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POHow to see the Bullets I'm shooting on Canvas?
 

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  1. POHow to see the Bullets I'm shooting on Canvas?
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    <p>Again im having a Problem with my Canvas. I'm currently programming a Javascript Space Shooter. </p> <p>I created a Bullet Class and want the Spaceship to be able to shoot Bullets. The Problem is: There a no Errors but also, no Bullets. I'm not totally sure if they are just not drawn or I just can't see them.</p> <p>If you could help me, you would really help me a lot:</p> <p>The relevant Files (main.js, held.js) i've uploaded to my Git: <a href="https://github.com/nemoxdelight/First_Game" rel="nofollow">https://github.com/nemoxdelight/First_Game</a></p> <p>Sorry for the German Comments, but it makes it a lot easier for me sometimes :P</p> <p>I think the Problem is somewhere in here in the held.js:</p> <pre><code>//Kugeln this.leerTaste = false; this.isShooting = false; this.kugeln = []; this.aktuelleKugel = 0; //Wenn wir einen neuen Held erstellen, werden 20 Schuss "geladen" for (var i = 0; i &lt; 20; i++) { this.kugeln[this.kugeln.length] = new Kugel(); } } //Held Objekt Held.prototype.draw = function() { this.tasteCheck(); this.held_nase_x = this.held_x + 10; this.held_nase_y = this.held_y; this.schussCheck(); this.kugeln_zeichnen(); ctx.beginPath(); ctx.fillStyle = this.farbe_ball; ctx.arc(this.held_x, this.held_y, this.groese_ball, 0, Math.PI * 2, true); ctx.arc(this.held_x - 17, this.held_y, this.groese_ball - 3, 0, Math.PI * 2, true); ctx.shadowBlur = this.blur_ball; ctx.shadowColor = this.farbe_blur_ball; ctx.closePath(); ctx.fill(); ctx.shadowColor = "transparent"; }; Held.prototype.tasteCheck = function() { if (this.hochTaste == true) { this.held_y -= this.speed; } if (this.rechtsTaste == true) { this.held_x += this.speed; } if (this.linksTaste == true) { this.held_x -= this.speed; } if (this.runterTaste == true) { this.held_y += this.speed; } }; //Da unsere Kugeln nur in x-Richtung vom Held aus fliegen, sind sie alle größer als 0. Der Ursprung findet sich beim Held. Held.prototype.kugeln_zeichnen = function() { for (var i = 0; i &lt; this.kugeln.length; i++) { if (this.kugeln[i].held_x &gt;= 0) { this.kugeln[i].draw(); } } } Held.prototype.schussCheck = function() { if (this.leerTaste &amp;&amp; !this.isShooting) { this.isShooting = true; this.kugeln[this.aktuelleKugel].geschossen(this.held_nase_x, this.held_nase_y); this.aktuelleKugel++; //Wiederverwendne der Kugeln if (this.aktuelleKugel &gt;= this.kugeln.length) { this.aktuelleKugel = 0; } } else if (!this.leerTaste) { this.isShooting = false; } } //KUGEL FUNKTIONEN function Kugel() { this.groese_kugel = 3; //Kugeln aufbewahren this.drawX = -20; this.drawY = 0; } Kugel.prototype.draw = function() { this.drawX += 3; ctx.beginPath(); ctx.fillStyle = '#ff99ff'; ctx.arc(this.drawX, this.drawY, this.groese_kugel, 0, Math.PI * 2, true); ctx.closePath(); ctx.fill(); if (this.drawX &gt; width) { this.drawX = -20; } }; Kugel.prototype.geschossen = function(startX, startY) { //Sagt an was erlaubt ist. this.drawX = startX; this.drawY = startY; } </code></pre>
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