如何在移动时旋转汽车 phase.js

Question

当我使用这段代码时，我遇到了这样的错误：Uncaught TypeError: Cannot read property 'angle' of undefined.

var app = angular.module('myapp',[]);
app.controller('mycontrol',function($scope){
var game = new Phaser.Game(700, 590, Phaser.AUTO, 'cargame');
var mainState = { 
 preload:function(){
    game.load.image('car', 'images/car90.png');
},

create:function(){
    game.physics.startSystem(Phaser.Physics.ARCADE);
       this.car =this.game.add.sprite(game.world.centerX,game.world.centerY,'car');
        this.car.anchor.setTo(0.5,0.5);

        game.physics.arcade.enable(this.car);
        this.car.body.allowRotation = true;  
},

update:function(){


            if(game.input.keyboard.isDown(Phaser.Keyboard.LEFT)){
                this.game.car.angularVelocity = -200;
            }
            else if(game.input.keyboard.isDown(Phaser.Keyboard.RIGHT)){
                this.game.car.body.angularVelocity = 200;
            }
            else if(game.input.keyboard.isDown(Phaser.Keyboard.UP)){
               this.game.car.velocity.copyFrom(game.physics.arcade.velocityFromAngle(game.car.angle, 200));
            }
            else{
                this.car.body.angularVelocity = 0;
                 this.car.body.velocity.x =0;
                this.car.body.velocity.y = 0;
            }
},
};

$scope.car1 = function(){
    game.state.add('main', mainState);  
game.state.start('main'); 

};
});

Answer 1

您正在混合使用 this.game.car 和 game.car。除此之外，velocity 和 angularVelocity 必须应用于 sprite body。

试试这个：

var game = new Phaser.Game(700, 590, Phaser.AUTO, 'cargame');
var mainState = { 
 preload:function(){
    game.load.image('car', 'notfonud');
},

create:function(){
    game.physics.startSystem(Phaser.Physics.ARCADE);
    this.car =this.game.add.sprite(game.world.centerX,game.world.centerY,'car');
    this.car.anchor.setTo(0.5,0.5);

    game.physics.arcade.enable(this.car);
    this.car.body.allowRotation = true;  
},

update:function(){

            
            if(game.input.keyboard.isDown(Phaser.Keyboard.LEFT)){
                this.car.body.angularVelocity = -200;
            }
            else if(game.input.keyboard.isDown(Phaser.Keyboard.RIGHT)){
                this.car.body.angularVelocity = 200;
            }
            else if(game.input.keyboard.isDown(Phaser.Keyboard.UP)){
               this.car.body.velocity.copyFrom(game.physics.arcade.velocityFromAngle(this.car.angle, 200));
            }
            else{
                this.car.body.angularVelocity = 0;
                 this.car.body.velocity.x =0;
                this.car.body.velocity.y = 0;
            }
},
};
game.state.add('main', mainState);  
game.state.start('main');

<script src="https://cdnjs.cloudflare.com/ajax/libs/phaser/2.4.4/phaser.min.js"></script>
<div id="cargame"></div>

如何在移动时旋转汽车 phase.js

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phaser-framework