Update with new function

camera_shake_add() //add value to shake

camera_shake_set() //set shake value

camera_shake_get() //return current camera shake value

mouse_hover() //return id instance over the mouse

wave() //return wave value (better desc in script file)

blink() //make image_alpha 1 or -1 in time interval

collision_line_directional() //normal line collision just with directional

foreach() //do something with every element in list (instruction in script file)