CreateMarker: Difference between revisions

Latest revision as of 12:39, 10 October 2023

[[\|link=\|]]	Warning: When using type "arrow" markers, you may experience positioning issues. This is a known issue with how GTA creates these types of markers. It is recommended you keep the position at least 1 game unit above the ground to avoid issues.

[[\|link=\|]]	Warning: "cylinder" marker type doesn't have the same size for collisions and visible textures. Note that the marker collisions are around 10-20% bigger than the visible texture.

This image shows all the different marker types available using this function.

This function creates a marker. A marker is a 3D model in the world that can highlight a particular point or area, often used to instruct players where to go to perform actions such as entering buildings.

There are various limits that govern the maximum number of each type that can be visible at once. These are:

Coronas: 32
Checkpoints, Rings, Cylinders and Arrows combined: 32

You are able to create as many markers as you wish (memory and element limit permitting), but the player will only be able to see the nearest ones up to the limit.

Syntax

Click to collapse [-]

Server

marker createMarker ( float x, float y, float z [, string theType = "checkpoint", float size = 4.0, int r = 0, int g = 0, int b = 255, int a = 255, element visibleTo = getRootElement( ) ] )

OOP Syntax Help! I don't understand this!

Method: Marker(...)

Required Arguments

x: A floating point number representing the X coordinate on the map.
y: A floating point number representing the Y coordinate on the map.
z: A floating point number representing the Z coordinate on the map.

Optional arguments

NOTE: When using optional arguments, you might need to supply all arguments before the one you wish to use. For more information on optional arguments, see optional arguments.

theType: The visual type of the marker to be created. Possible values:
- "checkpoint": A race checkpoint. These are very tall, but not infinite, light pillars. Checkpoints snap to ground and become invisible after going over a certain Z height.
- "ring": Doughnut shaped ring, normally used for aircraft.
- "cylinder": Small glowing ground ring. These are the glow markers you walk into to activate missions or events in single player.
- "arrow": Arrow pointing down. These are the arrows on the doors you can enter in single player, except MTA's are not animated by default.
- "corona": A glowing ball of light.
size: The diameter of the marker to be created, in meters.
r: An integer number representing the amount of red to use in the colouring of the marker (0 - 255).
g: An integer number representing the amount of green to use in the colouring of the marker (0 - 255).
b: An integer number representing the amount of blue to use in the colouring of the marker (0 - 255).
a: An integer number representing the amount of alpha to use in the colouring of the marker (0 - 255 where 0 is transparent and 255 is opaque).
visibleTo: This defines which elements can see the marker. Defaults to visible to everyone. See visibility.

Click to collapse [-]

Client

marker createMarker ( float x, float y, float z [, string theType = "checkpoint", float size = 4.0, int r = 0, int g = 0, int b = 255, int a = 255 ] )

OOP Syntax Help! I don't understand this!

Method: Marker(...)

Required Arguments

x: A floating point number representing the X coordinate on the map.
y: A floating point number representing the Y coordinate on the map.
z: A floating point number representing the Z coordinate on the map.

Optional arguments

NOTE: When using optional arguments, you might need to supply all arguments before the one you wish to use. For more information on optional arguments, see optional arguments.

theType: The visual type of the marker to be created. Possible values:
- "checkpoint": A race checkpoint. These are very tall, but not infinite, light pillars. Checkpoints snap to ground and become invisible after going over a certain Z height.
- "ring": Doughnut shaped ring, normally used for aircraft.
- "cylinder": Small glowing ground ring. These are the glow markers you walk into to activate missions or events in single player.
- "arrow": Arrow pointing down. These are the arrows on the doors you can enter in single player, except MTA's are not animated by default.
- "corona": A glowing ball of light.
size: The diameter of the marker to be created, in meters.
r: An integer number representing the amount of red to use in the colouring of the marker (0 - 255).
g: An integer number representing the amount of green to use in the colouring of the marker (0 - 255).
b: An integer number representing the amount of blue to use in the colouring of the marker (0 - 255).
a: An integer number representing the amount of alpha to use in the colouring of the marker (0 - 255 where 0 is transparent and 255 is opaque).

Returns

Returns the marker element that was created, or false if the arguments are incorrect.

Example

Click to collapse [-]

Example 1

This example creates a marker next to the player when they type 'createmarker':

-- this function is called whenever someone types 'createmarker' in the chat:
function chatCreateMarker ( thePlayer, commandName )
   if ( thePlayer ) then
      local x, y, z = getElementPosition ( thePlayer ) -- get the player's position
      -- create a cylindrical marker next to the player:
      local theMarker = createMarker ( x + 2, y + 2, z, "cylinder", 1.5, 255, 255, 0, 170 )
      if isElement ( theMarker ) then -- check if the marker was created successfully
         outputChatBox ( "Marker created successfully", thePlayer, 0, 255, 0 )
      else
         outputChatBox ( "Failed to create marker", thePlayer, 255, 0, 0 )
      end
   end
end
addCommandHandler ( "createmarker", chatCreateMarker )

@@ Line 1: / Line 1: @@
 __NOTOC__
-This function creates a marker and returns a handle to the created marker. If it fails, it will return false.
+{{Server client function}}
+{{Warning|When using type "arrow" markers, you may experience positioning issues. This is a known issue with how GTA creates these types of markers. It is recommended you keep the position at least 1 game unit above the ground to avoid issues.}}
+{{Warning|"cylinder" marker type doesn't have the same size for collisions and visible textures. Note that the marker collisions are around 10-20% bigger than the visible texture.}}
-A marker is a 3D model in the world that can highlight a particular point or area, often used to instruct players where to go to perform actions such as entering buildings.
+[[Image:Mtasa_markers.png|thumb|337px|This image shows all the different marker types available using this function.]]
-See also [[createCheckpoint]].
+This function creates a marker. A marker is a 3D model in the world that can highlight a particular point or area, often used to instruct players where to go to perform actions such as entering buildings.
+There are various limits that govern the maximum number of each type that can be visible at once. These are:
+* Coronas: 32
+* Checkpoints, Rings, Cylinders and Arrows combined: 32
+You are able to create as many markers as you wish (memory and element limit permitting), but the player will only be able to see the nearest ones up to the limit.
+<br><br><br><br>
 ==Syntax==
+<section name="Server" class="server" show="true">
 <syntaxhighlight lang="lua">
-marker createMarker ( float x, float y, float z, [string type, int size, int r, int g, int b, int a] )
+marker createMarker ( float x, float y, float z [, string theType = "checkpoint", float size = 4.0, int r = 0, int g = 0, int b = 255, int a = 255, element visibleTo = getRootElement( ) ] )
 </syntaxhighlight>
+{{OOP||Marker}}
+===Required Arguments===
+* '''x''': A floating point number representing the X coordinate on the map.
+* '''y''': A floating point number representing the Y coordinate on the map.
+* '''z''': A floating point number representing the Z coordinate on the map.
+===Optional arguments===
+{{OptionalArg}}
+* '''theType''': The visual type of the marker to be created. Possible values:
+{{Marker_types}}
+* '''size''': The diameter of the marker to be created, in meters.
+* '''r''': An integer number representing the amount of red to use in the colouring of the marker (0 - 255).
+* '''g''': An integer number representing the amount of green to use in the colouring of the marker (0 - 255).
+* '''b''': An integer number representing the amount of blue to use in the colouring of the marker (0 - 255).
+* '''a''': An integer number representing the amount of alpha to use in the colouring of the marker (0 - 255 where 0 is transparent and 255 is opaque).
+* '''visibleTo''': This defines which elements can see the marker. Defaults to visible to everyone. See [[visibility]].
+</section>
+<section name="Client" class="client" show="true">
+<syntaxhighlight lang="lua">
+marker createMarker ( float x, float y, float z [, string theType = "checkpoint", float size = 4.0, int r = 0, int g = 0, int b = 255, int a = 255 ] )
+</syntaxhighlight>
+{{OOP||Marker}}
 ===Required Arguments===
 * '''x''': A floating point number representing the X coordinate on the map.
 * '''y''': A floating point number representing the Y coordinate on the map.
 * '''z''': A floating point number representing the Z coordinate on the map.
-* '''type''': The visual type of the marker to be created. Possible values:
-** '''"checkpoint"''': Checkpoint (Note: Currently z position is always ground-level. Only remains visible to a certain height.)
+===Optional arguments===
-** '''"ring"''': Ring (doughnut-shaped)
+{{OptionalArg}}
-** '''"cylinder"''': Cylinder (Note: Currently z position is always ground-level.)
+* '''theType''': The visual type of the marker to be created. Possible values:
-** '''"arrow"''': Animated arrow pointing down
+{{Marker_types}}
-** '''"corona"''': A glowing area
 * '''size''': The diameter of the marker to be created, in meters.
 * '''r''': An integer number representing the amount of red to use in the colouring of the marker (0 - 255).
 * '''g''': An integer number representing the amount of green to use in the colouring of the marker (0 - 255).
 * '''b''': An integer number representing the amount of blue to use in the colouring of the marker (0 - 255).
-* '''a''': An integer number representing the amount of alpha to use in the colouring of the marker (0 - 255).
+* '''a''': An integer number representing the amount of alpha to use in the colouring of the marker (0 - 255 where 0 is transparent and 255 is opaque).
+</section>
+===Returns===
+Returns the [[marker]] element that was created, or ''false'' if the arguments are incorrect.
 ==Example==
-''Example 1:'' This example creates a marker at the player's position when they type !createmarker in the chat box.
+<section name="Example 1" class="server" show="true">
+This example creates a marker next to the player when they type 'createmarker':
 <syntaxhighlight lang="lua">
-addEventHandler ( "onPlayerConsole", getRootElement(), "onPlayerConsole" )
+-- this function is called whenever someone types 'createmarker' in the chat:
-function onPlayerConsole ( text )
+function chatCreateMarker ( thePlayer, commandName )
-      -- Grab the command
+   if ( thePlayer ) then
-      command = gettok ( text, 1, 32 )
+      local x, y, z = getElementPosition ( thePlayer ) -- get the player's position
+      -- create a cylindrical marker next to the player:
-      --If the player types createmarker in the console
+      local theMarker = createMarker ( x + 2, y + 2, z, "cylinder", 1.5, 255, 255, 0, 170 )
-	if ( command == "console" ) then
+      if isElement ( theMarker ) then -- check if the marker was created successfully
-		x, y, z = getElementPosition ( source ) --Assign player x,y,z position to x,y,z varibles
+         outputChatBox ( "Marker created successfully", thePlayer, 0, 255, 0 )
-		createMarker ( x, y, z, 0, "checkpoint", 255, 0, 0, 255 ) --Create a marker at the x,y,z varible values
+      else
-		outputChatBox ( "You got a red marker", source )
+         outputChatBox ( "Failed to create marker", thePlayer, 255, 0, 0 )
-	end
+      end
+   end
 end
+addCommandHandler ( "createmarker", chatCreateMarker )
 </syntaxhighlight>
+</section>
-''Example 2:'' Create a marker at the coordinates 0, 0, 20:
-<syntaxhighlight lang="lua">
-createMarker ( 0, 0, 20 )
-</syntaxhighlight>
 ==See Also==
 {{Marker functions}}
+[[ru:createMarker]]
+[[ar:createMarker]]
-=='''NEEDS CHECKING'''==
+[[pl:createMarker]]
-[[Category:Needs Checking]]
-*Arrow has an extreme bounce... it needs to be definable.
-*Detection radius is huge for all... can this be optional or adjusted to be smaller?
-*Corona (glow balls) dont show under black color 0, 0, 0

CreateMarker: Difference between revisions

Latest revision as of 12:39, 10 October 2023

Syntax

Required Arguments

Optional arguments

Required Arguments

Optional arguments

Returns

Example

See Also

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