AdjustableCamera.lua

AdjustableCamera = {}

if AdjustableCamera.modName == nil then AdjustableCamera.modName = g_currentModName end
AdjustableCamera.offsetStep = 0.02

function AdjustableCamera:onLoad(savegame)    
    self.spec_adjustableCamera = self["spec_"..AdjustableCamera.modName..".AdjustableCamera"]
end

function AdjustableCamera.prerequisitesPresent(specializations)
    return true
end

function AdjustableCamera.registerFunctions(vehicleType)
    SpecializationUtil.registerFunction(vehicleType, "adjustCamera", AdjustableCamera.adjustCamera)
end

function AdjustableCamera:adjustCamera(offsetX, offsetY, offsetZ)
    -- print("AdjustableCamera.adjustCamera");
    
    if self.isClient then
        -- print(offsetX, offsetY, offsetZ)
        local spec = self.spec_adjustableCamera
        local cam = self.spec_enterable.activeCamera

        if cam ~= nil and (cam.hasExtraRotationNode == nil or cam.hasExtraRotationNode == false) then
            if g_gameSettings:getValue("isHeadTrackingEnabled") and cam.headTrackingNode ~= nil then
                spec.htCameraChanged = true
                local htX, htY, htZ = getTranslation(cam.headTrackingNode)
                if spec.origHtX == nil then spec.origHtX = htX end
                if spec.origHtY == nil then spec.origHtY = htY end
                if spec.origHtZ == nil then spec.origHtZ = htZ end
                setTranslation(cam.headTrackingNode, htX + offsetX, htY + offsetY, htZ + offsetZ)
            else
                spec.cameraChanged = true

                if spec.origTransX == nil then spec.origTransX = cam.transDirX end
                if spec.origTransY == nil then spec.origTransY = cam.transDirY end
                if spec.origTransZ == nil then spec.origTransZ = cam.transDirZ end
                if spec.origZoom == nil then spec.origZoom = cam.zoom end
                if spec.origZoomTarget == nil then spec.origZoomTarget = cam.zoomTarget end

                -- Fix for crane cameras
                if cam.zoom < 0.01 then
                    cam.zoom = 1
                    cam.zoomTarget = 1
                end

                cam.transDirX = cam.transDirX + offsetX
                cam.transDirY = cam.transDirY + offsetY
                cam.transDirZ = cam.transDirZ + offsetZ

                cam.changedByAdjustableCameraMod = true
            end
        end
    end
end

function AdjustableCamera:actionEventCameraForward(actionName, inputValue, callbackState, isAnalog)
    -- print("AdjustableCamera.actionEventCameraForward");
    if self.isClient then
        self:adjustCamera(0, 0, AdjustableCamera.offsetStep)
    end
end

function AdjustableCamera:actionEventCameraBackward(actionName, inputValue, callbackState, isAnalog)
    -- print("AdjustableCamera.actionEventCameraBackward");
    if self.isClient then
        self:adjustCamera(0, 0, -AdjustableCamera.offsetStep)
    end
end

function AdjustableCamera:actionEventCameraLeft(actionName, inputValue, callbackState, isAnalog)
    -- print("AdjustableCamera.actionEventCameraLeft");
    if self.isClient then
        self:adjustCamera(AdjustableCamera.offsetStep, 0, 0)
    end
end

function AdjustableCamera:actionEventCameraRight(actionName, inputValue, callbackState, isAnalog)
    -- print("AdjustableCamera.actionEventCameraRight");
    if self.isClient then
        self:adjustCamera(-AdjustableCamera.offsetStep, 0, 0)
    end
end

function AdjustableCamera:actionEventCameraDown(actionName, inputValue, callbackState, isAnalog)
    -- print("AdjustableCamera.actionEventCameraDown");
    if self.isClient then
        self:adjustCamera(0, -AdjustableCamera.offsetStep, 0)
    end
end

function AdjustableCamera:actionEventCameraUp(actionName, inputValue, callbackState, isAnalog)
    -- print("AdjustableCamera.actionEventCameraDown");
    if self.isClient then
        self:adjustCamera(0, AdjustableCamera.offsetStep, 0)
    end
end

function AdjustableCamera:actionEventCameraReset()
    -- print("AdjustableCamera.actionEventCameraReset");
    if self.isClient then
        local spec = self.spec_adjustableCamera
        local cam = self.spec_enterable.activeCamera
        if cam ~= nil then
            if g_gameSettings:getValue("isHeadTrackingEnabled") and cam.headTrackingNode ~= nil and spec.htCameraChanged ~=nil then
                setTranslation(cam.headTrackingNode, spec.origHtX, spec.origHtY, spec.origHtZ)
            elseif spec.cameraChanged ~= nil and cam.changedByAdjustableCameraMod ~= nil then
                cam.transDirX = spec.origTransX
                cam.transDirY = spec.origTransY
                cam.transDirZ = spec.origTransZ
                cam.zoom = spec.origZoom
                cam.zoomTarget = spec.origZoomTarget
            end
        end
    end
end

function AdjustableCamera:onRegisterActionEvents(isActiveForInput, isActiveForInputIgnoreSelection)
    -- print("AdjustableCamera.onRegisterActionEvents");

    if self.isClient then

        local spec = self.spec_adjustableCamera
        self:clearActionEventsTable(spec.actionEvents)
        AdjustableCamera.actionEvents = {} 

        if self:getIsActiveForInput(true) and spec ~= nil then 

            local _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_FORWARD, self, AdjustableCamera.actionEventCameraForward, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_BACKWARD, self, AdjustableCamera.actionEventCameraBackward, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_LEFT, self, AdjustableCamera.actionEventCameraLeft, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_RIGHT, self, AdjustableCamera.actionEventCameraRight, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_RESET, self, AdjustableCamera.actionEventCameraReset, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_DOWN, self, AdjustableCamera.actionEventCameraDown, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
            _, actionEventId = self:addActionEvent(AdjustableCamera.actionEvents, InputAction.ADJUSTABLE_CAMERA_UP, self, AdjustableCamera.actionEventCameraUp, false, true, false, true, nil)
            g_inputBinding:setActionEventTextPriority(actionEventId, GS_PRIO_LOW)
            g_inputBinding:setActionEventTextVisibility(actionEventId, false)
        end
    end
end

function AdjustableCamera.registerEventListeners(vehicleType)
    -- print("AdjustableCamera.registerEventListeners");    
    SpecializationUtil.registerEventListener(vehicleType, "onLoad", AdjustableCamera);
    SpecializationUtil.registerEventListener(vehicleType, "onRegisterActionEvents", AdjustableCamera);
end