can U move collison shapes?

[[DooD]Heavyair]

i have been trying to make a moving SAM SITE based on vercetti 1010s SAM SITE script

so far i have tried to attach a collision sphere to an object and then move the object but this doesnt move the collision sphere

i have also tried moving the collision sphere itself with moveObject but that didnt work either

setElementPosition will move it but i need the collision to stay active while it moves and setElementPosition just takes it from one place and puts it in another but its not active while its moving

ace_gambit said he has moved on to using math to calculate line of sight for his sam site but i dont even know how to start doing that so i need to get this working

i can post the scripts i have tried but i dont think they are much help

any ideas / advice really appreciated

[[DooD]Heavyair]

i have been trying to make a moving SAM SITE based on vercetti 1010s SAM SITE script

so far i have tried to attach a collision sphere to an object and then move the object but this doesnt move the collision sphere

i have also tried moving the collision sphere itself with moveObject but that didnt work either

setElementPosition will move it but i need the collision to stay active while it moves and setElementPosition just takes it from one place and puts it in another but its not active while its moving

ace_gambit said he has moved on to using math to calculate line of sight for his sam site but i dont even know how to start doing that so i need to get this working

i can post the scripts i have tried but i dont think they are much help

any ideas / advice really appreciated

[robhol]

I'm not sure if this works the way I think, but isn't it as simple as to calculate the distance to the SAM site?

Formula for 2d distance: x = sqrt( (Xa -Xb)^2 + (Ya-Yb)^2 )

Will return the distance in map units. This is only a description, you need to Lua-ize it yourself

[robhol]

I'm not sure if this works the way I think, but isn't it as simple as to calculate the distance to the SAM site?

Formula for 2d distance: x = sqrt( (Xa -Xb)^2 + (Ya-Yb)^2 )

Will return the distance in map units. This is only a description, you need to Lua-ize it yourself

[[DooD]Heavyair]

thanx for the help but i have no idea about the math stuff

i kind of understand what your saying about calculating the distance but how to actually use it i have no idea at all

i have looked at the way math is used in other script ( interstae 69 for the minigun and stuff ) but it just confuses me completely

which is why im trying to use the collision sphere

i think i might just have to live with stationery sam sites and come up with another way of doing this

thanx again

[[DooD]Heavyair]

thanx for the help but i have no idea about the math stuff

i kind of understand what your saying about calculating the distance but how to actually use it i have no idea at all

i have looked at the way math is used in other script ( interstae 69 for the minigun and stuff ) but it just confuses me completely

which is why im trying to use the collision sphere

i think i might just have to live with stationery sam sites and come up with another way of doing this

thanx again

[Ace_Gambit]

I am not a big fan of maths either. In fact I really suck at it but I have some basic understanding of angles and came up with this.

  
function testTargetAngleAgainstLoS(source, target, traceAngle, minDepth, maxDepth, minOffsetZ, maxOffsetZ) 
  local oX, oY, oZ = getElementPosition(source) 
  local rotX, rotY, rotZ = getObjectRotation(source) 
  local tX, tY, tZ = getElementPosition(target) 
  local targetDist2D = getDistanceBetweenPoints2D(oX, oY, tX, tY) 
  local losX, losY, losZ = oX, oY, oZ 
  local btX, btY, btZ = oX, oY, oZ 
  local btDist2D = 0 
  local pX2D, pY2D = 0, 0 
  local pDist2D = 0 
  local ptotDist2D = 0 
  local angle = 0 
  if (targetDist2D < minDepth or targetDist2D > maxDepth or tZ < (oZ - minOffsetZ) or tZ > (oZ + maxOffsetZ)) then 
    return 
  end 
  losX = losX - math.sin(math.rad(rotZ)) * targetDist2D 
  losY = losY + math.cos(math.rad(rotZ)) * targetDist2D 
  btX = btX - math.sin(math.rad(rotZ + 180)) * targetDist2D 
  btY = btY + math.cos(math.rad(rotZ + 180)) * targetDist2D 
  btDist2D = getDistanceBetweenPoints2D(btX, btY, tX, tY) 
  if (tX > losX) then 
    pX2D = tX - (math.abs(tX - losX) / 2) 
  else 
    pX2D = losX - (math.abs(losX - tX) / 2) 
  end 
  if (tY > losY) then 
    pY2D = tY - (math.abs(tY - losY) / 2) 
  else 
    pY2D = losY - (math.abs(losY - tY) / 2) 
  end 
  pDist2D = getDistanceBetweenPoints2D(oX, oY, pX2D, pY2D) 
  ptotDist2D = getDistanceBetweenPoints2D(pX2D, pY2D, tX, tY) 
  angle = math.deg(math.tan(ptotDist2D / pDist2D)) * 2 
  return (angle > 0 and angle < traceAngle and targetDist2D < btDist2D) 
end 
  

What it does is return true if a target is within the field of sight (angle between line of sight and target vector).

[Ace_Gambit]

I am not a big fan of maths either. In fact I really suck at it but I have some basic understanding of angles and came up with this.

 function testTargetAngleAgainstLoS(source, target, traceAngle, minDepth, maxDepth, minOffsetZ, maxOffsetZ)  local oX, oY, oZ = getElementPosition(source)  local rotX, rotY, rotZ = getObjectRotation(source)  local tX, tY, tZ = getElementPosition(target)  local targetDist2D = getDistanceBetweenPoints2D(oX, oY, tX, tY)  local losX, losY, losZ = oX, oY, oZ  local btX, btY, btZ = oX, oY, oZ  local btDist2D = 0  local pX2D, pY2D = 0, 0  local pDist2D = 0  local ptotDist2D = 0  local angle = 0  if (targetDist2D < minDepth or targetDist2D > maxDepth or tZ < (oZ - minOffsetZ) or tZ > (oZ + maxOffsetZ)) then    return  end  losX = losX - math.sin(math.rad(rotZ)) * targetDist2D  losY = losY + math.cos(math.rad(rotZ)) * targetDist2D  btX = btX - math.sin(math.rad(rotZ + 180)) * targetDist2D  btY = btY + math.cos(math.rad(rotZ + 180)) * targetDist2D  btDist2D = getDistanceBetweenPoints2D(btX, btY, tX, tY)  if (tX > losX) then    pX2D = tX - (math.abs(tX - losX) / 2)  else    pX2D = losX - (math.abs(losX - tX) / 2)  end  if (tY > losY) then    pY2D = tY - (math.abs(tY - losY) / 2)  else    pY2D = losY - (math.abs(losY - tY) / 2)  end  pDist2D = getDistanceBetweenPoints2D(oX, oY, pX2D, pY2D)  ptotDist2D = getDistanceBetweenPoints2D(pX2D, pY2D, tX, tY)  angle = math.deg(math.tan(ptotDist2D / pDist2D)) * 2  return (angle > 0 and angle < traceAngle and targetDist2D < btDist2D)end 

What it does is return true if a target is within the field of sight (angle between line of sight and target vector).

[[DooD]Heavyair]

AWESOME

it seems that im missing a lot of commands ( like that getDistanceBetweenTwoPoints thing

are all the commands listed anywhere or are they all on the wiki and im just being dumb

i think a lot of my problems are not knowing how to tell the script what i want it to do

can someone tell me where i can find them all

THANX AGAIN robhol and ace_gambit

i have had a quick look at your script ace_gambit and id like to see if im getting the idea

should i add an event handler that will fire when your testtargetangleagainstLOS returns true

not sure if i worded that right

what i mean is if something flys into the line of sight your function will return true and then i should have an event handler that fires a missle / bomb when your function returns true

hope that makes some sense

[[DooD]Heavyair]

AWESOME

it seems that im missing a lot of commands ( like that getDistanceBetweenTwoPoints thing

are all the commands listed anywhere or are they all on the wiki and im just being dumb

i think a lot of my problems are not knowing how to tell the script what i want it to do

can someone tell me where i can find them all

THANX AGAIN robhol and ace_gambit

i have had a quick look at your script ace_gambit and id like to see if im getting the idea

should i add an event handler that will fire when your testtargetangleagainstLOS returns true

not sure if i worded that right

what i mean is if something flys into the line of sight your function will return true and then i should have an event handler that fires a missle / bomb when your function returns true

hope that makes some sense

[Ace_Gambit]

You could try something like this:

  
oSAM = getElementByID("bla bla") --  SAM site object 
previousTick = getTickCount() 
  
function callbackClientRender() 
  if (testTargetAngleAgainstLoS(oSAM, getLocalPlayer(), 35, 15, 100, 5, 200) and getTickCount() > (previousTick + 1500)) then 
    previousTick = getTickCount() 
    outputChatBox("Uh-oh") 
    -- fire rocket 
  end 
end 
  
addEventHandler("onClientRender", getRootElement(), callbackClientRender) 
  

[Ace_Gambit]

You could try something like this:

 oSAM = getElementByID("bla bla") --  SAM site objectpreviousTick = getTickCount() function callbackClientRender()  if (testTargetAngleAgainstLoS(oSAM, getLocalPlayer(), 35, 15, 100, 5, 200) and getTickCount() > (previousTick + 1500)) then    previousTick = getTickCount()    outputChatBox("Uh-oh")    -- fire rocket  endend addEventHandler("onClientRender", getRootElement(), callbackClientRender) 

[[DooD]Heavyair]

i think im beginning to understand this now

i will see what i can do and post any decent results

THANX ACE_GAMBIT

with the

oSAM = getElementByID("bla bla") --  SAM site object 

line

do i just put the objectID of what im using for the sam site

i assume that it would then run the line of sight check on all my sam sites

well ill give it a go and see what happens

sorry takin up so much of your time ace_gambit but now im really confused

i cant seem to figure out how to use this in a script

with the

oSAM = getElementByID("bla bla") --  SAM site object 

line i looked at the wiki and it says getElementByID will look for the objectID stated in the .map file but when i have created objects with the .map file before i messed up the objectID part

<object model="4866" posX="-542.96350097656" posY="886.63665771484" posZ="2.7947807312012" rotX="0.5" rotY="0.5" rotZ="75"/> 
  

this is how i put in objects

and this is how i do vehicles

<vehicle id="BladeBackShed" model="536" posX="-676.43225097656" posY="962.98449707031" posZ="12.507791519165" rotX="0.041015625" rotY="0.002777099609375" rotZ="92.063659667969" upgrades="1010 1087 1104 1103 1107 1108 1181 1183" paintjob="1" plate="PIMPED"/> 
  

but from what i can see in the wiki i need to give the objects an ID like samsite1 or something but when ive tried to do this in the past the map file wont load

| |

<objectID="samsite1" object model="4866" posX="-542.96350097656" posY="886.63665771484" posZ="2.7947807312012" rotX="0.5" rotY="0.5" rotZ="75"/> 

so im not sure how to tell the function what it should calculate the line of sight for

again i hope that makes sense

edit ; suddenly feel stupid

looking at second script i think if i set oSAM to createObject( sam site stuff ) it should set where the source is and then set target as getLocalPlayer will give me the target

going to try it now back soon

thank u very very much for your PATIENCE AND HELP u r great

EDIT 2 : still no joy

i think im going to look for some lua tutorials and see if i can expand my knowledge a bit because is beyond me at the moment but I'LL BE BACK

[[DooD]Heavyair]

i think im beginning to understand this now

i will see what i can do and post any decent results

THANX ACE_GAMBIT

with the

oSAM = getElementByID("bla bla") --  SAM site object

line

do i just put the objectID of what im using for the sam site

i assume that it would then run the line of sight check on all my sam sites

well ill give it a go and see what happens

sorry takin up so much of your time ace_gambit but now im really confused

i cant seem to figure out how to use this in a script

with the

oSAM = getElementByID("bla bla") --  SAM site object

line i looked at the wiki and it says getElementByID will look for the objectID stated in the .map file but when i have created objects with the .map file before i messed up the objectID part

this is how i put in objects

and this is how i do vehicles

but from what i can see in the wiki i need to give the objects an ID like samsite1 or something but when ive tried to do this in the past the map file wont load

| |

so im not sure how to tell the function what it should calculate the line of sight for

again i hope that makes sense

edit ; suddenly feel stupid

looking at second script i think if i set oSAM to createObject( sam site stuff ) it should set where the source is and then set target as getLocalPlayer will give me the target

going to try it now back soon

thank u very very much for your PATIENCE AND HELP u r great

EDIT 2 : still no joy

i think im going to look for some lua tutorials and see if i can expand my knowledge a bit because is beyond me at the moment but I'LL BE BACK

[Ace_Gambit]

You got the syntax wrong. ID is a separate parameter and should be defined as follows:

  
"samsite1" object model="4866" posX="-542.96350097656" posY="886.63665771484" posZ="2.7947807312012" rotX="0.5" rotY="0.5" rotZ="75"/> 
  

Notice the id instead of objectID. This should work.

This is also correct:

  
oSAM = createObject(3884, x, y, z) --  SAM site object 
  

Edit:

You can use the testTargetAngleAgainstLoS as a 2D look at function as well. Just add angle as return value to get the rotation needed to make an object face a particular target.

[Ace_Gambit]

You got the syntax wrong. ID is a separate parameter and should be defined as follows:

  
"samsite1" object model="4866" posX="-542.96350097656" posY="886.63665771484" posZ="2.7947807312012" rotX="0.5" rotY="0.5" rotZ="75"/> 
  

Notice the id instead of objectID. This should work.

This is also correct:

  
oSAM = createObject(3884, x, y, z) --  SAM site object 
  

Edit:

You can use the testTargetAngleAgainstLoS as a 2D look at function as well. Just add angle as return value to get the rotation needed to make an object face a particular target.

[[DooD]Heavyair]

ive gotta learn all this syntax stuff

that objectID in map file has messed up quite a few things ive been trying to do

thanx so much ace_gambit

EDIT : with the map file entry i found u only need one "object"

<object id="lossamsite" model="3885" posX="-711" posY="957" posZ="30" rotX="0" rotY="0" rotZ="0"/> 
  

map is workin now just gotta get the rest now

just dont seem to be able to make sense of this for some reason

i know what i want it to do but i just cant figure it out

i have looked at a few lua tutorials and they make perfect sense but they dont tell me what i need

i understand how the function works ( just about ) but i just cant figure out how to implement it

i thought if i told the function what the sam site is

oSAM = getElementByID("lossam") --  SAM site object 

i put object id "lossam" in the map file so it gets any samsites ive made in the map file

but i dont understand how to make the ( testTargetAngleAgainstLoS ) function attach to the sam sites so it knows where to look for the target and then trigger the firing event

i thought that the getElementByID would make the function work for all sam sites made with the map file but when i fly around the sam site i dont get the Uh-Oh message

sorry about taking up so much of your time ace_gambit as i dont seem to be getting very far with this scripting stuff

i really dont know what else to try to get a better understanding of how lua works because just looking at the scripts and stuff seems to make me even more confused

i think i understand most of the functions but just dont know how to tie them all together

im going to try the wiki again and see if theres any better tutorials out there

EDIT ::: EDIT :::

ace_gambit i have tried running the script u put above

oSAM = getElementByID("lossamsite") --  SAM site object 
previousTick = getTickCount() 
   
function testTargetAngleAgainstLoS(source, target, traceAngle, minDepth, maxDepth, minOffsetZ, maxOffsetZ) 
  local oX, oY, oZ = getElementPosition(source) 
  local rotX, rotY, rotZ = getObjectRotation(source) 
  local tX, tY, tZ = getElementPosition(target) 
  local targetDist2D = getDistanceBetweenPoints2D(oX, oY, tX, tY) 
  local losX, losY, losZ = oX, oY, oZ 
  local btX, btY, btZ = oX, oY, oZ 
  local btDist2D = 0 
  local pX2D, pY2D = 0, 0 
  local pDist2D = 0 
  local ptotDist2D = 0 
  local angle = 0 
  if (targetDist2D < minDepth or targetDist2D > maxDepth or tZ < (oZ - minOffsetZ) or tZ > (oZ + maxOffsetZ)) then 
    return 
  end 
  losX = losX - math.sin(math.rad(rotZ)) * targetDist2D 
  losY = losY + math.cos(math.rad(rotZ)) * targetDist2D 
  btX = btX - math.sin(math.rad(rotZ + 180)) * targetDist2D 
  btY = btY + math.cos(math.rad(rotZ + 180)) * targetDist2D 
  btDist2D = getDistanceBetweenPoints2D(btX, btY, tX, tY) 
  if (tX > losX) then 
    pX2D = tX - (math.abs(tX - losX) / 2) 
  else 
    pX2D = losX - (math.abs(losX - tX) / 2) 
  end 
  if (tY > losY) then 
    pY2D = tY - (math.abs(tY - losY) / 2) 
  else 
    pY2D = losY - (math.abs(losY - tY) / 2) 
  end 
  pDist2D = getDistanceBetweenPoints2D(oX, oY, pX2D, pY2D) 
  ptotDist2D = getDistanceBetweenPoints2D(pX2D, pY2D, tX, tY) 
  angle = math.deg(math.tan(ptotDist2D / pDist2D)) * 2 
  return (angle > 0 and angle < traceAngle and targetDist2D < btDist2D) 
end 
  
function callbackClientRender() 
  if (testTargetAngleAgainstLoS(oSAM, getLocalPlayer(), 35, 15, 100, 5, 200) and getTickCount() > (previousTick + 1500)) then 
    previousTick = getTickCount() 
    outputChatBox("Uh-oh") 
  end 
end 
  
addEventHandler("onClientRender", getRootElement(), callbackClientRender) 
  

i thought it would give me the Uh oH message when i went around the lossamite object

oSAM = getElementByID("lossamsite") --  SAM site object 

but nothing

im really sorry but i have been looking at assorted tutorials and the wiki but i just dont get it

do u have any idea if i will be able to move the collision shapes when DP3 is done

thanx for all your help but i think i will just have to keep things simple for a while longer yet

[[DooD]Heavyair]

ive gotta learn all this syntax stuff

that objectID in map file has messed up quite a few things ive been trying to do

thanx so much ace_gambit

EDIT : with the map file entry i found u only need one "object"

map is workin now just gotta get the rest now

just dont seem to be able to make sense of this for some reason

i know what i want it to do but i just cant figure it out

i have looked at a few lua tutorials and they make perfect sense but they dont tell me what i need

i understand how the function works ( just about ) but i just cant figure out how to implement it

i thought if i told the function what the sam site is

oSAM = getElementByID("lossam") --  SAM site object

i put object id "lossam" in the map file so it gets any samsites ive made in the map file

but i dont understand how to make the ( testTargetAngleAgainstLoS ) function attach to the sam sites so it knows where to look for the target and then trigger the firing event

i thought that the getElementByID would make the function work for all sam sites made with the map file but when i fly around the sam site i dont get the Uh-Oh message

sorry about taking up so much of your time ace_gambit as i dont seem to be getting very far with this scripting stuff

i really dont know what else to try to get a better understanding of how lua works because just looking at the scripts and stuff seems to make me even more confused

i think i understand most of the functions but just dont know how to tie them all together

im going to try the wiki again and see if theres any better tutorials out there

EDIT ::: EDIT :::

ace_gambit i have tried running the script u put above

oSAM = getElementByID("lossamsite") --  SAM site objectpreviousTick = getTickCount()  function testTargetAngleAgainstLoS(source, target, traceAngle, minDepth, maxDepth, minOffsetZ, maxOffsetZ)  local oX, oY, oZ = getElementPosition(source)  local rotX, rotY, rotZ = getObjectRotation(source)  local tX, tY, tZ = getElementPosition(target)  local targetDist2D = getDistanceBetweenPoints2D(oX, oY, tX, tY)  local losX, losY, losZ = oX, oY, oZ  local btX, btY, btZ = oX, oY, oZ  local btDist2D = 0  local pX2D, pY2D = 0, 0  local pDist2D = 0  local ptotDist2D = 0  local angle = 0  if (targetDist2D < minDepth or targetDist2D > maxDepth or tZ < (oZ - minOffsetZ) or tZ > (oZ + maxOffsetZ)) then    return  end  losX = losX - math.sin(math.rad(rotZ)) * targetDist2D  losY = losY + math.cos(math.rad(rotZ)) * targetDist2D  btX = btX - math.sin(math.rad(rotZ + 180)) * targetDist2D  btY = btY + math.cos(math.rad(rotZ + 180)) * targetDist2D  btDist2D = getDistanceBetweenPoints2D(btX, btY, tX, tY)  if (tX > losX) then    pX2D = tX - (math.abs(tX - losX) / 2)  else    pX2D = losX - (math.abs(losX - tX) / 2)  end  if (tY > losY) then    pY2D = tY - (math.abs(tY - losY) / 2)  else    pY2D = losY - (math.abs(losY - tY) / 2)  end  pDist2D = getDistanceBetweenPoints2D(oX, oY, pX2D, pY2D)  ptotDist2D = getDistanceBetweenPoints2D(pX2D, pY2D, tX, tY)  angle = math.deg(math.tan(ptotDist2D / pDist2D)) * 2  return (angle > 0 and angle < traceAngle and targetDist2D < btDist2D)end function callbackClientRender()  if (testTargetAngleAgainstLoS(oSAM, getLocalPlayer(), 35, 15, 100, 5, 200) and getTickCount() > (previousTick + 1500)) then    previousTick = getTickCount()    outputChatBox("Uh-oh")  endend addEventHandler("onClientRender", getRootElement(), callbackClientRender) 

i thought it would give me the Uh oH message when i went around the lossamite object

oSAM = getElementByID("lossamsite") --  SAM site object

but nothing

im really sorry but i have been looking at assorted tutorials and the wiki but i just dont get it

do u have any idea if i will be able to move the collision shapes when DP3 is done

thanx for all your help but i think i will just have to keep things simple for a while longer yet