mirror of
https://github.com/jcreek/CosmicClash.git
synced 2026-09-11 21:53:43 +00:00
Josh Creek
36 lines
1.3 KiB
GDScript
36 lines
1.3 KiB
GDScript
class_name Ball
|
|
extends RigidBody3D
|
|
|
|
# Physics ball. Floor gravity is untouched (gravity_scale in ball.tscn); this
|
|
# only adds the wall/ceiling "surface pull" (see ArenaBoundary.get_surface_pull)
|
|
# so the ball can cling near a wall for dribbling or hang against the ceiling
|
|
# for ceiling shots, plus a safety speed clamp (the ball previously had none).
|
|
|
|
@export_group("Surface Pull")
|
|
@export var wall_pull_strength = 4.0 # Weaker than the ship's — assist, not adherence
|
|
@export var wall_pull_range = 2.0
|
|
@export var ceiling_pull_strength = 5.5 # Stays below the ball's effective gravity (0.8 * 9.8)
|
|
@export var ceiling_pull_range = 2.0
|
|
|
|
# Kept close to ship_observations.gd's BALL_SPEED_SCALE (30.0) so this feature
|
|
# doesn't push ball velocity further out of the range trained policies expect.
|
|
const MAX_SPEED := 32.0
|
|
|
|
var _boundary: ArenaBoundary
|
|
|
|
|
|
func _ready() -> void:
|
|
_boundary = get_tree().get_first_node_in_group("arena_boundary")
|
|
|
|
|
|
func _integrate_forces(state: PhysicsDirectBodyState3D) -> void:
|
|
if _boundary:
|
|
var pull := _boundary.get_surface_pull(
|
|
global_position, wall_pull_strength, wall_pull_range,
|
|
ceiling_pull_strength, ceiling_pull_range
|
|
)
|
|
state.apply_central_force(pull * mass)
|
|
|
|
if state.linear_velocity.length() > MAX_SPEED:
|
|
state.linear_velocity = state.linear_velocity.normalized() * MAX_SPEED
|