w, up button or up arrow key = up movement
a, left button or left arrow key = left movement
s, down button or down arrow key = down movement
d, right button or right arrow key = right movement
space, stay button or right shift = stay at current position
w, up button or up arrow key = up movement a, left button or left arrow key = left movement s, down button or down arrow key = down movement d, right button or right arrow key = right movement space, stay button or right shift = stay at current position