remove one debug code
tweaking sprite width and physic width for player class
fix 2 bugs in fixCoordinate
camera focus to player one
adding pointer to the world itself
Ray Cast algorithm added and tested
Light class added
raycast draw optimize
ray cast test removed
remove light cast tolerance mistake
light degree and width added to light class
fixin bug; removing optimization due to bug
Light modding facility and flicker light mod added
Light swinging mod added
SunFx Mod added
fall (down+space) added and minor changes to the player's render function
adding state on and off to fix bug in mod
change parameter in light class, LightSwingMod and also gravity and jump speed
adding new parameter ( type ) to Player class