Help on calculating 3d distances

[lucasmontec]

I'm working on a smart HUD helper with the super advanced HUD indicators and i need to calculate the distance between me and an other player using 2 target finders. One target finder would tell my position while the other would tell his (in X Y Z), than ill get the distance between us and show in the adv HUD indicator.

Probably its an easy formula...

[d3cr1pt0r]

Make an expression2 like this:

@name 
@inputs You:entity Him:entity
@outputs VectorDistance:vector
@persist X Y Z
X = abs(Him:pos():x() - You:pos():x())
Y = abs(Him:pos():y() - You:pos():y())
Z = abs(Him:pos():z() - You:pos():z())

VectorDistance = vec(X,Y,Z)

Wire You:entity and Him:entity to 2 target finders.

[IamMcLovin]

Just wire Tar1 to the first target finder for Target1 and Tar2 to target finder for Target2.

@name Target Calculator
@inputs Tar1:entity Tar2:entity
@outputs Xo Yo Zo
@persists Vec:vector
interval(10)
Vec = Tar1:pos() - Tar2:pos()
Xo = Vec:x()
Yo = Vec:y()
Zo = Vec:z()

[d3cr1pt0r]

Just wire Tar1 to the first target finder for Target1 and Tar2 to target finder for Target2.

@name Target Calculator
@inputs Tar1:entity Tar2:entity
@outputs Xo Yo Zo
@persists Vec:vector
interval(10)
Vec = Tar1:pos() - Tar2:pos()
Xo = Vec:x()
Yo = Vec:y()
Zo = Vec:z()

He will get negative distance outputs that way. Use abs() to avoid negativity

[Whodunnit]

erm magnitude of a vector between two points is:

((x1-x2)^2 + (y1-y2)^2 + (z1-z2)^2)^.5


the other suggestions are incorrect... they found the direction vector between you and enemy , then abs'd them which probably fucks it up( inverts the vector componants if they are negative, if you ever reused them they might be incorrect for other applications), then they didnt even find the magnitude of it to give you a distance value.

you could just use the vector length function anyway....

@name Target Calculator
@inputs Tar1:entity Tar2:entity
@outputs Distance
@persists Vec:vector
Vec = Tar1:pos() - Tar2:pos()
Distance = Vec:length()

finally, if you wanted the individual componants , dont abs the z value because its useful to see if he is above or below you.

[TomyLobo]

even shorter:

@name Target Calculator
@inputs Tar1:entity Tar2:entity
@outputs Distance
@persists Vec:vector
Distance = Tar1:pos():distance(Tar2:pos())

[Nicolai1]

even shorter:

@name Target Calculator
@inputs Tar1:entity Tar2:entity
@outputs Distance
@persists Vec:vector
Distance = Tar1:pos():distance(Tar2:pos())

You forgot interval

[Azrael]

@name 
@inputs You:entity Him:entity
@outputs VectorDistance:vector
@persist X Y Z
X = abs(Him:pos():x() - You:pos():x())
Y = abs(Him:pos():y() - You:pos():y())
Z = abs(Him:pos():z() - You:pos():z())

VectorDistance = vec(X,Y,Z)

You're doing it completely wrong. That doesn't return the distance, that returns the difference between them. Here's what you'd want to do:

VectorDistance = (Him:pos() - You:pos()):length()

[Whodunnit]

interval is unnecessary for this....

[Syranide]

You forgot interval

interval is only if you want to do something that is _independent_ of inputs, this is highly dependent on inputs, no point in interval.

interval is unnecessary for this....

exactly.