Keyboard

Currently, there can only be one keyboard present at any time. Users can use the keyboard inputs to control game actions, such as:

Player Movement
Menu Selections
and much more

Mapped Keys:

Here is a list of the mapped keys and their names when using the keyboard:

Registerd Typewriter Keys


KEY_A	KEY_B	KEY_C	KEY_D	KEY_E	KEY_F	KEY_G	KEY_H
KEY_I	KEY_J	KEY_K	KEY_L	KEY_M	KEY_N	KEY_O	KEY_P
KEY_Q	KEY_R	KEY_S	KEY_T	KEY_U	KEY_V	KEY_W	KEY_X
KEY_Y	KEY_Z	KEY_C	KEY_D	KEY_E	KEY_F	KEY_G	KEY_H


KEY_0	KEY_1	KEY_2	KEY_3	KEY_4	KEY_5	KEY_6	KEY_7
KEY_8	KEY_9


KEY_ENTER	KEY_BACKSPACE	KEY_ESC	KEY_SPACE	KEY_LALT	KEY_LSHIFT
KEY_LCTRL	KEY_RCTRL	KEY_RALT	KEY_RSHIFT

Registerd Function Keys


KEY_F1	KEY_F2	KEY_F3	KEY_F4	KEY_F5	KEY_F6	KEY_F7	KEY_F8
KEY_F9	KEY_F10	KEY_F11	KEY_F12

Registerd Cursor Control Keys


KEY_UP	KEY_RIGHT	KEY_DOWN	KEY_LEFT

Keyboard Functions:

Function	Description
just_pressed(key)	The just pressed function is used when the user only wants the key to register once per press, and the reset upon release.
just_released(key)	This will return true whenever the key argument has been released.
pressed(key)	Returns true whenever the button is held down. Used when the user needs continuous input from the key.

Example Usage:

local physics = entity:get_component(Physics)

-- Set the linear velocity of the entity based on the WASD keys
if Keyboard.pressed(KEY_W) then 
	physics:set_linear_velocity(vec2(0, 50))
elseif Keyboard.pressed(KEY_S) then 
	physics:set_linear_velocity(vec2(0, -50))
elseif Keyboard.pressed(KEY_A) then 
	physics:set_linear_velocity(vec2(-50, 0))
elseif Keyboard.pressed(KEY_D) then 
	physics:set_linear_velocity(vec2(50, 0))
end 

-- Have the entity jump if space bar is pressed 
if Keyboard.just_pressed(KEY_SPACE) then 
	physics:linear_impulse(vec2(0, -10000)
end