29 lines
762 B
JavaScript
29 lines
762 B
JavaScript
// class camera extends THREE.PerspectiveCamera
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var Camera = function() {
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THREE.PerspectiveCamera.apply(this, arguments);
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this.theta = 0;
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this.position.x = Camera.DISTANCE_X;
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this.position.z = Camera.DISTANCE_Z;
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this.up = new THREE.Vector3(0,0,1);
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this.target = new THREE.Vector3();
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}
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Camera.prototype = Object.create(THREE.PerspectiveCamera.prototype);
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// Update function
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Camera.prototype.update = function(time) {
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this.theta += 0.01 * time / 20;
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this.position.x = Camera.DISTANCE_X*Math.cos(this.theta);
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this.position.y = Camera.DISTANCE_X*Math.sin(this.theta);
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}
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// Look function
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Camera.prototype.look = function() {
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this.lookAt(this.target);
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}
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// Static members
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Camera.DISTANCE_X = 1000;
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Camera.DISTANCE_Z = 300;
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