Switch to Bullet and use a SpringArm node for the camera

enemies/red_robot/red_robot.tscn

@@ -192,7 +192,7 @@ nodes/hit3/position = Vector2( 980, 240 )
 nodes/output/position = Vector2( 1180, 200 )
 nodes/state/node = SubResource( 25 )
 nodes/state/position = Vector2( 60, 100 )
-node_connections = [ "output", 0, "hit3", "state", 0, "Animation", "state", 1, "Animation 3", "state", 2, "Animation 2", "state", 3, "Animation 4", "hit2", 0, "hit1", "hit2", 1, "Animation 6", "hit3", 0, "hit2", "hit3", 1, "Animation 7", "aiming", 0, "state", "aiming", 1, "aim", "hit1", 0, "aiming", "hit1", 1, "Animation 5" ]
+node_connections = [ "output", 0, "hit3", "state", 0, "Animation", "state", 1, "Animation 3", "state", 2, "Animation 2", "state", 3, "Animation 4", "aiming", 0, "state", "aiming", 1, "aim", "hit1", 0, "aiming", "hit1", 1, "Animation 5", "hit2", 0, "hit1", "hit2", 1, "Animation 6", "hit3", 0, "hit2", "hit3", 1, "Animation 7" ]
 
 [sub_resource type="SphereShape" id=27]
 radius = 1.11815
@@ -542,13 +542,18 @@ tracks/10/keys = {
 [sub_resource type="AudioStreamRandomPitch" id=44]
 audio_stream = ExtResource( 18 )
 
-[node name="big_robot" type="KinematicBody"]
+[node name="RedRobot" type="KinematicBody"]
+collision_layer = 3
+collision_mask = 3
 script = ExtResource( 1 )
 
 [node name="Scene Root" parent="." instance=ExtResource( 2 )]
 
+[node name="Skeleton" parent="Scene Root/Armature" index="0"]
+bones/14/bound_children = [ NodePath("ray_from") ]
+
 [node name="ray_from" type="BoneAttachment" parent="Scene Root/Armature/Skeleton" index="4"]
-transform = Transform( -0.999975, 0.0070746, 0.000551782, 0.00707948, 0.999931, 0.0094271, -0.000485051, 0.00943077, -0.999955, 0.00850569, 2.08377, 0.183162 )
+transform = Transform( -0.862541, 0.0793345, -0.499729, -0.033231, 0.976617, 0.2124, 0.504895, 0.19981, -0.839736, 0.123715, 2.00738, 0.252644 )
 bone_name = "CannonAnimRecoil"
 
 [node name="ray" type="MeshInstance" parent="Scene Root/Armature/Skeleton/ray_from"]
@@ -631,6 +636,8 @@ visible = false
 
 [node name="part_shield1" type="RigidBody" parent="death"]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -1.37822, 1.11034, 1.09121 )
+collision_layer = 3
+collision_mask = 3
 mode = 1
 physics_material_override = SubResource( 30 )
 
@@ -666,6 +673,8 @@ color_ramp = SubResource( 35 )
 
 [node name="part_shield2" type="RigidBody" parent="death"]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 1.75083, 1.02975, 0.162546 )
+collision_layer = 3
+collision_mask = 3
 mode = 1
 physics_material_override = SubResource( 36 )
 
@@ -701,6 +710,8 @@ color_ramp = SubResource( 35 )
 
 [node name="part_shield3" type="RigidBody" parent="death"]
 transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, -0.0374503, 1.02975, 0.162546 )
+collision_layer = 3
+collision_mask = 3
 mode = 1
 physics_material_override = SubResource( 39 )
 angular_damp = 0.3

level/level.tscn

@@ -223,16 +223,16 @@ data = ExtResource( 5 )
 [node name="Player" parent="." instance=ExtResource( 6 )]
 transform = Transform( -0.575826, 0, -0.817573, 0, 1, 0, 0.817573, 0, -0.575826, 64.8183, -1.0765, 78.7639 )
 
-[node name="big_robot" parent="." instance=ExtResource( 7 )]
+[node name="RedRobot1" parent="." instance=ExtResource( 7 )]
 transform = Transform( 0.843905, 0, -0.536493, 0, 1, 0, 0.536493, 0, 0.843905, 71.5907, -6.05686, 46.2736 )
 
-[node name="big_robot2" parent="." instance=ExtResource( 7 )]
+[node name="RedRobot2" parent="." instance=ExtResource( 7 )]
 transform = Transform( 0.338334, 0, 0.941027, 0, 1, 0, -0.941027, 0, 0.338334, 53.2126, -6.05686, 15.9321 )
 
-[node name="big_robot3" parent="." instance=ExtResource( 7 )]
+[node name="RedRobot3" parent="." instance=ExtResource( 7 )]
 transform = Transform( -0.164432, 0, 0.986389, 0, 1, 0, -0.986389, 0, -0.164432, -2.96096, -11.6923, 20.2343 )
 
-[node name="big_robot4" parent="." instance=ExtResource( 7 )]
+[node name="RedRobot4" parent="." instance=ExtResource( 7 )]
 transform = Transform( -0.164432, 0, 0.986389, 0, 1, 0, -0.986389, 0, -0.164432, -9.15526, -11.6923, -16.9238 )
 
 [node name="sound_outside" type="Area" parent="."]

player/player.gd

@@ -24,6 +24,13 @@ var camera_x_rot = 0.0
 
 onready var gravity = ProjectSettings.get_setting("physics/3d/default_gravity") * ProjectSettings.get_setting("physics/3d/default_gravity_vector")
 
+onready var animation_tree = $AnimationTree
+onready var camera_base = $CameraBase
+onready var camera_animation = $CameraBase/Animation
+onready var camera_rot = $CameraBase/CameraRot
+onready var camera_spring_arm = $CameraBase/CameraRot/SpringArm
+onready var camera = $CameraBase/CameraRot/SpringArm/Camera
+
 func _init():
 	Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
 
@@ -45,7 +52,7 @@ func _physics_process(delta):
 								Input.get_action_strength("move_back") - Input.get_action_strength("move_forward"))
 	motion = motion.linear_interpolate(motion_target, MOTION_INTERPOLATE_SPEED * delta)
 	
-	var camera_basis = $CameraBase/CameraRot.global_transform.basis
+	var camera_basis = camera_rot.global_transform.basis
 	var camera_z = camera_basis.z
 	var camera_x = camera_basis.x
 	
@@ -59,9 +66,9 @@ func _physics_process(delta):
 	if aiming != current_aim:
 			aiming = current_aim
 			if (aiming):
-				$CameraBase/Animation.play("shoot")
+				camera_animation.play("shoot")
 			else:
-				$CameraBase/Animation.play("far")
+				camera_animation.play("far")
 	
 	# Jump/in-air logic.
 	airborne_time += delta
@@ -75,23 +82,23 @@ func _physics_process(delta):
 	if not on_air and Input.is_action_just_pressed("jump"):
 		velocity.y = JUMP_SPEED
 		on_air = true
-		$AnimationTree["parameters/state/current"] = 2
+		animation_tree["parameters/state/current"] = 2
 		$sfx/jump.play()
 	
 	if on_air:
 		if (velocity.y > 0):
-			$AnimationTree["parameters/state/current"] = 2
+			animation_tree["parameters/state/current"] = 2
 		else:
-			$AnimationTree["parameters/state/current"] = 3
+			animation_tree["parameters/state/current"] = 3
 	elif aiming:
 		# Change state to strafe.
-		$AnimationTree["parameters/state/current"] = 0
+		animation_tree["parameters/state/current"] = 0
 		
 		# Change aim according to camera rotation.
 		if camera_x_rot >= 0: # Aim up.
-			$AnimationTree["parameters/aim/add_amount"] = -camera_x_rot / deg2rad(CAMERA_X_ROT_MAX)
+			animation_tree["parameters/aim/add_amount"] = -camera_x_rot / deg2rad(CAMERA_X_ROT_MAX)
 		else: # Aim down.
-			$AnimationTree["parameters/aim/add_amount"] = camera_x_rot / deg2rad(CAMERA_X_ROT_MIN)
+			animation_tree["parameters/aim/add_amount"] = camera_x_rot / deg2rad(CAMERA_X_ROT_MIN)
 		
 		# Convert orientation to quaternions for interpolating rotation.
 		var q_from = orientation.basis.get_rotation_quat()
@@ -100,17 +107,16 @@ func _physics_process(delta):
 		orientation.basis = Basis(q_from.slerp(q_to, delta * ROTATION_INTERPOLATE_SPEED))
 		
 		# The animation's forward/backward axis is reversed.
-		$AnimationTree["parameters/strafe/blend_position"] = Vector2(motion.x, -motion.y)
+		animation_tree["parameters/strafe/blend_position"] = Vector2(motion.x, -motion.y)
 		
-		root_motion = $AnimationTree.get_root_motion_transform()
+		root_motion = animation_tree.get_root_motion_transform()
 		
 		if Input.is_action_pressed("shoot") and $FireCooldown.time_left == 0:
 			var shoot_from = $"Scene Root/Robot_Skeleton/Skeleton/GunBone/ShootFrom".global_transform.origin
-			var cam = $CameraBase/CameraRot/Camera
 			
 			var ch_pos = $Crosshair.rect_position + $Crosshair.rect_size * 0.5
-			var ray_from = cam.project_ray_origin(ch_pos)
-			var ray_dir = cam.project_ray_normal(ch_pos)
+			var ray_from = camera.project_ray_origin(ch_pos)
+			var ray_dir = camera.project_ray_normal(ch_pos)
 			
 			var shoot_target
 			var col = get_world().direct_space_state.intersect_ray(ray_from, ray_from + ray_dir * 1000, [self])
@@ -137,13 +143,13 @@ func _physics_process(delta):
 			orientation.basis = Basis(q_from.slerp(q_to, delta * ROTATION_INTERPOLATE_SPEED))
 		
 		# Aim to zero (no aiming while walking).
-		$AnimationTree["parameters/aim/add_amount"] = 0
+		animation_tree["parameters/aim/add_amount"] = 0
 		# Change state to walk.
-		$AnimationTree["parameters/state/current"] = 1
+		animation_tree["parameters/state/current"] = 1
 		# Blend position for walk speed based on motion.
-		$AnimationTree["parameters/walk/blend_position"] = Vector2(motion.length(), 0) 
+		animation_tree["parameters/walk/blend_position"] = Vector2(motion.length(), 0) 
 		
-		root_motion = $AnimationTree.get_root_motion_transform()
+		root_motion = animation_tree.get_root_motion_transform()
 	
 	# Apply root motion to orientation.
 	orientation *= root_motion
@@ -173,4 +179,4 @@ func rotate_camera(move):
 	$CameraBase.orthonormalize() # After relative transforms, camera needs to be renormalized.
 	camera_x_rot += move.y
 	camera_x_rot = clamp(camera_x_rot, deg2rad(CAMERA_X_ROT_MIN), deg2rad(CAMERA_X_ROT_MAX))
-	$CameraBase/CameraRot.rotation.x = camera_x_rot
+	camera_rot.rotation.x = camera_x_rot

player/player.tscn

@@ -126,7 +126,7 @@ y_label = "gun"
 
 [sub_resource type="AnimationNodeBlendTree" id=22]
 resource_local_to_scene = true
-graph_offset = Vector2( -480.904, 74.268 )
+graph_offset = Vector2( 1, 85 )
 nodes/aim/node = SubResource( 1 )
 nodes/aim/position = Vector2( 380, 120 )
 nodes/aimdown/node = SubResource( 2 )
@@ -155,14 +155,14 @@ nodes/walk/position = Vector2( -400, 40 )
 node_connections = [ "output", 0, "eye_blend", "state", 0, "strafe", "state", 1, "walk", "state", 2, "jumpup", "state", 3, "jumpdown", "land", 0, "state", "land", 1, "hardland", "aim", 0, "aimdown", "aim", 1, "land", "aim", 2, "aimup", "eye_blend", 0, "aim", "eye_blend", 1, "eyes" ]
 
 [sub_resource type="CapsuleShape" id=23]
-radius = 0.490082
-height = 0.560254
+radius = 0.5
+height = 0.6
 
 [sub_resource type="RayShape" id=24]
 
 [sub_resource type="Animation" id=25]
 tracks/0/type = "value"
-tracks/0/path = NodePath("CameraRot/Camera:translation")
+tracks/0/path = NodePath("CameraRot/SpringArm:translation")
 tracks/0/interp = 1
 tracks/0/loop_wrap = true
 tracks/0/imported = false
@@ -171,7 +171,7 @@ tracks/0/keys = {
 "times": PoolRealArray( 0, 1 ),
 "transitions": PoolRealArray( 0.287175, 1 ),
 "update": 3,
-"values": [ Vector3( 0, 0.593, -2.157 ), Vector3( 0, 0.593, -2.157 ) ]
+"values": [ Vector3( 0, 0, 0 ), Vector3( 0, 0, 0 ) ]
 }
 tracks/1/type = "value"
 tracks/1/path = NodePath("../Crosshair:self_modulate")
@@ -188,7 +188,7 @@ tracks/1/keys = {
 
 [sub_resource type="Animation" id=26]
 tracks/0/type = "value"
-tracks/0/path = NodePath("CameraRot/Camera:translation")
+tracks/0/path = NodePath("CameraRot/SpringArm:translation")
 tracks/0/interp = 1
 tracks/0/loop_wrap = true
 tracks/0/imported = false
@@ -197,7 +197,7 @@ tracks/0/keys = {
 "times": PoolRealArray( 0, 1 ),
 "transitions": PoolRealArray( 0.233259, 1 ),
 "update": 3,
-"values": [ Vector3( -0.684193, 0.265504, -1.04126 ), Vector3( -0.684193, 0.265504, -1.04126 ) ]
+"values": [ Vector3( -0.6, -0.3, 1.1 ), Vector3( -0.6, -0.3, 1.1 ) ]
 }
 tracks/1/type = "value"
 tracks/1/path = NodePath("../Crosshair:self_modulate")
@@ -216,7 +216,8 @@ tracks/1/keys = {
 audio_stream = ExtResource( 7 )
 
 [node name="Player" type="KinematicBody"]
-collision_layer = 3
+collision_layer = 2
+collision_mask = 3
 script = ExtResource( 1 )
 
 [node name="Scene Root" parent="." instance=ExtResource( 2 )]
@@ -225,7 +226,7 @@ script = ExtResource( 1 )
 bones/46/bound_children = [ NodePath("GunBone") ]
 
 [node name="GunBone" type="BoneAttachment" parent="Scene Root/Robot_Skeleton/Skeleton" index="5"]
-transform = Transform( 0.908797, -0.252345, 0.332564, -0.248902, -0.967057, -0.0539471, 0.335258, -0.0337236, -0.941535, -0.207594, 1.37206, 0.52221 )
+transform = Transform( 0.898624, -0.247907, 0.362217, -0.262223, -0.964987, -0.0102129, 0.352102, -0.0857715, -0.932036, -0.207116, 1.3624, 0.547539 )
 bone_name = "hand.R"
 
 [node name="ShootFrom" type="Position3D" parent="Scene Root/Robot_Skeleton/Skeleton/GunBone"]
@@ -247,16 +248,19 @@ parameters/state/current = 0
 parameters/strafe/blend_position = Vector2( 0, 0 )
 parameters/walk/blend_position = Vector2( 0, 0 )
 
-[node name="CollisionShape" type="CollisionShape" parent="."]
-transform = Transform( 1, 0, 0, 0, -4.37114e-08, 1, 0, -1, -4.37114e-08, 0, 1.03615, 0 )
+[node name="CapsuleShape" type="CollisionShape" parent="."]
+transform = Transform( 1, 0, 0, 0, -4.37114e-08, 1, 0, -1, -4.37114e-08, 0, 1, 0 )
 shape = SubResource( 23 )
 
-[node name="CollisionShape2" type="CollisionShape" parent="."]
+[node name="RayShape" type="CollisionShape" parent="."]
 transform = Transform( 1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0, 1.00357, 0 )
 shape = SubResource( 24 )
 
+[node name="Spatial" type="Position3D" parent="."]
+transform = Transform( -1, 1.18511e-07, -3.03525e-07, 0, 0.931513, 0.363707, 3.25841e-07, 0.363707, -0.931513, 0, 2.44728, -2.15676 )
+
 [node name="CameraBase" type="Spatial" parent="."]
-transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.85456, 0 )
+transform = Transform( 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.6, 0 )
 __meta__ = {
 "_editor_description_": "Handles Y rotation (yaw)."
 }
@@ -266,8 +270,12 @@ __meta__ = {
 "_editor_description_": "Handles X rotation (pitch)."
 }
 
-[node name="Camera" type="Camera" parent="CameraBase/CameraRot"]
-transform = Transform( -1, 1.18511e-07, -3.03526e-07, 0, 0.931514, 0.363707, 3.25841e-07, 0.363707, -0.931514, 0, 0.592719, -2.15676 )
+[node name="SpringArm" type="SpringArm" parent="CameraBase/CameraRot"]
+transform = Transform( -1, -1.11444e-07, 3.06191e-07, 0, 0.939693, 0.34202, -3.25841e-07, 0.34202, -0.939693, 0, 0, 0 )
+spring_length = 2.4
+
+[node name="Camera" type="Camera" parent="CameraBase/CameraRot/SpringArm"]
+transform = Transform( 1, 1.42109e-14, -2.84217e-14, 0, 1, 0, 0, 0, 1, 0, 0, 0 )
 current = true
 far = 300.0
 __meta__ = {

project.godot

@@ -194,9 +194,14 @@ toggle_fullscreen={
  ]
 }
 
+[layer_names]
+
+3d_physics/layer_1="Level"
+3d_physics/layer_2="Player"
+
 [physics]
 
-3d/physics_engine="GodotPhysics"
+3d/physics_engine="Bullet"
 
 [rendering]