Esempio n. 1
0
        override public void create()
        {
            FlxG.Framerate = 60;
            //FlxG.flashFramerate = 60;

            //Here we actually initialize out emitter
            //The parameters are        X   Y                Size (Maximum number of particles the emitter can store)
            theEmitter = new FlxEmitter(10, FlxG.height / 2, 200);

            //Now by default the emitter is going to have some properties set on it and can be used immediately
            //but we're going to change a few things.

            //First this emitter is on the side of the screen, and we want to show off the movement of the particles
            //so lets make them launch to the right.
            theEmitter.setXSpeed(100, 200);

            //and lets funnel it a tad
            theEmitter.setYSpeed(-50, 50);

            //Let's also make our pixels rebound off surfaces
            theEmitter.bounce = 0.8f;

            //Now let's add the emitter to the state.
            add(theEmitter);

            //Now it's almost ready to use, but first we need to give it some pixels to spit out!
            //Lets fill the emitter with some white pixels
            for (int i = 0; i < theEmitter.maxSize / 2; i++)
            {
                whitePixel = new FlxParticle();
                whitePixel.makeGraphic(2, 2, new Color(0xFF, 0xFF, 0xFF));
                whitePixel.Visible = false;                 //Make sure the particle doesn't show up at (0, 0)
                theEmitter.add(whitePixel);
                whitePixel = new FlxParticle();
                whitePixel.makeGraphic(1, 1, new Color(0xFF, 0xFF, 0xFF));
                whitePixel.Visible = false;
                theEmitter.add(whitePixel);
            }

            //Now let's setup some buttons for messing with the emitter.
            collisionButton = new FlxButton(0, FlxG.height - 22, "Collision", onCollision);
            add(collisionButton);
            gravityButton = new FlxButton(80, FlxG.height - 22, "Gravity", onGravity);
            add(gravityButton);
            quitButton = new FlxButton(FlxG.width - 80, FlxG.height - 22, "Quit", onQuit);
            add(quitButton);

            //I'll just leave this here
            topText = new FlxText(0, 2, FlxG.width, "Welcome");
            topText.setAlignment("center");
            add(topText);

            //Lets setup some walls for our pixels to collide against
            collisionGroup = new FlxGroup();
            wall           = new FlxSprite(100, (FlxG.height / 2) - 50);
            wall.makeGraphic(10, 100, new Color(0xFF, 0xFF, 0xFF, 0x50)); //Make it darker - easier on the eyes :)
            wall.Visible   = wall.Solid = false;                          //Set both the visibility AND the solidity to false, in one go
            wall.Immovable = true;                                        //Lets make sure the pixels don't push out wall away! (though it does look funny)
            collisionGroup.add(wall);
            //Duplicate our wall but this time it's a floor to catch gravity affected particles
            floor = new FlxSprite(10, 267);
            floor.makeGraphic((uint)FlxG.width - 20, 10, new Color(0xFF, 0xFF, 0xFF, 0x50));
            floor.Visible   = floor.Solid = false;
            floor.Immovable = true;
            collisionGroup.add(floor);

            //Please note that this demo makes the walls themselves not collide, for the sake of simplicity.
            //Normally you would make the particles have solid = true or false to make them collide or not on creation,
            //because in a normal environment your particles probably aren't going to change solidity at a mouse
            //click. If they did, you would probably be better suited with emitter.setAll("solid", true)
            //I just don't feel that setAll is applicable here(Since I would still have to toggle the walls anyways)

            //Don't forget to add the group to the state(Like I did :P)
            add(collisionGroup);

            //Now lets set our emitter free.
            //Params:        Explode, Particle Lifespan, Emit rate(in seconds)
            theEmitter.start(false, 3, .01f);

            //Let's re show the cursors
            FlxG.mouse.show();
            //Mouse.hide();
        }