Phaser path Trajectory Moving picture effect example

Last Update:2017-01-13 Source: Internet

Author: User

Tags min

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The idea of the path

Our idea is to define a path and then let an object move in the interface according to the path.

Path principle

Actually the path in the computer is made up of dots, so we need to define a lot of points to draw a path?

Not to define a lot of points, we just need to define two or more points on the base to describe a path through phaser.

Draw a path

The code is as follows

Copy Code

<! DOCTYPE html>
<meta charset= "Utf-8" >
<script src= "Js/phaser.min.js" ></script>
<body>
<div id= "Phaser-example" ></div>

});

var phasergame = function () {
This.bmd = null;
This.points = {
' X ': [32, 600],
' Y ': [240, 240]
};
};

Phasergame.prototype = {
Create:function () {
This.stage.backgroundColor = ' #204090 ';
This.bmd = This.add.bitmapData (This.game.width, this.game.height);
This.bmd.addToWorld ();

           //Generate different Y-position
             var py = this.points.y;
            for (var i = 0; i < py.length i++) {
;               Py[i] = This.rnd.between (32 , 432);
           }
            this.bmd.clear ();
            var x = 1/game.width;

To generate a path through the X axis
for (var i = 0; I <= 1; i = = x) {
Linear algorithm Generation Path point
var px = this.math.linearInterpolation (this.points.x, i);
var py = this.math.linearInterpolation (this.points.y, i);

Draw lines
This.bmd.rect (px, py, 2, 2, ' Rgba (255, 255, 255, 1) ');
}

/* Debug * *
for (var p = 0; p < this.points.x.length; p++) {
This.bmd.rect (This.points.x[p]-3, this.points.y[p]-3, 6, 6, ' Rgba (255, 0, 0, 1) ');
}
}

};
Game.state.add (' Game ', Phasergame, true);
</script>
</body>

Let the graph move according to the path

The code is as follows

Copy Code

<! DOCTYPE html>
<meta charset= "Utf-8" >
<script src= "Js/phaser.min.js" ></script>
<body>
<div id= "Phaser-example" ></div>

});

var phasergame = function () {

This.bmd = null;

This.points = {
' X ': [32, 128, 256, 384, 512, 608],
' Y ': [240, 240, 240, 240, 240, 240]
};

This.preload = function () {///when preload data is complete, execute create functions
Game.load.image (' opensource ', ' images/opensource.jpg ');
}
};

Phasergame.prototype = {

Create:function () {

This.stage.backgroundColor = ' #204090 ';

This.bmd = This.add.bitmapData (This.game.width, this.game.height);
This.bmd.addToWorld ();

var py = This.points.y;

for (var i = 0; i < py.length; i++)
{
Py[i] = This.rnd.between (32, 432);
}
opensource = game.add.sprite (0, 0, ' opensource ');
Tween = Game.add.tween (opensource). to (
{}, Phaser.Easing.Quartic.In, False, 0, 0)

This.plot ();

Plot:function () {

This.bmd.clear ();

var x = 1/game.width;

for (var i = 0; I <= 1; i = = x)
{
var px = this.math.linearInterpolation (this.points.x, i);
var py = this.math.linearInterpolation (this.points.y, i);

var px = this.math.bezierInterpolation (this.points.x, i);
var py = this.math.bezierInterpolation (this.points.y, i);

var px = this.math.catmullRomInterpolation (this.points.x, i);
var py = this.math.catmullRomInterpolation (this.points.y, i);

This.bmd.rect (px, py, 1, 1, ' Rgba (255, 255, 255, 1) ');

Console.log (px%2);
if (Px%8 > 6) {
Tween.to (
{x:px,y:py}, Phaser.Easing.Linear.In, False, 0, 0);

}

}
Tween.start ();

/* Debug * *
for (var p = 0; p < this.points.x.length; p++)
{
This.bmd.rect (This.points.x[p]-3, this.points.y[p]-3, 6, 6, ' Rgba (255, 0, 0, 1) ');
}
}

};

Game.state.add (' Game ', Phasergame, true);
</script>
</body>

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