[Trigger] Curve Motion

[Kingz]

I need a function for curved motion on the Z axis for missiles.
In my post there is an attached picture of the function i would need.
Also a function for a curve motion for x/y axis's is optional.
I don't care wheter it's a simple calculation or a JASS function as long as it works.

 

[Rmx]

Try to search or google the code for Wild Axe i only found it in Jass but i forgot where it was from.

It's the ability WILD AXE in DOTA. it have the curves and everything EPIC.

EDIT : I just found it in GUI version but not MUI

http://www.hiveworkshop.com/forums/f269/memory-leaks-43343/

It is called ... Leaks don't mind that it is an old topic in HIVE so i think it will help even to find if it leaks or not

Here it is i hope it helps u

If ur having any trouble with this BIG triger and confusing i can send u my own MUI version but it is not as good as this triger it will go to the target location very well but in the return well it's very very bad.

 

[Kingz]

I need Z curve motion not X/Y Rmx.
And i need it to be functional.

 

[Fingolfin]

I need Z curve motion not X/Y Rmx.
And i need it to be functional.

Make a 2d grade equation and change x to z and y to x.
then make a loop with a small wait increasing the z value eaxh step.


It's a bit hard to explain, but let's say we use x=-p/2+-√(p/2)² -q
then we can make a dummy unit with the former x value as flying height, and use y as x.

So lets say we have the equation y = x² -6x -5.
when the trigger runs a dummy missile is created and a loop started, and every 0.10 sec the units flying height is changed to the input x value wich increases every time the loop passes. the first x point (the x-q(wich is 5) should be the height from where the missile is shot.

Or well.. you would also like to find the vertex's relation to the lower x value, and when i think of it, this might be a little tricky. Still worh a try.

EDIT: I would still go for a function where y is in relation to x/distance between origin and target.

Ir order to make the dummy missile hit, you use something like this:

function doDamage takes unit u, unit caster, real dmg returns nothing
local location loc = GetUnitLoc(u)
local group g = CreateGroup()
local unit temp


loop
    exitwhen IsUnitAliveBJ(missile) == false
    call RemoveLocation(loc)
    set loc = GetUnitLoc(u)
    call GroupEnumUnitsInRangeOfLoc(g, loc, 80., null)
    set temp = FirstOfGroup(g)
    call DamageUnit(GetOwningPlayer(caster), dmg, u)
call GroupRemoveUnit(g, temp)
call TriggerSleepAction(0.10) 
endloop
call DestroyGroup(g)
set g = null
call RemoveLocation(loc)
set loc = null
set temp = null
endfunction

I'm not expecting you to use this in specific, i just copied and slightly changed a code i use for another feature, this actually damages everything that comes in contact with the missile. You would do better making your own.

 

[Dynasti]

Like a jump?

If jump you need to use Z as primary and xy for distance

If just upwards drift then you need to use the xy as primary and Z for height

 

[Kingz]

About like a half jump, example it will go up but won't go down or it will go down but it won't go up again, do you understand?
Something like a half jump parabola.

 

[Dynasti]

Just stop the parabola at half distance and start it from there again.

Like if you use a parabola formula that requires the distance and the current distance then just stop when current distance reaches half the distance

 

[Ciebron]

i love this parabola by shadow1500

function JumpParabola takes real dist, real maxdist,real curve returns real
    local real t = (dist*2)/maxdist-1
    return (-t*t+1)*(maxdist/curve)
endfunction

 

[Dynasti]

i love this parabola by shadow1500

function JumpParabola takes real dist, real maxdist,real curve returns real
    local real t = (dist*2)/maxdist-1
    return (-t*t+1)*(maxdist/curve)
endfunction

meh that one sucks

This owns

private function ParabolaZ takes real h, real d, real x returns real
  return (4 * h / d) * (d - x) * (x / d)
endfunction

or with curve

private function ParabolaZ takes real c, real d, real x returns real
  return (4 * c) * (d - x) * (x / d)
endfunction

 

[Ciebron]

private function ParabolaZ takes real h, real d, real x returns real
  return (4 * h / d) * (d - x) * (x / d)
endfunction

how does this work

 

[Kingz]

What about angle manipulation via that formula, example:

private function ParabolaZ takes real h, real d, real x returns real
  return (4 * h / d) * (d - x) * (x / d)
endfunction

How to adjust the angle's sharpness?

 

[Dynasti]

ok

h = Height
d = Distance
x = Current distance position in the Distance 'd'
c = Curve( replacement for height. ). I is how sharp the jump should be

 

[Kingz]

Thanks i think i figured that on my own after checking some of my spells i used parabola in but +rep anyway...