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Attention | Topic was automatically imported from the old Question2Answer platform. |
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Asked By | bunnybot5555 |
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Old Version | Published before Godot 3 was released. |
Hi, I want to make a sprite move when you press a button and keep moving even when you let go.
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Reply From: | ericdl |
extends Sprite
export var move_speed = 50
var sprite_pos = Vector2()
var sprite_dir = Vector2()
func _ready():
set_process(true)
set_process_input(true)
func _input(event):
if event.is_action_pressed("ui_left"): sprite_dir = Vector2(-move_speed, 0)
if event.is_action_pressed("ui_right"): sprite_dir = Vector2(move_speed, 0)
if event.is_action_pressed("ui_up"): sprite_dir = Vector2(0, -move_speed)
if event.is_action_pressed("ui_down"): sprite_dir = Vector2(0, move_speed)
func _process(delta):
sprite_pos = get_pos()
set_pos(sprite_pos + sprite_dir * delta)
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Reply From: | Zylann |
I think most of the code to do this was given in your previous question:
Here is a simple script explaining how you can move a sprite:
extends Sprite
# Have a constant to hold how fast you want to move,
# for example 100 pixels per second
const SPEED = 100.0
# Have a variable to hold the movement direction of your sprite
var move_direction = Vector2()
func _ready():
# Tell Godot to call _process() every frame
set_process(true)
func _process(frame_time):
# Detect when the player presses keys
if Input.is_key_pressed(KEY_LEFT):
move_direction = Vector2(-1, 0)
elif Input.is_key_pressed(KEY_RIGHT):
move_direction = Vector2(1, 0)
elif Input.is_key_pressed(KEY_UP):
move_direction = Vector2(-1, 0)
elif Input.is_key_pressed(KEY_DOWN):
move_direction = Vector2(1, 0)
# Note: usually we set the direction to zero if the player doesn't presses any key,
# but here you want to continue moving, so we leave move_direction as it is.
# Calculate how many pixels the sprite has to move.
# This formula takes the time between frames into account, so
# if the game lags a bit, the sprite will still move at the same speed
var motion = move_direction * SPEED * frame_time
# Change the position of the sprite, so it will appear to move
set_pos(get_pos() + motion)
If you are new to Godot or even programming, I strongly suggest you learn from the offocial documentation: Godot Docs – master branch — Godot Engine (latest) documentation in English
Or with some tutorials https://forum.godotengine.org/7981/any-good-tutorials?show=7981#q7981