CreateSearchLight

This function creates a searchlight. A searchlight is a spotlight which looks like the one available in the Police Maverick.

Syntax

searchlight createSearchLight ( float startX, float startY, float startZ, float endX, float endY, float endZ, float startRadius, float endRadius [, bool renderSpot = true ] )

OOP Syntax Help! I don't understand this!

Method: SearchLight.create(...)

Required Arguments

startX: the X coordinate where the searchlight light cone will start.
startY: the Y coordinate where the searchlight light cone will start.
startZ: the Z coordinate where the searchlight light cone will start.
endX: the X coordinate of the direction where the searchlight will point to.
endY: the Y coordinate of the direction where the searchlight will point to.
endZ: the Z coordinate of the direction where the searchlight will point to.
startRadius: the radius of the searchlight's light cone in its beginning.
endRadius: the radius of the searchlight's light cone in its end.

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.

renderSpot: if true, the searchlight will lighten the surface where it ends.

Returns

If every argument is correct, this function returns a searchlight element. Otherwise, it returns false.

Example

This example allows players to wear a helmet lantern, which can be toggled on or off by pressing O or using /togglelantern. It uses createSearchLight to create the illumination effect.

local helmetLanterns

local function updateHelmetLantern()
    -- We need to do it this way because there isn't a setSearchLightStart/EndPosition for now
    -- Calculate light properties
    local helmetPos, playerMatrix = Vector3(getPedBonePosition(localPlayer, 6)), getElementMatrix(localPlayer)
    local targetPos = Vector3(playerMatrix[4][1] + playerMatrix[2][1] * 3, playerMatrix[4][2] + playerMatrix[2][2] * 3, playerMatrix[4][3] + playerMatrix[2][3] * 3)
    -- Finally, create the updated searchlight
    helmetLanterns[#helmetLanterns + 1] = createSearchLight(helmetPos, targetPos, 0, 15)
    -- We need to keep two searchlights, so they have time to render visible and look nice
    if #helmetLanterns > 2 then
        destroyElement(helmetLanterns[1])
        table.remove(helmetLanterns, 1)
    end
end

local function manageHelmetLantern()
    local helmetLanternOff = not helmetLanterns
    playSoundFrontEnd(helmetLanternOff and 37 or 38)
    if helmetLanternOff then
        -- Let updateHelmetLantern take care of creating and updating the effect
        helmetLanterns = {}
        addEventHandler("onClientPreRender", root, updateHelmetLantern)
    else
        -- Stop updateHelmetLantern doing its job and clear variables
        removeEventHandler("onClientPreRender", root, updateHelmetLantern)
        for _, helmetLantern in ipairs(helmetLanterns) do
            destroyElement(helmetLantern)
        end
        helmetLanterns = nil
    end
end

-- Allow the player to turn the helmet lantern or on off by using /togglelantern or pressing O
addCommandHandler("togglelantern", manageHelmetLantern)
bindKey("o", "down", manageHelmetLantern)