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98 lines
2.6 KiB
98 lines
2.6 KiB
package controller;
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import playground.*;
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import gameobjects.*;
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import java.util.*;
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import java.awt.event.*;
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import java.io.File;
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/**
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* An EgoController which cannot move through obstacle objects (is collission aware). Only respects
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* GameObjects that have the String 'obstacle' in their name.
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*
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*/
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public class CollisionAwareEgoController extends EgoController {
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double savex, savey, savevx, savevy;
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double lastSpaceAt = -1;
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private File shot = null;
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/**
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*
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* @param egoRad radius of ego object to be used.
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*/
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public CollisionAwareEgoController(double egoRad) {
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super(egoRad);
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}
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/**
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*
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* @param egoRad radius of ego object to be used.
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* @param soundOnShot WAV file to be played on shot
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*/
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public CollisionAwareEgoController(double egoRad, File soundOnShot) {
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super(egoRad);
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this.shot = soundOnShot;
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}
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/**
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* Copies current values of x,y position and speed vx,vy into attributes. These can be restored by call to {@link #restoreDynamicState()}.
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*/
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public void saveDynamicState() {
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this.savex = this.getX();
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this.savey = this.getY();
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this.savevx = this.getVX();
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this.savevy = this.getVY();
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}
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/**
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* Restores formally saved values of x,y position and speed vx,vy from attributes back to the ego object.
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* These values should have been stored before by a call to {@link #saveDynamicState()}, otherwise all values will be 0.00.
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*/
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public void restoreDynamicState() {
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this.setX(savex);
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this.setY(savey);
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this.setVX(savevx);
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this.setVY(savevy);
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}
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/**
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* extends parent class implementation by a check whether or not the ego object collides with any other "obstacle" object.
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* If yes, the position stays fixed (by using {@link #saveDynamicState()} and {@link #restoreDynamicState()}.
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*/
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public boolean stopObject() {
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boolean s = super.stopObject();
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Playground pg = this.getPlayground();
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LinkedList<GameObject> obstacles = pg.collectObjects("obstacle", false);
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this.saveDynamicState();
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this.applySpeedVector();
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for (GameObject ob : obstacles) {
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if (ob.collisionDetection(this.gameObject)) {
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this.restoreDynamicState();
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return true;
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}
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}
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this.restoreDynamicState();
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return s;
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}
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/**
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* calls superclass {@link EgoController#onSpace(KeyEvent, GameObject)} only, if the time elapsed since last pressing of space is above 0.1 ms.
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*/
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public void onSpace(KeyEvent e, GameObject ego) {
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double cgt = ego.getGameTime();
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if ((cgt - this.lastSpaceAt) > 0.1) {
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super.onSpace(e, ego);
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Music.music(this.shot);
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}
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}
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}
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