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Smooth NPC turning

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The Meldewesen now turns smoothly instead of abruptly. In addition,
while turning, its move speed decreases, causing it to mostly turn on
the spot.
This commit is contained in:
karl 2019-11-11 11:18:06 +01:00
parent 9fd3087fdc
commit 603e21b6fe
2 changed files with 28 additions and 6 deletions
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29
Characters/NPC.gd
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@ -2,7 +2,24 @@ extends KinematicBody
class_name NPC
var current_target = null
export(float) var turn_speed = 2.5
var current_target
var current_look_target
func _process(delta):
if current_look_target:
var diff_raw = (current_look_target - -transform.basis.z)
# Don't look up/down, only rotate on XZ plane
var diff = Vector3(diff_raw.x, 0.0, diff_raw.z)
# For the target, move the current forward direction towards the desired one
var target = -transform.basis.z + diff * turn_speed * delta
if diff.length() > 0.1:
look_at(transform.origin + target, Vector3.UP)
func set_position(position: Vector3):
@ -10,4 +27,12 @@ func set_position(position: Vector3):
func move_towards(direction_times_speed: Vector3):
move_and_slide(direction_times_speed)
# Decrease the speed depending on the difference between the look direction and the move direction
# This makes the NPC stop when turning, and only start moving once it has moved its gaze there
var speed_dir_factor = 1.0 - (-transform.basis.z.normalized() - direction_times_speed.normalized()).length() / 2.0
move_and_slide(direction_times_speed * speed_dir_factor)
func look_towards(direction: Vector3):
current_look_target = direction

5
Characters/Util/PathNavigatorForNPC.gd
View File

@ -51,10 +51,7 @@ func _process(delta):
body.move_towards(direction_normalized * speed)
# Look towards that goal as well
# Avoid look_at if we're already (almost) there, since that'd be an invalid look direction
# that can be identical to the up vector (which causes problems)
if direction.length() > 0.5:
body.look_at(_get_body_position() + direction_normalized, Vector3.UP)
body.look_towards(direction_normalized)
# Returns the point we should currently be moving towards