[1.8] Event that is fired each tick?

[Cerandior]

Well i need this more for an "experimental" fun type of thing. I want each player on the world to be affected by the earth gravitational pull. G force gives the objects that are very close to the earth's surface an acceleration of approx 9.8 m/s^2. Of course that this acceleration is not the same for objects that have a distance from earth's surface but it would be pointless for me to calculate the acceleration on minecraft for objects that are high up on the ground considering that the minecraft world has a radius of 256 blocks/meters. Anyway, i need an event that is fired each tick. I will get a list of players on the world and add 0.49 at their motion Y. Which means that each player will accelerate in the negative Y axis on a value of 9.8 blocks/ second. To be able to do this correctly i also want to know what is the default acceleration value that minecraft uses to simulate gravity.

 

Thank you for your time

[Ernio]

TickEvent's sub-events. Eventually LivingUpdateEvent.

 

Acceleration is probably in Entity itself. I don't remember.

[Draco18s]

...Entities already have gravitational downward motion..?

[Cerandior]

...Entities already have gravitational downward motion..?

 

I think you didnt get my point. I am doing this for fun. Testing different accelerations. It is true that entities have downward motion but i want to simulate the gravity on earth at minecraft. Shortly i want to see how will the minecraft world change if i change the motion value.

[jeffryfisher]

Start reading the vanilla code for entities, living entities etc. As I recall, they reach terminal velocity rather rapidly. They also interact with water.

 

If you're going to "have fun", then you should not only have gravity give an impetus, but you should also have air and water resist per speed in a way that results in equilibrium (terminal velocity in air or water). Once that's done, then you'll be ready to simulate gravity on the Moon or Mars (good luck finding air or water there).

[Draco18s]

...Entities already have gravitational downward motion..?

 

I think you didnt get my point. I am doing this for fun. Testing different accelerations. It is true that entities have downward motion but i want to simulate the gravity on earth at minecraft. Shortly i want to see how will the minecraft world change if i change the motion value.

 

You missed my point.  The downward acceleration already experienced is identical to that of Earth's.

It would make sense if you wanted to fiddle with those values, sure, but making them "Like Earth" involves "Doing Nothing."

[Cerandior]

I haven't looked into this yet because of busy school projects and exams. However it seems to me that mindcraft has a terminal velocity and entities stop accelerating after a while, something that they wouldn't do in real life.

[Draco18s]

You mean like the real life effect that occurs do to air resistance and really, actually, exists and effects all objects?

 

https://en.m.wikipedia.org/wiki/Terminal_velocity

[Cerandior]

Yes. As i said in initial comment, the minecraft world has a small radius to make proper simulations, however i would like to try.

[Draco18s]

By all means, do whatever.

 

Just keep in mind that every entity handles its own movement.  That is, gravitational acceleration is handled in multiple places, depending on the entity type.