Add resource decay animations, closes #67

assets/models/primitives/icosphere.obj

@@ -0,0 +1,78 @@
+# Blender v3.0.0 OBJ File: ''
+# www.blender.org
+o Icosphere_Icosphere.001
+v 0.000000 -1.000000 0.000000
+v 0.723600 -0.447215 0.525720
+v -0.276385 -0.447215 0.850640
+v -0.894425 -0.447215 0.000000
+v -0.276385 -0.447215 -0.850640
+v 0.723600 -0.447215 -0.525720
+v 0.276385 0.447215 0.850640
+v -0.723600 0.447215 0.525720
+v -0.723600 0.447215 -0.525720
+v 0.276385 0.447215 -0.850640
+v 0.894425 0.447215 0.000000
+v 0.000000 1.000000 0.000000
+vt 0.181819 0.000000
+vt 0.272728 0.157461
+vt 0.090910 0.157461
+vt 0.363637 0.000000
+vt 0.454546 0.157461
+vt 0.909091 0.000000
+vt 1.000000 0.157461
+vt 0.818182 0.157461
+vt 0.727273 0.000000
+vt 0.636364 0.157461
+vt 0.545455 0.000000
+vt 0.363637 0.314921
+vt 0.181819 0.314921
+vt 0.909091 0.314921
+vt 0.727273 0.314921
+vt 0.545455 0.314921
+vt 0.000000 0.314921
+vt 0.272728 0.472382
+vt 0.090910 0.472382
+vt 0.818182 0.472382
+vt 0.636364 0.472382
+vt 0.454546 0.472382
+vn 0.1876 -0.7947 0.5774
+vn 0.6071 -0.7947 0.0000
+vn -0.4911 -0.7947 0.3568
+vn -0.4911 -0.7947 -0.3568
+vn 0.1876 -0.7947 -0.5774
+vn 0.9822 -0.1876 0.0000
+vn 0.3035 -0.1876 0.9342
+vn -0.7946 -0.1876 0.5774
+vn -0.7946 -0.1876 -0.5774
+vn 0.3035 -0.1876 -0.9342
+vn 0.7946 0.1876 0.5774
+vn -0.3035 0.1876 0.9342
+vn -0.9822 0.1876 0.0000
+vn -0.3035 0.1876 -0.9342
+vn 0.7946 0.1876 -0.5774
+vn 0.4911 0.7947 0.3568
+vn -0.1876 0.7947 0.5774
+vn -0.6071 0.7947 0.0000
+vn -0.1876 0.7947 -0.5774
+vn 0.4911 0.7947 -0.3568
+s off
+f 1/1/1 2/2/1 3/3/1
+f 2/2/2 1/4/2 6/5/2
+f 1/6/3 3/7/3 4/8/3
+f 1/9/4 4/8/4 5/10/4
+f 1/11/5 5/10/5 6/5/5
+f 2/2/6 6/5/6 11/12/6
+f 3/3/7 2/2/7 7/13/7
+f 4/8/8 3/7/8 8/14/8
+f 5/10/9 4/8/9 9/15/9
+f 6/5/10 5/10/10 10/16/10
+f 2/2/11 11/12/11 7/13/11
+f 3/3/12 7/13/12 8/17/12
+f 4/8/13 8/14/13 9/15/13
+f 5/10/14 9/15/14 10/16/14
+f 6/5/15 10/16/15 11/12/15
+f 7/13/16 11/12/16 12/18/16
+f 8/17/17 7/13/17 12/19/17
+f 9/15/18 8/14/18 12/20/18
+f 10/16/19 9/15/19 12/21/19
+f 11/12/20 10/16/20 12/22/20

assets/models/primitives/icosphere.obj.import

@@ -0,0 +1,22 @@
+[remap]
+
+importer="wavefront_obj"
+importer_version=1
+type="Mesh"
+uid="uid://b4iu37hx5nsmp"
+path="res://.godot/imported/icosphere.obj-e49a82048b23f2140e3aa30c9b8b65ca.mesh"
+
+[deps]
+
+files=["res://.godot/imported/icosphere.obj-e49a82048b23f2140e3aa30c9b8b65ca.mesh"]
+
+source_file="res://assets/models/primitives/icosphere.obj"
+dest_files=["res://.godot/imported/icosphere.obj-e49a82048b23f2140e3aa30c9b8b65ca.mesh", "res://.godot/imported/icosphere.obj-e49a82048b23f2140e3aa30c9b8b65ca.mesh"]
+
+[params]
+
+generate_tangents=true
+scale_mesh=Vector3(1, 1, 1)
+offset_mesh=Vector3(0, 0, 0)
+optimize_mesh=true
+force_disable_mesh_compression=false

source/match/units/non-player/ResourceUnit.gd

@@ -1,13 +1,25 @@
 extends Area3D
 
+const ResourceDecayAnimation = preload("res://source/match/utils/ResourceDecayAnimation.tscn")
+
 var radius = null:
 	set = _ignore,
 	get = _get_radius
 
 
+func _enter_tree():
+	tree_exiting.connect(_animate_decay)
+
+
 func _ignore(_value):
 	pass
 
 
 func _get_radius():
 	return find_child("MovementObstacle").radius
+
+
+func _animate_decay():
+	var decay_animation = ResourceDecayAnimation.instantiate()
+	decay_animation.global_transform = global_transform
+	get_parent().add_child.call_deferred(decay_animation)

source/match/utils/ResourceDecayAnimation.gd

@@ -0,0 +1,9 @@
+extends Node3D
+
+@onready var _particles = find_child("GPUParticles3D")
+
+
+func _ready():
+	await get_tree().physics_frame  # wait one frame for transform to propagate
+	_particles.finished.connect(queue_free)
+	_particles.emitting = true

source/match/utils/ResourceDecayAnimation.tscn

@@ -0,0 +1,47 @@
+[gd_scene load_steps=9 format=3 uid="uid://th6p6c16rur5"]
+
+[ext_resource type="ArrayMesh" uid="uid://b4iu37hx5nsmp" path="res://assets/models/primitives/icosphere.obj" id="1_2m585"]
+[ext_resource type="Script" path="res://source/match/utils/ResourceDecayAnimation.gd" id="1_wnl5r"]
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_eoeij"]
+transparency = 1
+vertex_color_use_as_albedo = true
+
+[sub_resource type="Gradient" id="Gradient_n80mp"]
+colors = PackedColorArray(1, 1, 1, 1, 1, 1, 1, 0)
+
+[sub_resource type="GradientTexture1D" id="GradientTexture1D_v2005"]
+gradient = SubResource("Gradient_n80mp")
+
+[sub_resource type="Curve" id="Curve_eymjl"]
+max_value = 3.0
+_data = [Vector2(0, 0.396055), 0.0, 0.0, 0, 0, Vector2(0.0147602, 3), 0.0, 0.0, 0, 0]
+point_count = 2
+
+[sub_resource type="CurveTexture" id="CurveTexture_om0lt"]
+curve = SubResource("Curve_eymjl")
+
+[sub_resource type="ParticleProcessMaterial" id="ParticleProcessMaterial_4ju5i"]
+emission_shape_offset = Vector3(0, 0.1, 0)
+emission_shape = 1
+emission_sphere_radius = 0.5
+gravity = Vector3(0, 0.1, 0)
+linear_accel_min = 0.01
+linear_accel_max = 0.05
+scale_min = 0.05
+scale_max = 0.15
+scale_over_velocity_curve = SubResource("CurveTexture_om0lt")
+color = Color(0.960784, 0.745098, 0.654902, 1)
+color_ramp = SubResource("GradientTexture1D_v2005")
+
+[node name="ResourceDecayAnimation" type="Node3D"]
+script = ExtResource("1_wnl5r")
+
+[node name="GPUParticles3D" type="GPUParticles3D" parent="."]
+material_override = SubResource("StandardMaterial3D_eoeij")
+emitting = false
+one_shot = true
+speed_scale = 2.0
+explosiveness = 0.79
+process_material = SubResource("ParticleProcessMaterial_4ju5i")
+draw_pass_1 = ExtResource("1_2m585")

tests/manual/TestAllUnits.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=23 format=3 uid="uid://b65yuqx0iw62f"]
+[gd_scene load_steps=27 format=3 uid="uid://b65yuqx0iw62f"]
 
 [ext_resource type="PackedScene" uid="uid://camns8fqod8d4" path="res://source/match/Match.tscn" id="1_oiu0k"]
 [ext_resource type="Script" path="res://tests/manual/Match.gd" id="2_ghr3h"]
@@ -10,9 +10,12 @@
 [ext_resource type="PackedScene" uid="uid://h5lqor1xl2sf" path="res://source/match/units/VehicleFactory.tscn" id="4_m1xri"]
 [ext_resource type="Shader" path="res://source/shaders/3d/simple_fog_of_war.gdshader" id="5_f2ny6"]
 [ext_resource type="PackedScene" uid="uid://b8pckq1xn44ss" path="res://source/match/units/AntiGroundTurret.tscn" id="5_g67iu"]
+[ext_resource type="Material" uid="uid://co8vfcoqqs5i8" path="res://source/match/resources/materials/terrain.material.tres" id="5_q15cp"]
 [ext_resource type="PackedScene" uid="uid://cbe63rdjw7y4p" path="res://source/match/maps/PlainAndSimple.tscn" id="5_t3ibh"]
 [ext_resource type="PackedScene" uid="uid://dh8dedilkhuoy" path="res://source/match/players/human/Human.tscn" id="5_tlbff"]
+[ext_resource type="PackedScene" uid="uid://bf3jjdafqvh0w" path="res://source/match/units/non-player/ResourceA.tscn" id="6_414qe"]
 [ext_resource type="PackedScene" uid="uid://cfa8cpnpk5pcb" path="res://source/match/units/AntiAirTurret.tscn" id="6_lglnp"]
+[ext_resource type="PackedScene" uid="uid://bufgjfa3ne3uk" path="res://source/match/units/non-player/ResourceB.tscn" id="7_g0wbf"]
 [ext_resource type="PackedScene" uid="uid://i58ffvwxbbwm" path="res://source/match/units/Tank.tscn" id="9_csgr3"]
 [ext_resource type="PackedScene" uid="uid://bf0r3fovbvf1m" path="res://source/match/units/Worker.tscn" id="10_c3eov"]
 [ext_resource type="Shader" path="res://source/shaders/2d/white_transparent.gdshader" id="16_mqpbu"]
@@ -23,6 +26,12 @@ players = Array[Resource]([])
 visibility = 1
 visible_player = 0
 
+[sub_resource type="PlaneMesh" id="PlaneMesh_ynnr0"]
+resource_local_to_scene = true
+material = ExtResource("5_q15cp")
+size = Vector2(50, 50)
+center_offset = Vector3(25, 0, 25)
+
 [sub_resource type="ViewportTexture" id="ViewportTexture_v46ss"]
 viewport_path = NodePath("FogOfWar/CombinedViewport")
 
@@ -53,6 +62,25 @@ settings = SubResource("Resource_rpdec")
 
 [node name="Map" parent="." index="0" instance=ExtResource("5_t3ibh")]
 
+[node name="Terrain" parent="Map/Geometry" index="1"]
+mesh = SubResource("PlaneMesh_ynnr0")
+
+[node name="ResourceA13" parent="Map/Resources" index="2" instance=ExtResource("6_414qe")]
+transform = Transform3D(0.157813, 0, -0.987469, 0, 1, 0, 0.987469, 0, 0.157813, 8.48506, -7.15256e-06, 13.997)
+resource_a = 2
+
+[node name="ResourceA14" parent="Map/Resources" index="3" instance=ExtResource("6_414qe")]
+transform = Transform3D(0.157813, 0, -0.987469, 0, 1, 0, 0.987469, 0, 0.157813, 10.6949, -7.15256e-06, 16.48)
+resource_a = 2
+
+[node name="ResourceA15" parent="Map/Resources" index="4" instance=ExtResource("6_414qe")]
+transform = Transform3D(0.157813, 0, -0.987469, 0, 1, 0, 0.987469, 0, 0.157813, 11.6939, -7.15256e-06, 17.7958)
+resource_a = 2
+
+[node name="ResourceB5" parent="Map/Resources" index="10" instance=ExtResource("7_g0wbf")]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 12.9437, -7.62939e-06, 16.1825)
+resource_b = 2
+
 [node name="Human" parent="Players" index="0" instance=ExtResource("5_tlbff")]
 
 [node name="CommandCenter" parent="Players/Human" index="1" instance=ExtResource("2_rm00b")]
@@ -90,3 +118,5 @@ material = SubResource("ShaderMaterial_i0ai6")
 
 [node name="MinimapTextureRect" parent="HUD/MarginContainer/Minimap/MarginContainer" index="1"]
 texture = SubResource("ViewportTexture_ltqxy")
+
+[editable path="Map"]