Added a new scene

scenes/level.tscn

@@ -0,0 +1,41 @@
+[gd_scene load_steps=7 format=3 uid="uid://dchj6g2i8ebph"]
+
+[ext_resource type="Script" uid="uid://bpxggc8nr6tf6" path="res://scenes/player.gd" id="2_w7c3h"]
+
+[sub_resource type="PhysicsMaterial" id="PhysicsMaterial_2q6dc"]
+bounce = 0.5
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_2q6dc"]
+
+[sub_resource type="SphereMesh" id="SphereMesh_w7c3h"]
+
+[sub_resource type="PhysicsMaterial" id="PhysicsMaterial_w8frs"]
+bounce = 0.5
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_mx8sn"]
+
+[node name="Node3D" type="Node3D"]
+
+[node name="Thing" type="RigidBody3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, -3.7986288)
+physics_material_override = SubResource("PhysicsMaterial_2q6dc")
+gravity_scale = 0.0
+contact_monitor = true
+max_contacts_reported = 5
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="Thing"]
+shape = SubResource("SphereShape3D_2q6dc")
+debug_color = Color(0.29772994, 0.6216631, 0.28140613, 0.41960785)
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="Thing"]
+mesh = SubResource("SphereMesh_w7c3h")
+
+[node name="Player" type="RigidBody3D" parent="."]
+physics_material_override = SubResource("PhysicsMaterial_w8frs")
+gravity_scale = 0.0
+script = ExtResource("2_w7c3h")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="Player"]
+shape = SubResource("SphereShape3D_mx8sn")
+
+[node name="Camera3D" type="Camera3D" parent="Player"]

scenes/player.gd

@@ -0,0 +1,16 @@
+extends RigidBody3D
+
+# Initially I used a CharacterBody3D, however, I wanted the player to bounce off
+# other objects in the environment and that would have required manual handling
+# of collisions. So that's why we're using a RigidBody3D instead.
+
+const ACCELLERATION = 5.0
+
+func _integrate_forces(state):
+	var input_dir = Vector3.ZERO
+	input_dir.x = Input.get_action_strength("ui_right") - Input.get_action_strength("ui_left")
+	input_dir.z = Input.get_action_strength("ui_down") - Input.get_action_strength("ui_up")
+	input_dir = input_dir.normalized()
+	
+	linear_velocity.x += input_dir.x * (ACCELLERATION * state.step)
+	linear_velocity.z += input_dir.z * (ACCELLERATION * state.step)

scenes/player.gd.uid

@@ -0,0 +1 @@
+uid://bpxggc8nr6tf6

scenes/start_screen.gd

@@ -2,8 +2,7 @@ extends Control
 
 
 func _on_start_button_pressed():
-	pass # TODO: update below with the game scene
-	# get_tree().change_scene_to_file("TODO")
+	get_tree().change_scene_to_file("res://scenes/level.tscn")
 
 func _on_settings_button_pressed():
 	get_tree().change_scene_to_file("res://scenes/Settings.tscn")