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Code Issues 12 Releases Activity

clean up and comment eel.gd

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Haze Weathers 2023-07-08 11:54:24 -04:00
parent 99a9595413
commit ef41940949
1 changed files with 27 additions and 21 deletions
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48
objects/enemy/eel.gd
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@ -1,61 +1,67 @@
extends "res://objects/enemy/enemy.gd"
# distance between segments
const SEGMENT_LENGTH: float = 4.0
const SEGMENT_OFFSET: float = 8.0
# number of segments
export var segments: int = 8
# speed eel travels
export var speed: float = 32.0
export var wave_length: float = 8.0
export var wave_amplitude: float = 4.0
var _segments: Array
onready var head: PathFollow2D = $Head
onready var tail: PathFollow2D = $Tail
func _ready() -> void:
# get nodes
var first_segment: PathFollow2D = $Segment
var first_segment_shape: CollisionShape2D = $"%SegmentShape"
# initialize segments array
_segments = []
_segments.resize(segments)
# loop for number of segments needed
for i in segments:
# create and add new segment instance
var new_segment = first_segment.duplicate()
add_child(new_segment)
_segments[i] = new_segment
# add new shape to hitbox
var new_segment_shape = first_segment_shape.duplicate()
$Hitbox.add_child(new_segment_shape)
# link segment's remote transform to its collision shape
var new_shape_transform = new_segment.get_node("ShapeTransform")
new_shape_transform.remote_path = new_shape_transform.get_path_to(new_segment_shape)
# free template segment
first_segment.queue_free()
first_segment_shape.queue_free()
func _physics_process(delta: float) -> void:
# move along path
head.offset += speed * delta
# position segments accordingly
_offset_segments()
# _wave_segments()
func _offset_segments() -> void:
# put tail at end
tail.offset = head.offset - SEGMENT_LENGTH * float(segments + 1)
# loop through segments
for i in _segments.size():
# set segment position based on index and length
_segments[i].offset = head.offset - SEGMENT_LENGTH * float(i + 1)
func _wave_segments() -> void:
for segment in get_children():
if segment is PathFollow2D:
segment.v_offset = sin(segment.offset / wave_length) * wave_amplitude
func die() -> void:
# instance death particles for every segment
for segment in _segments:
if segment is Node2D:
var death_particles = DeathParticles.instance()
death_particles.global_position = segment.global_position
death_particles.emitting = true
get_parent().add_child(death_particles)
# instance particles for this segment
var death_particles = DeathParticles.instance()
# TODO: something is wrong here, particles to not show up in correct position
death_particles.global_transform = segment.global_transform
# tone them down a little per-segment
death_particles.amount /= 4
death_particles.initial_velocity /= 2.0
# emit
death_particles.emitting = true
# detach from self
get_parent().add_child(death_particles)
.die()