1"""This is the state that handles battles against
  2monsters"""
  3
  4import random
  5import pygame as pg
  6from .. import tools, battlegui, observer
  7from .. components import person, attack, attackitems
  8from .. import constants as c
  9
 10
 11class Battle(tools._State):
 12    def __init__(self):
 13        super(Battle, self).__init__()
 14        self.game_data = {}
 15        self.current_time = 0.0
 16        self.timer = 0.0
 17        self.allow_input = False
 18        self.allow_info_box_change = False
 19        self.name = 'battle'
 20        self.state = None
 21
 22        self.player = None
 23        self.attack_animations = None
 24        self.sword = None
 25        self.enemy_index = 0
 26        self.attacked_enemy = None
 27        self.attacking_enemy = None
 28        self.enemy_group = None
 29        self.enemy_pos_list = []
 30        self.enemy_list = []
 31
 32        self.background = None
 33        self.info_box = None
 34        self.arrow = None
 35        self.select_box = None
 36        self.player_health_box = None
 37        self.select_action_state_dict = {}
 38        self.next = None
 39        self.observers = []
 40
 41    def startup(self, current_time, game_data):
 42        """Initialize state attributes"""
 43        self.current_time = current_time
 44        self.timer = current_time
 45        self.game_data = game_data
 46        self.state = c.SELECT_ACTION
 47        self.next = game_data['last state']
 48
 49        self.player = self.make_player()
 50        self.attack_animations = pg.sprite.Group()
 51        self.sword = attackitems.Sword(self.player)
 52        self.enemy_group, self.enemy_pos_list, self.enemy_list = self.make_enemies()
 53        self.background = self.make_background()
 54        self.info_box = battlegui.InfoBox(game_data)
 55        self.arrow = battlegui.SelectArrow(self.enemy_pos_list,
 56                                           self.info_box)
 57        self.select_box = battlegui.SelectBox()
 58        self.player_health_box = battlegui.PlayerHealth(self.select_box.rect,
 59                                                        self.game_data)
 60
 61        self.select_action_state_dict = self.make_selection_state_dict()
 62        self.observers = [observer.Battle(self)]
 63        self.player.observers.extend(self.observers)
 64
 65    @staticmethod
 66    def make_background():
 67        """Make the blue/black background"""
 68        background = pg.sprite.Sprite()
 69        surface = pg.Surface(c.SCREEN_SIZE).convert()
 70        surface.fill(c.BLACK_BLUE)
 71        background.image = surface
 72        background.rect = background.image.get_rect()
 73        background_group = pg.sprite.Group(background)
 74
 75        return background_group
 76
 77    @staticmethod
 78    def make_enemies():
 79        """Make the enemies for the battle. Return sprite group"""
 80        pos_list = []
 81
 82        for column in range(3):
 83            for row in range(3):
 84                x = (column * 100) + 100
 85                y = (row * 100) + 100
 86                pos_list.append([x, y])
 87
 88        enemy_group = pg.sprite.Group()
 89
 90        for enemy in range(random.randint(1, 6)):
 91            enemy_group.add(person.Person('devil', 0, 0,
 92                                          'down', 'battle resting'))
 93
 94        for i, enemy in enumerate(enemy_group):
 95            enemy.rect.topleft = pos_list[i]
 96            enemy.image = pg.transform.scale2x(enemy.image)
 97            enemy.index = i
 98            enemy.level = 1
 99            enemy.health = enemy.level * 7
100
101        enemy_list = [enemy for enemy in enemy_group]
102
103        return enemy_group, pos_list[0:len(enemy_group)], enemy_list
104
105    @staticmethod
106    def make_player():
107        """Make the sprite for the player's character"""
108        player = person.Player('left', 630, 220, 'battle resting', 1)
109        player.image = pg.transform.scale2x(player.image)
110
111        return player
112
113    def make_selection_state_dict(self):
114        """
115        Make a dictionary of states with arrow coordinates as keys.
116        """
117        pos_list = self.arrow.make_select_action_pos_list()
118        state_list = [c.SELECT_ENEMY, c.SELECT_ITEM, c.SELECT_MAGIC, c.RUN_AWAY]
119        return dict(zip(pos_list, state_list))
120
121    def update(self, surface, keys, current_time):
122        """Update the battle state"""
123        self.current_time = current_time
124        self.check_input(keys)
125        self.check_timed_events()
126        self.check_if_battle_won()
127        self.enemy_group.update(current_time)
128        self.player.update(keys, current_time)
129        self.attack_animations.update()
130        self.info_box.update()
131        self.arrow.update(keys)
132
133        self.draw_battle(surface)
134
135    def check_input(self, keys):
136        """
137        Check user input to navigate GUI.
138        """
139        if self.allow_input:
140            if keys[pg.K_RETURN]:
141                self.notify(c.END_BATTLE)
142
143            elif keys[pg.K_SPACE]:
144                if self.state == c.SELECT_ACTION:
145                    self.state = self.select_action_state_dict[
146                        self.arrow.rect.topleft]
147                    self.notify(self.state)
148
149                elif self.state == c.SELECT_ENEMY:
150                    self.state = c.PLAYER_ATTACK
151                    self.notify(self.state)
152
153                elif self.state == c.SELECT_ITEM or self.state == c.SELECT_MAGIC:
154                    if self.arrow.index == (len(self.arrow.pos_list) - 1):
155                        self.state = c.SELECT_ACTION
156                        self.notify(self.state)
157
158            self.allow_input = False
159
160        if keys[pg.K_RETURN] == False and keys[pg.K_SPACE] == False:
161            self.allow_input = True
162
163    def check_timed_events(self):
164        """
165        Check if amount of time has passed for timed events.
166        """
167        timed_states = [c.DISPLAY_ENEMY_ATTACK_DAMAGE,
168                        c.ENEMY_HIT,
169                        c.ENEMY_DEAD]
170
171        if self.state in timed_states:
172            if (self.current_time - self.timer) > 1200:
173                if self.state == c.DISPLAY_ENEMY_ATTACK_DAMAGE:
174                    if self.enemy_index == (len(self.enemy_list) - 1):
175                        self.state = c.SELECT_ACTION
176                    else:
177                        self.state = c.SWITCH_ENEMY
178                elif self.state == c.ENEMY_HIT:
179                    self.state = c.ENEMY_DEAD
180                elif self.state == c.ENEMY_DEAD:
181                    if len(self.enemy_list):
182                        self.state = c.ENEMY_ATTACK
183                    else:
184                        self.state = c.BATTLE_WON
185
186                self.notify(self.state)
187
188    def check_if_battle_won(self):
189        """
190        Check if state is SELECT_ACTION and there are no enemies left.
191        """
192        if self.state == c.SELECT_ACTION:
193            if len(self.enemy_group) == 0:
194                self.notify(c.BATTLE_WON)
195
196    def notify(self, event):
197        """
198        Notify observer of event.
199        """
200        for new_observer in self.observers:
201            new_observer.on_notify(event)
202
203    def end_battle(self):
204        """
205        End battle and flip back to previous state.
206        """
207        self.game_data['last state'] = self.name
208        self.done = True
209
210    def attack_enemy(self, enemy_damage):
211        enemy = self.player.attacked_enemy
212        enemy.health -= enemy_damage
213        self.set_enemy_indices()
214
215        if enemy:
216            if enemy.health <= 0:
217                enemy.kill()
218                self.enemy_list.pop(enemy.index)
219                self.arrow.remove_pos(self.player.attacked_enemy)
220            self.enemy_index = 0
221            posx = enemy.rect.x - 32
222            posy = enemy.rect.y - 64
223            fire_sprite = attack.Fire(posx, posy)
224            self.attack_animations.add(fire_sprite)
225            self.player.attacked_enemy = None
226
227    def set_enemy_indices(self):
228        for i, enemy in enumerate(self.enemy_list):
229            enemy.index = i
230
231    def draw_battle(self, surface):
232        """Draw all elements of battle state"""
233        self.background.draw(surface)
234        self.enemy_group.draw(surface)
235        self.attack_animations.draw(surface)
236        surface.blit(self.player.image, self.player.rect)
237        surface.blit(self.info_box.image, self.info_box.rect)
238        surface.blit(self.select_box.image, self.select_box.rect)
239        surface.blit(self.arrow.image, self.arrow.rect)
240        self.player_health_box.draw(surface)
241        self.sword.draw(surface)
242
243    def player_damaged(self, damage):
244        self.game_data['player stats']['health']['current'] -= damage
245
246    def set_timer_to_current_time(self):
247        """Set the timer to the current time."""
248        self.timer = self.current_time