Solved Some entity/projectile problems?

hay, I did some testings on this topic but some problems occoured....:

About projectiles:

there is a .spawnArrow(loc, velocity, speed, spread);
is velocity just used for direction? because there is a seperated speed ...
... but shouldn't it be .spawnArrow(loc, direction, speed, spread) then?

Fireballs or other projectiles, doesn't have a speed... how to adjust something, which does not exist? xD
or is it the length of the velocity?

what is speed like? speed = 1 == 1 block per sec? 1 block per tick?

at what value is the virtual gravity? 0.981?

About entities:

I was trying to create a flying entity out of the EnderSignal.class ... i can spawn it manually but then it travels at insane speed to a fixed Location ... is there a way to create a different type (like MyEnderSignal) out of the given and maybe just change:
the way it moves
the amout of ticks until despawn?

why i want this: (open) why i want this: (close)

I try to create them as a flying warden, and they will shoot at u, if u are near them ... but u can catch them and use them as turrets or something ...

 

velocity gives the direction. I'm not sure if it is normalized when interpreted, but the way I see it, the speed is a multiplicative factor for the velocity.

You can set the speed/velocity of any entity, it is in the entity interface.

speed is measured in blocks/s

I guess that gravity is 9.8 blocks/s2. The blocks are 1 m wide, so it is all in meters/s, m/s2, etc...

When extending an EnderSignal, you have to override the l_() method, which governs the way the entity moves. Have a look here : https://github.com/Bukkit/mc-dev/blob/master/net/minecraft/server/EntityEnderSignal.java

 

ty Nitnelave

the l_() {} is too complicated to recreate ... because most of the variables are named like: a b c bd bc ... and i have no idea what they do or contain xD

NMS is crap xD

 

I looked to the code:
this.e = ticks the entity lived
this.U = the last X location
this.V = the last Y location
this.W = the last Z location
this.world.isStatic = if the world may update ticks
this.motX = velocity X
this.motY = velocity Y
this.motX = velocity Z
this.c = I think that this is the heigth, if the ender eye is higher than this, it wil move down (guessing)
this.G() = seems to control when it needs t change paticle (guessing)
float f = speed the velocity will be multiplied
super.l_(); = call parent move code
this.f = if this ender eye drops a item or dies when it end its track
this.setPosition(double,double,double) = updates the location of the entity

Hope this helped you understanding the code
Disclaimer: I just looked at the code and this is not tested if those things really represents what I think what they do