Introduce better player experience

[danilko]

Game Screen

• [x] As a player, I want to have a better screen indicator to notify about incoming friend agents/enemy agents
• [x] As a player, I want to able display both weapon system status more cleanly
• [x] As a player, I want to have minimap to help locate agents and bases and other indicators

Initial Screen/Server Screen/Join Screen

• [x] As a player, I want better way to indicate which user I join as part of start/join server instead of current numeric team representation
• [x] As an admin, I want a way to control map's team setup (initial amounts etc.) during server setup

[danilko]

Work on As a player, I want to able display both weapon system status more cleanly

This involved better UI and a more manageable inventory system

Inventory System

• [x] Ability to show inventory
• [x] Ability to change weapon from inventory
• [x] Ability to use weapon from inventory
• [x] Ability to purchase more weapon/other items
• [x] Ability to drop unit from inventory to battlefield
• [x] Ability to purchase additional item

[danilko]

Work on

• Ability to show inventory

Start to work on initial inventory system UI. User can trigger through "B" key while in game to trigger inventory

[danilko]

With latest commits, complete following across network sync

• Ability to show inventory
• Ability to change weapon from inventory
• Ability to use weapon from inventory
• Ability to purchase more weapon/other items
• Ability to drop unit from inventory to battlefield
• Ability to purchase additional item

The high level design is following:

When an action is trigger on client side, will send the action steps, currently cover following:

• Purchase Item
• Sell Item
• Use Item
• Equip Item
• Unequip Item
• Drop Item

To Server, server then base on logic and process:

• If server determine base on logic, the step can be carried out, then carry out, otherwise refuse to carry the step
• No matter if the step is carried out or not, the server will generate the effect agent's entire inventory and equip status, and send the state to all clients

The reason second step is important is it is possible the client may miss an update in past, and so cause this transaction to fail, so use this opportunity to "force" the setup

However, it does produce more network load especially during lot of agent creation steps. Create a defect to track it https://github.com/danilko/topdown-2d-multiplayer/issues/8

[danilko]

There is also still some problem with inventory drop/usage.

Sometime clients are not sync up with server:

• [x] Usage of item did not reflect health
• [x] Item drop location is not always consist between server and clients

[danilko]

This is fixed in latest commits:

• Item drop location is not always consist between server and clients

However, for the health not recover issue, it seem it did recover, but just always not propagate fast enough depend on network situation, so will category under this issue https://github.com/danilko/topdown-2d-multiplayer/issues/8

[danilko]

Following are fixed in the latest commit Usage of item did not reflect health -> Fix As a player, I want better way to indicate which user I join as part of start/join server instead of current numeric team representation -> Fix now with team name indication and team color As an admin, I want a way to control map's team setup (initial amounts etc.) during server setup Demo https://www.youtube.com/watch?v=DLI8xl845ag

This wrap up this round of initial implementation