min = -720.0
+angle_max = 720.0
+spread = 20.0
+initial_velocity_min = 1.0
+initial_velocity_max = 5.0
+scale_min = 0.0
+hue_variation_min = -0.02
+hue_variation_max = -2.23517e-08
+
+[sub_resource type="CompressedTexture2D" id="CompressedTexture2D_5u1jh"]
+load_path = "res://.godot/imported/smudge.png-6be29afb408991155df57310104cb1f8.ctex"
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_fbolh"]
+transparency = 1
+vertex_color_use_as_albedo = true
+albedo_color = Color(0.17, 0.12954, 0.0272, 1)
+albedo_texture = SubResource("CompressedTexture2D_5u1jh")
+texture_filter = 2
+billboard_mode = 3
+billboard_keep_scale = true
+particles_anim_h_frames = 1
+particles_anim_v_frames = 1
+particles_anim_loop = false
+
+[sub_resource type="QuadMesh" id="QuadMesh_npp3t"]
+material = SubResource("StandardMaterial3D_fbolh")
+size = Vector2(0.15, 0.15)
+
 [sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_mwiw1"]
 angle_min = -720.0
 angle_max = 720.0
@@ -119,9 +148,9 @@ hue_variation_max = -2.23517e-08
 [sub_resource type="StandardMaterial3D" id="StandardMaterial3D_v1i8b"]
 transparency = 1
 vertex_color_use_as_albedo = true
-albedo_color = Color(0.78, 0.70928, 0.5304, 1)
+albedo_color = Color(0.45, 0.4092, 0.306, 1)
-albedo_texture = ExtResource("12_guipt")
+albedo_texture = ExtResource("14_el0o3")
-texture_filter = 4
+texture_filter = 2
 billboard_mode = 3
 billboard_keep_scale = true
 particles_anim_h_frames = 1
@@ -206,6 +235,15 @@ unique_name_in_owner = true
 script = ExtResource("12_7krl6")
 splash_effect_scene = ExtResource("12_qlrvx")
 
+[node name="ChunkParticles" type="GPUParticles3D" parent="ParticleEffects"]
+unique_name_in_owner = true
+emitting = false
+amount = 12
+one_shot = true
+explosiveness = 1.0
+process_material = SubResource("ParticleProcessMaterial_706cj")
+draw_pass_1 = SubResource("QuadMesh_npp3t")
+
 [node name="SandParticles" type="GPUParticles3D" parent="ParticleEffects"]
 unique_name_in_owner = true
 emitting = false

src/player/shot_setup/shot_setup.gd

@@ -311,6 +311,9 @@ func take_shot() -> void:
 		game_ball.magnetic = club_type == Club.Type.IRON
 		game_ball.freeze = false
 		game_ball.apply_impulse(impulse, offset)
+		if not is_shot_good():
+			# Play chunk particle effect
+			game_ball.effects.play_chunk(absf(shot_curve) / (1.0 - NICE_THRESHOLD))
 
 	reset_prompt_timer.start()