Very little 2d game Engine, made with java swing. Use it for project that don't have great performance requirement like strategy game.

How to use

• First create the engine's instance

int widthOfTheWindow = 800; 
int heightOfTheWindow = 600; 
SwingEngine engine = new SwingEngine("nameOfYourGame", widthOfTheWindow, heightOfTheWindow);

Menu

• Then create a menu panel, the menu panel is the main menu

MenuPanel menu = new MenuPanel("nameOfYourMenu");   
menu.addComponent(new JButton("uselessButton"));

• You can change style, or add a play button on sub menu or on menu panel like that

menu.setHorizontalAlignement();
menu.addPlayButton(engine);

• You can add sub menu to your main menu

SubMenuPanel subMenu = new SubMenuPanel("nameOfYourSubMenu");
subMenu.addPlayButton(engine);
menu.addSubMenu(subMenu);

• Now you have to add button to navigate between sub menu To add button on main menu which go to sub menu

menu.addSubMenuButton("nameOfTheButton", subMenu);

To add button on sub menu which go to an other sub menu

menu.addSubMenuButtonOnSubMenu(subMenuToAddButton, "nameOfTheButton", otherSubMenuToGoingTo);

• When you have done with your sub menu and menu, you must add the menu panel to the engine

engine.setMenu(menu);

Game

• Create a sprite of character

int initialXPosition = 0;
int initialYPosition = 0;
int initialWidthSize = 128;
int initialHeightSize = 128;
Sprite character = new Sprite("pathToImageFile", new Position(initialXPosition, initialYPosition), initialWidthSize, initialHeightSize);

• add annimation to character

int xPositionInImageOfSprite = 0;
int yPositionInImageOfSprite = 0;
int numberOfSubImageOfThisAnimation = 8;
int sizeOfOneSubImageOfAnimation = 100;
int speedOfAnimation = 1;
character.addAnimation("nameAndIndentifierOfAnimation", new Animation(xPositionInImageOfSprite, yPositionInImageOfSprite, numberOfSubImageOfThisAnimation, sizeOfOneSubImageOfAnimation, speedOfAnimation));

• add the sprite to the engine

character.setActualState("nameAndIndentifierOfAnimation");
engine.addDrawer(character);

• now you can select a animation like this if you want to show animation until next selection

character.setActualState("nameAndIndentifierOfAnimation");

if you want to show animation x time, you must specify what animation play after

int numberOfTimePlayAnimation = 2;
character.setActualState("nameAndIndentifierOfAnimation", numberOfTimePlayAnimation, "nameAndIndentifierOfAnimationAfter");

• add controller to control your main character isKeyRealease is equals to 0, action start when key is pressed. isKeyRealease is equals to 1, action start when key is released.

int isKeyRealease = 0;
engine.addController(KeyEvent.VK_LEFT, isKeyRealease, new AbstractAction() { @Override public void actionPerformed(ActionEvent actionEvent) {
System.out.println("Left is clicked");
}});

• Finaly you can run the game ;)

engine.run();