03052008, 07:58 AM  #31  
master of fugue
Join Date: Jun 2007
Posts: 2,453

Quote:
offtopic: And that is why grim001 never finishes anything.... 

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03052008, 04:29 PM  #32 
BuranX

cohadar yes it's true. and also he banned me in AIM xDDDD he's a bad ass xD
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06072008, 09:38 PM  #33 
User
Join Date: Jan 2007
Posts: 157

Great system, forced me to learn vjass too.
Anyways I'm having trouble with one thing that I just can't figure out. I want it to be like a "thrown" bouncy ball from a spell, and the velocity is calculated in XYZ, so how would I make the velocity take the ball towards the target? I'm also trying to make it so any kind of collision will make it bounce, like trees and stuff, but it's tough and will take time. I'm using items (like vexorian did I think) to check it if you are wondering, just the actual Z height of different models is what makes it difficult. Edit: Okay figured it out. I just did...well this in the creation part (and many other things, like making the trigger into a spell): JASS: static method create takes nothing returns bouncyBall local bouncyBall b = bouncyBall.allocate() local location l = GetSpellTargetLoc() local location l2 = GetUnitLoc(GetTriggerUnit()) local location l3 = PolarProjectionBJ(l2, 600, AngleBetweenPoints(l2, l)) set b.position = vector.create(GetUnitX(GetTriggerUnit()),GetUnitY(GetTriggerUnit()),75.0) //this is the thrower // give the ball a starting velocity set b.velocity = vector.create((GetLocationX(l3)  GetLocationX(l2))*MOVE_PERIOD,(GetLocationY(l3)  GetLocationY(l2))*MOVE_PERIOD,600.0*MOVE_PERIOD) set b.ball = CreateUnit(GetOwningPlayer(GetTriggerUnit()), 'ewsp', 0.0,0.0,0.0) // make it possible to change the unit's flyheight call UnitAddAbility(b.ball, 'Amrf') call UnitRemoveAbility(b.ball, 'Amrf') set balls[ballNum]=b set b.spot=ballNum set balls[ballNum].duration = 0 set ballNum=ballNum+1 call RemoveLocation(l) set l = null call RemoveLocation(l2) set l2 = null call RemoveLocation(l3) set l3 = null return b endmethod Last edited by ClichesAreSt00pid : 06072008 at 10:45 PM. 
08252008, 09:41 PM  #34 
User
Join Date: Aug 2008
Posts: 158

New Functions for Units
Hey,
I've had to add some new methods to your atruct, because i neede them! :D They all improve working with units and vectors! they are easey to use, and i think, that they're useful! JASS: library VectorLib // Credits: // ; to Waterknight for UnitZ funcs function GetFloorHeight takes real x, real y returns real local location whichUnitLocation = Location( x, y ) local real z = GetLocationZ( whichUnitLocation ) call RemoveLocation( whichUnitLocation ) set whichUnitLocation = null return z endfunction function GetUnitZ takes unit whichUnit returns real local real z = ( GetFloorHeight( GetUnitX( whichUnit ), GetUnitY( whichUnit ) ) + GetUnitFlyHeight( whichUnit ) ) set whichUnit = null return z endfunction function SetUnitZ takes unit whichUnit, real z returns nothing local boolean whichUnitHasNotAmrf = ( GetUnitAbilityLevel( whichUnit, 'Amrf' ) <= 0 ) if ( whichUnitHasNotAmrf ) then call UnitAddAbility( whichUnit, 'Amrf' ) endif call SetUnitFlyHeight( whichUnit, z  GetFloorHeight( GetUnitX( whichUnit ), GetUnitY( whichUnit ) ), 0.00 ) if ( whichUnitHasNotAmrf ) then call UnitRemoveAbility( whichUnit, 'Amrf' ) endif set whichUnit = null endfunction globals private location loc = Location(0.0,0.0) endglobals struct vector real x real y real z static method create takes real x, real y, real z returns vector local vector v = vector.allocate() set v.x=x set v.y=y set v.z=z return v endmethod static method setUnitVector takes unit c, vector v returns nothing call SetUnitX(c,v.x) call SetUnitY(c,v.y) call SetUnitZ(c,v.z) set c = null endmethod method updateUnitVector takes unit u returns nothing set this.x = GetUnitX(u) set this.y = GetUnitY(u) set this.z = GetUnitZ(u) set u = null endmethod static method getUnitVector takes unit u returns vector local vector v = vector.allocate() set v.x = GetUnitX(u) set v.y = GetUnitY(u) set v.z = GetUnitZ(u) set u = null return v endmethod method getLength takes nothing returns real return SquareRoot(.x*.x + .y*.y + .z*.z) endmethod static method sum takes vector augend, vector addend returns vector local vector v = vector.allocate() set v.x = augend.x+addend.x set v.y = augend.y+addend.y set v.z = augend.z+addend.z return v endmethod method add takes vector addend returns nothing set this.x=this.x+addend.x set this.y=this.y+addend.y set this.z=this.z+addend.z endmethod static method difference takes vector minuend, vector subtrahend returns vector local vector v = vector.allocate() set v.x = minuend.xsubtrahend.x set v.y = minuend.ysubtrahend.y set v.z = minuend.zsubtrahend.z return v endmethod method subtract takes vector subtrahend returns nothing set this.x=this.xsubtrahend.x set this.y=this.ysubtrahend.y set this.z=this.zsubtrahend.z endmethod method scale takes real factor returns nothing set this.x=this.x*factor set this.y=this.y*factor set this.z=this.z*factor endmethod method setLength takes real length returns nothing local real l = SquareRoot(.x*.x + .y*.y + .z*.z) if l == 0.0 then debug call BJDebugMsg("Attempted to set the length of a vector with no length!") return endif set l = length/l set this.x = this.x*l set this.y = this.y*l set this.z = this.z*l endmethod static method dotProduct takes vector a, vector b returns real return (a.x*b.x+a.y*b.y+a.z*b.z) endmethod static method crossProduct takes vector a, vector b returns vector local vector v = vector.allocate() set v.x = a.y*b.z  a.z*b.y set v.y = a.z*b.x  a.x*b.z set v.z = a.x*b.y  a.y*b.x return v endmethod static method projectionVector takes vector projected, vector direction returns vector local vector v = vector.allocate() local real l = direction.x*direction.x+direction.y*direction.y+direction.z*direction.z if l == 0.0 then call v.destroy() debug call BJDebugMsg("Attempted to project onto a vector with no length!") return null endif set l = (projected.x*direction.x+projected.y*direction.y+projected.z*direction.z) / l set v.x = direction.x*l set v.y = direction.y*l set v.z = direction.z*l return v endmethod method projectVector takes vector direction returns nothing local real l = direction.x*direction.x+direction.y*direction.y+direction.z*direction.z if l == 0.0 then debug call BJDebugMsg("Attempted to project onto a vector with no length!") return endif set l = (this.x*direction.x+this.y*direction.y+this.z*direction.z) / l set this.x = direction.x*l set this.y = direction.y*l set this.z = direction.z*l endmethod static method projectionPlane takes vector projected, vector normal returns vector local vector v = vector.allocate() local real l = normal.x*normal.x+normal.y*normal.y+normal.z*normal.z if l == 0.0 then call v.destroy() debug call BJDebugMsg("Attempted to project onto an undefined plane!") return null endif set l = (projected.x*normal.x+projected.y*normal.y+projected.z*normal.z) / l set v.x = projected.x  normal.x*l set v.y = projected.y  normal.y*l set v.z = projected.z  normal.z*l return v endmethod method projectPlane takes vector normal returns nothing local real l = normal.x*normal.x+normal.y*normal.y+normal.z*normal.z if l == 0.0 then debug call BJDebugMsg("Attempted to project onto an undefined plane!") return endif set l = (this.x*normal.x+this.y*normal.y+this.z*normal.z) / l set this.x = this.x  normal.x*l set this.y = this.y  normal.y*l set this.z = this.z  normal.z*l endmethod static method getAngle takes vector a, vector b returns real local real l = SquareRoot(a.x*a.x + a.y*a.y + a.z*a.z)*SquareRoot(b.x*b.x + b.y*b.y + b.z*b.z) if l == 0 then debug call BJDebugMsg("Attempted to get angle between vectors with no length!") return 0.0 endif return Acos((a.x*b.x+a.y*b.y+a.z*b.z)/l) //angle is returned in radians endmethod method rotate takes vector axis, real angle returns nothing //angle is taken in radians local real xx local real xy local real xz local real yx local real yy local real yz local real zx local real zy local real zz local real al = axis.x*axis.x+axis.y*axis.y+axis.z*axis.z //axis length^2 local real f local real c = Cos(angle) local real s = Sin(angle) if al == 0.0 then debug call BJDebugMsg("Attempted to project onto a vector with no length!") return endif set f = (this.x*axis.x+this.y*axis.y+this.z*axis.z) / al set zx = axis.x*f set zy = axis.y*f set zz = axis.z*f //axis component of rotated vector set xx = this.xzx set xy = this.yzy set xz = this.zzz //component of vector perpendicular to axis set al = SquareRoot(al) set yx = (axis.y*xz  axis.z*xy)/al set yy = (axis.z*xx  axis.x*xz)/al //y same length as x by using cross product and dividing with axis length set yz = (axis.x*xy  axis.y*xx)/al //x,y  coordinate system in which we rotate set this.x=xx*c+yx*s+zx set this.y=xy*c+yy*s+zy set this.z=xz*c+yz*s+zz endmethod static method createTerrainPoint takes real x, real y returns vector local vector v = vector.allocate() call MoveLocation(loc,x,y) set v.x=x set v.y=y set v.z=GetLocationZ(loc) return v endmethod method getTerrainPoint takes real x, real y returns nothing call MoveLocation(loc,x,y) set this.x=x set this.y=y set this.z=GetLocationZ(loc) endmethod static method createTerrainNormal takes real x, real y, real sampleRadius returns vector local vector v = vector.allocate() local real z1 local real z2 local real z3 local real z4 call MoveLocation(loc, xsampleRadius, y) set z1=GetLocationZ(loc) call MoveLocation(loc, x+sampleRadius, y) set z2=GetLocationZ(loc) call MoveLocation(loc, x, ysampleRadius) set z3=GetLocationZ(loc) call MoveLocation(loc, x, y+sampleRadius) set z4=GetLocationZ(loc) set sampleRadius=2*sampleRadius set v.x = (z1z2)*sampleRadius set v.y = (z3z4)*sampleRadius set v.z = sampleRadius*sampleRadius return v endmethod method getTerrainNormal takes real x, real y, real sampleRadius returns nothing local real z1 local real z2 local real z3 local real z4 call MoveLocation(loc, xsampleRadius, y) set z1=GetLocationZ(loc) call MoveLocation(loc, x+sampleRadius, y) set z2=GetLocationZ(loc) call MoveLocation(loc, x, ysampleRadius) set z3=GetLocationZ(loc) call MoveLocation(loc, x, y+sampleRadius) set z4=GetLocationZ(loc) set sampleRadius=2*sampleRadius set this.x = (z1z2)*sampleRadius set this.y = (z3z4)*sampleRadius set this.z = sampleRadius*sampleRadius endmethod method isInCylinder takes vector cylinderOrigin, vector cylinderHeight, real cylinderRadius returns boolean local real l local real x = this.xcylinderOrigin.x local real y = this.ycylinderOrigin.y local real z = this.zcylinderOrigin.z if x*cylinderHeight.x+y*cylinderHeight.y+z*cylinderHeight.z < 0.0 then //point below cylinder return false endif set x = xcylinderHeight.x set y = ycylinderHeight.y set z = zcylinderHeight.z if x*cylinderHeight.x+y*cylinderHeight.y+z*cylinderHeight.z > 0.0 then //point above cylinder return false endif set l = cylinderHeight.x*cylinderHeight.x+cylinderHeight.y*cylinderHeight.y+cylinderHeight.z*cylinderHeight.z if l == 0.0 then debug call BJDebugMsg("Cylinder with no height!") return false endif set l = (x*cylinderHeight.x+y*cylinderHeight.y+z*cylinderHeight.z) / l set x = x  cylinderHeight.x*l set y = y  cylinderHeight.y*l set z = z  cylinderHeight.z*l if x*x+y*y+z*z > cylinderRadius*cylinderRadius then //point outside cylinder return false endif return true endmethod method isInCone takes vector coneOrigin, vector coneHeight, real coneRadius returns boolean local real l local real x = this.xconeOrigin.x local real y = this.yconeOrigin.y local real z = this.zconeOrigin.z if x*coneHeight.x+y*coneHeight.y+z*coneHeight.z < 0.0 then //point below cone return false endif set l = coneHeight.x*coneHeight.x+coneHeight.y*coneHeight.y+coneHeight.z*coneHeight.z if l == 0.0 then debug call BJDebugMsg("cone with no height!") return false endif set l = (x*coneHeight.x+y*coneHeight.y+z*coneHeight.z) / l set x = x  coneHeight.x*l set y = y  coneHeight.y*l set z = z  coneHeight.z*l if SquareRoot(x*x+y*y+z*z) > coneRadius*(1.0l) then //point outside cone return false endif return true endmethod method isInSphere takes vector sphereOrigin, real sphereRadius returns boolean if sphereRadius*sphereRadius < ((this.xsphereOrigin.x)*(this.xsphereOrigin.x)+(this.ysphereOrigin.y)*(this.ysphereOrigin.y)+(this.zsphereOrigin.z)*(this.zsphereOrigin.z)) then return false endif return true endmethod endstruct endlibrary the new functions are:
and a very very big thanks to Antiarf for such work! I don't know, wether I'm allowed to do this, if u dislike this, u may tell me and i delete at the moment :) ! Greez Last edited by Seshiro : 08252008 at 09:42 PM. 
08252008, 11:30 PM  #35 
Procrastination Incarnate
Development Director

Those extra methods you have there don't really fit in my opinion since doing stuff with actual units is outside the scope of this system, that's something you should build on top of the system not in it, also your GetFloorHeight function is obsolete, you also do some odd things in other functions as well, it's all rather unoptimised for a lowlevel system and we don't want to encourage people to code like that.
__________________So I'm not adding those functions and methods to my first post, but thanks for the suggestions anyway. 
03242009, 11:09 AM  #36 
In Flames
Join Date: Jan 2006
Posts: 1,154

<nitpicking
__________________ JASS: static constant method dotProduct takes vector a, vector b returns real return (a.x*b.x+a.y*b.y+a.z*b.z) endmethod Last edited by akolyt0r : 03242009 at 11:09 AM. 
11242009, 08:23 PM  #37 
User
Join Date: Jul 2006
Posts: 57

I have a request for an operation which I use quite often:
JASS: method addScaled takes vector addend, real scale returns nothing set this.x=this.x+addend.x*scale set this.y=this.y+addend.y*scale set this.z=this.z+addend.z*scale endmethod Its nice to have a function like this if you use vectors for movement as you always need nomething like this: JASS: call position.addScaled(velocity, TimedLoop_PERIOD) It would be nice if you could add this ;) 
04122010, 08:09 AM  #38 
User
Join Date: Mar 2009
Posts: 1,079

Why don't you have GetXyDistance and GetXyzDistance in the vector library? I think that is important.
__________________Can you please add it or tell me how I can do it? 
04122010, 10:20 AM  #39 
Perfectionist noob
Join Date: Mar 2009
Posts: 255

GetXyzDistance could be done by subtracting one of the vectors from the other, and getting the length of the resulting vector. GetXyDistance would be done the same way, but you would have to make sure the two vectors have the same zcomponent first.
__________________Last edited by 0zyx0 : 04122010 at 10:24 AM. 
04122010, 10:28 AM  #40 
User
Join Date: Mar 2009
Posts: 1,079

I still don't get it.
__________________Can you post code that returns the distance as a real? 
04122010, 11:51 AM  #41 
Procrastination Incarnate
Development Director

JASS: function Distance takes vector a, vector b, boolean z returns real local vector d = vector.difference(b,a) local real r if not z then set d.z = 0.0 endif set r = d.getLength() call d.destroy() return r endfunction Or a more efficient version: JASS: function Distance takes vector a, vector b, boolean z returns real if z then return SquareRoot(Pow(b.xa.x,2)+Pow(b.ya.y,2)+Pow(b.za.z,2)) else return SquareRoot(Pow(b.xa.x,2)+Pow(b.ya.y,2)) endif endfunction Last edited by Anitarf : 04122010 at 11:54 AM. 
04122010, 12:52 PM  #42 
User
Join Date: Mar 2009
Posts: 1,079

Thanks, can you please add that into the library?
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07102011, 06:38 PM  #43 
User
Join Date: May 2011
Posts: 85

May I suggest that you include normalizing? Unit vectors can be quite useful.
Zinc: method normalize() { real length = this.getLength(); this.x /= length; this.y /= length; this.z /= length; } Last edited by BBQ : 07102011 at 06:43 PM. 
07122011, 08:32 AM  #44  
Procrastination Incarnate
Development Director

Quote:


07122011, 11:19 AM  #45 
User

Is there a way to rotate a vector considering the Z value
with the rotation? I suspect not in this library, based on that it's only rotating the X and Y. I wonder what kind of complexity we'd deal with if we had to factor in all three dimensions into the equations. I'm also unsure of what the purpose of "terrainNormal" is. It takes four corners into consideration but what if the center is a bit indented/raised offset from the rest? Last edited by Bribe : 07122011 at 11:20 AM. 
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