Add a 3D Rigidbody character demo (#675)

Author: alan-man

3d/rigidbody_character/README.md

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+# Kinematic Character 3D
+
+RigidBody character demo for 3D using a capsule for the character.
+Cubes as RigidBodies spawn in the map from above to show interaction
+with the player (jump on them, gently push them), which would be
+impossible with a KinematicBody.
+
+Language: GDScript
+
+Renderer: GLES 3
+
+## How does it work?
+
+This demo uses a [`RigidBody`](https://docs.godotengine.org/en/stable/classes/class_rigidbody.html)
+for the player, and [`StaticBody`](https://docs.godotengine.org/en/latest/classes/class_staticbody.html)
+for the level. Each has colliders, the player moves itself via
+`apply_central_impulse()` in `_physics_process()`, and collides with the level.
+
+## Screenshots
+
+![Screenshot](screenshots/ingame.png)
+
+![Screenshot](screenshots/editor.png)
+

3d/rigidbody_character/cube_rigidbody.tscn

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+[gd_scene load_steps=5 format=2]
+
+[ext_resource path="res://models/white_wood.png" type="Texture" id=1]
+
+[sub_resource type="BoxShape" id=1]
+extents = Vector3( 0.5, 0.5, 0.5 )
+
+[sub_resource type="SpatialMaterial" id=3]
+resource_name = "Material"
+albedo_color = Color( 0.917647, 0.384314, 0.0823529, 1 )
+albedo_texture = ExtResource( 1 )
+roughness = 0.75
+
+[sub_resource type="CubeMesh" id=2]
+material = SubResource( 3 )
+size = Vector3( 1, 1, 1 )
+
+[node name="cube_rigidbody" type="RigidBody"]
+
+[node name="CollisionShape" type="CollisionShape" parent="."]
+shape = SubResource( 1 )
+
+[node name="MeshInstance" type="MeshInstance" parent="."]
+mesh = SubResource( 2 )
+material/0 = null

3d/rigidbody_character/cubelib.tres

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+[gd_resource type="Environment" load_steps=2 format=2]
+
+[sub_resource type="ProceduralSky" id=1]
+radiance_size = 1
+sky_top_color = Color( 0.219882, 0.193725, 0.366471, 1 )
+sky_horizon_color = Color( 0.342622, 0.0655002, 0.558935, 1 )
+sky_curve = 0.0490365
+ground_bottom_color = Color( 0.0342205, 0.0333383, 0.0322154, 1 )
+ground_horizon_color = Color( 0.148289, 0.138067, 0.125119, 1 )
+ground_curve = 0.25
+sun_latitude = 55.0
+sun_longitude = -80.0
+texture_size = 0
+
+[resource]
+background_mode = 2
+background_sky = SubResource( 1 )
+tonemap_mode = 2
+tonemap_white = 6.0
+ssao_blur = 1
+glow_levels/7 = true
+glow_strength = 0.79
+glow_bloom = 1.0
+glow_blend_mode = 0
+glow_bicubic_upscale = true

3d/rigidbody_character/default_env.tres

@@ -0,0 +1,35 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.png"
+dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

3d/rigidbody_character/gi_probe_data.res

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+extends Spatial
+
+# Random spawn of Rigidbody cubes.
+func _on_SpawnTimer_timeout():
+	var new_rb = preload("res://cube_rigidbody.tscn").instance()
+	new_rb.translation.y = 15
+	new_rb.translation.x = rand_range(-5, 5)
+	new_rb.translation.z = rand_range(-5, 5)
+	add_child(new_rb)

3d/rigidbody_character/icon.png

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+[gd_scene load_steps=11 format=2]
+
+[ext_resource path="res://cubelib.tres" type="MeshLibrary" id=1]
+[ext_resource path="res://player/cubio.tscn" type="PackedScene" id=2]
+[ext_resource path="res://models/cube.mesh" type="ArrayMesh" id=3]
+[ext_resource path="res://models/mushroom.glb" type="PackedScene" id=5]
+[ext_resource path="res://level.gd" type="Script" id=6]
+[ext_resource path="res://cube_rigidbody.tscn" type="PackedScene" id=7]
+
+[sub_resource type="BoxShape" id=1]
+margin = 0.001
+extents = Vector3( 0.5, 0.5, 0.5 )
+
+[sub_resource type="Animation" id=2]
+length = 10.0
+loop = true
+tracks/0/type = "value"
+tracks/0/path = NodePath(".:translation")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 1, 4, 6, 9, 10 ),
+"transitions": PoolRealArray( 1, -2, 1, -2, 1, 1 ),
+"update": 0,
+"values": [ Vector3( 0.5, 4.5, -2.5 ), Vector3( 0.5, 4.5, -2.5 ), Vector3( 0.5, 8.5, -2.5 ), Vector3( 0.5, 8.5, -2.5 ), Vector3( 0.5, 4.5, -2.5 ), Vector3( 0.5, 4.5, -2.5 ) ]
+}
+
+[sub_resource type="Animation" id=3]
+length = 10.0
+loop = true
+tracks/0/type = "value"
+tracks/0/path = NodePath(".:translation")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0, 2, 4.5, 6, 9 ),
+"transitions": PoolRealArray( 1, -2, 1, -2, 1 ),
+"update": 0,
+"values": [ Vector3( -3.5, 8.5, 4.5 ), Vector3( -3.5, 8.5, 4.5 ), Vector3( 3.5, 8.5, 4.5 ), Vector3( 3.5, 8.5, 4.5 ), Vector3( -3.5, 8.5, 4.5 ) ]
+}
+
+[sub_resource type="BoxShape" id=4]
+
+[node name="World" type="Spatial"]
+script = ExtResource( 6 )
+__meta__ = {
+"__editor_plugin_screen__": "3D"
+}
+
+[node name="GridMap" type="GridMap" parent="."]
+mesh_library = ExtResource( 1 )
+cell_size = Vector3( 1, 1, 1 )
+data = {
+"cells": PoolIntArray( 0, 0, 0, 1, 0, 0, 2, 0, 0, 3, 0, 0, 4, 0, 0, 65530, 0, 0, 65531, 0, 0, 65532, 0, 0, 65533, 0, 0, 65534, 0, 0, 65535, 0, 0, 196603, 0, 0, 196604, 0, 0, 524292, 0, 0, 589820, 0, 0, 786432, 0, 0, 851967, 0, 0, 0, 1, 0, 1, 1, 0, 2, 1, 0, 3, 1, 0, 4, 1, 0, 65530, 1, 0, 65531, 1, 0, 65532, 1, 0, 65533, 1, 0, 65534, 1, 0, 65535, 1, 0, 131075, 1, 0, 196603, 1, 0, 196604, 1, 0, 524292, 1, 0, 589820, 1, 0, 786432, 1, 0, 851967, 1, 0, 0, 2, 0, 1, 2, 0, 2, 2, 0, 3, 2, 0, 4, 2, 0, 65530, 2, 0, 65531, 2, 0, 65532, 2, 0, 65533, 2, 0, 65534, 2, 0, 65535, 2, 0, 131075, 2, 0, 196603, 2, 0, 196604, 2, 0, 524292, 2, 0, 589820, 2, 0, 786432, 2, 0, 786433, 2, 0, 851966, 2, 0, 851967, 2, 0, 0, 3, 0, 1, 3, 0, 2, 3, 0, 3, 3, 0, 4, 3, 0, 65530, 3, 0, 65531, 3, 0, 65532, 3, 0, 65533, 3, 0, 65534, 3, 0, 65535, 3, 0, 196603, 3, 0, 524291, 3, 0, 524292, 3, 0, 589820, 3, 0, 786432, 3, 0, 786433, 3, 0, 851966, 3, 0, 851967, 3, 0, 0, 4, 0, 1, 4, 0, 2, 4, 0, 3, 4, 0, 4, 4, 0, 65530, 4, 0, 65531, 4, 0, 65532, 4, 0, 65533, 4, 0, 65534, 4, 0, 65535, 4, 0, 196603, 4, 0, 0, 5, 0, 1, 5, 0, 2, 5, 0, 3, 5, 0, 4, 5, 0, 65530, 5, 0, 65531, 5, 0, 65532, 5, 0, 65533, 5, 0, 65534, 5, 0, 65535, 5, 0, 131075, 5, 0, 0, 6, 0, 1, 6, 0, 2, 6, 0, 3, 6, 0, 4, 6, 0, 65530, 6, 0, 65531, 6, 0, 65532, 6, 0, 65533, 6, 0, 65534, 6, 0, 65535, 6, 0, 131075, 6, 0, 196603, 6, 0, 0, 7, 0, 1, 7, 0, 2, 7, 0, 3, 7, 0, 4, 7, 0, 65530, 7, 0, 65531, 7, 0, 65532, 7, 0, 65533, 7, 0, 65534, 7, 0, 65535, 7, 0, 131075, 7, 0, 196603, 7, 0, 0, 8, 0, 1, 8, 0, 2, 8, 0, 3, 8, 0, 4, 8, 0, 65530, 8, 0, 65531, 8, 0, 65532, 8, 0, 65533, 8, 0, 65534, 8, 0, 65535, 8, 0, 131075, 8, 0, 196603, 8, 0, 196604, 8, 0, 0, 9, 0, 1, 9, 0, 2, 9, 0, 3, 9, 0, 4, 9, 0, 65530, 9, 0, 65531, 9, 0, 65532, 9, 0, 65533, 9, 0, 65534, 9, 0, 65535, 9, 0, 131073, 9, 0, 131074, 9, 0, 131075, 9, 0, 196603, 9, 0, 196604, 9, 0, 196605, 9, 0, 196608, 9, 0, 262142, 9, 0, 0, 10, 0, 1, 10, 0, 2, 10, 0, 3, 10, 0, 4, 10, 0, 65530, 10, 0, 65531, 10, 0, 65532, 10, 0, 65533, 10, 0, 65534, 10, 0, 65535, 10, 0, 0, 11, 0, 1, 11, 0, 2, 11, 0, 3, 11, 0, 4, 11, 0, 65530, 11, 0, 65531, 11, 0, 65532, 11, 0, 65533, 11, 0, 65534, 11, 0, 65535, 11, 0, 0, 65532, 0, 1, 65532, 0, 2, 65532, 0, 3, 65532, 0, 4, 65532, 0, 65530, 65532, 0, 65531, 65532, 0, 65532, 65532, 0, 65533, 65532, 0, 65534, 65532, 0, 65535, 65532, 0, 0, 65533, 0, 1, 65533, 0, 2, 65533, 0, 3, 65533, 0, 4, 65533, 0, 65530, 65533, 0, 65531, 65533, 0, 65532, 65533, 0, 65533, 65533, 0, 65534, 65533, 0, 65535, 65533, 0, 262145, 65533, 0, 262146, 65533, 0, 262147, 65533, 0, 589822, 65533, 0, 589823, 65533, 0, 655363, 65533, 0, 655364, 65533, 0, 720897, 65533, 0, 720898, 65533, 0, 786432, 65533, 0, 851967, 65533, 0, 0, 65534, 0, 1, 65534, 0, 2, 65534, 0, 3, 65534, 0, 4, 65534, 0, 65530, 65534, 0, 65531, 65534, 0, 65532, 65534, 0, 65533, 65534, 0, 65534, 65534, 0, 65535, 65534, 0, 65536, 65534, 0, 131071, 65534, 0, 196603, 65534, 0, 196604, 65534, 0, 196605, 65534, 0, 196606, 65534, 0, 196607, 65534, 0, 589822, 65534, 0, 589828, 65534, 0, 786432, 65534, 0, 851967, 65534, 0, 0, 65535, 0, 1, 65535, 0, 2, 65535, 0, 3, 65535, 0, 4, 65535, 0, 65530, 65535, 0, 65531, 65535, 0, 65532, 65535, 0, 65533, 65535, 0, 65534, 65535, 0, 65535, 65535, 0, 196603, 65535, 0, 196604, 65535, 0, 196611, 65535, 0, 589820, 65535, 0, 589821, 65535, 0, 589822, 65535, 0, 589828, 65535, 0, 786432, 65535, 0, 851967, 65535, 0 )
+}
+__meta__ = {
+"_editor_clip_": 0,
+"_editor_floor_": Vector3( 0, 12, 0 )
+}
+
+[node name="DirectionalLight" type="DirectionalLight" parent="."]
+transform = Transform( -0.173649, 0.806707, -0.564863, 0, 0.573576, 0.819152, 0.984808, 0.142244, -0.0996007, 0, 0, 0 )
+light_energy = 1.3
+shadow_enabled = true
+shadow_bias = -0.02
+shadow_reverse_cull_face = true
+directional_shadow_mode = 0
+directional_shadow_normal_bias = 0.0
+directional_shadow_bias_split_scale = 0.0
+directional_shadow_max_distance = 20.0
+
+[node name="Cubio" parent="." instance=ExtResource( 2 )]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -1.5, 2, 4 )
+
+[node name="Elevator1" type="KinematicBody" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0.5, 4.5, -2.5 )
+input_capture_on_drag = true
+
+[node name="Mesh" type="MeshInstance" parent="Elevator1"]
+mesh = ExtResource( 3 )
+material/0 = null
+
+[node name="CollisionShape" type="CollisionShape" parent="Elevator1"]
+shape = SubResource( 1 )
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="Elevator1"]
+autoplay = "updown1"
+playback_process_mode = 0
+anims/updown1 = SubResource( 2 )
+
+[node name="Elevator2" type="KinematicBody" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -3.5, 8.5, 4.5 )
+
+[node name="Mesh" type="MeshInstance" parent="Elevator2"]
+mesh = ExtResource( 3 )
+material/0 = null
+
+[node name="CollisionShape" type="CollisionShape" parent="Elevator2"]
+shape = SubResource( 1 )
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="Elevator2"]
+autoplay = "side"
+playback_process_mode = 0
+anims/side = SubResource( 3 )
+anims/updown1 = SubResource( 2 )
+
+[node name="Princess" type="Area" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 13.25, 3 )
+
+[node name="Mushroom" parent="Princess" instance=ExtResource( 5 )]
+
+[node name="CollisionShape" type="CollisionShape" parent="Princess"]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0 )
+shape = SubResource( 4 )
+
+[node name="SpawnTimer" type="Timer" parent="."]
+wait_time = 2.0
+autostart = true
+
+[node name="cube_rigidbody" parent="." instance=ExtResource( 7 )]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0.416964, 3.3565, 2.6332 )
+
+[connection signal="body_entered" from="Princess" to="Cubio" method="_on_tcube_body_entered"]
+[connection signal="timeout" from="SpawnTimer" to="." method="_on_SpawnTimer_timeout"]