如果同学们看过电影《头号玩家》，那么你会很容易理解我们将要实现的游戏，你也应该会相信未来的数字世界一定是基于区块链技术。
没错！我们要一起实现一个简单版本的“Oasis”（绿洲），这是一个基于区块链的游戏世界。从最基本的玩家属性设计开始，实现代币发放，虚拟道具交易，具体游戏场景等。 希望每位同学都能为这个项目做出贡献。
build_release.sh升级 之前这个脚本只能给定合约的名字，合约需要在当前目录并且只有一层路径。 现在稍加改动之后可以使用合约路径（多层级路径，最后一级为合约名目录），使用方式如下：（其中Players目录为合约cpp文件所在目录）
sh build_release.sh player ./oasis/contracts/Players游戏设计 主要包含以下模块：
- Player
- Market
- Product
- Game
- eosio.token OAS
主要模块如下：
类定义如下：
- 创建一个新账户player
cleos create account eosio player EOS8eHNwPjCvcQRnUP1feykKmKexWkRz5zXznK3GTJFPibut7kiaM EOS7UN5ZY6WYpVhjkjPG4bh5rQxHgAeFKnjLBNok22cATD82JPjai- 部署合约Player
sh build_release.sh player ./oasis/contracts/Players- 调用合约添加player
# cleos push action {account} {action_name} '{data}' -p {account}@active
cleos push action player add '["player","player_1"]' -p player@active- 查询Player 直接查看table：
cleos get table player player player
{
"rows": [{
"account_name": "12415831931030077440",
"username": "player_1",
"level": 1,
"health_points": 1000,
"energy_points": 1000,
"abilities": [],
"inventory": []
}
],
"more": false
}
调用合约Action：getplayer
cleos push action player getplayer '["player"]' -p player@active
executed transaction: cf4f8d0df009e161f3c4052b477646790ad5f71806f6158db0a6399288f3c96b 104 bytes 1274 us
# player <= player::getplayer {"account":"player"}
>> Username: player_1 Level: 1 Health: 1000 Energy: 1000 No Abilities Empty inventory- 更新Player
cleos push action player update '["player",10,65,110]' -p player@active查看更新后的Player：
cleos push action player getplayer '["player"]' -p player@active
executed transaction: f3623349ec91f7493d2e0f16bc9bcfa46a36484b14c18737317471528feaa612 104 bytes 1289 us
# player <= player::getplayer {"account":"player"}
>> Username: player_1 Level: 10 Health: 935 Energy: 890 No Abilities Empty inventory- 增加技能
cleos push action player addability '["player","running"]' -p player@active查看Player技能：
cleos push action player getplayer '["player"]' -p player@active
executed transaction: 7781bc99fdd3a4141495586c9408151d0e4e5d692780d68b474012e5dd262ff1 104 bytes 1527 us
# player <= player::getplayer {"account":"player"}
>> Username: player_1 Level: 10 Health: 935 Energy: 890 Abilities: running Empty inventory
- 增加item
cleos push action player additem '{"account":"player","purchased_item":{"item_id":1,"name":"knife","power":50,"health":300,"ability":"heal fast","level_up":0}}' -p player@active
executed transaction: f68d78e24e56cb53be226fd8e503fda09833f20f7dafc89feca0cf3fe24660f8 152 bytes 2295 us
# player <= player::additem {"account":"player","purchased_item":{"item_id":1,"name":"knife","power":50,"health":300,"ability":"...
>> Item Id: 1 | Name: knife | Power: 50 | Health: 300 | Ability: heal fast | Level up: 0查看Player新的item：
cleos push action player getplayer '["player"]' -p player@active
executed transaction: 30a1cdebf7136f3739d372cf16a1aa82918d9a096c2ab9582fd39db9be121324 104 bytes 2635 us
# player <= player::getplayer {"account":"player"}
>> Username: player_1 Level: 10 Health: 1235 Energy: 940 Abilities: running heal fast Items: knife == - 一个供参考的Oasis: https://github.com/dabdevelop/playerone