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Attention | Topic was automatically imported from the old Question2Answer platform. |
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Asked By | beaverusiv |
I am creating a 3D isometric tile based game and am currently trying to get the character to “walk” to where I click. I can currently get the character to move but the vectors aren’t lining up and it walks to a different point than the mouse click.
GDScript on the Main scene:
# to aid in debug and not flooding console
var printed = false
# hold the Vector3 we're walking towards
var travel_vec = null
# speed of walking, to be tweaked
var velocity = 1
# arbitrarily large ray for picking
const raylength = 4444
# stripped down _input which basically gets the click location and stores it
func _input(_event):
if (Input.is_mouse_button_pressed(BUTTON_LEFT)):
var mouse_pos = get_viewport().get_mouse_position()
var result = _get_position_from_click(mouse_pos)
# convert mouse screen position to grid map world position using an intersecting ray
func _get_position_from_click(mouse_pos):
var from = $Camera.project_ray_origin(mouse_pos)
var to = from + $Camera.project_ray_normal(mouse_pos) * raylength
var space_state = MapManager.get_grid_map().get_world().direct_space_state
var result = space_state.intersect_ray(from, to, [], 1)
if result:
# this is currently where I'm setting the travel vector
# it is using the KinematicBody's y value to make sure the
# walking stays on the same level
var temp = $BaseMesh_Anim.global_transform.origin
var temp2 = Vector3(result.position.x, temp.y, result.position.z)
travel_vec = Vector3(temp2.x, temp.y, temp2.z)
return MapManager.get_grid_map()
.world_to_map(Vector3(result.position.x, 0, result.position.z))
func _physics_process(delta):
# if we have a vector, walk towards it
if (travel_vec != null):
# set the speed based on velocity
var dir = travel_vec.normalized() * velocity
var temp = $BaseMesh_Anim.global_transform.origin
if (!printed):
print(temp, dir, travel_vec)
printed = true
# if the normalised vector ends up past our destination,
# just set to our destination
if (abs(dir.x + temp.x) > abs(travel_vec.x)):
dir.x = travel_vec.x
dir.z = travel_vec.z
# set to null once we've finished moving
travel_vec = null
# move
$BaseMesh_Anim.move_and_slide(dir)
The main part to figure out is the logic I’ve got in _get_position_from_click() with temp and temp2, but also the logic within _physics_process() to get the character to move. If I am way off base with how I’m doing I’d like to know now before I get further 
A video demonstrating what it does currently: https://youtu.be/_Ifi5eJFUz4