HUD.gd

extends CanvasLayer


# Declare member variables here. Examples:
# var a = 2
# var b = "text"
var blood_opacity = 0
export var blood_modulation_frequency = 2
var blood_modulate = true
var blood_flash = 0
onready var healthdisp = $Data/Stats/Health
onready var ammodisp = $Data/Stats/Ammo
# Called when the node enters the scene tree for the first time.
func _ready():
	pass # Replace with function body.

func update_charge_bar(charge):
	$Data/ChargeBar.value = charge

func update_health(health):
	healthdisp.text = str(health)
	if health > 40:
		_modulate_blood(false,3,0.4)
		healthdisp.set("custom_colors/font_color",Color(1, 1, 1))
	if health <= 40 and health > 15:
		_modulate_blood(true,3,0.4)
		healthdisp.set("custom_colors/font_color",Color(1, 0, 0))
	if health < 15 and health > 1:
		_modulate_blood(true,12,0.65)
		healthdisp.set("custom_colors/font_color",Color(1, 0, 0))
	if health == 0:
		_modulate_blood(true,1,0.65)
		healthdisp.set("custom_colors/font_color",Color(1, 0, 0))


func update_ammo(new_ammo,new_clip,new_low):
	$Data/Stats/Ammo.text = str(str(new_clip)+"/"+str(new_ammo))
	if new_clip > new_low:
		$Data/Stats/Ammo.set("custom_colors/font_color",Color(1, 1, 1))
	else:
		$Data/Stats/Ammo.set("custom_colors/font_color",Color(1, 0, 0))

func _modulate_blood(setting,frequency,func_offset):
	if setting == true:
		$Data/Blood.material.set_shader_param("flashing",1)
		$Data/Blood.material.set_shader_param("frequency",float(frequency))
		$Data/Blood.material.set_shader_param("offset",float(func_offset))
	else:
		$Data/Blood.material.set_shader_param("flashing",0)

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	blood_flash = clamp(blood_flash - (70*delta),0,100)
	$Data/Blood.material.set_shader_param("flash",float(blood_flash))
		 
	

func flash_blood():
	blood_flash = 100


func _on_Player_player_just_damaged(health):
	update_health(health)
	flash_blood()

func _on_Player_player_health_changed(health):
	update_health(health)


func _on_GunManager_ammo_change(ammo,clip,new_low):
	update_ammo(ammo,clip,new_low)