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minor refactor

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This commit is contained in:
Ed Guloien 2026-05-03 01:13:12 -04:00
parent f00568c781
commit cf78507c89
2 changed files with 28 additions and 26 deletions
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40
scripts/droplet.gd
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@ -2,11 +2,11 @@ class_name Droplet extends RigidBody2D
# default mode: a bit sluggish, tendency to pile
# bounce mode: doesn't settle down at all, but keeps flat surface
# bounce_wip: wonky AF, probably due to extra compute
# sinker: new droplet sinks, pile grows outward
# stick mode: piles tightly, very calm
# wip mode: interesting, the base stays together, and the new one jumps into place
enum Mode { DEFAULT, BOUNCE, BOUNCE_WIP, STICK, WIP }
const MODE: Mode = Mode.WIP
enum Mode { DEFAULT, BOUNCE, SINKER, RICE, WIP }
var MODE: Mode
class DropletConfig:
var bounce
@ -22,10 +22,10 @@ class DropletConfig:
elif mode == Mode.BOUNCE:
bounce = 0.5
friction = 0.1
elif mode == Mode.BOUNCE_WIP:
bounce = 0.5
elif mode == Mode.SINKER:
bounce = 0
friction = 0.1
elif mode == Mode.STICK:
elif mode == Mode.RICE:
bounce = 0.1
friction = 0.3
else: # WIP
@ -44,7 +44,7 @@ func _ready():
if not MODE == Mode.DEFAULT:
contact_monitor = true
max_contacts_reported = 10
body_entered.connect(_on_body_entered)
# body_entered.connect(_on_body_entered)
func _physics_process(delta):
if MODE == Mode.WIP:
@ -59,7 +59,7 @@ func _physics_process(delta):
func _integrate_forces(state):
# this is probably overkill since we are overriding the default physics engine
if MODE == Mode.STICK:
if MODE == Mode.RICE:
var v = state.linear_velocity
var contacts = state.get_contact_count()
for i in range(contacts):
@ -71,18 +71,14 @@ func _integrate_forces(state):
state.linear_velocity = v # self bounce
if body is RigidBody2D: # other body
body.apply_central_impulse(normal * v.length() * (other_damp/contacts))
func _on_body_entered(body):
if MODE == Mode.BOUNCE_WIP:
# trying to elicit stronger response from rigidBody that was struck
# ends up being kind of erratic
# at damp_factor .75: settles laterally, but erratic past half-full
# at damp_factor of .5, it's pretty calm, but then can't overfill (expected?)
var vel = get_linear_velocity()
const damp_factor = 0.7
var normal = (body.global_position - global_position).normalized()
# reflect velocity across collision direction
var bounced = vel.bounce(normal) # reflection
set_linear_velocity(bounced * damp_factor)
elif MODE == Mode.SINKER:
# only contribute to the target rigid bodies, let source droplet handle it's own bounce
var v = state.linear_velocity
for i in range(state.get_contact_count()):
var body = state.get_contact_collider_object(i)
var normal = state.get_contact_local_normal(i)
if body is RigidBody2D:
body.apply_central_impulse(-bounced * damp_factor)
var impact_speed = v.dot(-normal)
if impact_speed > 0:
var boost = normal * impact_speed * 1
body.apply_central_impulse(boost)

12
scripts/model.gd
View File

@ -1,9 +1,14 @@
class_name Model extends Node2D
const PERIOD: int = 20 # smaller makes droplets faster
var CURRENT_TIME: int = 0
var last_droplet: int = 0
# tuning knobs
const PERIOD: int = 10 # smaller makes droplets faster
const DROP_PT_X = 450
const DROP_PT_Y = 400
const DROP_SIZE = 2
const DROP_TYPE = Droplet.Mode.SINKER
func _ready():
pass # Replace with function body.
@ -15,6 +20,7 @@ func _process(delta: float):
# print("new droplet at time: ", str(CURRENT_TIME))
var droplet = preload("res://scenes/droplet.tscn").instantiate()
var shape = droplet.get_node("CollisionShape2D")
shape.shape.radius = 5
droplet.global_position = Vector2(DROP_PT_X, 100)
shape.shape.radius = DROP_SIZE
droplet.MODE = DROP_TYPE
droplet.global_position = Vector2(DROP_PT_X, DROP_PT_Y)
add_child(droplet)