74 lines
1.5 KiB
Plaintext
74 lines
1.5 KiB
Plaintext
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import teilchen.BehaviorParticle;
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import mathematik.Vector3f;
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class Creature extends BehaviorParticle {
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float _scale;
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float _rotation;
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public Creature(int x, int y, int r) {
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super();
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position().set(x, y);
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maximumInnerForce(100);
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radius(r);
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_scale = 1.0;
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_rotation = 0;
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}
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///////////////////////////////////
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// display method
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// + applies transformations
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// + draws shape of the subclass
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public void display() {
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pushMatrix();
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translate(position().x, position().y);
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if(_rotation != 0)
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rotate(_rotation);
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else
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rotate(getRotation());
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scale(_scale);
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draw_shape();
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popMatrix();
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}
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/////////////////////////////////
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// (absolute) transforms
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public void rotate_to(float r) {
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_rotation = r;
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}
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public void scale_to(float s) {
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_scale = s;
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}
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///////////////////////////////////
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// (incremental) transforms
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public void rotate_increment(float r) {
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_rotation += r;
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}
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public void scale_increment(float s) {
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_scale += s;
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}
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private float getRotation() {
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if(velocity().isNaN() || velocity().magnitude() == 0) return 0;
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Vector3f v = new Vector3f(-1, 0, 0);
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return velocity().angle(v);
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}
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///////////////////////////////////
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// ** METHODS FOR SUBCLASSES **
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// draws a (subclass) shape (in own coordinates)
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public void draw_shape() {}
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// evaluates if mx and my are inside the (subclass) shape
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public boolean inside(int mx, int my){return false;}
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};
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