Template:ExampleCreateObjectOrBuilding

This template is used on createBuilding and createObject pages, as a unified example.

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How to automatically perform object/building creation

This example shows you how to easily verify can be used with the createBuilding function to automatically create the object or building element accordingly.

This script onlys works CLIENTSIDE due to createBuilding and engineGetModelPhysicalPropertiesGroup.

-- Creates an 'object' or 'building' element based on certain parameters or one of the functions fails
-- This function will throw an error when unexpected arguments are used
-- TODO: Add LOD support
function createObjectOrBuilding(modelID, x, y, z, rx, ry, rz, interior, dimension)
    -- Validate the arguments passed
    assert(type(modelID)=="number", "invalid modelID passed: " .. tostring(modelID))
    assert(type(x)=="number" and type(y)== "number" and type(z)=="number", "invalid position passed: " .. tostring(x) .. ", " .. tostring(y) .. ", " .. tostring(z))
    if not rx then rx = 0 end
    if not ry then ry = 0 end
    if not rz then rz = 0 end
    assert(type(rx)=="number" and type(ry)== "number" and type(rz)=="number", "invalid rotation passed: " .. tostring(rx) .. ", " .. tostring(ry) .. ", " .. tostring(rz))
    if not interior then interior = 0 end
    if not dimension then dimension = 0 end
    assert(type(interior)=="number" and interior >= 0 and interior <= 255, "invalid interior (must be 0-255) passed: " .. tostring(interior))
    assert(type(dimension)=="number" and dimension >= -1 and dimension <= 65535, "invalid dimension passed (must be -1 65535): " .. tostring(dimension))

    -- Dynamic object models will always have a physical properties group different than -1.
    local isNonDynamic = engineGetModelPhysicalPropertiesGroup(modelID) == -1
    -- Buildings can't be affected by dimension
    local isNormalDimension = dimension == 0
    -- Buildings can't be placed outside regular map boundaries
    local isInsideMapLimits = x >= -3000 and x <= 3000 and y >= -3000 and y <= 3000

    local obj, bld
    if isNonDynamic and isNormalDimension and isInsideMapLimits then
        bld = createBuilding(modelID, x, y, z, rx, ry, rz, interior)
        assert(bld, ("Failed to create building with model ID %d at %f, %f, %f in interior %d"):format(modelID, x, y, z, interior))
    else
        obj = createObject(modelID, x, y, z, rx, ry, rz, false)
        assert(obj, ("Failed to create object with model ID %d at %f, %f, %f"):format(modelID, x, y, z))
        setElementInterior(obj, interior)
        setElementDimension(obj, dimension)
    end
    return obj or bld
end

-- Test this create object/building function
addCommandHandler("testobject", function()
    -- This would be your object's model ID
    local modelID = 3556
    -- This would be your object's position coordinates
    local x, y, z = 0, 0, 69
    -- This would be your object's rotation coordinates
    local rx, ry, rz = 0, 0, 90
    -- This would be your object's interior ID
    local interior = 0
    -- This would be your object's dimension ID
    local dimension = 0

    -- We use pcall to catch any errors that may be thrown
    local success, element = pcall(createObjectOrBuilding, modelID, x, y, z, rx, ry, rz, interior, dimension)
    if not success then
        outputDebugString(("Failed to create object or building: %s"):format(tostring(element)), 4, 255, 25, 25)
        return
    end

    -- OPTIONAL: Then you can apply additional properties, like so:
    if getElementType(element) == "object" then
        setObjectScale(element, 1.69)
        setObjectBreakable(element, false)
    end
    setElementAlpha(element, 255)
    setElementCollisionsEnabled(element, true)
    setElementFrozen(element, false)
end)