Sphere snake wip demo

examples/wip/snake2.js

@@ -1,35 +1,69 @@
-// Snake by Patrick OReilly and Richard Davey
-// Twitter: @pato_reilly Web: http://patricko.byethost9.com
-
-var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update,render : render });
+var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });
 
 function preload() {
 
-    game.load.image('ball','assets/sprites/shinyball.png');
+    game.load.spritesheet('snake','assets/games/snake/sprites.png', 32, 32);
+    game.load.image('ball', 'assets/sprites/pangball.png');
 
 }
 
+var snake;
+
 var snakeHead; //head of snake sprite
-var snakeSection = new Array(); //array of sprites that make the snake body sections
-var snakePath = new Array(); //arrary of positions(points) that have to be stored for the path the sections follow
-var numSnakeSections = 6; //number of snake body sections
+var snakePath = []; //arrary of positions(points) that have to be stored for the path the sections follow
+var numSnakeSections = 10; //number of snake body sections
 var snakeSpacer = 6; //parameter that sets the spacing between sections
+var snakeSpeed = 250;
+var snakeLength = 10;
+
+var fruit;
+
+var snakeCircles = [];
+var node;
+var ball;
 
 function create() {
 
     game.world.setBounds(0, 0, 800, 600);
 
+    game.stage.backgroundColor = '#0f4e93';
+
     cursors = game.input.keyboard.createCursorKeys();
 
-    snakeHead = game.add.sprite(400, 300, 'ball');
+    snake = game.add.group();
+
+    snakeHead = snake.create(400, 300, 'snake', 5);
     snakeHead.anchor.setTo(0.5, 0.5);
+    snakeHead.animations.add('chomp', [5, 6], 10, true);
+    snakeHead.play('chomp');
+    snakeHead.body.collideWorldBounds = true;
+    snakeCircles.push(new Phaser.Circle(snakeHead.x, snakeHead.y, 16));
     
     //  Init snakeSection array
     for (var i = 1; i <= numSnakeSections-1; i++)
     {
-        snakeSection[i] = game.add.sprite(400, 300, 'ball');
-        snakeSection[i].anchor.setTo(0.5, 0.5);
+        var snakeSection = snake.create(400, 300, 'snake', 7);
+        snakeSection.anchor.setTo(0.5, 0.5);
+        snakeSection.animations.add('walk', [7, 8, 9, 10], 10, true);
+        snakeSection.play('walk');
+        snakeCircles.push(new Phaser.Circle(400, 300, 16));
+
+        if (i > snakeLength)
+        {
+            snakeSection.visible = false;
+        }
     }
+
+    node = new Phaser.Circle(300, 300, 170);
+    ball = game.add.sprite(node.x, node.y, 'ball');
+    ball.anchor.setTo(0.5, 0.5);
+
+    // fruit = game.add.group();
+
+    // for (var i = 0; i < 20; i++)
+    // {
+    //     fruit.create(game.world.randomX, game.world.randomY, 'snake', 2);
+    // }
     
     //  Init snakePath array
     for (var i = 0; i <= numSnakeSections * snakeSpacer; i++)
@@ -37,21 +71,51 @@ function create() {
         snakePath[i] = new Phaser.Point(400, 300);
     }
 
-    //snakeHead.body.velocity.setTo(0
+}
+
+function newNode() {
+
+    node.x = game.rnd.integerInRange(100, 700);
+    node.y = game.rnd.integerInRange(100, 500);
+    ball.x = node.x;
+    ball.y = node.y;
+    ball.alpha = 1;
 
 }
 
 function update() {
 
-    // snakeHead.body.velocity.setTo(0, 0);
+    // game.physics.collide(snakeHead, fruit, eatFruit);
+
+    var enclosed = true;
+
+    for (var i = 0; i <= numSnakeSections - 1; i++)
+    {
+        if (Phaser.Circle.intersects(snakeCircles[i], node) === false)
+        {
+            enclosed = false;
+            break;
+        }
+    }
+
+    if (enclosed)
+    {
+        ball.alpha -= 0.02;
+
+        if (ball.alpha <= 0)
+        {
+            newNode();
+        }
+    }
+
     snakeHead.body.angularVelocity = 0;
     
     // if (cursors.up.isDown)
     // {
-        snakeHead.body.velocity.copyFrom(game.physics.velocityFromAngle(snakeHead.angle, 200));
+        snakeHead.body.velocity.copyFrom(game.physics.velocityFromAngle(snakeHead.angle, snakeSpeed));
 
-        // Everytime the snake head moves, insert the new location at the start of the array, 
-        // and knock the last position off the end
+        snakeCircles[0].x = snakeHead.x;
+        snakeCircles[0].y = snakeHead.y;
 
         var part = snakePath.pop();
 
@@ -61,24 +125,45 @@ function update() {
 
         for (var i = 1; i <= numSnakeSections - 1; i++)
         {
-            snakeSection[i].x = (snakePath[i * snakeSpacer]).x;
-            snakeSection[i].y = (snakePath[i * snakeSpacer]).y;
+            var x = (snakePath[i * snakeSpacer]).x;
+            var y = (snakePath[i * snakeSpacer]).y;
+            snake.getAt(i).x = x;
+            snake.getAt(i).y = y;
+            snakeCircles[i].x = x;
+            snakeCircles[i].y = y;
         }
     // }
 
     if (cursors.left.isDown)
     {
-        snakeHead.body.angularVelocity = -300;
+        snakeHead.body.angularVelocity = -220;
     }
     else if (cursors.right.isDown)
     {
-        snakeHead.body.angularVelocity = 300;
+        snakeHead.body.angularVelocity = 220;
     }
 
 }
 
+function eatFruit(snakeHead, fruit) {
+
+    fruit.kill();
+
+    snakeLength++;
+
+    snake.getAt(snakeLength).visible = true;
+    snakeSpeed += 10;
+
+}
+
 function render() {
 
-    // game.debug.renderSpriteInfo(snakeHead, 32, 32);
+    //game.debug.renderCircle(node);
+
+    for (var i = 0; i <= numSnakeSections - 1; i++)
+    {
+        //game.debug.renderCircle(snakeCircles[i], 'rgb(255,0,0)');
+    }
+
 
 }