local OffsetTexScript = {}


local InputT
local InputU
local OutputU1
local OutputU2

function OffsetTexScript.onInit(self, graph)
	graph:updateProperties({name = "OffsetTexture"})

    -- create input linkers
    local inputs = graph:setInputLinkers
    {
        {
            type            = octane.PT_TEXTURE,
            label           = "Tex-in",
            fromNodeType    = octane.NT_OUT_TEXTURE,
            fromPinId       = octane.P_INPUT
        },
        {
            type            = octane.PT_TRANSFORM,
            label           = "UV-in",
            fromNodeType    = octane.NT_OUT_TRANSFORM,
            fromPinId       = octane.P_INPUT
        }

    }
    InputT = inputs[1]
    InputU = inputs[2]
        
    -- create output linkers
    local outputs = graph:setOutputLinkers
        {
            {
                type = octane.PT_TEXTURE,
                label = "tex-out-1"
            },
            {
                type = octane.PT_TEXTURE,
                label = "tex-out-2"
            },
        }
        
    -- create nodes that will provide the normal texture and the copy with new transform value
    OutputU1 = octane.node.create
    {
        type         = octane.NT_OUT_TEXTURE,
        name         = outputs[1].name,
        graphOwner	 = graph,
        pinOwnerNode = outputs[1],
        pinOwnerIx   = 1
    }
    OutputU2 = octane.node.create
    {
        type         = octane.NT_OUT_TEXTURE,
        name         = outputs[2].name,
        graphOwner	 = graph,
        pinOwnerNode = outputs[2],
        pinOwnerIx   = 1
    }
    OutputU1:connectTo(octane.P_INPUT, InputT)

end


function OffsetTexScript.onEvaluate(self, graph)
    local inTex		= InputT:getConnectedNode(octane.P_INPUT)
    local Tex2      = octane.nodegraph.copyItemTree(graph, inTex)
    local inUV	    = InputU:getConnectedNode(octane.P_INPUT)
    local UV2       = octane.nodegraph.copyItemTree(graph, inUV)
    Tex2:connectTo(octane.P_TRANSFORM, UV2)
    OutputU2:connectTo(octane.P_INPUT, Tex2)

end

return OffsetTexScript