FindRotation3D - Revision history

LordHenry: /* Code */

2023-03-21T14:24:33Z

Code

← Older revision		Revision as of 14:24, 21 March 2023
Line 22:		Line 22:
	local rotz = -math.deg(math.atan2(x2 - x1, y2 - y1))		local rotz = -math.deg(math.atan2(x2 - x1, y2 - y1))
	rotz = rotz < 0 and rotz + 360 or rotz		rotz = rotz < 0 and rotz + 360 or rotz
	return rotx, 0,rotz		return rotx, 0, rotz
	end		end
	</syntaxhighlight>		</syntaxhighlight>

LordHenry: /* Code */

2023-03-21T14:24:11Z

Code

← Older revision		Revision as of 14:24, 21 March 2023
Line 15:		Line 15:

	==Code==		==Code==
			<section name="Shared" class="both" show="true">
	<syntaxhighlight lang="lua">		<syntaxhighlight lang="lua">
	function findRotation3D( x1, y1, z1, x2, y2, z2 )		function findRotation3D(x1, y1, z1, x2, y2, z2)
	local rotx = math.atan2 ( z2 - z1, getDistanceBetweenPoints2D ( x2,y2, x1,y1 ) )		local rotx = math.atan2 (z2 - z1, getDistanceBetweenPoints2D (x2, y2, x1, y1))
	rotx = math.deg(rotx)		rotx = math.deg(rotx)
	local rotz = -math.deg( math.atan2( x2 - x1, y2 - y1 ) )		local rotz = -math.deg(math.atan2(x2 - x1, y2 - y1))
	rotz = rotz < 0 and rotz + 360 or rotz		rotz = rotz < 0 and rotz + 360 or rotz
	return rotx, 0,rotz		return rotx, 0,rotz
	end		end
	</syntaxhighlight>		</syntaxhighlight>
			</section>

	==Examples==		==Examples==

LordHenry: /* Example */

2023-03-21T14:20:46Z

Example

← Older revision		Revision as of 14:20, 21 March 2023
Line 25:		Line 25:
	</syntaxhighlight>		</syntaxhighlight>

	==~~Example~~==		==Examples==
			<section name="Client-side" class="client" show="true">
	This command makes the player's vehicle to rotate at vehicle near it.		This command makes the player's vehicle to rotate at vehicle near it.
	''Note: This example needs [[OOP]] to be enabled in order to work''		''Note: This example needs [[OOP]] to be enabled in order to work''
	~~<section name="Client-side example" class="client" show="true">~~
	<syntaxhighlight lang="lua">		<syntaxhighlight lang="lua">
	local function setRotationAtNearestVehicle()		local function setRotationAtNearestVehicle()
Line 56:		Line 56:

	Thanks for '''ccw''' for alternative [[getCameraRotation]] function which formula is used in this function. Also thanks for '''Doomed_Space_Marine''' for more accurate formula for z-axis which is used in [[findRotation]]		Thanks for '''ccw''' for alternative [[getCameraRotation]] function which formula is used in this function. Also thanks for '''Doomed_Space_Marine''' for more accurate formula for z-axis which is used in [[findRotation]]

			<section name="Client-side" class="client" show="true">
			This example creates an object on Grove Street that keeps looking at the player.
			<syntaxhighlight lang="lua">
			local obj = createObject (2887, 2492, -1667, 16)

			addEventHandler("onClientRender", root, function()
			local x, y, z = getElementPosition(localPlayer)
			local xx, yy, zz = getElementPosition(obj)
			local rx, ry, rz = findRotation3D(xx, yy, zz, x, y, z)
			setElementRotation(obj, rx, ry, rz)
			end)
			</syntaxhighlight>
			Example author: [[User:LordHenry\|LordHenry]]
			</section>

	==See Also==		==See Also==
	{{Useful_Functions}}		{{Useful_Functions}}

LordHenry at 14:03, 21 March 2023

2023-03-21T14:03:28Z

← Older revision		Revision as of 14:03, 21 March 2023
Line 2:		Line 2:
	<lowercasetitle></lowercasetitle>		<lowercasetitle></lowercasetitle>
	__NOTOC__		__NOTOC__
	This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can for example be used to make objects ~~point~~ at specified point		This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can for example be used to make objects "look at" specified point.
	==Syntax==		==Syntax==
	<syntaxhighlight lang="lua">float float float findRotation3D( float x1, float y1, float z1, float x2, float y2, float z2 )</syntaxhighlight>		<syntaxhighlight lang="lua">float float float findRotation3D( float x1, float y1, float z1, float x2, float y2, float z2 )</syntaxhighlight>

Cristiano Cardoso: Fix typo

2017-07-19T23:56:57Z

Fix typo

← Older revision		Revision as of 23:56, 19 July 2017
Line 12:		Line 12:
	* '''x2''': The X coordinate of the target point.		* '''x2''': The X coordinate of the target point.
	* '''y2''': The Y coordinate of the target point.		* '''y2''': The Y coordinate of the target point.
	* '''z2''': The Z coordinate of the ~~starting~~ point.		* '''z2''': The Z coordinate of the target point.

	==Code==		==Code==

Jirppa: Created page with "{{Useful Function}} NOTOC This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can..."

2017-07-16T12:12:57Z

Created page with "{{Useful Function}} <lowercasetitle></lowercasetitle> __NOTOC__ This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can..."

New page

{{Useful Function}}
<lowercasetitle></lowercasetitle>
__NOTOC__
This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can for example be used to make objects point at specified point
==Syntax==
<syntaxhighlight lang="lua">float float float findRotation3D( float x1, float y1, float z1, float x2, float y2, float z2 )</syntaxhighlight>

===Required Arguments===
* '''x1''': The X coordinate of the starting point.
* '''y1''': The Y coordinate of the starting point.
* '''z1''': The Z coordinate of the starting point.
* '''x2''': The X coordinate of the target point.
* '''y2''': The Y coordinate of the target point.
* '''z2''': The Z coordinate of the starting point.

==Code==
<syntaxhighlight lang="lua">
function findRotation3D( x1, y1, z1, x2, y2, z2 )
local rotx = math.atan2 ( z2 - z1, getDistanceBetweenPoints2D ( x2,y2, x1,y1 ) )
rotx = math.deg(rotx)
local rotz = -math.deg( math.atan2( x2 - x1, y2 - y1 ) )
rotz = rotz < 0 and rotz + 360 or rotz
return rotx, 0,rotz
end
</syntaxhighlight>

==Example==
This command makes the player's vehicle to rotate at vehicle near it.
''Note: This example needs [[OOP]] to be enabled in order to work''
<section name="Client-side example" class="client" show="true">
<syntaxhighlight lang="lua">
local function setRotationAtNearestVehicle()

if not localPlayer.vehicle then return end

local nearestVehicle = false
local dist = 10000
for index,vehicle in ipairs(getElementsByType("vehicle",root,true)) do
if getDistanceBetweenPoints3D(localPlayer.vehicle.position,vehicle.position) < dist and localPlayer.vehicle ~= vehicle then
nearestVehicle = vehicle
dist = getDistanceBetweenPoints3D(localPlayer.vehicle.position,vehicle.position)
end
end

local x1,y1,z1 = getElementPosition(localPlayer.vehicle)
local x2,y2,z2 = getElementPosition(nearestVehicle)
local rx,ry,rz = findRotation3D(x1,y1,z1,x2,y2,z2)

localPlayer.vehicle.rotation = Vector3(rx,ry,rz)

end

addCommandHandler("lookatnearestveh",setRotationAtNearestVehicle)
</syntaxhighlight>
</section>

Thanks for '''ccw''' for alternative [[getCameraRotation]] function which formula is used in this function. Also thanks for '''Doomed_Space_Marine''' for more accurate formula for z-axis which is used in [[findRotation]]

==See Also==
{{Useful_Functions}}

FindRotation3D - Revision history

LordHenry: /* Code */

LordHenry: /* Code */

LordHenry: /* Example */

LordHenry at 14:03, 21 March 2023

Cristiano Cardoso: Fix typo

Jirppa: Created page with "{{Useful Function}} __NOTOC__ This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can..."

Jirppa: Created page with "{{Useful Function}} NOTOC This function takes two sets of XYZ coordinates. It returns the 3D direction from point A to point B. This can..."