Fix Overworld Center View

[noeinan]

PC should be centered at all times with the map moving behind them. Currently, PC is in the bottom right corner with the map moving behind them.

[noeinan]

Game was set to 1280x720, fixed code

################################################################################
## Initialization
################################################################################

## The init offset statement causes the initialization statements in this file
## to run before init statements in any other file.
init offset = -2

## Calling gui.init resets the styles to sensible default values, and sets the
## width and height of the game.
init python:
    gui.init(1920, 1080)