Added starter components.
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.idea/
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target/
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>nl.andrewl</groupId>
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<artifactId>starship-arena</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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<properties>
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<maven.compiler.source>17</maven.compiler.source>
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<maven.compiler.target>17</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<!-- https://mvnrepository.com/artifact/com.google.code.gson/gson -->
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<dependency>
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<groupId>com.google.code.gson</groupId>
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<artifactId>gson</artifactId>
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<version>2.9.0</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<artifactId>maven-assembly-plugin</artifactId>
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<configuration>
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<archive>
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<manifest>
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<mainClass>nl.andrewl.starship_arena.StarshipArena</mainClass>
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</manifest>
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</archive>
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<descriptorRefs>
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<descriptorRef>jar-with-dependencies</descriptorRef>
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</descriptorRefs>
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</configuration>
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<executions>
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<execution>
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<id>make-assembly</id> <!-- this is used for inheritance merges -->
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<phase>package</phase> <!-- bind to the packaging phase -->
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<goals>
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<goal>single</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>
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package nl.andrewl.starship_arena;
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import nl.andrewl.starship_arena.model.Arena;
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import nl.andrewl.starship_arena.model.Ship;
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import nl.andrewl.starship_arena.model.ShipModel;
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import nl.andrewl.starship_arena.util.ResourceUtils;
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import nl.andrewl.starship_arena.view.ArenaWindow;
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/**
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* The main executable class which starts the program.
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*/
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public class StarshipArena {
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public static void main(String[] args) {
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ShipModel corvette = ShipModel.load(ResourceUtils.getString("/ships/corvette.json"));
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Ship s = new Ship(corvette);
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Arena arena = new Arena();
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arena.getShips().add(s);
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var window = new ArenaWindow(arena);
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window.setVisible(true);
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}
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}
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package nl.andrewl.starship_arena.model;
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import java.util.ArrayList;
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import java.util.Collection;
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/**
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* Represents the top-level model containing all objects in an arena that can
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* interact with each other.
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*/
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public class Arena {
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private final Collection<Ship> ships = new ArrayList<>();
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private final Camera camera = new Camera();
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public Collection<Ship> getShips() {
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return ships;
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}
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public Camera getCamera() {
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return camera;
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}
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}
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package nl.andrewl.starship_arena.model;
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import java.awt.geom.Point2D;
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public class Camera {
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public static final double SCALE_INTERVAL = 50.0;
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private Object focus;
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private Point2D.Float position = new Point2D.Float();
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private int scaleIncrement = 1;
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public Object getFocus() {
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return focus;
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}
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public void setFocus(Object focus) {
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this.focus = focus;
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}
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public Point2D.Float getPosition() {
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return position;
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}
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public void setPosition(Point2D.Float position) {
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this.position = position;
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}
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public int getScaleIncrement() {
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return scaleIncrement;
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}
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public void setScaleIncrement(int scaleIncrement) {
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this.scaleIncrement = scaleIncrement;
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}
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}
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package nl.andrewl.starship_arena.model;
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import java.awt.geom.Point2D;
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public class PhysicsObject {
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/**
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* The position of this object in the scene, in meters from the origin.
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* Positive x-axis goes to the right, and positive y-axis goes down.
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*/
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private final Point2D.Float position = new Point2D.Float();
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/**
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* The object's rotation in radians, from 0 to 2 PI.
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*/
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private float rotation;
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/**
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* The object's velocity, in meters per second.
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*/
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private final Point2D.Float velocity = new Point2D.Float();
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/**
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* The object's rotational speed, in radians per second.
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*/
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private float rotationSpeed;
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public Point2D.Float getPosition() {
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return position;
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}
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public float getRotation() {
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return rotation;
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}
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public void setRotation(float rotation) {
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while (rotation < 0) rotation += 2 * Math.PI;
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while (rotation > 2 * Math.PI) rotation -= 2 * Math.PI;
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this.rotation = rotation;
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}
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public Point2D.Float getVelocity() {
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return velocity;
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}
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public float getRotationSpeed() {
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return rotationSpeed;
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}
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public void setRotationSpeed(float rotationSpeed) {
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this.rotationSpeed = rotationSpeed;
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}
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public void update(double delta) {
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position.x += velocity.x * delta;
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position.y += velocity.y * delta;
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setRotation((float) (rotation + rotationSpeed * delta));
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}
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}
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package nl.andrewl.starship_arena.model;
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import nl.andrewl.starship_arena.model.ship.Gun;
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import nl.andrewl.starship_arena.model.ship.Panel;
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import nl.andrewl.starship_arena.model.ship.ShipComponent;
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import nl.andrewl.starship_arena.util.ResourceUtils;
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import java.awt.*;
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import java.util.ArrayList;
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import java.util.Collection;
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public class Ship extends PhysicsObject {
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private final String modelName;
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private final Collection<ShipComponent> components;
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private final Collection<Panel> panels;
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private final Collection<Gun> guns;
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private Color primaryColor = Color.GRAY;
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public Ship(ShipModel model) {
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this.modelName = model.getName();
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this.components = model.getComponents();
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this.panels = new ArrayList<>();
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this.guns = new ArrayList<>();
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for (var c : components) {
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c.setShip(this);
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if (c instanceof Panel p) panels.add(p);
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if (c instanceof Gun g) guns.add(g);
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}
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}
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public Ship(String modelResource) {
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this(ShipModel.load(ResourceUtils.getString(modelResource)));
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}
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public String getModelName() {
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return modelName;
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}
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public Collection<ShipComponent> getComponents() {
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return components;
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}
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public Color getPrimaryColor() {
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return primaryColor;
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}
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public float getMass() {
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float m = 0;
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for (var c : components) {
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m += c.getMass();
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}
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return m;
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}
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}
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package nl.andrewl.starship_arena.model;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import nl.andrewl.starship_arena.model.ship.ComponentDeserializer;
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import nl.andrewl.starship_arena.model.ship.GeometricComponent;
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import nl.andrewl.starship_arena.model.ship.Gun;
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import nl.andrewl.starship_arena.model.ship.ShipComponent;
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import java.util.Collection;
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public class ShipModel {
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private String name;
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private Collection<ShipComponent> components;
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public String getName() {
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return name;
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}
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public Collection<ShipComponent> getComponents() {
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return components;
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}
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/**
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* Normalizes the geometric properties of the components such that the ship
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* model's components are centered around (0, 0).
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* TODO: Consider scaling?
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*/
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private void normalizeComponents() {
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float minX = Float.MAX_VALUE;
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float maxX = Float.MIN_VALUE;
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float minY = Float.MAX_VALUE;
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float maxY = Float.MIN_VALUE;
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for (var c : components) {
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if (c instanceof GeometricComponent g) {
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for (var p : g.getPoints()) {
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minX = Math.min(minX, p.x);
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maxX = Math.max(maxX, p.x);
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minY = Math.min(minY, p.y);
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maxY = Math.max(maxY, p.y);
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}
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}
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}
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final float width = maxX - minX;
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final float height = maxY - minY;
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final float offsetX = -minX - width / 2;
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final float offsetY = -minY - height / 2;
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// Shift all components to the top-left.
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for (var c : components) {
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if (c instanceof GeometricComponent g) {
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for (var p : g.getPoints()) {
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p.x += offsetX;
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p.y += offsetY;
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}
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} else if (c instanceof Gun g) {
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g.getLocation().x += offsetX;
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g.getLocation().y += offsetY;
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}
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}
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}
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public static ShipModel load(String json) {
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Gson gson = new GsonBuilder()
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.registerTypeAdapter(ShipComponent.class, new ComponentDeserializer())
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.create();
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ShipModel model = gson.fromJson(json, ShipModel.class);
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model.normalizeComponents();
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return model;
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}
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}
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package nl.andrewl.starship_arena.model.ship;
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/**
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* A cockpit represents the control point of the ship.
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*/
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public class Cockpit extends GeometricComponent {
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}
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@ -0,0 +1,24 @@
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package nl.andrewl.starship_arena.model.ship;
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import com.google.gson.*;
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import java.lang.reflect.Type;
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/**
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* Custom deserializer that's used to deserialize components based on their
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* "type" property.
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*/
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public class ComponentDeserializer implements JsonDeserializer<ShipComponent> {
|
||||
@Override
|
||||
public ShipComponent deserialize(JsonElement jsonElement, Type type, JsonDeserializationContext ctx) throws JsonParseException {
|
||||
JsonObject obj = jsonElement.getAsJsonObject();
|
||||
String componentTypeName = obj.get("type").getAsString();
|
||||
Type componentType = switch (componentTypeName) {
|
||||
case "panel" -> Panel.class;
|
||||
case "cockpit" -> Cockpit.class;
|
||||
case "gun" -> Gun.class;
|
||||
default -> throw new JsonParseException("Invalid ship component type: " + componentTypeName);
|
||||
};
|
||||
return ctx.deserialize(obj, componentType);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,15 @@
|
|||
package nl.andrewl.starship_arena.model.ship;
|
||||
|
||||
import java.awt.geom.Point2D;
|
||||
import java.util.List;
|
||||
|
||||
/**
|
||||
* Represents a component of a ship that can be drawn as a geometric primitive.
|
||||
*/
|
||||
public abstract class GeometricComponent extends ShipComponent {
|
||||
private List<Point2D.Float> points;
|
||||
|
||||
public List<Point2D.Float> getPoints() {
|
||||
return points;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
package nl.andrewl.starship_arena.model.ship;
|
||||
|
||||
import java.awt.geom.Point2D;
|
||||
|
||||
public class Gun extends ShipComponent {
|
||||
private String name;
|
||||
private Point2D.Float location;
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public Point2D.Float getLocation() {
|
||||
return location;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
package nl.andrewl.starship_arena.model.ship;
|
||||
|
||||
/**
|
||||
* A simple structural panel that makes up all or part of a ship's body.
|
||||
*/
|
||||
public class Panel extends GeometricComponent {
|
||||
private String name;
|
||||
}
|
||||
|
|
@ -0,0 +1,27 @@
|
|||
package nl.andrewl.starship_arena.model.ship;
|
||||
|
||||
import nl.andrewl.starship_arena.model.Ship;
|
||||
|
||||
/**
|
||||
* Represents the top-level component information for any part of a ship.
|
||||
*/
|
||||
public class ShipComponent {
|
||||
/**
|
||||
* The ship that this component belongs to.
|
||||
*/
|
||||
private transient Ship ship;
|
||||
|
||||
private float mass;
|
||||
|
||||
public Ship getShip() {
|
||||
return ship;
|
||||
}
|
||||
|
||||
public void setShip(Ship ship) {
|
||||
this.ship = ship;
|
||||
}
|
||||
|
||||
public float getMass() {
|
||||
return mass;
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,21 @@
|
|||
package nl.andrewl.starship_arena.util;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.io.UncheckedIOException;
|
||||
|
||||
public class ResourceUtils {
|
||||
public static InputStream get(String name) {
|
||||
InputStream in = ResourceUtils.class.getResourceAsStream(name);
|
||||
if (in == null) throw new UncheckedIOException(new IOException("Could not load resource: " + name));
|
||||
return in;
|
||||
}
|
||||
|
||||
public static String getString(String name) {
|
||||
try (var in = get(name)) {
|
||||
return new String(in.readAllBytes());
|
||||
} catch (IOException e) {
|
||||
throw new UncheckedIOException(e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,64 @@
|
|||
package nl.andrewl.starship_arena.view;
|
||||
|
||||
import nl.andrewl.starship_arena.model.Arena;
|
||||
import nl.andrewl.starship_arena.model.Camera;
|
||||
|
||||
import javax.swing.*;
|
||||
import java.awt.*;
|
||||
import java.awt.geom.AffineTransform;
|
||||
|
||||
public class ArenaPanel extends JPanel {
|
||||
private final Arena arena;
|
||||
|
||||
private final ShipRenderer shipRenderer = new ShipRenderer();
|
||||
|
||||
public ArenaPanel(Arena arena) {
|
||||
this.arena = arena;
|
||||
this.addMouseWheelListener(e -> {
|
||||
arena.getCamera().setScaleIncrement(arena.getCamera().getScaleIncrement() + e.getWheelRotation());
|
||||
repaint();
|
||||
});
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void paintComponent(Graphics g) {
|
||||
super.paintComponent(g);
|
||||
Graphics2D g2 = (Graphics2D) g;
|
||||
g2.setColor(Color.BLACK);
|
||||
g2.fillRect(0, 0, getWidth(), getHeight());
|
||||
|
||||
AffineTransform originalTx = g2.getTransform();
|
||||
AffineTransform tx = new AffineTransform();
|
||||
|
||||
Camera cam = arena.getCamera();
|
||||
|
||||
double translateX = (double) getWidth() / 2;
|
||||
double translateY = (double) getHeight() / 2;
|
||||
if (cam.getFocus() == null) {
|
||||
translateX += cam.getPosition().x;
|
||||
translateY += cam.getPosition().y;
|
||||
}
|
||||
|
||||
double scale = 1 * Camera.SCALE_INTERVAL;
|
||||
if (cam.getScaleIncrement() > 0) {
|
||||
scale = cam.getScaleIncrement() * Camera.SCALE_INTERVAL;
|
||||
} else if (cam.getScaleIncrement() < 0) {
|
||||
scale = 1.0 / Math.abs(cam.getScaleIncrement() * Camera.SCALE_INTERVAL);
|
||||
}
|
||||
|
||||
tx.translate(translateX, translateY);
|
||||
tx.scale(scale, scale);
|
||||
g2.setTransform(tx);
|
||||
|
||||
for (var s : arena.getShips()) {
|
||||
shipRenderer.render(s, g2);
|
||||
}
|
||||
|
||||
g2.setTransform(originalTx);
|
||||
|
||||
g2.setColor(Color.GREEN);
|
||||
g2.fillRect(0, 0, 20, 20);
|
||||
g2.setColor(Color.BLUE);
|
||||
g2.fillRect(getWidth() - 20, getHeight() - 20, 20, 20);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
package nl.andrewl.starship_arena.view;
|
||||
|
||||
import nl.andrewl.starship_arena.model.Arena;
|
||||
import nl.andrewl.starship_arena.util.ResourceUtils;
|
||||
|
||||
import javax.imageio.ImageIO;
|
||||
import javax.swing.*;
|
||||
import java.awt.*;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
|
||||
public class ArenaWindow extends JFrame {
|
||||
private final ArenaPanel arenaPanel;
|
||||
|
||||
public ArenaWindow(Arena arena) {
|
||||
super("Starship Arena");
|
||||
setDefaultCloseOperation(EXIT_ON_CLOSE);
|
||||
setUndecorated(true);
|
||||
try {
|
||||
GraphicsDevice device = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
|
||||
device.setFullScreenWindow(this);
|
||||
setPreferredSize(new Dimension(device.getDisplayMode().getWidth(), device.getDisplayMode().getHeight()));
|
||||
} catch (HeadlessException e) {
|
||||
System.err.println("Cannot start the program on systems without a screen.");
|
||||
System.exit(1);
|
||||
}
|
||||
try {
|
||||
InputStream in = ResourceUtils.get("/img/icon.png");
|
||||
setIconImage(ImageIO.read(in));
|
||||
in.close();
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
|
||||
arenaPanel = new ArenaPanel(arena);
|
||||
add(arenaPanel);
|
||||
pack();
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
package nl.andrewl.starship_arena.view;
|
||||
|
||||
import java.awt.*;
|
||||
|
||||
public interface Renderer<T> {
|
||||
void render(T obj, Graphics2D g);
|
||||
}
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
package nl.andrewl.starship_arena.view;
|
||||
|
||||
import nl.andrewl.starship_arena.model.Ship;
|
||||
import nl.andrewl.starship_arena.model.ship.Cockpit;
|
||||
import nl.andrewl.starship_arena.model.ship.GeometricComponent;
|
||||
|
||||
import java.awt.*;
|
||||
import java.awt.geom.Path2D;
|
||||
|
||||
public class ShipRenderer implements Renderer<Ship> {
|
||||
@Override
|
||||
public void render(Ship ship, Graphics2D g) {
|
||||
for (var c : ship.getComponents()) {
|
||||
if (c instanceof GeometricComponent geo) {
|
||||
Path2D.Float path = new Path2D.Float();
|
||||
var first = geo.getPoints().get(0);
|
||||
path.moveTo(first.x, first.y);
|
||||
for (int i = 0; i < geo.getPoints().size(); i++) {
|
||||
var point = geo.getPoints().get(i);
|
||||
path.lineTo(point.x, point.y);
|
||||
}
|
||||
if (geo instanceof Cockpit) {
|
||||
g.setColor(new Color(0f, 0f, 0.5f, 0.5f));
|
||||
} else {
|
||||
g.setColor(ship.getPrimaryColor());
|
||||
}
|
||||
g.fill(path);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 17 KiB |
|
|
@ -0,0 +1,52 @@
|
|||
{
|
||||
"name": "Corvette",
|
||||
"components": [
|
||||
{
|
||||
"type": "panel",
|
||||
"name": "Main Fuselage",
|
||||
"mass": 5000,
|
||||
"points": [
|
||||
{"x": 0.3, "y": 0.6},
|
||||
{"x": 0.2, "y": 0.1},
|
||||
{"x": 0.1, "y": 0.5},
|
||||
{"x": 0.2, "y": 0.8},
|
||||
{"x": 0.8, "y": 0.8},
|
||||
{"x": 0.9, "y": 0.5},
|
||||
{"x": 0.8, "y": 0.1},
|
||||
{"x": 0.7, "y": 0.6}
|
||||
]
|
||||
},
|
||||
{
|
||||
"type": "panel",
|
||||
"name": "Front Cargo Bay",
|
||||
"mass": 1000,
|
||||
"points": [
|
||||
{"x": 0.4, "y": 0.2},
|
||||
{"x": 0.35, "y": 0.6},
|
||||
{"x": 0.65, "y": 0.6},
|
||||
{"x": 0.6, "y": 0.2}
|
||||
]
|
||||
},
|
||||
{
|
||||
"type": "cockpit",
|
||||
"mass": 800,
|
||||
"points": [
|
||||
{"x": 0.5, "y": 0.0},
|
||||
{"x": 0.4, "y": 0.2},
|
||||
{"x": 0.6, "y": 0.2}
|
||||
]
|
||||
},
|
||||
{
|
||||
"type": "gun",
|
||||
"name": "Port-Side Machine Gun",
|
||||
"mass": 500,
|
||||
"location": {"x": 0.15, "y": 0.4}
|
||||
},
|
||||
{
|
||||
"type": "gun",
|
||||
"name": "Starboard-Side Machine Gun",
|
||||
"mass": 500,
|
||||
"location": {"x": 0.85, "y": 0.4}
|
||||
}
|
||||
]
|
||||
}
|
||||
Loading…
Reference in New Issue