[Trigger] relative distance

[Supermj]

is there a way to make a unit always be exactly as far from a unit with the same angle? Even when the units moves? If so, how?
If not... that is all...

 

[GhostWolf]

Explain in more then one sentence. Period.

 

[HappyTauren]

He wants to know if it is possibile to keep the unit on the EXACT distance from the another one all the time. This IS possibile, but will require jass and timers.

 

[Just_Spectating]

why not periodic event and move instantly action?

 

[Hairybeavet]

why not periodic event and move instantly action?

well if that is the case and you have a very fast periodic event... it would still look glitchy...

and when you say same angle... do you mean that, lets use a wisp, when hero furion moves, then the wisp will be at an 90 degree angle at all times. or would you have the wisp follow furion from behind at all times? or have the units alway be looking one way... like always see the front side of the wisp?

 

[Supermj]

I have thought of a better way to describe it. Like having a wisp wheel around one unit, but you control how/if/where it spins. That should describe it better.

 

[GhostWolf]

You mean like this ? (look at the gif below)

 

[Supermj]

Good job, I've actually created a solar system before (Though your looks easier). But can the "sun" be ordered to move, ad can the "planet" be controlable with the arrowkeys? (no need for the moon, though I might replace my system with that one in another game.)

 

[GhostWolf]

Good job, I've actually created a solar system before (Though your looks easier). But can the "sun" be ordered to move, ad can the "planet" be controlable with the arrowkeys? (no need for the moon, though I might replace my system with that one in another game.)

Yes. With my system you can "attach" a moon to any unit you want.
You can't however use vJass...

If you want I will create a circling unit function in Jass using Handlevars.

 

[Supermj]

The point isn't to make it so it will constantly move around the units in a circle (i can do that.) the point is to make a unit be an aimer, and have another unit, so you can make the aimers aim and then use an ability to fire. I already found an aimer model... so I just need to make it so I can use the arrow keys to move it to a certain spot around the unit for aiming.

 

[GhostWolf]

I see. Whats the problem then ? A player presses a key, move unit towards that direction by X.

 

[Supermj]

Moves in a circle around the other unit by x...

like this text demostration:

   _____x___    
  /         \
 /           \
|      o      |

The lines are where the aimer can move, the o is where you are, and the x is where the aimer currently is. You press the right arrow key, and it moves the aimer to the right on the circle (sorry, I only drew in half of it), and you press the left arrow key, it moves the aimer to the left on the circle, but this still allows the unit to move, and still be in the center of the circle.

 

[HINDYhat]

Trigonometry course:

The Pythagorean theorem:
Valid for any right triangle (a triangle with one 90 degree angle):
a^2 + b^2 = c^2
Where c is the longest side, opposite to the 90 degree angle, also called the hypotenuse. a and b are the two remaining sides. This originates from tons of fucked up stuff I'm too arsed to explain without providing good drawings.

Now, there's a relation between angles and side lengths in a right triangle. Just think about it : larger angle -> larger side. So now to introduce new functions cosine, sine and tangent:

cosine A = b/c
Where A is the angle adjacent to b, and c is the hypotenuse

sine A = a/c
Where A is the angle opposite to a, and c is the hypotenuse.

tangent A = a/b
Where A is the angle opposite to a, and b is the side adjacent to A.

Now, in this case, Wc3 is forming right triangles everywhere. Think about it: the difference in Y position of two units would be the height of the triangle, and the difference in X position of two units would be the base of the triangle. This means that you can find the resulting distance using sine and cosine to effectively project a unit with a certain distance towards a certain direction:

new x = old x + cos(angle)*distance
new y = old y + sin(angle)*distance

You can work this out to fix your problem. I'd help more but I have to go to sleep.

 

[Just_Spectating]

so you want to make like a "model" infront of the hero that will always be infront no matter what as if he had a gun with a laser pointer on it?

 

[GhostWolf]

so you want to make like a "model" infront of the hero that will always be infront no matter what as if he had a gun with a laser pointer on it?

Not in front. He wants it to be able to circle around the hero using the left and right keys.

Supermj, if you didn't get it alone yet, just use what HINDY gave you, move the "target" model to that position every 0.05 or so, and when a player clicks on the left/right keys, reduce/raise the angle's value.

 

[Supermj]

Yeah, that's what i'll have to do.

 

[PoseidonsFury]

Maybe try making regions around the Hero in a circle. Each time the hero moves away from the regions, make sure that the units following distance is kept at the same rate, else he will just keep circling at the regions