Creating structure for the game events (#3)

* Adding the GameVent model and migration * Initializing the GameEvent endpoint * GameEvent listing endpoint * Adding CLICK_NAIVE event * Added signal for identify what is on the click location * Using row and col integer is better than metadata with jsonfield * Create event for the same position is not allowed * Better signals control * Adding a board progress to Game model * Identifying the win status * Hide generated board from client
2020-11-07 00:29:51 -03:00
parent 733f3e5992
commit 26de57fbfc
15 changed files with 494 additions and 14 deletions
--- a/game/signals.py
+++ b/game/signals.py
@@ -0,0 +1,92 @@
+from django.db.models.signals import post_save, pre_save
+from django.dispatch import receiver
+
+from .models import Game, GameEvent, EventTypes, GameStatuses
+from .game import Minesweeper
+
+
+@receiver(post_save, sender=Game)
+def game_start(sender, signal, instance, **kwargs):
+    """ If the game was just created, insert the first event START_GAME """
+    if not instance.status == GameStatuses.NOT_PLAYED:
+        return
+    GameEvent.objects.get_or_create(game=instance, type=EventTypes.START_GAME)
+
+
+@receiver(pre_save, sender=GameEvent)
+def identify_click_event(sender, signal, instance, **kwargs):
+    """ Verify what is on the naive click: mine, point or empty """
+    if not instance.type == EventTypes.CLICK_NAIVE:
+        return
+
+    if instance.row is None and instance.col is None:
+        return
+
+    ms = Minesweeper(
+        instance.game.rows,
+        instance.game.cols,
+        instance.game.mines,
+        instance.game.board,
+    )
+
+    if ms.is_mine(instance.row, instance.col):
+        instance.type = EventTypes.CLICK_MINE
+
+    elif ms.is_empty(instance.row, instance.col):
+        instance.type = EventTypes.CLICK_EMPTY
+
+    elif ms.is_point(instance.row, instance.col):
+        instance.type = EventTypes.CLICK_POINT
+
+
+@receiver(post_save, sender=GameEvent)
+def create_post_save_game_event(sender, signal, instance, **kwargs):
+    ms = Minesweeper(
+        instance.game.rows,
+        instance.game.cols,
+        instance.game.mines,
+        instance.game.board,
+        instance.game.board_progress,
+    )
+    game_changed = False
+
+    reveal_events = [
+        EventTypes.CLICK_POINT,
+        EventTypes.CLICK_EMPTY,
+        EventTypes.CLICK_MINE,
+    ]
+    if instance.type in reveal_events:
+        ms.reveal(instance.row, instance.col)
+        instance.game.board_progress = ms.board_progress
+        game_changed = True
+
+    playing_events = [
+        EventTypes.START_GAME,
+        EventTypes.RESUME,
+        EventTypes.CLICK_POINT,
+        EventTypes.CLICK_EMPTY,
+        EventTypes.CLICK_FLAG,
+    ]
+
+    if instance.type in playing_events:
+        instance.game.status = GameStatuses.PLAYING
+        game_changed = True
+
+    elif instance.type == EventTypes.PAUSE:
+        instance.game.status = GameStatuses.PAUSED
+        game_changed = True
+
+    elif instance.type == EventTypes.CLICK_MINE:
+        instance.game.status = GameStatuses.FINISHED
+        instance.game.win = False
+        game_changed = True
+
+        GameEvent(game=instance.game, type=EventTypes.GAME_OVER).save()
+
+    if ms.win() is True:
+        instance.game.status = GameStatuses.FINISHED
+        instance.game.win = True
+        game_changed = True
+
+    if game_changed is True:
+        instance.game.save()