First draft Quake movement

Pure shit

Commentary.tscn

@@ -33,7 +33,7 @@ size = Vector3(1, 1.5, 1)
 script = ExtResource("1_omu2m")
 
 [node name="Koob" type="CSGMesh3D" parent="."]
-transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.20345, 0)
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.816788, 0)
 mesh = SubResource("BoxMesh_sbsxh")
 material = SubResource("StandardMaterial3D_8bjqg")
 

Debug.gd

@@ -8,7 +8,7 @@ func _ready():
 
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 func _process(delta):
-	pass
+	$Speed.text = 'Speed: {0}'.format([$Player.velocity.length()])
 
 
 func _input(event: InputEvent):

Player.gd

@@ -1,14 +1,18 @@
 extends CharacterBody3D
 
 # Member variables
-var walk_speed = 1.0
+const QUAKE = 8 * 0.013888888888888888
+const g = -800 * QUAKE
+const MAX_SPEED = 2000 * QUAKE
+const FRICTION = 4 * QUAKE
+const STOP_SPEED = 100 * QUAKE
+const ACCEL= 10 * QUAKE
+const FORWARD_SPEED = 200 * QUAKE
+const SIDE_SPEED = 350 * QUAKE
+const UP_SPEED = 270 * QUAKE
 
-var g = -9.8
-const MAX_SPEED = 5
-const JUMP_SPEED = 5
-const ACCEL= 8
-const DEACCEL= 8
-const MAX_SLOPE_ANGLE = 30
+# const DEACCEL= 8
+# const MAX_SLOPE_ANGLE = 30
 
 @onready
 var camera = $CSGMesh3D/Camera3D
@@ -22,49 +26,116 @@ func _ready():
 
 
 func _physics_process(delta):
-	var move_dir = Vector3() # Where does the player intend to walk to
-	var cam_xform = camera.get_global_transform()
+	# Shamelessly stolen code from quake :)
+	
+	var fmove = 0.0
+	var smove = 0.0
+	var upmove = 0.0
 
 	if Input.is_action_pressed("move_forward"):
-		move_dir += -cam_xform.basis.z
+		fmove += -FORWARD_SPEED
 	if Input.is_action_pressed("move_backwards"):
-		move_dir += cam_xform.basis.z
+		fmove += FORWARD_SPEED
 	if Input.is_action_pressed("move_left"):
-		move_dir += -cam_xform.basis.x
+		smove += -SIDE_SPEED
 	if Input.is_action_pressed("move_right"):
-		move_dir += cam_xform.basis.x
-
-	if not _noclip:
-		move_dir.y = 0
-	move_dir = move_dir.normalized()
-
-	var target = move_dir * MAX_SPEED
+		smove += SIDE_SPEED
+	if Input.is_action_pressed("jump"):
+		upmove += UP_SPEED
 	if Input.is_action_pressed("run"):
-		target *= 5
+		fmove *= 2.0
+		smove *= 2.0
+		upmove *= 2.0
 	
-	var accel
-	if move_dir.dot(target) > 0:
-		accel = ACCEL
-	else:
-		accel = DEACCEL
+	var wishvel = Vector3()
+	var cam_xform: Transform3D = camera.get_global_transform()
+	var cam_basis: Basis = cam_xform.basis
 	
-	var new_vel = velocity.lerp(target, accel * delta)
+	wishvel = cam_basis.z * fmove + cam_basis.x * smove
 	
-	velocity.x = new_vel.x
-	velocity.z = new_vel.z
 	if _noclip:
-		velocity.y = new_vel.y
+		wishvel.y = upmove
+#	else:
+#		wishvel.y = upmove
+	
+	var wishdir = wishvel.normalized()
+	var wishspeed = wishvel.length()
+	
+	if wishspeed > MAX_SPEED:
+		wishvel *= MAX_SPEED / wishspeed
+		wishspeed = MAX_SPEED
+	
+	if   is_on_floor():
+		velocity.y += upmove
+	var vel = velocity
+	if _noclip:
+		vel = wishvel
+	elif is_on_floor():
+		vel = _apply_friction(vel, delta)
+		vel = _apply_accel(vel, wishdir, wishspeed, delta)
+	else:
+		vel = _apply_air_accel(vel, wishvel, wishspeed, delta)
 		
 	if not _noclip:
-		velocity.y += g * delta
-		
-		if is_on_floor() and Input.is_action_pressed("jump"):
-			velocity.y += JUMP_SPEED
+		vel.y += g * delta
 		
+	velocity = vel
 	move_and_slide()
 	
 	$Ball.global_position = camera.global_position - camera.global_transform.basis.z * 2.0
 	
+func _apply_friction(vel: Vector3, delta: float):
+	var speed = sqrt(vel.x ** 2 + vel.z ** 2)
+	if(speed == 0.0): return vel
+	
+	# TODO: edge detect friction?
+	var friction = FRICTION
+	
+	var control = 0.0
+	if speed < STOP_SPEED:
+		control = STOP_SPEED
+	else:
+		control = speed
+	
+	var newspeed = speed - delta * control * friction
+	
+	if newspeed < 0.0:
+		newspeed = 0.0
+	
+	newspeed /= speed
+	
+	return vel * newspeed
+	
+func _apply_accel(vel: Vector3, wishdir: Vector3, wishspeed: float, delta: float):
+	var currentspeed = vel.dot(wishdir)
+	var addspeed = wishspeed - currentspeed
+	if addspeed <= 0.0:
+		return vel
+		
+	var accelspeed = ACCEL * delta * wishspeed
+	if accelspeed > addspeed:
+		accelspeed = addspeed
+	
+	return vel + accelspeed * wishdir
+	
+func _apply_air_accel(vel: Vector3, wishvel: Vector3, wishspeed: float, delta: float):
+	var wishveloc = wishvel.normalized()
+	var wishspd = wishvel.length()
+	
+	if wishspd > 30 * QUAKE:
+		wishspd = 30 * QUAKE
+	
+	var currentspeed = vel.dot(wishveloc)
+	var addspeed = wishspd - currentspeed
+	if addspeed <= 0:
+		return vel
+		
+	var accelspeed = ACCEL * wishspeed * delta
+	if accelspeed > addspeed:
+		accelspeed = addspeed
+		
+	return vel + accelspeed * wishveloc
+
 func _input(event):
 	if event.is_action_pressed("pause"):
 		_paused = not _paused

world.tscn

@@ -42,6 +42,7 @@ offset_left = 21.0
 offset_top = 2.0
 offset_right = 214.0
 offset_bottom = 118.0
+text = "KEY OVERLAY"
 label_settings = SubResource("LabelSettings_1j5am")
 uppercase = true
 script = ExtResource("6_crgb3")
@@ -50,3 +51,10 @@ script = ExtResource("6_crgb3")
 
 [node name="hazardcourse" parent="." instance=ExtResource("8_t5ilw")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -81.92, 1.28, -16.64)
+
+[node name="Speed" type="Label" parent="."]
+offset_left = 23.0
+offset_top = 99.0
+offset_right = 113.0
+offset_bottom = 136.0
+text = "SPEED"