introduce startup options

* startup options with -help and -version
* many startup options for graphics

modules/game_inventory/inventory.lua

@@ -0,0 +1,50 @@
+Inventory = {}
+
+-- private variables
+local inventoryWindow
+local inventoryButton
+
+-- public functions
+function Inventory.create()
+  inventoryWindow = displayUI('inventory.otui', g_game.gameRightPanel)
+  inventoryButton = TopMenu.addGameButton('inventoryButton', 'Inventory (Ctrl+I)', 'inventory.png', Inventory.toggle)
+  inventoryButton:setOn(true)
+  Keyboard.bindKeyDown('Ctrl+I', Inventory.toggle)
+end
+
+function Inventory.destroy()
+  Keyboard.unbindKeyDown('Ctrl+I')
+  inventoryWindow:destroy()
+  inventoryWindow = nil
+  inventoryButton:destroy()
+  inventoryButton = nil
+end
+
+function Inventory.toggle()
+  local visible = not inventoryWindow:isExplicitlyVisible()
+  inventoryWindow:setVisible(visible)
+  inventoryButton:setOn(visible)
+end
+
+-- hooked events
+function Inventory.onInventoryChange(slot, item)
+  local itemWidget = inventoryWindow:getChildById('slot' .. slot)
+  itemWidget:setItem(item)
+end
+
+function Inventory.onFreeCapacityChange(freeCapacity)
+  local widget = inventoryWindow:getChildById('capacity')
+  widget:setText("Cap:\n" .. freeCapacity)
+end
+
+function Inventory.onSoulChange(soul)
+  local widget = inventoryWindow:getChildById('soul')
+  widget:setText("Soul:\n" .. soul)
+end
+
+connect(g_game, { onGameStart = Inventory.create,
+                onGameEnd = Inventory.destroy,
+                onInventoryChange = Inventory.onInventoryChange,
+                onFreeCapacityChange = Inventory.onFreeCapacityChange,
+                onSoulChange = Inventory.onSoulChange })
+

modules/game_inventory/inventory.otmod

@@ -0,0 +1,7 @@
+Module
+  name: game_inventory
+  description: View local player equipments window
+  author: OTClient team
+  website: https://github.com/edubart/otclient
+  onLoad: |
+    dofile 'inventory'

modules/game_inventory/inventory.otui

@@ -0,0 +1,114 @@
+UIWindow
+  width: 192
+  height: 154
+  margin-top: 10
+  margin-left: 6
+  margin-right: 6
+
+  Item
+    // head
+    id: slot1
+    anchors.top: parent.top
+    anchors.horizontalCenter: parent.horizontalCenter
+    &position: {x=65535, y=1, z=0}
+
+  Item
+    // armor
+    id: slot4
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=4, z=0}
+
+  Item
+    // legs
+    id: slot7
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=7, z=0}
+
+  Item
+    // feet
+    id: slot8
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=8, z=0}
+
+  Item
+    // necklace
+    id: slot2
+    anchors.top: parent.top
+    anchors.right: slot1.left
+    margin-top: 10
+    margin-right: 5
+    &position: {x=65535, y=2, z=0}
+
+  Item
+    // left
+    id: slot6
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=6, z=0}
+
+  Item
+    // ring
+    id: slot9
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=9, z=0}
+
+  Item
+    // backpack
+    id: slot3
+    anchors.top: parent.top
+    anchors.left: slot1.right
+    margin-top: 10
+    margin-left: 5
+    &position: {x=65535, y=3, z=0}
+
+  Item
+    // right
+    id: slot5
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=5, z=0}
+
+  Item
+    // ammo
+    id: slot10
+    anchors.top: prev.bottom
+    anchors.horizontalCenter: prev.horizontalCenter
+    margin-top: 5
+    &position: {x=65535, y=10, z=0}
+
+  GameLabel
+    id: soul
+    anchors.top: slot9.bottom
+    anchors.bottom: slot8.bottom
+    anchors.left: slot9.left
+    anchors.right: slot9.right
+    margin-top: 5
+
+    text-align: center
+
+    image-source: /core_styles/styles/images/panel_flat.png
+    image-border: 1
+
+  GameLabel
+    id: capacity
+    anchors.top: slot10.bottom
+    anchors.bottom: slot8.bottom
+    anchors.left: slot10.left
+    anchors.right: slot10.right
+    margin-top: 5
+
+    text-align: center
+
+    image-source: /core_styles/styles/images/panel_flat.png
+    image-border: 1
+