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- package ui.view;
- import java.awt.Color;
- import java.awt.Dimension;
- import java.awt.Graphics;
- import java.awt.Graphics2D;
- import java.awt.RenderingHints;
- import java.awt.ScrollPane;
- import java.awt.event.MouseWheelEvent;
- import java.awt.event.MouseWheelListener;
- import java.util.ArrayList;
- import javax.swing.JPanel;
- import javax.swing.JScrollPane;
- import classes.Constants;
- import classes.HolonBody;
- import classes.HolonObject;
- import classes.SubNet;
- import ui.controller.Control;
- import ui.model.Model;
- public class HolonCanvas extends JPanel implements MouseWheelListener {
- /**
- *
- */
- private static final long serialVersionUID = 1L;
- // Rendering
- private Graphics2D g2;
- // Ball objects
- private ArrayList<HolonBody> bodies = new ArrayList<>();
- private int subCount;
- // Frames
- private int currentFrameRate;
- long previousTime = System.currentTimeMillis();
- long currentTime = previousTime;
- long elapsedTime;
- long totalElapsedTime = 0;
- int frameCount = 0;
- private Dimension center;
- private ArrayList<SubNet> subnets;
- private Control controller;
- private Model model;
- public HolonCanvas(Model mod, Control control) {
- // Wire up Events
- this.controller = control;
- this.model = mod;
- subnets = controller.getSimManager().getSubNets();
- subCount = subnets.size();
- previousTime = System.currentTimeMillis();
- currentTime = previousTime;
- totalElapsedTime = 0;
- frameCount = 0;
- this.addMouseWheelListener(this);
- }
- // Start Render and Update Threads
- public void paintComponent(Graphics g) {
- super.paintComponent(g);
- // add new colors if necessary
- for (int i = 0; i < controller.getSimManager().getSubNets().size(); i++) {
- if (model.getSubNetColors().size() - 1 < i) {
- controller.addSubNetColor(new Color((int) (Math.random() * 255), (int) (Math.random() * 255),
- (int) (Math.random() * 255)));
- }
- }
- if (!controller.getSimManager().getSubNets().equals(subnets)) {
- subnets = controller.getSimManager().getSubNets();
- subCount = subnets.size();
- calcCenter();
- if (bodies.isEmpty()) {
- createBodies(subCount);
- } else {
- addNewBodies(subCount);
- }
- }
- currentTime = System.currentTimeMillis();
- elapsedTime = (currentTime - previousTime); // elapsed time in seconds
- totalElapsedTime += elapsedTime;
- if (totalElapsedTime > 1000) {
- currentFrameRate = frameCount;
- frameCount = 0;
- totalElapsedTime = 0;
- }
- updateGame(elapsedTime / 1000f);
- render(g);
- try {
- // Thread.sleep(getFpsDelay(maxFrameRate));
- Thread.sleep(5);
- } catch (Exception e) {
- e.printStackTrace();
- }
- previousTime = currentTime;
- frameCount++;
- repaint();
- }
- // updates the bodies according to the changes of subnets
- private void addNewBodies(int subCount) {
- ArrayList<HolonBody> newBodies = new ArrayList<>();
- for (int i = 0; i < subCount; i++) {
- for (int j = 0; j < bodies.size(); j++) {
- if (model.getSubNetColors().get(i) == bodies.get(j).getColor()) {
- bodies.get(j).setRadius(subnets.get(i).getObjects().size() * 5 + 10);
- bodies.get(j).setMass(subnets.get(i).getObjects().size() * 5 + 10);
- newBodies.add(bodies.get(j));
- newBodies.get(i).setId(i);
- break;
- }
- }
- }
- bodies = newBodies;
- for (int i = bodies.size(); i < subCount; i++) {
- HolonBody temp = new HolonBody((center.width + 1) + (-1 * i), (center.height + 1) + (-1 * i),
- subnets.get(i).getObjects().size() * 5 + 10, subnets.get(i).getObjects().size() * 5 + 10,
- model.getSubNetColors().get(i));
- temp.setId(i);
- bodies.add(temp);
- }
- }
- // creates the first round of bodies
- private void createBodies(int subCount) {
- for (int i = 0; i < subCount; i++) {
- HolonBody temp = new HolonBody((center.width + 1) + (-1 * i), (center.height + 1) + (-1 * i),
- subnets.get(i).getObjects().size() * 5 + 10, subnets.get(i).getObjects().size() * 5 + 10,
- model.getSubNetColors().get(i));
- temp.setId(i);
- bodies.add(temp);
- }
- }
- public void render(Graphics g) {
- this.g2 = (Graphics2D) g;
- this.g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
- // Render Background
- this.g2.setColor(Color.WHITE);
- this.g2.fillRect(0, 0, getWidth(), getHeight());
- // Render Game Objects
- for (int i = 0; i < subCount; i++) {
- bodies.get(i).setRadius((subnets.get(bodies.get(i).getId()).getObjects().size() * 5 + 10)
- * controller.getHolonBodyScale() / 100);
- bodies.get(i).draw(this.g2);
- }
- }
- public void updateGame(float elapsedSeconds) {
- // step the position of movable objects based off their velocity/gravity
- // and elapsedTime
- calcCenter();
- for (int i = 0; i < subCount; i++) {
- bodies.get(i).position
- .setX((float) (bodies.get(i).position.getX() + (bodies.get(i).velocity.getX() * (elapsedSeconds))
- - ((bodies.get(i).position.getX() - center.getWidth()) / 100)));
- bodies.get(i).position
- .setY((float) (bodies.get(i).position.getY() + (bodies.get(i).velocity.getY() * (elapsedSeconds))
- - ((bodies.get(i).position.getY() - center.getHeight()) / 100)));
- if (Math.abs(bodies.get(i).velocity.getX()) < Constants.epsilon)
- bodies.get(i).velocity.setX(0);
- if (Math.abs(bodies.get(i).velocity.getY()) < Constants.epsilon)
- bodies.get(i).velocity.setY(0);
- }
- checkCollisions();
- }
- // Insertion sort for Sweep and Prune
- public void insertionSort(ArrayList<HolonBody> a) {
- for (int p = 1; p < subCount; p++) {
- Comparable tmp = a.get(p);
- int j = p;
- for (; j > 0 && tmp.compareTo(a.get(j - 1)) < 0; j--)
- a.set(j, a.get(j - 1));
- a.set(j, (HolonBody) tmp);
- }
- }
- public void checkCollisions() {
- insertionSort(bodies);
- for (int i = 0; i < subCount; i++) {
- // Ball to Ball collision
- for (int j = i + 1; j < subCount; j++) {
- if ((bodies.get(i).position.getX() + bodies.get(i).getRadius()) < (bodies.get(j).position.getX()
- - bodies.get(j).getRadius()))
- break;
- if ((bodies.get(i).position.getY() + bodies.get(i).getRadius()) < (bodies.get(j).position.getY()
- - bodies.get(j).getRadius())
- || (bodies.get(j).position.getY() + bodies.get(j).getRadius()) < (bodies.get(i).position.getY()
- - bodies.get(i).getRadius()))
- continue;
- bodies.get(i).resolveCollision(bodies.get(j));
- }
- }
- }
- public void calcCenter() {
- center = this.getSize();
- center.height /= 2;
- center.width /= 2;
- }
- @Override
- public void mouseWheelMoved(MouseWheelEvent e) {
- controller.setHolonBodyScale(model.getHolonBodyScale() + (-e.getScrollAmount() * e.getWheelRotation()));
- }
- }
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