crystal.Scene

Game state or level which can draw to the screen. Crystal keeps track of the currently active scene and forwards LÖVE callbacks (update, draw, etc.) to it.

This class is of little use on its own. You should implement subclasses fitting your game and override some of the callbacks.

Constructor

crystal.Scene:new()

Callbacks

Name	Description
action_pressed	Called from love.update when a player presses a key or button bound to an action.
action_released	Called from love.update when a player releases a key or button bound to an action.
draw	Called every frame from love.draw.
gamepad_pressed	Called from love.gamepadpressed.
gamepad_released	Called from love.gamepadreleased.
key_pressed	Called from love.keypressed.
key_released	Called from love.keyreleased.
mouse_moved	Called from love.mousemoved.
mouse_pressed	Called from love.mousepressed.
mouse_released	Called from love.mousereleased.
update	Called every frame from love.update.

Examples

local TitleScreen = Class("TitleScreen", crystal.Scene);

TitleScreen.draw = function(self)
  love.graphics.print("Legend of Sword", 100, 100);
end

TitleScreen.key_pressed = function(self)
  crystal.scene.replace(
  MyGameScene:new(),
    crystal.Transition.FadeToBlack:new(),
    crystal.Transition.FadeFromBlack:new()
  );
end