How to set Yaw and Pitch

[rover2341]

About
I am trying to figure out how to use SetUnitLookAt to set my Yaw and pitch.
I changed my model like the quote said, and I can make my model angle at another unit. But I cant figure out how to set the Yaw and Pitch to what i want, with only 1 unit.

You use dummy which has its main bone named "head" and then rotate it with SetUnitLookAt

What I Did
I changed the name of bone_head and it worked.

What Works
Now With 2 units I can have one look at the other at the with yaw and pitch.

What I still Need
I want 1 Unit to be set at yaw and pitch. (x = pitch) (y = yaw)
I understand how to work with "SetUnitLookAt"

Code
Code is done in vJass.

library SetupGame initializer InitA

    function environment takes nothing returns nothing
        call SetSkyModel( "Environment\\Sky\\LordaeronSummerSky\\LordaeronSummerSky.mdl" )
        call FogEnableOff(  )
        call FogMaskEnableOff(  )
        call UseTimeOfDayBJ( false )
        call SetTimeOfDay( 12 )
    endfunction

    
    function createUnitWithYawAndPitch takes nothing returns nothing
    
        local integer myUnitType = 'Trac'
        local unit myUnit
        local unit myUnit2
        
        set myUnit = CreateUnit(Player(0),myUnitType,200,200,90) 
        set myUnit2 = CreateUnit(Player(0),myUnitType,0,0,90) 
        call SetUnitFlyHeight(myUnit,400,0)
        call SetUnitLookAt(myUnit,"head", myUnit2, 0,0,0)

    endfunction  

//===========================================================================
    function InitA takes nothing returns nothing
        
        call createUnitWithYawAndPitch()
        call environment()
        
    endfunction
     
endlibrary

 

[rover2341]

Bump.

If anyone could give me any information on if this is possible or not, or how to do it would be great. Thanks

 

[rover2341]

I updated the first post, with new info, I am a few steps farther then i was before. I just need help figuring out how to work it now.

 

[uberfoop]

Tell the unit to look at itself, and use the 3 offsets to get yaw and pitch. I am assuming that theta is measured via the standard method of counterclockwise from 0, and phi is measured as the angle up from the horizon. Because that's how I do math.

Anyhow:

Yaw:
x = Cos(pitch)*Cos(yaw)
y = Cos(pitch)*Sin(yaw)

Pitch:
z = Sin(pitch)


So basically:
[ljass]call SetUnitLookAt(myUnit,"head", myUnit,Cos(pitch)*Cos(yaw),Cos(pitch)*Sin(yaw),Sin(pitch))[/ljass]

Note that I didn't actually test this, but its math seems to check out. It should work as long as wc3 doesn't take issue with small distances, at which point you could probably fix it by multiplying each of those 3 new values by 1000 or something.

This is accomplished mathmatically by assuming a unit vector points, in spherical coordinates, as <1,yaw,pitch>, and solving for the side lengths.

 

[rover2341]

Ill Give it a shot. Ill update this post, after I try it out. Thanks


Edit*
It Works, I had issues at first because I was sending in degrees when it wanted radians but I fixed that. Thanks alot.

Here is updated code

library SetupGame initializer InitA

    function environment takes nothing returns nothing
        call SetSkyModel( "Environment\\Sky\\LordaeronSummerSky\\LordaeronSummerSky.mdl" )
        call FogEnableOff(  )
        call FogMaskEnableOff(  )
        call UseTimeOfDayBJ( false )
        call SetTimeOfDay( 12 )
    endfunction

    
    function createUnitWithYawAndPitch takes nothing returns nothing
    
        local integer myUnitType = 'Trac'
        local unit myUnit

        local real yaw = 90
        local real pitch = 90
        
        set myUnit = CreateUnit(Player(0),myUnitType,0,0,0) 

        call SetUnitFlyHeight(myUnit,400,0)
        call SetUnitLookAt(myUnit,"head", myUnit,CosBJ(pitch)*CosBJ(yaw),CosBJ(pitch)*SinBJ(yaw),SinBJ(pitch))

    endfunction  

//===========================================================================
    function InitA takes nothing returns nothing
        
        call createUnitWithYawAndPitch()
        call environment()
        
    endfunction
     
endlibrary

 

[Nexor]

This:

local unit myUnit

        local real yaw = 90
        local real pitch = 90
        
        set myUnit = CreateUnit(Player(0),myUnitType,0,0,0)

to this:

local unit myUnit = CreateUnit(Player(0),myUnitType,0,0,0)

        local real yaw = 90
        local real pitch = 90

 

[rover2341]

Thanks

 

[Nherwyziant]

Remove BJ

call FogEnableOff(  )
call FogMaskEnableOff(  )
call UseTimeOfDayBJ( false )
call SetTimeOfDay( 12 )

More awesome

call FogEnable(false)
call FogMaskEnable(false)
call SuspendTimeOfDay(not false)
call SetFloatGameState(GAME_STATE_TIME_OF_DAY,12.)

 

[Laiev]

you can replace the CosBJ and other BJ's in this line.

 

[saw792]

>[ljass]not false[/ljass]

Ahem... [ljass]true[/ljass]

 

[Narks]

[LJASS]not not true[/LJASS]

I wonder if that compiles...

 

[Nherwyziant]

[ljass]not true[/ljass]

is what the function list says, hmm

 

[rover2341]

apparently this doesn't work if the unit is at 0,0. I tried different spots and it wont show up.

 

[Narks]

I remember something about multiplying the values given to SetUnitLookAt by a million to offset some z-level error or something. It was on wc3c, if it comes back up I'll link the post.