class_name MovementParameters
extends Reference

## Vector based ones for x and y
export var base_move_speed :Vector2
export var base_move_acceleration :Vector2
export var move_speed_modifier :Vector2
export var move_speed_modifier_acceleration :Vector2

var gravity: int = ProjectSettings.get_setting("physics/2d/default_gravity")
var jerk: float = 0.0

## Can be set to help with debugging the velocity controller
export var debug_name :String

# export var base_h_move_speed :float
# export var base_h_move_acceleration :float
# export var h_move_speed_modifier :float
# export var h_move_modifier_move_acceleration :float

# export var base_v_move_speed :float
# export var base_v_move_acceleration :float
# export var v_move_speed_modifier :float
# export var v_move_modifier_move_acceleration :float

func modify(_movement_parameters :MovementParameters):
	pass

func apply_state_modifier(_modifier :StateModifierMovement):
	match _modifier.modifier_type:
		StateModifierMovement.SUB_TYPE.NEGATIVE_CONSTRAINT:
			var adjusted_move_speed = base_move_speed.x + _modifier.horizontal_speed
			## We crossed the zero from the base
			if sign(adjusted_move_speed) != sign(base_move_speed.x):
				base_move_speed.x = 0.0
			else:
				base_move_speed.x = adjusted_move_speed
			var adjusted_accel = base_move_acceleration.x + _modifier.horizontal_acceleration
			if sign(adjusted_accel) != sign(base_move_acceleration.x):
				base_move_acceleration.x = 0.0
			else:
				base_move_acceleration.x = adjusted_accel

			##TODO: Um, modifiers are a little weirder for this
			#move_speed_modifier.x += _modifier.horizontal_speed_offset
			var speed_differance = base_move_speed.x + (move_speed_modifier.x + _modifier.horizontal_speed_offset)
			if sign(speed_differance) != sign(base_move_speed.x) and base_move_speed.x != 0:
				## Add the inverse of the modifier instead
				move_speed_modifier.x += speed_differance * - 1
			else:
				move_speed_modifier.x += _modifier.horizontal_speed_offset
			
			move_speed_modifier_acceleration.x += _modifier.horizontal_speed_offset_acceleration
			move_speed_modifier.y += _modifier.vertical_speed_offset
			move_speed_modifier_acceleration.y += _modifier.vertical_speed_offset_acceleration
		_:
			base_move_speed.x += _modifier.horizontal_speed
			base_move_acceleration.x += _modifier.horizontal_acceleration
			move_speed_modifier.x += _modifier.horizontal_speed_offset
			move_speed_modifier_acceleration.x += _modifier.horizontal_speed_offset_acceleration

			base_move_speed.y += _modifier.vertical_speed
			base_move_acceleration.y += _modifier.vertical_acceleration
			move_speed_modifier.y += _modifier.vertical_speed_offset
			move_speed_modifier_acceleration.y += _modifier.vertical_speed_offset_acceleration

	
	
# var movement_params :Dictionary = {
#     "_base_h_move_speed" : _state.horizontal_speed,
#     "_base_h_move_acceleration" : _state.horizontal_acceleration,
#     "_base_h_move_speed_modifier" : _state.horizontal_speed_offset,
#     "_base_h_move_modifier_move_acceleration" : _state.horizontal_speed_offset_acceleration,
#     "_jerk_factor" : _state.jerk_factor,
#     "_gravity" : _state.gravity
# }