import assets
import arcade
import controls
import gamestate
import math

from objects import BalthasarRenderer, OverworldMap, DIR_UP, DIR_LEFT, DIR_DOWN, DIR_RIGHT

WALK_SPEED = 48

balthasar  = BalthasarRenderer()
overworld  = OverworldMap()

btrans_active = False
btrans_timer  = 0
btrans_sound  = None
BTRANS_PULSE_DUR = 0.25
BTRANS_DURATION  = 0.75

def start_battle(battle_id):
    global btrans_active, btrans_timer, btrans_sound
    gamestate.gamestates["battle"].battle_id = battle_id
    btrans_sound = assets.sounds["sfx_encounter"].play()
    btrans_active   = True
    btrans_timer    = 0

def switch(game):
    in_battle_transition = False

def update(game, dt):
    global btrans_active, btrans_timer
    if btrans_active:
        btrans_timer    += dt
        
        if btrans_timer >= BTRANS_DURATION:
            game.mos_enabled = False
            btrans_active    = False
            btrans_sound.stop()
            gamestate.switch_gamestate(game,"battle")
        
        game.mos_enabled = True
        cycle_progress   = (btrans_timer % BTRANS_PULSE_DUR) / BTRANS_PULSE_DUR
        game.mosaic      = max(1, math.floor(cycle_progress * 16))
        return

    balthasar.update()

    if controls.is_control_pressed(4): # DEBUG: battle 
        start_battle(0)

    if controls.is_control_pressed(0): # Fel
        balthasar.set_direction(DIR_UP)
    elif controls.is_control_pressed(1): # Le
        balthasar.set_direction(DIR_DOWN)
    elif controls.is_control_pressed(2): # Bal
        balthasar.set_direction(DIR_LEFT)
    elif controls.is_control_pressed(3): # Jobb
        balthasar.set_direction(DIR_RIGHT)

    walking = False 

    if controls.is_control_held(0): # Fel
        overworld.scroll_y -= WALK_SPEED * dt
        walking = True
    elif controls.is_control_held(1): # Le
        overworld.scroll_y += WALK_SPEED * dt
        walking = True
    
    if controls.is_control_held(2): # Bal
        overworld.scroll_x += WALK_SPEED * dt
        walking = True
    elif controls.is_control_held(3): # Jobb
        overworld.scroll_x -= WALK_SPEED * dt
        walking = True
     
    balthasar.set_walking(walking)

def draw(game):
    overworld.render(game)
    balthasar.render(game)