Created
August 10, 2017 19:54
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Godot Simple Trail Parcticle
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extends Node2D | |
export(int) var track_length = 10 | |
export(int) var update_delay_frames = 0 | |
var track_delay_counter = 0 | |
var track = Vector2Array() | |
func _ready(): | |
var pos = get_global_transform().get_origin() | |
for i in range(self.track_length): | |
self.track.append(pos) | |
func _init(): | |
set_fixed_process(true) | |
func _fixed_process(delta): | |
print('Delta: ', delta) | |
self.track_delay_counter += delta | |
var total_time_delay = self.update_delay_frames * get_process_delta_time() | |
if(self.track_delay_counter >= total_time_delay): | |
add_position(get_global_transform().get_origin()) | |
self.update() | |
self.track_delay_counter = 0 | |
func _draw(): | |
self.draw_trail() | |
func add_position(new_position): | |
if( self.track.size() == self.track_length ): | |
self.track.remove(0) | |
self.track.append(new_position) | |
func draw_trail(): | |
draw_set_transform( - get_global_transform().get_origin(), 0, Vector2(1,1)) | |
for i in range(self.track_length -1): | |
draw_line(self.track[i], self.track[i+1], Color(1, 0, 0), 2*i) | |
draw_line(self.track[self.track_length -1], get_global_transform().get_origin(), Color(1, 0, 0), 2) | |
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