You should add groups based by account usernames. It should have a chat and also immunity to your groups members.So like your friends can all work together and get the most coins.

Allow mobile players to join.

• Fix viewport function for mobile
• Add mobile Joystick
• Hit button for mobile

Right now, the client uses interpolation to make movements smoother. The problem is that a player might appear in a different position on a clients screen, and they might actually be in a different position on the server. This sometimes breaks collisons and hit reg. We have to make the server predict where the player might show up for that specific client and check accordingly. Heres how I picture it:

• Get time when player movement sent to a specific client
• Add clients ping to that time. This will be the time when player started moving on that client.
• When that client sends a hit, get current time and Minus the player starting moving time. This will be the time spent moving
• Using a loop, run interpolation logic on server for time spent moving.
• Get the position from interpolation on server, and check collisions with that instead of actual position

Idk if this will work, this is just theory

Small players are faster, big players are slower. Set speed accordingly.

So that people don't conquer the whole map. When you hit scale 10, you will "win" the game.

Make coins give you less scale as you grow big! So that people don't get op quickly

you don't need to know that you have 69.696969 fps.

Sending "move" with controller moves the player by 5px.

People with higher fps sends move more times than people with less FPS

Server side update position by fps

When attempting to join a swordbattle.io game in the latest version, the following error appears:

Error while verifying captcha
invalid-input-secret

Make a better respawn system that doesn't just refresh the page. Also don't disconnect the sockets when they die.

When I try and play the game (in new tab), this error message appears:

Failed to connect to the server, please try a different server or contact devs.
Error: websocket error

Vulnerability:

If someone were to wait for socket.io to load, then overwrote the io function, they could perform a man-in-the-middle attack and hack/bot the game.

How to fix it:

You would need to webpack the socket.io script into your main code, that way it can't be overwritten.

Add a visual border on the client so people can see where the border is. Right now the border is invisible.

Replit's hosting is great for basic websites. However, if it was ever, this isn't a basic website anymore. Maybe use some sort of free hosting like Heroku, vercel etc - I don't know what JS apps would use

This would probably help with performance a lot!

Since small people are moving so fast the server misses some points the player has been at.
Sometimes players don't pick coins if they move too fast.
Fix this by using eclipse circle collision instead of circle circle

When someone get's hit, they get pushed back. Make sure they can't escape the border this way.

I think you should add a mini map to help players know their location on the map, and so that you can just hide from your opponents.

So that there is no autoclicking

The end screen isn't responsive to the screen size.

New high score 😉

A leaderboard that shows the players with the most coins

Big players have high resistance and high power.
Small players have low resistance and low power.
Deal knockback according to resistance and power

Add a home screen before player joins into game.

Big players do more damage, and have more health, small players have less health, and do less damage.

Broken by the fix for #13

Kinda goes with #10

Make it so that people aren't one shot. People's health will be reduced when they get hit. When health is 0, kill them.

• Health Property in Player Class
• Take damage when hit
• Health Bar

A lot of times people will use bad words in their names but that shouldn't be allowed.

When player resizes the game, the game should adapt to the new screen size.
Also should fix sword rotation on resize.

You regen health if you aren't hit for the past 5 seconds

Let players have names.
There should be a textbox in Home Screen
#5

The player name should be displayed above player in game.

Leave your skin idea’s here
@codergautam
Template for sword:

so that u how many u killed

you can do this with cookies

you can add a leaderboard too if you want

Ay ay, please install some Visual Studio Code extensions (formatters like Prettier and linters like ESLint) and format your documents/files.

If the up and the right key are pressed at the same time (two motions activated), the motion forward will be 0.707normal speed and the motion to the right will be 0.707 normal speed.

When player get's big, the nametag and healthbar doesn't move up to compensate.

• Nametag Position
• Healthbar position

Right now the client sends hitbox packets to the server, which means it can easily be spoofed.

Calculating hitbox on server side reduces risk of reach/infiniteaura hack

• Server-sided SwordPos
• Server-sided Hitbox

Use client prediction to predict the state of the other players, makes gameplay smoother and less choppy movement.

https://www.gabrielgambetta.com/client-server-game-architecture.html

• Enemy Client Side Prediction
• Player Client Side Prediction
• Calculate Enemy Server Side Interpolation

Move with your mouse. Suggested by kog.

Create a how to play button in the home page with basic instructions on how to play sword.io!

Add collectibles like coins that the player can collect.

Should be dropped when a player dies, and should also randomly spawn around the map.

Right now sword animation looks a bit bad make the sword smoothly swing.

Add sound in the game

like when you move it doesnt show up on the other clients

When you collect a coin, the player gets bigger. After a while, the player gets so big that it fills the whole screen. To prevent this, we must zoom out the camera when the player gets a coin.

Add an options menu with things like:

• Volume control, separated across sections like music and SFX
• Disabling #38
• Possibly different game backgrounds instead of just grass
• Text font options?

The coins that spawn when you die still show up after respawn. Clear it.

Rewrite the client in PIXI. This will be a hard thing to do, but it's necessary. Phaser has some limitations, and PIXI allows more control over the client.

For a better combat experience

• Circle Circle Collision on onMove

Add an effect that comes when you hit someone. Helpful for knowing if you hit someone.