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https://github.com/OpenMW/openmw.git
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247 lines
9.5 KiB
Lua
247 lines
9.5 KiB
Lua
local camera = require('openmw.camera')
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local core = require('openmw.core')
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local input = require('openmw.input')
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local settings = require('openmw.settings')
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local util = require('openmw.util')
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local self = require('openmw.self')
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local head_bobbing = require('scripts.omw.head_bobbing')
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local third_person = require('scripts.omw.third_person')
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local MODE = camera.MODE
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local previewIfStandSill = settings._getBoolFromSettingsCfg('Camera', 'preview if stand still')
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local showCrosshairInThirdPerson = settings._getBoolFromSettingsCfg('Camera', 'view over shoulder')
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local primaryMode
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local noModeControl = 0
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local noStandingPreview = 0
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local noHeadBobbing = 0
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local noZoom = 0
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local function init()
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camera.allowCharacterDeferredRotation(settings._getBoolFromSettingsCfg('Camera', 'deferred preview rotation'))
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if camera.getMode() == MODE.FirstPerson then
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primaryMode = MODE.FirstPerson
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else
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primaryMode = MODE.ThirdPerson
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camera.setMode(MODE.ThirdPerson)
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end
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end
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local smoothedSpeed = 0
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local previewTimer = 0
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local function updatePOV(dt)
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local switchLimit = 0.25
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if input.isActionPressed(input.ACTION.TogglePOV) and input.getControlSwitch(input.CONTROL_SWITCH.ViewMode) then
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previewTimer = previewTimer + dt
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if primaryMode == MODE.ThirdPerson or previewTimer >= switchLimit then
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third_person.standingPreview = false
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camera.setMode(MODE.Preview)
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end
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elseif previewTimer > 0 then
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if previewTimer <= switchLimit then
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if primaryMode == MODE.FirstPerson then
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primaryMode = MODE.ThirdPerson
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else
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primaryMode = MODE.FirstPerson
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end
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end
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camera.setMode(primaryMode)
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previewTimer = 0
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end
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end
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local idleTimer = 0
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local vanityDelay = settings.getGMST('fVanityDelay')
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local function updateVanity(dt)
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if input.isIdle() then
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idleTimer = idleTimer + dt
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else
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idleTimer = 0
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end
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local vanityAllowed = input.getControlSwitch(input.CONTROL_SWITCH.VanityMode)
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if vanityAllowed and idleTimer > vanityDelay and camera.getMode() ~= MODE.Vanity then
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camera.setMode(MODE.Vanity)
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end
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if camera.getMode() == MODE.Vanity then
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if not vanityAllowed or idleTimer == 0 then
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camera.setMode(primaryMode)
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else
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camera.setYaw(camera.getYaw() + math.rad(3) * dt)
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end
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end
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end
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local function updateSmoothedSpeed(dt)
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local speed = self:getCurrentSpeed()
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speed = speed / (1 + speed / 500)
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local maxDelta = 300 * dt
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smoothedSpeed = smoothedSpeed + util.clamp(speed - smoothedSpeed, -maxDelta, maxDelta)
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end
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local minDistance = 30
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local maxDistance = 800
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local function zoom(delta)
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if not input.getControlSwitch(input.CONTROL_SWITCH.ViewMode) or
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not input.getControlSwitch(input.CONTROL_SWITCH.Controls) or
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camera.getMode() == MODE.Static or noZoom > 0 then
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return
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end
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if camera.getMode() ~= MODE.FirstPerson then
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local obstacleDelta = third_person.preferredDistance - camera.getThirdPersonDistance()
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if delta > 0 and third_person.baseDistance == minDistance and
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(camera.getMode() ~= MODE.Preview or third_person.standingPreview) and noModeControl == 0 then
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primaryMode = MODE.FirstPerson
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camera.setMode(primaryMode)
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elseif delta > 0 or obstacleDelta < -delta then
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third_person.baseDistance = util.clamp(third_person.baseDistance - delta - obstacleDelta, minDistance, maxDistance)
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end
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elseif delta < 0 and noModeControl == 0 then
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primaryMode = MODE.ThirdPerson
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camera.setMode(primaryMode)
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third_person.baseDistance = minDistance
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end
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end
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local function applyControllerZoom(dt)
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if camera.getMode() == MODE.Preview then
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local triggerLeft = input.getAxisValue(input.CONTROLLER_AXIS.TriggerLeft)
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local triggerRight = input.getAxisValue(input.CONTROLLER_AXIS.TriggerRight)
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local controllerZoom = (triggerRight - triggerLeft) * 100 * dt
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if controllerZoom ~= 0 then
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zoom(controllerZoom)
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end
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end
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end
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local function updateStandingPreview()
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local mode = camera.getMode()
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if not previewIfStandSill or noStandingPreview > 0
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or mode == MODE.FirstPerson or mode == MODE.Static or mode == MODE.Vanity then
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third_person.standingPreview = false
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return
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end
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local standingStill = self:getCurrentSpeed() == 0 and not self:isInWeaponStance() and not self:isInMagicStance()
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if standingStill and mode == MODE.ThirdPerson then
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third_person.standingPreview = true
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camera.setMode(MODE.Preview)
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elseif not standingStill and third_person.standingPreview then
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third_person.standingPreview = false
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camera.setMode(primaryMode)
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end
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end
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local function updateCrosshair()
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camera.showCrosshair(
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camera.getMode() == MODE.FirstPerson or
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(showCrosshairInThirdPerson and (camera.getMode() == MODE.ThirdPerson or third_person.standingPreview)))
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end
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local function onUpdate(dt)
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camera.setExtraPitch(0)
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camera.setExtraYaw(0)
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camera.setRoll(0)
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camera.setFirstPersonOffset(util.vector3(0, 0, 0))
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updateSmoothedSpeed(dt)
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end
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local function onInputUpdate(dt)
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local mode = camera.getMode()
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if mode == MODE.FirstPerson or mode == MODE.ThirdPerson then
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primaryMode = mode
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end
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if mode ~= MODE.Static then
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if not camera.getQueuedMode() or camera.getQueuedMode() == MODE.Preview then
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if noModeControl == 0 then
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updatePOV(dt)
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updateVanity(dt)
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end
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updateStandingPreview()
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end
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updateCrosshair()
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end
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applyControllerZoom(dt)
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third_person.update(dt, smoothedSpeed)
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if noHeadBobbing == 0 then head_bobbing.update(dt, smoothedSpeed) end
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end
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return {
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interfaceName = 'Camera',
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--- @module Camera
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-- @usage require('openmw.interfaces').Camera
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interface = {
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--- Interface version
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-- @field [parent=#Camera] #number version
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version = 0,
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--- Return primary mode (MODE.FirstPerson or MODE.ThirdPerson).
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-- @function [parent=#Camera] getPrimaryMode
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getPrimaryMode = function() return primaryMode end,
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--- @function [parent=#Camera] getBaseThirdPersonDistance
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getBaseThirdPersonDistance = function() return third_person.baseDistance end,
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--- @function [parent=#Camera] setBaseThirdPersonDistance
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setBaseThirdPersonDistance = function(v) third_person.baseDistance = v end,
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--- @function [parent=#Camera] getTargetThirdPersonDistance
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getTargetThirdPersonDistance = function() return third_person.preferredDistance end,
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--- @function [parent=#Camera] isModeControlEnabled
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isModeControlEnabled = function() return noModeControl == 0 end,
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--- @function [parent=#Camera] disableModeControl
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disableModeControl = function() noModeControl = noModeControl + 1 end,
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--- @function [parent=#Camera] enableModeControl
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enableModeControl = function() noModeControl = math.max(0, noModeControl - 1) end,
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--- @function [parent=#Camera] isStandingPreviewEnabled
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isStandingPreviewEnabled = function() return previewIfStandSill and noStandingPreview == 0 end,
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--- @function [parent=#Camera] disableStandingPreview
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disableStandingPreview = function() noStandingPreview = noStandingPreview + 1 end,
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--- @function [parent=#Camera] enableStandingPreview
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enableStandingPreview = function() noStandingPreview = math.max(0, noStandingPreview - 1) end,
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--- @function [parent=#Camera] isHeadBobbingEnabled
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isHeadBobbingEnabled = function() return head_bobbing.enabled and noHeadBobbing == 0 end,
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--- @function [parent=#Camera] disableHeadBobbing
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disableHeadBobbing = function() noHeadBobbing = noHeadBobbing + 1 end,
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--- @function [parent=#Camera] enableHeadBobbing
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enableHeadBobbing = function() noHeadBobbing = math.max(0, noHeadBobbing - 1) end,
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--- @function [parent=#Camera] isZoomEnabled
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isZoomEnabled = function() return noZoom == 0 end,
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--- @function [parent=#Camera] disableZoom
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disableZoom = function() noZoom = noZoom + 1 end,
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--- @function [parent=#Camera] enableZoom
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enableZoom = function() noZoom = math.max(0, noZoom - 1) end,
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--- @function [parent=#Camera] isThirdPersonOffsetControlEnabled
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isThirdPersonOffsetControlEnabled = function() return third_person.noOffsetControl == 0 end,
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--- @function [parent=#Camera] disableThirdPersonOffsetControl
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disableThirdPersonOffsetControl = function() third_person.noOffsetControl = third_person.noOffsetControl + 1 end,
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--- @function [parent=#Camera] enableThirdPersonOffsetControl
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enableThirdPersonOffsetControl = function() third_person.noOffsetControl = math.max(0, third_person.noOffsetControl - 1) end,
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},
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engineHandlers = {
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onUpdate = onUpdate,
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onInputUpdate = onInputUpdate,
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onInputAction = function(action)
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if core.isWorldPaused() then return end
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if action == input.ACTION.ZoomIn then
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zoom(10)
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elseif action == input.ACTION.ZoomOut then
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zoom(-10)
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end
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end,
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onActive = init,
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onLoad = function(data)
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if data and data.distance then third_person.baseDistance = data.distance end
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end,
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onSave = function()
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return {version = 0, distance = third_person.baseDistance}
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end,
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},
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}
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