Entities:
- Player: Represents individual players in the game.
- Attributes: PlayerID (Primary Key), Name, ClanID (Foreign Key), Troops, Spells, Resources, etc.
- Clan: Represents clans that players can join.
- Attributes: ClanID (Primary Key), Name, Members (Foreign Key referencing Player), ClanPoints, ClanLevel, etc.
- Troop: Represents the different types of troops available in the game.
- Attributes: TroopID (Primary Key), Name, Attack, Defense, Cost, etc.
- Spell: Represents the different spells available in the game.
- Attributes: SpellID (Primary Key), Name, Damage, Range, Cost, etc.
- Resource: Represents the different resources available in the game.
- Attributes: ResourceID (Primary Key), Name, Quantity, etc.
- Defense: Represents the different types of defenses that can be placed in the player's village.
- Attributes: DefenseID (Primary Key), Name, Health, Attack, Cost, etc.
- Obstacle: Represents the different types of obstacles that can be placed in the player's village.
- Attributes: ObstacleID (Primary Key), Name, Cost, etc.
- Hero: Represents the different heroes available in the game.
- Attributes: HeroID (Primary Key), Name, Attack, Defense, Cost, etc.
Relationships:
- Player to Clan: A many-to-one relationship, as multiple players can belong to one clan, but each player belongs to only one clan.
- Player to Troop: A many-to-many relationship, as players can have multiple troops, and troops can belong to multiple players.
- Player to Spell: A many-to-many relationship, as players can have multiple spells, and spells can belong to multiple players.
- Player to Resource: A one-to-many relationship, as each player has multiple resources, but each resource belongs to only one player.
- Player to Defense: A one-to-many relationship, as each player can have multiple defenses, but each defense belongs to only one player.
- Player to Obstacle: A one-to-many relationship, as each player can have multiple obstacles, but each obstacle belongs to only one player.
- Player to Hero: A one-to-one relationship, as each player can have one hero, and each hero belongs to only one player.
This ERD provides a simplified view of the database structure for Clash of Clans, focusing on the core entities and their relationships. It's important to note that the actual game database would be much more complex, including additional entities and relationships to handle game mechanics, player progress, and more.
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