vectors, time, new rendering methods, all o dat yo

src/diveengine2d/DebugSettings.java

@@ -0,0 +1,32 @@
+package diveengine2d;
+
+import java.awt.Graphics2D;
+
+import java.awt.Color;
+
+public class DebugSettings {
+	public static int debugLevel = 0;
+	public static Color backgroundColor = new Color(250, 250, 250);
+	public static Color foregroundColor = new Color(25, 118, 210);
+	
+	public static void render(Graphics2D g) {
+		if(debugLevel == 0) return;
+		g.setColor(backgroundColor);
+		
+		int y = 20;
+		int x = 20;
+		g.fillRect(x, y, 140, debugLevel == 1 ? 72 : 100);
+		g.setColor(foregroundColor);
+		
+		x += 10;
+		y += 20;
+		int yOff = 20;
+		g.drawString("" + Time.FPS, x, y);
+		y += yOff;
+		g.drawString("" + Time.timedFramesCurrent, x, y);
+		y += yOff;
+		g.drawString("" + SceneManager.entityCount(), x, y);
+		y += yOff;
+		
+	}
+}

src/diveengine2d/DiveMath.java

@@ -0,0 +1,32 @@
+package diveengine2d;
+
+public class DiveMath {
+
+	public static boolean inTriangle(Vector2 a, Vector2 b, Vector2 c, Vector2 p) {
+		return sameSide(p, a, b, c) && sameSide(p, b, c, a) && sameSide(p, c, a, b);
+	}
+	
+	public static boolean sameSide(Vector2 p1, Vector2 p2, Vector2 a, Vector2 b) {
+		Vector2 bma = b.subtract(a);
+		Vector2 p1ma = p1.subtract(a);
+		Vector2 p2ma = p2.subtract(a);
+
+		float cp1 = bma.x*p1ma.y-bma.y*p1ma.x;
+		float cp2 = bma.x*p2ma.y-bma.y*p2ma.x;
+		
+		return cp1/cp2 >= 0;
+	}
+	
+	/*
+	function SameSide(p1,p2, a,b)
+    cp1 = CrossProduct(b-a, p1-a)
+    cp2 = CrossProduct(b-a, p2-a)
+    if DotProduct(cp1, cp2) >= 0 then return true
+    else return false
+
+function PointInTriangle(p, a,b,c)
+    if SameSide(p,a, b,c) and SameSide(p,b, a,c)
+        and SameSide(p,c, a,b) then return true
+    else return false
+	*/
+}

src/diveengine2d/Engine.java

@@ -3,8 +3,8 @@ package diveengine2d;
 import java.awt.Canvas;
 import java.awt.Color;
 import java.awt.Dimension;
-import java.awt.Graphics;
 import java.awt.Graphics2D;
+import java.awt.RenderingHints;
 import java.awt.image.BufferStrategy;
 import java.io.File;
 import java.nio.charset.Charset;
@@ -19,7 +19,7 @@ public class Engine extends Canvas {
 	public static int WIDTH, HEIGHT;
 	public static String startScene = null;
 	public static String name = null;
-	public static BufferStrategy bs;
+	public static BufferStrategy bs = null;
 
 	public Engine(String gameFolder) {
 
@@ -60,26 +60,62 @@ public class Engine extends Canvas {
 		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		this.requestFocus();
 		this.addKeyListener(new Input());
+		this.addMouseMotionListener(new Input());
+		this.addMouseListener(new Input());
 		
 		createBufferStrategy(2);
 		bs = getBufferStrategy();
 		
+		Time.nanos = System.nanoTime();
+		
+		
 		while(true) {
-			long startTime = System.currentTimeMillis();
+			
-			updateScene();
+			Time.startTime = System.currentTimeMillis();
-			Graphics2D g = (Graphics2D)bs.getDrawGraphics();
+			if (System.currentTimeMillis() > Time.nextSecond) {
-			render(g);
+				Time.nextSecond += 1000;
-			bs.show();
+				Time.FPS = Time.framesInCurrentSecond;
-			int elapsed = (int)(System.currentTimeMillis() - startTime);
+				Time.framesInCurrentSecond = 0;
-			try{
+				System.out.println("Timed Frames: " + Time.timedFramesCurrent);
-				Thread.sleep(17 - elapsed);
+				System.out.println("Calculated Frames: " + Time.FPS);
-			}catch(Exception e) {
+				Time.timedFramesCurrent = 0;
-				
 			}
+			Time.framesInCurrentSecond++;
+
+			render();
+			updateScene();
+			Time.tickTime = (System.nanoTime() - Time.nanos)/16640000d;
+			Time.deltaTime = Time.tickTime * Time.timeScale;
+			Time.nanos = System.nanoTime();
+//			System.out.println("dTime: " + Time.deltaTime);
+			
+			Time.timedFramesCurrent += Time.deltaTime;
+			
 		}
 
 	}
 	
+	public void render() {
+		Graphics2D g = (Graphics2D)bs.getDrawGraphics();
+		g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+		g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+		render(g);
+		DebugSettings.render(g);
+
+		Vector2 a = new Vector2(512, 100);
+		Vector2 b = new Vector2(256, 200);
+		Vector2 c = new Vector2(768, 400);
+		Vector2 mouse = new Vector2(Input.mouseX, Input.mouseY);
+		
+		g.setColor(DiveMath.inTriangle(a, b, c, mouse) ? Color.GREEN : Color.RED);
+
+		g.fillOval((int)a.x, (int)a.y, 10, 10);
+		g.fillOval((int)b.x, (int)b.y, 10, 10);
+		g.fillOval((int)c.x, (int)c.y, 10, 10);
+		
+		bs.show();
+	}
+	
 	private void updateScene() {
 		SceneManager.updateAll();
 	}
@@ -112,7 +148,7 @@ public class Engine extends Canvas {
 			parts[1] = parts[1].trim();
 
 			if (parts[0].equals("StartScene")) {
-				this.startScene = parts[1];
+				Engine.startScene = parts[1];
 			} else if (parts[0].equals("Resolution")) {
 
 				String[] resparts = parts[1].split("x");
@@ -143,7 +179,6 @@ public class Engine extends Canvas {
 		System.out.println("Loaded Config File...");
 
 	}
-
 	private void render(Graphics2D g) {
 		SceneManager.render(g);
 		g.setColor(Color.BLACK);

src/diveengine2d/Entity.java

@@ -1,4 +1,5 @@
 package diveengine2d;
+import java.awt.Graphics2D;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -10,6 +11,7 @@ public class Entity {
 	
 	public List<DiveScript> components = new ArrayList<DiveScript>();
 	
+	@SuppressWarnings("unchecked") //HACK because it is checked, java is just duuuumb
 	public <T extends DiveScript> T getComponent(Class<T> componentType) {
 		for(DiveScript script : components) {
 			if(script.getClass().isAssignableFrom(componentType)) {
@@ -36,4 +38,8 @@ public class Entity {
 	public void addComponent(DiveScript component) {
 		components.add(component);
 	}
+	
+	public void render(Graphics2D g) {
+		if(DebugSettings.debugLevel > 0) g.drawString("" + x + ", " + y, x, y - 2);
+	}
 }

src/diveengine2d/Input.java

@@ -2,13 +2,17 @@ package diveengine2d;
 
 import java.awt.event.KeyEvent;
 import java.awt.event.KeyListener;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
 import java.util.ArrayList;
 import java.util.List;
 
-public class Input implements KeyListener{
+public class Input implements KeyListener, MouseListener, MouseMotionListener{
 	
 	private static boolean[] keys = new boolean[512];
 	private static List<KeyListener> listeners = new ArrayList<KeyListener>();
+	public static int mouseX, mouseY;
 	
 	public static void addKeyListener(KeyListener listener) {
 		listeners.add(listener);
@@ -36,4 +40,46 @@ public class Input implements KeyListener{
 		keys[e.getKeyCode()] = false;
 		for(KeyListener l : listeners) l.keyReleased(e);
 	}
+
+	@Override
+	public void mouseClicked(MouseEvent e) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void mouseEntered(MouseEvent e) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void mouseExited(MouseEvent e) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void mousePressed(MouseEvent e) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void mouseReleased(MouseEvent e) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void mouseDragged(MouseEvent e) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void mouseMoved(MouseEvent e) {
+		mouseX = e.getX();
+		mouseY = e.getY();
+	}
 }

src/diveengine2d/RectRenderer.java

@@ -2,6 +2,7 @@ package diveengine2d;
 
 import java.awt.Color;
 import java.awt.Graphics2D;
+import java.awt.Polygon;
 
 public class RectRenderer extends DiveScript{
 	
@@ -12,10 +13,18 @@ public class RectRenderer extends DiveScript{
 		name = "Rectangle Renderer";
 	}
 	
+	float i = 0;
 	public void render(Graphics2D g) {
+		//g.rotate(Math.toRadians(i+=Time.deltaTime));
 		g.setColor(color);
-		g.fillRect((int)entity.x, (int)entity.y, width, height);
+		Polygon p = new Polygon(new int[]{0, width, width, 0}, new int[]{0, 0, height, height}, 4);
-		//System.out.println("" + entity.x + " " + entity.y);
+		for(int i = 0; i < p.npoints; i ++) {
-		g.drawString("" + Time.deltaTime, 100, 100);
+			
+		}
+		p.translate((int)entity.x, (int)entity.y);
+		g.fillPolygon(p);
+		
+		//g.fillRect((int)entity.x, (int)entity.y, width, height);
+		//g.rotate(Math.toRadians(-i));
 	}
 }

src/diveengine2d/RigidBody.java

@@ -1,17 +1,36 @@
 package diveengine2d;
 
+import java.awt.Color;
+import java.awt.Graphics2D;
+
 public class RigidBody extends DiveScript{
-	
+
+	private static Color xAxisColor = new Color(244, 67, 54); //A500 red
+	private static Color yAxisColor = new Color(33, 150, 243); //A500 blue
+	private static Color debugColor = new Color(76, 175, 80); //A500 green
 	public double dx, dy, drot;
 	public double friction;
+	public boolean physics = false;
+	//public bool
 	
 	public void update() {
+		dx += (dx*friction - dx) * Time.deltaTime;
+		dy += (dy*friction - dy) * Time.deltaTime;
+		drot += (drot*friction - drot) * Time.deltaTime;
+		
 		entity.x += dx * Time.deltaTime;
 		entity.y += dy * Time.deltaTime;
 		entity.rotation += drot * Time.deltaTime;
-		double friction = 1 - ((1 - this.friction) * Time.deltaTime);
+	}
-		dx *= friction;
+	
-		dy *= friction;
+	public void render(Graphics2D g) {
-		drot *= friction;
+		if(DebugSettings.debugLevel > 0) {
+			g.setColor(xAxisColor);
+			g.drawLine((int)entity.x, (int)entity.y, (int)entity.x+(int)(dx*20), (int)entity.y);
+			g.setColor(yAxisColor);
+			g.drawLine((int)entity.x, (int)entity.y, (int)entity.x, (int)entity.y+(int)(dy*20));
+			g.setColor(debugColor);
+			g.drawLine((int)entity.x, (int)entity.y, (int)entity.x+(int)(dx*15), (int)entity.y+(int)(dy*15));
+		}
 	}
 }

src/diveengine2d/SceneManager.java

@@ -188,6 +188,7 @@ public class SceneManager {
 			for(DiveScript script : e.components) {
 				script.render(g);
 			}
+			e.render(g);
 		}
 	}
 
@@ -198,4 +199,8 @@ public class SceneManager {
 			}
 		}
 	}
+
+	public static int entityCount() {
+		return entities.size();
+	}
 }

src/diveengine2d/Time.java

@@ -9,5 +9,6 @@ public class Time {
 	public static double timeScale = 1;
 	public static double deltaTime = 0;
 	public static long nextSecond = System.currentTimeMillis() + 1000, startTime = 0;
+	public static double timedFramesCurrent;
 	
 }

src/diveengine2d/Vector2.java

@@ -0,0 +1,21 @@
+package diveengine2d;
+
+public class Vector2 {
+	public float x, y;
+	public Vector2(float x, float y) {
+		this.x = x;
+		this.y = y;
+	}
+	public Vector2 subtract(Vector2 b) {
+		Vector2 _return = new Vector2(x, y);
+		_return.x -= b.x;
+		_return.y -= b.y;
+		return _return;
+	}
+	
+	public Vector2 rectToPolar(Vector2 b) {
+		Vector2 _return = new Vector2(x, y);
+		
+		return _return;
+	}
+}

src/diveengine2d/Vector3.java

@@ -0,0 +1,10 @@
+package diveengine2d;
+
+public class Vector3 {
+	public float x, y, z;
+	public Vector3(float x, float y, float z) {
+		this.x = x;
+		this.y = y;
+		this.z = z;
+	}
+}