Add 3D game project, squash the creeps

3d-squash-the-creeps/.gitignore

@@ -0,0 +1,2 @@
+.import
+logs/

3d-squash-the-creeps/Main.gd

@@ -0,0 +1,34 @@
+extends Node
+
+export(PackedScene) var mob_scene
+
+
+func _ready():
+	randomize()
+	$UserInterface/Retry.hide()
+
+
+func _unhandled_input(event):
+	if event.is_action_pressed("ui_accept") and $UserInterface/Retry.visible:
+		get_tree().reload_current_scene()
+
+
+func _on_MobTimer_timeout():
+	# Create a Mob instance and add it to the scene.
+	var mob = mob_scene.instance()
+
+	# Choose a random location on Path2D.
+	var mob_spawn_location = get_node("SpawnPath/SpawnLocation")
+	mob_spawn_location.unit_offset = randf()
+
+	var player_position = $Player.transform.origin
+
+	add_child(mob)
+	# We connect the mob to the score label to update the score upon squashing a mob.
+	mob.connect("squashed", $UserInterface/ScoreLabel, "_on_Mob_squashed")
+	mob.initialize(mob_spawn_location.translation, player_position)
+
+
+func _on_Player_hit():
+	$MobTimer.stop()
+	$UserInterface/Retry.show()

3d-squash-the-creeps/Main.tscn

@@ -0,0 +1,140 @@
+[gd_scene load_steps=12 format=2]
+
+[ext_resource path="res://Main.gd" type="Script" id=1]
+[ext_resource path="res://Player.tscn" type="PackedScene" id=2]
+[ext_resource path="res://Mob.tscn" type="PackedScene" id=3]
+[ext_resource path="res://default_env.tres" type="Environment" id=4]
+[ext_resource path="res://ScoreLabel.gd" type="Script" id=6]
+[ext_resource path="res://ui_theme.tres" type="Theme" id=7]
+
+[sub_resource type="BoxShape" id=1]
+extents = Vector3( 30, 1, 30 )
+
+[sub_resource type="CubeMesh" id=2]
+size = Vector3( 60, 2, 60 )
+
+[sub_resource type="CylinderMesh" id=3]
+
+[sub_resource type="SpatialMaterial" id=4]
+albedo_color = Color( 0.960784, 0.486275, 0.0313726, 1 )
+
+[sub_resource type="Curve3D" id=5]
+_data = {
+"points": PoolVector3Array( 0, 0, 0, 0, 0, 0, 14, 0, -15, 0, 0, 0, 0, 0, 0, -13, 0, -15, 0, 0, 0, 0, 0, 0, -13, 0, 16, 0, 0, 0, 0, 0, 0, 14, 0, 16, 0, 0, 0, 0, 0, 0, 14, 0, -15 ),
+"tilts": PoolRealArray( 0, 0, 0, 0, 0 )
+}
+
+[node name="Main" type="Node"]
+script = ExtResource( 1 )
+mob_scene = ExtResource( 3 )
+
+[node name="Ground" type="StaticBody" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, -1, 0 )
+collision_layer = 4
+collision_mask = 0
+
+[node name="CollisionShape" type="CollisionShape" parent="Ground"]
+shape = SubResource( 1 )
+
+[node name="MeshInstance" type="MeshInstance" parent="Ground"]
+mesh = SubResource( 2 )
+material/0 = null
+
+[node name="DirectionalLight" type="DirectionalLight" parent="."]
+transform = Transform( 0.5, -0.777049, 0.382355, 0, 0.441506, 0.897258, -0.866025, -0.448629, 0.220753, 0, 12.5592, 14.7757 )
+shadow_enabled = true
+
+[node name="Player" parent="." instance=ExtResource( 2 )]
+
+[node name="CameraPivot" type="Position3D" parent="."]
+transform = Transform( 1, 0, 0, 0, 0.707107, 0.707107, 0, -0.707107, 0.707107, 0.183514, 0, 0 )
+
+[node name="Camera" type="Camera" parent="CameraPivot"]
+transform = Transform( 1, 0, 0, 0, 1, -2.98023e-08, 0, 2.98023e-08, 1, 0, 9.53674e-07, 19 )
+projection = 1
+fov = 48.6
+size = 19.0
+
+[node name="Cylinders" type="Spatial" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 8, 0, 0 )
+
+[node name="MeshInstance" type="MeshInstance" parent="Cylinders"]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 6, 0, -15 )
+mesh = SubResource( 3 )
+material/0 = SubResource( 4 )
+
+[node name="MeshInstance3" type="MeshInstance" parent="Cylinders"]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -21, 0, -15 )
+mesh = SubResource( 3 )
+material/0 = SubResource( 4 )
+
+[node name="MeshInstance2" type="MeshInstance" parent="Cylinders"]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -21, 0, 16 )
+mesh = SubResource( 3 )
+material/0 = SubResource( 4 )
+
+[node name="MeshInstance4" type="MeshInstance" parent="Cylinders"]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 6, 0, 16 )
+mesh = SubResource( 3 )
+material/0 = SubResource( 4 )
+
+[node name="SpawnPath" type="Path" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0 )
+curve = SubResource( 5 )
+
+[node name="SpawnLocation" type="PathFollow" parent="SpawnPath"]
+transform = Transform( -0.491811, 0, -0.870701, 0, 1, 0, 0.870701, 0, -0.491811, -12.9746, 0, -14.9397 )
+offset = 26.9729
+rotation_mode = 1
+cubic_interp = false
+loop = false
+
+[node name="MobTimer" type="Timer" parent="."]
+wait_time = 0.5
+autostart = true
+
+[node name="UserInterface" type="Control" parent="."]
+anchor_right = 1.0
+anchor_bottom = 1.0
+theme = ExtResource( 7 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="ScoreLabel" type="Label" parent="UserInterface"]
+margin_left = 20.0226
+margin_top = 16.0181
+margin_right = 126.023
+margin_bottom = 71.0181
+custom_colors/font_color = Color( 0.2, 0.184314, 0.215686, 1 )
+text = "Score: 0"
+script = ExtResource( 6 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Retry" type="ColorRect" parent="UserInterface"]
+visible = false
+anchor_right = 1.0
+anchor_bottom = 1.0
+color = Color( 0, 0, 0, 0.447059 )
+__meta__ = {
+"_edit_use_anchors_": false
+}
+
+[node name="Label" type="Label" parent="UserInterface/Retry"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+text = "Press Enter to retry"
+align = 1
+valign = 1
+__meta__ = {
+"_edit_use_anchors_": false,
+"_editor_description_": ""
+}
+
+[node name="WorldEnvironment" type="WorldEnvironment" parent="."]
+environment = ExtResource( 4 )
+
+[connection signal="hit" from="Player" to="." method="_on_Player_hit"]
+[connection signal="timeout" from="MobTimer" to="." method="_on_MobTimer_timeout"]

3d-squash-the-creeps/Mob.gd

@@ -0,0 +1,38 @@
+extends KinematicBody
+
+# Emitted when the player jumped on the mob.
+signal squashed
+
+# Minimum speed of the mob in meters per second.
+export var min_speed = 10
+# Maximum speed of the mob in meters per second.
+export var max_speed = 18
+
+var velocity = Vector3.ZERO
+
+
+func _physics_process(_delta):
+	move_and_slide(velocity)
+
+
+func initialize(start_position, player_position):
+	translation = start_position
+	look_at(player_position, Vector3.UP)
+	rotate_y(rand_range(-PI / 4, PI / 4))
+
+	var random_speed = rand_range(min_speed, max_speed)
+	# We calculate a forward velocity first, which represents the speed.
+	velocity = Vector3.FORWARD * random_speed
+	# We then rotate the vector based on the mob's Y rotation to move in the direction it's looking.
+	velocity = velocity.rotated(Vector3.UP, rotation.y)
+
+	$AnimationPlayer.playback_speed = random_speed / min_speed
+
+
+func squash():
+	emit_signal("squashed")
+	queue_free()
+
+
+func _on_VisibilityNotifier_screen_exited():
+	queue_free()

3d-squash-the-creeps/Mob.tscn

@@ -0,0 +1,61 @@
+[gd_scene load_steps=5 format=2]
+
+[ext_resource path="res://Mob.gd" type="Script" id=1]
+[ext_resource path="res://art/mob.glb" type="PackedScene" id=2]
+
+[sub_resource type="BoxShape" id=1]
+extents = Vector3( 0.679112, 0.544173, 1.10029 )
+
+[sub_resource type="Animation" id=2]
+length = 1.2
+loop = true
+tracks/0/type = "value"
+tracks/0/path = NodePath("Pivot/Character:translation")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/keys = {
+"times": PoolRealArray( 0.22, 0.7, 1.18 ),
+"transitions": PoolRealArray( 0.435275, 2.21914, 1 ),
+"update": 0,
+"values": [ Vector3( 0, 0.329753, 0 ), Vector3( 0, 0.660351, 0 ), Vector3( 0, 0.349734, 0 ) ]
+}
+tracks/1/type = "value"
+tracks/1/path = NodePath("Pivot/Character:rotation_degrees")
+tracks/1/interp = 1
+tracks/1/loop_wrap = true
+tracks/1/imported = false
+tracks/1/enabled = true
+tracks/1/keys = {
+"times": PoolRealArray( 0.1, 0.46, 1.18 ),
+"transitions": PoolRealArray( 0.482968, 0.535887, 1 ),
+"update": 0,
+"values": [ Vector3( -5.0326, 0, 0 ), Vector3( 10, 0, 0 ), Vector3( -10, 0, 0 ) ]
+}
+
+[node name="Mob" type="KinematicBody" groups=[
+"mob",
+]]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.0114588, 0 )
+collision_layer = 2
+collision_mask = 2147483648
+script = ExtResource( 1 )
+
+[node name="Pivot" type="Spatial" parent="."]
+
+[node name="Character" parent="Pivot" instance=ExtResource( 2 )]
+transform = Transform( 1, 0, 0, 0, 0.989268, 0.146113, 0, -0.146113, 0.989268, 0, 0.34652, 0 )
+
+[node name="CollisionShape" type="CollisionShape" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.52793, 0 )
+shape = SubResource( 1 )
+
+[node name="VisibilityNotifier" type="VisibilityNotifier" parent="."]
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.062134, 0.331645 )
+aabb = AABB( -1.19986, 0.251327, -1.57098, 2.41047, 1.09305, 3.17223 )
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+autoplay = "float"
+anims/float = SubResource( 2 )
+[connection signal="screen_exited" from="VisibilityNotifier" to="." method="_on_VisibilityNotifier_screen_exited"]

3d-squash-the-creeps/MusicPlayer.tscn

@@ -0,0 +1,7 @@
+[gd_scene load_steps=2 format=2]
+
+[ext_resource path="res://art/House In a Forest Loop.ogg" type="AudioStream" id=1]
+
+[node name="MusicPlayer" type="AudioStreamPlayer"]
+stream = ExtResource( 1 )
+autoplay = true

3d-squash-the-creeps/Player.gd

@@ -0,0 +1,72 @@
+extends KinematicBody
+
+signal hit
+
+# How fast the player moves in meters per second.
+export var speed = 14
+# Vertical impulse applied to the character upon jumping in meters per second.
+export var jump_impulse = 20
+# Vertical impulse applied to the character upon bouncing over a mob in meters per second.
+export var bounce_impulse = 16
+# The downward acceleration when in the air, in meters per second per second.
+export var fall_acceleration = 75
+
+var velocity = Vector3.ZERO
+
+
+func _physics_process(delta):
+	var direction = Vector3.ZERO
+	if Input.is_action_pressed("move_right"):
+		direction.x += 1
+	if Input.is_action_pressed("move_left"):
+		direction.x -= 1
+	if Input.is_action_pressed("move_back"):
+		direction.z += 1
+	if Input.is_action_pressed("move_forward"):
+		direction.z -= 1
+
+	if direction != Vector3.ZERO:
+		# In the lines below, we turn the character when moving and make the animation play faster.
+		direction = direction.normalized()
+		$Pivot.look_at(translation + direction, Vector3.UP)
+		$AnimationPlayer.playback_speed = 4
+	else:
+		$AnimationPlayer.playback_speed = 1
+
+	velocity.x = direction.x * speed
+	velocity.z = direction.z * speed
+
+	# Jumping.
+	if is_on_floor() and Input.is_action_just_pressed("jump"):
+		velocity.y += jump_impulse
+
+	# We apply gravity every frame so the character always collides with the ground when moving.
+	# This is necessary for the is_on_floor() function to work as a body can always detect
+	# the floor, walls, etc. when a collision happens the same frame.
+	velocity.y -= fall_acceleration * delta
+	velocity = move_and_slide(velocity, Vector3.UP)
+
+	# Here, we check if we landed on top of a mob and if so, we kill it and bounce.
+	# With move_and_slide(), Godot makes the body move sometimes multiple times in a row to
+	# smooth out the character's motion. So we have to loop over all collisions that may have
+	# happened.
+	# If there are no "slides" this frame, the loop below won't run.
+	for index in range(get_slide_count()):
+		var collision = get_slide_collision(index)
+		if collision.collider.is_in_group("mob"):
+			var mob = collision.collider
+			if Vector3.UP.dot(collision.normal) > 0.1:
+				mob.squash()
+				velocity.y = bounce_impulse
+
+	# This makes the character follow a nice arc when jumping
+	$Pivot.rotation.x = PI / 6 * velocity.y / jump_impulse
+
+
+func die():
+	emit_signal("hit")
+	queue_free()
+
+
+func _on_MobDetector_body_entered(_body):
+	die()