move 'input' library docs to a separate page

doc/en/scripting.md

@@ -22,6 +22,7 @@ Subsections:
     - [gfx.text3d](3d-text.md#gfxtext3d-library)
     - [gui](scripting/builtins/libgui.md)
     - [hud](scripting/builtins/libhud.md)
+    - [input](scripting/builtins/libinput.md)
     - [inventory](scripting/builtins/libinventory.md)
     - [item](scripting/builtins/libitem.md)
     - [mat4](scripting/builtins/libmat4.md)

doc/en/scripting/builtins/libinput.md

@@ -0,0 +1,89 @@
+# *input* library
+
+```lua
+input.keycode(keyname: str) --> int
+```
+
+Returns key code or -1 if unknown
+
+```lua
+input.mousecode(mousename: str) --> int
+```
+
+Returns mouse button code or -1 if unknown
+
+```lua
+input.add_callback(bindname: str, callback: function)
+```
+
+Add binding activation callback. Example:
+
+```lua
+input.add_callback("hud.inventory", function ()
+	print("Inventory open key pressed")
+end)
+```
+
+Callback may be added to a key.
+
+```lua
+input.add_callback("key:space", function ()
+    print("Space pressed")
+end)
+```
+
+You can also bind the function lifetime to the UI container instead of the HUD. 
+In that case, `input.add_callback` may be used until the `on_hud_open` is called.
+
+```lua
+input.add_callback("key:escape", function ()
+    print("NO")
+    return true -- prevents previously assigned functions from being called
+end, document.root)
+```
+
+```lua
+input.get_mouse_pos() --> {int, int}
+```
+
+Returns cursor screen position.
+
+```lua
+input.get_bindings() --> strings array
+```
+
+Returns all binding names.
+
+```lua
+input.get_binding_text(bindname: str) --> str
+```
+
+Returns text representation of button by binding name.
+
+```lua
+input.is_active(bindname: str) --> bool
+```
+
+Checks if the binding is active.
+
+```lua
+input.set_enabled(bindname: str, flag: bool)
+```
+
+Enables/disables binding until leaving the world.
+
+```lua
+input.is_pressed(code: str) --> bool
+```
+
+Checks input activity using a code consisting of:
+- input type: *key* or *mouse*
+- input code: [key name](#key names) or mouse button name (left, middle, right)
+
+Example:
+```lua
+if input.is_pressed("key:enter") then
+    ...
+end
+```
+

doc/en/scripting/user-input.md

@@ -25,89 +25,4 @@ packid.binding.name="inputtype:codename"
 
 ## *input* library
 
-```python
-input.keycode(keyname: str) -> int
-```
-
-Returns key code or -1 if unknown
-
-```python
-input.mousecode(mousename: str) -> int
-```
-
-Returns mouse button code or -1 if unknown
-
-```python
-input.add_callback(bindname: str, callback: function)
-```
-
-Add binding activation callback. Example:
-
-```lua
-input.add_callback("hud.inventory", function ()
-	print("Inventory open key pressed")
-end)
-```
-
-Callback may be added to a key.
-
-```lua
-input.add_callback("key:space", function ()
-    print("Space pressed")
-end)
-```
-
-You can also bind the function lifetime to the UI container instead of the HUD. 
-In that case, `input.add_callback` may be used until the `on_hud_open` is called.
-
-```lua
-input.add_callback("key:escape", function ()
-    print("NO")
-    return true -- prevents previously assigned functions from being called
-end, document.root)
-```
-
-```python
-input.get_mouse_pos() -> {int, int}
-```
-
-Returns cursor screen position.
-
-```python
-input.get_bindings() -> strings array
-```
-
-Returns all binding names.
-
-```python
-input.get_binding_text(bindname: str) -> str
-```
-
-Returns text representation of button by binding name.
-
-```python
-input.is_active(bindname: str) -> bool
-```
-
-Checks if the binding is active.
-
-```python
-input.set_enabled(bindname: str, flag: bool)
-```
-
-Enables/disables binding until leaving the world.
-
-```python
-input.is_pressed(code: str) -> bool
-```
-
-Checks input activity using a code consisting of:
-- input type: *key* or *mouse*
-- input code: [key name](#key names) or mouse button name (left, middle, right)
-
-Example:
-```lua
-if input.is_pressed("key:enter") then
-    ...
-end
-```
+See [*input* library](builtins/libinput.md)