Added parallax background, ship, and firing. Collision is WIP

res/shaders/s2b/frag.gls

@@ -0,0 +1,19 @@
+#version 330 core
+
+uniform sampler2D layer0;
+uniform sampler2D layer1;
+
+uniform float offset0 = 1;
+uniform float offset1 = 1;
+
+in vec2 texCoords;
+
+out vec4 color;
+
+void main() {
+    vec4 color0 = texture(layer0, texCoords + vec2(0, offset0));
+    vec4 color1 = texture(layer1, texCoords + vec2(0, offset1));
+	color = mix(color0, color1, 1 - color0.a);
+	if (color.a == 0)
+	    discard;
+}

res/shaders/s2b/vert.gls

@@ -0,0 +1,13 @@
+#version 330 core
+
+uniform mat4 mvp;
+
+layout (location = 0) in vec3 vertices;
+layout (location = 1) in vec2 itexCoords;
+
+out vec2 texCoords;
+
+void main() {
+	texCoords = itexCoords;
+	gl_Position = mvp * vec4(vertices, 1);
+}

res/shaders/s2t/frag.gls

@@ -2,20 +2,12 @@
 
 uniform sampler2D sampler;
 
-uniform vec4  iColor = vec4(1, 1, 1, 1);
-uniform float alpha  = 1;
-uniform float amount = 1;
-
 in vec2 texCoords;
 
 out vec4 color;
 
 void main() {
-	vec4 texColor = texture(sampler, texCoords);
+    color = texture(sampler, texCoords);
-	if(texColor.a == 0)
+	if (color.a == 0)
 	    discard;
-	else {
-		color = mix(iColor, texColor, amount);
-		color.a = color.a * alpha;
-	}
 }

src/com/gnarly/engine/display/Window.java

@@ -1,39 +1,6 @@
 package com.gnarly.engine.display;
 
-import static org.lwjgl.glfw.GLFW.GLFW_CONTEXT_VERSION_MAJOR;
+import static org.lwjgl.glfw.GLFW.*;
-import static org.lwjgl.glfw.GLFW.GLFW_CONTEXT_VERSION_MINOR;
-import static org.lwjgl.glfw.GLFW.GLFW_DECORATED;
-import static org.lwjgl.glfw.GLFW.GLFW_FALSE;
-import static org.lwjgl.glfw.GLFW.GLFW_KEY_LAST;
-import static org.lwjgl.glfw.GLFW.GLFW_MAXIMIZED;
-import static org.lwjgl.glfw.GLFW.GLFW_MOUSE_BUTTON_LAST;
-import static org.lwjgl.glfw.GLFW.GLFW_OPENGL_CORE_PROFILE;
-import static org.lwjgl.glfw.GLFW.GLFW_OPENGL_FORWARD_COMPAT;
-import static org.lwjgl.glfw.GLFW.GLFW_OPENGL_PROFILE;
-import static org.lwjgl.glfw.GLFW.GLFW_PRESS;
-import static org.lwjgl.glfw.GLFW.GLFW_RELEASE;
-import static org.lwjgl.glfw.GLFW.GLFW_REPEAT;
-import static org.lwjgl.glfw.GLFW.GLFW_RESIZABLE;
-import static org.lwjgl.glfw.GLFW.GLFW_SAMPLES;
-import static org.lwjgl.glfw.GLFW.GLFW_TRUE;
-import static org.lwjgl.glfw.GLFW.glfwCreateWindow;
-import static org.lwjgl.glfw.GLFW.glfwGetCursorPos;
-import static org.lwjgl.glfw.GLFW.glfwGetPrimaryMonitor;
-import static org.lwjgl.glfw.GLFW.glfwGetVideoMode;
-import static org.lwjgl.glfw.GLFW.glfwGetWindowSize;
-import static org.lwjgl.glfw.GLFW.glfwInit;
-import static org.lwjgl.glfw.GLFW.glfwMakeContextCurrent;
-import static org.lwjgl.glfw.GLFW.glfwPollEvents;
-import static org.lwjgl.glfw.GLFW.glfwSetErrorCallback;
-import static org.lwjgl.glfw.GLFW.glfwSetKeyCallback;
-import static org.lwjgl.glfw.GLFW.glfwSetMouseButtonCallback;
-import static org.lwjgl.glfw.GLFW.glfwSetWindowShouldClose;
-import static org.lwjgl.glfw.GLFW.glfwSetWindowSizeCallback;
-import static org.lwjgl.glfw.GLFW.glfwSwapBuffers;
-import static org.lwjgl.glfw.GLFW.glfwSwapInterval;
-import static org.lwjgl.glfw.GLFW.glfwTerminate;
-import static org.lwjgl.glfw.GLFW.glfwWindowHint;
-import static org.lwjgl.glfw.GLFW.glfwWindowShouldClose;
 import static org.lwjgl.opengl.GL.createCapabilities;
 import static org.lwjgl.opengl.GL11.GL_BLEND;
 import static org.lwjgl.opengl.GL11.GL_COLOR_BUFFER_BIT;
@@ -56,11 +23,10 @@ import org.lwjgl.glfw.GLFWVidMode;
 
 public class Window {
 	
-	public static String resolution;
-	
 	public static int
 		SCREEN_WIDTH,
-		SCREEN_HEIGHT;
+		SCREEN_HEIGHT,
+		REFRESH_RATE;
 	
 	public static final int
 		BUTTON_RELEASED  = 0,
@@ -115,6 +81,7 @@ public class Window {
 		SCREEN_WIDTH = vidMode.width();
 		SCREEN_HEIGHT = vidMode.height();
 		SCALE = SCREEN_HEIGHT / 1080f;
+		REFRESH_RATE = vidMode.refreshRate();
 		if(lwidth == 0 || lheight == 0) {
 			width = vidMode.width();
 			height = vidMode.height();
@@ -169,21 +136,12 @@ public class Window {
 		
 		glEnable(GL_MULTISAMPLE);
 
+		glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
+		
 		int[] awidth = new int[1], aheight = new int[1];
 		glfwGetWindowSize(window, awidth, aheight);
 		width = awidth[0];
 		height = aheight[0];
-		
-		if(SCREEN_HEIGHT > 2160)
-			resolution = "8k";
-		else if(SCREEN_HEIGHT > 1440)
-			resolution = "4k";
-		else if(SCREEN_HEIGHT > 1080)
-			resolution = "1440p";
-		else if(SCREEN_HEIGHT > 720)
-			resolution = "1080p";
-		else
-			resolution = "720p";
 	}
 	
 	public void update() {
@@ -198,7 +156,7 @@ public class Window {
 	}
 	
 	public void activateClearColor() {
-		glClearColor(0, 0, 0, 1);
+		glClearColor(0, 0, 0.02f, 1);
 	}
 
 	public int getWidth() {

src/com/gnarly/engine/model/Rect.java

@@ -54,6 +54,10 @@ public class Rect {
 		return position.y;
 	}
 
+	public Vector2f getPosition() {
+		return new Vector2f(position.x, position.y);
+	}
+
 	public float getWidth() {
 		return width;
 	}
@@ -62,6 +66,10 @@ public class Rect {
 		return height;
 	}
 
+	public Vector2f getDimensions() {
+		return new Vector2f(width, height);
+	}
+	
 	public void setX(float x) { 
 		position.x = x;
 	}

src/com/gnarly/engine/model/TexRect.java

@@ -13,12 +13,6 @@ public class TexRect extends Rect {
 	private Texture texture;
 	private Shader2t shader = Shader.SHADER2T;
 	protected float direction = 1;
-	private float alpha = 1;
-	private float r;
-	private float g;
-	private float b;
-	private float a;
-	private float amount = 1;
 	
 	public TexRect(Camera camera, String path, float x, float y, float z, float width, float height, float rotation, boolean gui) {
 		super(camera, x, y, z, width, height, rotation, gui);
@@ -35,8 +29,6 @@ public class TexRect extends Rect {
 		shader.enable();
 		Matrix4f cmat = gui ? camera.getProjection() : camera.getMatrix();
 		shader.setMVP(cmat.translate(position.add(width * scale / 2, height * scale / 2, 0, new Vector3f())).rotateZ(rotation).scale(width * scale * direction, height * scale, 1).translate(-0.5f, -0.5f, 0));
-		shader.setAlpha(alpha);
-		shader.setMixColor(r, g, b, a, amount);
 		vao.render();
 		shader.disable();
 		texture.unbind();
@@ -50,20 +42,4 @@ public class TexRect extends Rect {
 	public void setTexture(Texture texture) {
 		this.texture = texture;
 	}
-	
-	public void setMix(float r, float g, float b, float a, float amount) {
-		this.r = r;
-		this.g = g;
-		this.b = b;
-		this.a = a;
-		this.amount = 1 - amount;
-	}
-	
-	public void setAlpha(float alpha) {
-		this.alpha = alpha;
-	}
-	
-	public float getAlpha() {
-		return alpha;
-	}
 }

src/com/gnarly/engine/shaders/Shader.java

@@ -29,6 +29,7 @@ public abstract class Shader {
 
 	public static Shader2c SHADER2C;
 	public static Shader2t SHADER2T;
+	public static Shader2b SHADER2B;
 	
 	protected int program;
 	
@@ -95,5 +96,6 @@ public abstract class Shader {
 	public static void init() {
 		SHADER2C = new Shader2c();
 		SHADER2T = new Shader2t();
+		SHADER2B = new Shader2b();
 	}
 }

src/com/gnarly/engine/shaders/Shader2b.java

@@ -0,0 +1,32 @@
+package com.gnarly.engine.shaders;
+
+import static org.lwjgl.opengl.GL20.*;
+
+public class Shader2b extends Shader {
+
+	private int offset0Loc;
+	private int offset1Loc;
+
+	protected Shader2b() {
+		super("res/shaders/s2b/vert.gls", "res/shaders/s2b/frag.gls");
+		getUniforms();
+	}
+
+	public void setOffset(float offset0, float offset1) {
+		glUniform1f(offset0Loc, offset0);
+		glUniform1f(offset1Loc, offset1);
+	}
+
+	@Override
+	protected void getUniforms() {
+		offset0Loc = glGetUniformLocation(program, "offset0");
+		offset1Loc = glGetUniformLocation(program, "offset1");
+
+		int layer0 = glGetUniformLocation(program, "layer0");
+		int layer1 = glGetUniformLocation(program, "layer1");
+
+		enable();
+		glUniform1i(layer0, 0);
+		glUniform1i(layer1, 1);
+	}
+}

src/com/gnarly/engine/shaders/Shader2t.java

@@ -1,33 +1,12 @@
 package com.gnarly.engine.shaders;
 
-import static org.lwjgl.opengl.GL20.glGetUniformLocation;
-import static org.lwjgl.opengl.GL20.glUniform1f;
-import static org.lwjgl.opengl.GL20.glUniform4f;
-
 public class Shader2t extends Shader {
 	
-	private int alphaLoc;
-	private int colorLoc;
-	private int amountLoc;
-	
 	protected Shader2t() {
 		super("res/shaders/s2t/vert.gls", "res/shaders/s2t/frag.gls");
 		getUniforms();
 	}
 
-	public void setMixColor(float r, float g, float b, float a, float amount) {
-		glUniform4f(colorLoc, r, g, b, a);
-		glUniform1f(amountLoc, amount);
-	}
-	
-	public void setAlpha(float a) {
-		glUniform1f(alphaLoc, a);
-	}
-	
 	@Override
-	protected void getUniforms() {
+	protected void getUniforms() {}
-		alphaLoc  = glGetUniformLocation(program, "alpha");
-		colorLoc  = glGetUniformLocation(program, "iColor");
-		amountLoc = glGetUniformLocation(program, "amount");
-	}
 }

src/com/gnarly/engine/texture/Texture.java

@@ -1,20 +1,5 @@
 package com.gnarly.engine.texture;
 
-import static org.lwjgl.opengl.GL11.GL_CLAMP;
-import static org.lwjgl.opengl.GL11.GL_NEAREST;
-import static org.lwjgl.opengl.GL11.GL_RGBA;
-import static org.lwjgl.opengl.GL11.GL_TEXTURE_2D;
-import static org.lwjgl.opengl.GL11.GL_TEXTURE_MAG_FILTER;
-import static org.lwjgl.opengl.GL11.GL_TEXTURE_MIN_FILTER;
-import static org.lwjgl.opengl.GL11.GL_TEXTURE_WRAP_S;
-import static org.lwjgl.opengl.GL11.GL_TEXTURE_WRAP_T;
-import static org.lwjgl.opengl.GL11.GL_UNSIGNED_BYTE;
-import static org.lwjgl.opengl.GL11.glBindTexture;
-import static org.lwjgl.opengl.GL11.glDeleteTextures;
-import static org.lwjgl.opengl.GL11.glGenTextures;
-import static org.lwjgl.opengl.GL11.glTexImage2D;
-import static org.lwjgl.opengl.GL11.glTexParameterf;
-
 import java.awt.image.BufferedImage;
 import java.io.File;
 import java.io.IOException;
@@ -26,21 +11,25 @@ import org.lwjgl.BufferUtils;
 
 import com.gnarly.engine.display.Window;
 
+import static org.lwjgl.opengl.GL11.*;
+import static org.lwjgl.opengl.GL13.GL_TEXTURE0;
+import static org.lwjgl.opengl.GL13.glActiveTexture;
+
 public class Texture {
 
 	protected int id, width, height;
 
 	public Texture(String name) {
+		this(name, GL_CLAMP);
+	}
+
+	public Texture(String name, int wrap) {
 		BufferedImage bi = null;
 		try {
-			bi = ImageIO.read(new File("res/img/" + Window.resolution + "/" + name));
+			bi = ImageIO.read(new File(name));
 		} catch (IOException e) {
-			try {
-				bi = ImageIO.read(new File("res/img/const/" + name));
-			} catch (IOException ex) {
 			e.printStackTrace();
 		}
-		}
 		if (bi != null) {
 			width = bi.getWidth();
 			height = bi.getHeight();
@@ -60,10 +49,10 @@ public class Texture {
 
 			id = glGenTextures();
 			bind();
-			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, wrap);
-			glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+			glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, wrap);
 			glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
 			unbind();
 		}
@@ -84,6 +73,11 @@ public class Texture {
 	}
 
 	public void bind() {
+		bind(0);
+	}
+
+	public void bind(int activeTexture) {
+		glActiveTexture(GL_TEXTURE0 + activeTexture);
 		glBindTexture(GL_TEXTURE_2D, id);
 	}
 	

src/com/gnarly/engine/texture/TextureSet.java

@@ -0,0 +1,20 @@
+package com.gnarly.engine.texture;
+
+public class TextureSet {
+
+	private Texture[] textures;
+
+	public TextureSet(String[] paths) {
+		textures = new Texture[paths.length];
+		for (int i = 0; i < textures.length; ++i)
+			textures[i] = new Texture(paths[i]);
+	}
+
+	public int length() {
+		return textures.length;
+	}
+
+	public Texture get(int index) {
+		return textures[index];
+	}
+}

src/com/gnarly/game/Background.java

@@ -0,0 +1,47 @@
+package com.gnarly.game;
+
+import com.gnarly.engine.model.Rect;
+import com.gnarly.engine.shaders.Shader2b;
+import org.joml.Matrix4f;
+import org.joml.Vector3f;
+
+import com.gnarly.engine.display.Camera;
+import com.gnarly.engine.shaders.Shader;
+import com.gnarly.engine.shaders.Shader2t;
+import com.gnarly.engine.texture.Texture;
+
+import static org.lwjgl.opengl.GL11.GL_REPEAT;
+
+public class Background extends Rect {
+
+	private Texture layer0;
+	private Texture layer1;
+	private Shader2b shader = Shader.SHADER2B;
+	private float offset;
+
+	private double speed = -0.25;
+
+	public Background(Camera camera) {
+		super(camera, 0, 0, -0.5f, camera.getWidth(), camera.getHeight(), 0, false);
+		layer0 = new Texture("res/img/background/background-layer-0.png", GL_REPEAT);
+		layer1 = new Texture("res/img/background/background-layer-1.png", GL_REPEAT);
+	}
+
+	public void update() {
+		offset = (float) (offset + speed * Main.dtime) % 2;
+	}
+
+	public void render() {
+		layer0.bind(0);
+		layer1.bind(1);
+		shader.enable();
+		shader.setOffset(offset, offset * 0.5f);
+		shader.setMVP(camera.getMatrix().translate(position).scale(width * scale, height * scale, 1));
+		vao.render();
+	}
+
+	public void setCenter(float x, float y) {
+		position.x = x - width  / 2;
+		position.y = y - height / 2;
+	}
+}

src/com/gnarly/game/BulletList.java

@@ -0,0 +1,188 @@
+package com.gnarly.game;
+
+import com.gnarly.engine.display.Camera;
+import com.gnarly.engine.model.ColRect;
+import com.gnarly.engine.model.Rect;
+import com.gnarly.engine.model.Vao;
+import com.gnarly.engine.shaders.Shader;
+import com.gnarly.engine.shaders.Shader2t;
+import com.gnarly.engine.texture.TextureSet;
+import org.joml.Vector2f;
+
+import java.util.ArrayList;
+
+public class BulletList {
+
+	private static final double SPF = 1.0 / 20.0;
+
+	private static TextureSet[] sprites = null;
+	private static Vao vao;
+	private Shader2t shader = Shader.SHADER2T;
+
+	public static class Bullet {
+		public double lifetime;
+		public int sprite;
+		public Vector2f position;
+		public Vector2f side0;
+		public Vector2f side1;
+		public Vector2f velocity;
+
+		public float width;
+		public float height;
+		public float rotation;
+
+		public Vector2f boundingPosition;
+		public Vector2f bounds;
+	}
+
+	public static final Vector2f[] DIMENSIONS = new Vector2f[] {
+		new Vector2f(4, -8)
+	};
+
+	public static final float[] SPEEDS = new float[] {
+		20
+	};
+
+	public static final int
+		TYPE_PLAYER = 0x00;
+
+	private Camera camera;
+
+	private ArrayList<Bullet> bullets;
+
+	public BulletList(Camera camera) {
+		this.camera = camera;
+		bullets = new ArrayList<>();
+
+		if (sprites == null) {
+			sprites = new TextureSet[1];
+			sprites[0] = new TextureSet(new String[] {
+				"res/img/bullets/bullet-0/bullet-0.png",
+				"res/img/bullets/bullet-0/bullet-1.png",
+				"res/img/bullets/bullet-0/bullet-2.png",
+				"res/img/bullets/bullet-0/bullet-3.png",
+			});
+			float vertices[] = {
+				1, 1, 0, // Top left
+				1, 0, 0, // Bottom left
+				0, 0, 0, // Bottom right
+				0, 1, 0  // Top right
+			};
+			int indices[] = {
+				0, 1, 3,
+				1, 2, 3
+			};
+			float[] texCoords = {
+				1, 0,
+				1, 1,
+				0, 1,
+				0, 0
+			};
+			vao = new Vao(vertices, indices);
+			vao.addAttrib(texCoords, 2);
+		}
+	}
+
+	public void update(Rect rect, Vector2f velocity) {
+		for (int i = 0; i < bullets.size(); ++i) {
+			Bullet bullet = bullets.get(i);
+			Vector2f deltaV = bullet.velocity.mul((float) Main.dtime, new Vector2f());
+			if (Collision.collide(rect.getPosition(), rect.getDimensions(), velocity, bullet))
+				System.out.println("collision");
+			bullet.position.add(deltaV);
+			bullet.boundingPosition.add(deltaV);
+			bullet.lifetime += Main.dtime;
+
+			if (bullet.boundingPosition.x > camera.getWidth()   || bullet.boundingPosition.y > camera.getHeight()
+			 || bullet.boundingPosition.x + bullet.bounds.x < 0 || bullet.boundingPosition.y + bullet.bounds.y < 0) {
+				bullets.remove(i);
+				--i;
+			}
+		}
+	}
+
+	public void render() {
+		for (int i = 0; i < bullets.size(); ++i) {
+			Bullet bullet = bullets.get(i);
+			sprites[bullet.sprite].get((int) (bullet.lifetime / SPF) % sprites[bullet.sprite].length()).bind();
+			shader.enable();
+			shader.setMVP(camera.getMatrix().translate(bullet.position.x, bullet.position.y, -0.25f).rotateZ(bullet.rotation).scale(bullet.width, bullet.height, 1));
+			vao.render();
+		}
+	}
+
+	public void spawnBullet(Vector2f position, float rotation, int type) {
+		spawnBullet(position, DIMENSIONS[type], rotation, SPEEDS[type], type);
+	}
+
+	private void spawnBullet(Vector2f position, Vector2f dimensions, float rotation, float velocity, int sprite) {
+		float sin = (float) -Math.sin(rotation);
+		float cos = (float)  Math.cos(rotation);
+
+		float initialPosition = -dimensions.x / 2;
+
+		/**************************************
+		 *                                    *
+		 *   2D Rotations                     *
+		 *                                    *
+		 **************************************
+		 *                                    *
+		 *   x + yi * cos + sini              *
+	     *   (xcos - ysin) + (xsin + ycos)i   *
+		 *                                    *
+		 **************************************/
+		Bullet bullet = new Bullet();
+		bullet.position = new Vector2f(initialPosition * cos, initialPosition * sin);
+		bullet.position.add(position);
+		bullet.side0 = new Vector2f( dimensions.x * cos, dimensions.x * sin);
+		bullet.side1 = new Vector2f(-dimensions.y * sin, dimensions.y * cos);
+		bullet.velocity = new Vector2f(velocity * sin, -velocity * cos);
+
+		bullet.width  = dimensions.x;
+		bullet.height = dimensions.y;
+		bullet.rotation = -rotation;
+
+		bullet.lifetime = 0;
+		bullet.sprite = sprite;
+
+		Vector2f p0 = new Vector2f(bullet.position);
+		Vector2f p1 = new Vector2f(bullet.position).add(bullet.side0);
+		Vector2f p2 = new Vector2f(bullet.position).add(bullet.side1);
+		Vector2f p3 = new Vector2f(bullet.position).add(bullet.side0).add(bullet.side1);
+
+		bullet.boundingPosition = new Vector2f(
+			min(new float[]{ p0.x, p1.x, p2.x, p3.x }),
+			min(new float[]{ p0.y, p1.y, p2.y, p3.y })
+		);
+		bullet.bounds = new Vector2f(
+			max(new float[]{ p0.x, p1.x, p2.x, p3.x }),
+			max(new float[]{ p0.y, p1.y, p2.y, p3.y })
+		).sub(bullet.boundingPosition);
+
+		bullets.add(bullet);
+	}
+
+	public float getWidth(int type) {
+		return DIMENSIONS[type].x;
+	}
+
+	public float getHeight(int type) {
+		return DIMENSIONS[type].y;
+	}
+
+	private float min(float[] nums) {
+		float min = nums[0];
+		for (int i = 1; i < nums.length; ++i)
+			if (nums[i] < min)
+				min = nums[i];
+		return min;
+	}
+
+	private float max(float[] nums) {
+		float max = nums[0];
+		for (int i = 1; i < nums.length; ++i)
+			if (nums[i] > max)
+				max = nums[i];
+		return max;
+	}
+}

src/com/gnarly/game/Collision.java

@@ -0,0 +1,103 @@
+package com.gnarly.game;
+
+import org.joml.Vector2f;
+
+public class Collision {
+	public static class Bounds {
+		public Vector2f position;
+		public Vector2f dimensions;
+
+		public Bounds(Vector2f position, Vector2f dimensions) {
+			this.position   = new Vector2f(position);
+			this.dimensions = new Vector2f(dimensions);
+		}
+	}
+
+	public static boolean collide(Vector2f position, Vector2f dimensions, Vector2f boundVelocity, BulletList.Bullet bullet) {
+		Bounds bounds = getBounds(position, dimensions, boundVelocity);
+		Bounds bulletBounds = getBounds(bullet.boundingPosition, bullet.bounds, bullet.velocity);
+		if (overlap(bounds, bulletBounds)) {
+			Vector2f[] boundsSegments = new Vector2f[] {
+				position,
+				new Vector2f( dimensions.x,  0),
+				new Vector2f( 0,  dimensions.y),
+				new Vector2f(-dimensions.x,  0),
+				new Vector2f( 0, -dimensions.y)
+			};
+			Vector2f[] bulletSegments = new Vector2f[] {
+				bullet.position,
+				bullet.side0,
+				bullet.side1,
+				bullet.side0.negate(new Vector2f()),
+				bullet.side1.negate(new Vector2f())
+			};
+			Vector2f curBoundsSegment = new Vector2f();
+			for (int i = 0; i < boundsSegments.length - 1; ++i) {
+				curBoundsSegment.add(boundsSegments[i]);
+				Vector2f curBulletSegment = new Vector2f();
+				for (int j = 0; j < bulletSegments.length - 1; ++j) {
+					curBulletSegment.add(bulletSegments[i]);
+					if (segmentCollision(curBoundsSegment, boundsSegments[i + 1], boundVelocity, curBulletSegment, bulletSegments[j + 1], bullet.velocity))
+						return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	public static boolean overlap(Bounds bounds0, Bounds bounds1) {
+		return bounds0.position.x < bounds1.position.x + bounds1.dimensions.x && bounds0.position.x + bounds0.dimensions.x > bounds1.position.x
+		    && bounds0.position.y < bounds1.position.y + bounds1.dimensions.y && bounds1.position.y + bounds1.dimensions.y > bounds1.position.y;
+	}
+
+	public static Bounds getBounds(Vector2f position, Vector2f dimensions, Vector2f velocity) {
+		Bounds bounds = new Bounds(position, dimensions);
+		if (velocity.x < 0)
+			bounds.position.x += velocity.x;
+		else
+			bounds.dimensions.x += velocity.x;
+		if (velocity.y < 0)
+			bounds.position.y += velocity.y;
+		else
+			bounds.dimensions.y += velocity.y;
+		return bounds;
+	}
+
+	public static boolean segmentCollision(Vector2f P1, Vector2f D1, Vector2f V1, Vector2f P2, Vector2f D2, Vector2f V2) {
+		final float DELTA = 0.00001f;
+
+		if ((V1.length() == 0 && V2.length() > 0)
+		 || (V2.length() == 0 && V1.length() > 0)
+		 ||  V1.angle(V2) > DELTA) {
+			float b = (P1.y - P2.y - (V2.y - V1.y) * (P1.x + D1.x - P2.x) / (V2.x - V1.x)) / (D2.y + (V2.y - V1.y) / (V2.x - V1.x));
+			if (rangeCheck(b)) {
+				float t = (P1.x - P2.x - D2.x * b) / (V2.x - V1.x);
+				if (rangeCheck(t))
+					return true;
+			}
+			float a = (P2.y - P1.y - (V1.y - V2.y) * (P2.x + D2.x - P1.x) / (V1.x - V2.x)) / (D1.y + (V1.y - V2.y) / (V1.x - V2.x));
+			if (rangeCheck(a)) {
+				float t = (P1.x + D1.x * a - P2.x) / (V2.x - V1.x);
+				if (rangeCheck(t))
+					return true;
+			}
+			b = (P1.y + D1.y - P2.y - (V2.y - V1.y) * (P1.x + D1.x - P2.x) / (V2.x - V1.x)) / (D2.y + (V2.y - V1.y) / (V2.x - V1.x));
+			if (rangeCheck(b)) {
+				float t = (P1.x + D1.x - P2.x - D2.x * b) / (V2.x - V1.x);
+				if (rangeCheck(t))
+					return true;
+			}
+			a = (P2.y + D2.y - P1.y - (V1.y - V2.y) * (P2.x + D2.x - P1.x) / (V1.x - V2.x)) / (D1.y + (V1.y - V2.y) / (V1.x - V2.x));
+			if (rangeCheck(a)) {
+				float t = (P1.x + D1.x * a - P2.x - D2.x) / (V2.x - V1.x);
+				if (rangeCheck(t))
+					return true;
+			}
+		}
+		return false;
+	}
+
+	public static boolean rangeCheck(float num) {
+		return 0 <= num && num <= 1;
+	}
+}

src/com/gnarly/game/GamePanel.java

@@ -2,25 +2,53 @@ package com.gnarly.game;
 
 import com.gnarly.engine.display.Camera;
 import com.gnarly.engine.display.Window;
+import com.gnarly.engine.model.ColRect;
+import org.joml.Vector2f;
+
+import static org.lwjgl.glfw.GLFW.GLFW_KEY_SPACE;
 
 public class GamePanel extends Panel {
 
 	private Window window;
 	private Camera camera;
 
+	private BulletList bullets;
+
+	private Background background;
+	private Player player;
+
+	private float rotation = 0;
+
+	private ColRect testRect;
+
 	public GamePanel(Window window, Camera camera) {
 		this.window = window;
 		this.camera = camera;
 
+		bullets = new BulletList(camera);
+
+		background = new Background(camera);
+		player = new Player(window, camera);
+
+		testRect = new ColRect(camera, 100, 100, 0, 25, 25, 1, 0, 0, 1, false);
+
 		state = Main.GAME_PANEL;
 	}
 	
 	public void update() {
+		bullets.update(testRect, new Vector2f(0, 100));
+		background.update();
+		player.update();
 
+		if (window.keyPressed(GLFW_KEY_SPACE) == Window.BUTTON_PRESSED)
+			bullets.spawnBullet(new Vector2f(player.getX() + (player.getWidth()) / 2, player.getY() + bullets.getHeight(BulletList.TYPE_PLAYER)), rotation += Math.PI / 16, BulletList.TYPE_PLAYER);
 	}
 	
 	public void render() {
-
+		testRect.render();
+		bullets.render();
+		background.render();
+		player.render();
 	}
 	
 	public void reset() {

src/com/gnarly/game/Main.java

@@ -4,10 +4,13 @@ import com.gnarly.engine.audio.ALManagement;
 import com.gnarly.engine.display.Camera;
 import com.gnarly.engine.display.Window;
 import com.gnarly.engine.shaders.Shader;
+import org.joml.Vector2f;
+
+import java.io.IOException;
 
 public class Main {
 
-	public static long FPS = 999;
+	public static int fps;
 	public static double dtime;	
 	
 	public static final int
@@ -23,16 +26,29 @@ public class Main {
 	private int panel;
 	
 	public void start() {
-		long curTime, pastTime, nspf = 1000000000 / FPS;
 		init();
+		int frames = 0;
+		long curTime, pastTime, pastSec, nspf = 1000000000 / Window.REFRESH_RATE;
 		pastTime = System.nanoTime();
+		pastSec = pastTime;
 		while(!window.shouldClose()) {
 			curTime = System.nanoTime();
 			if (curTime - pastTime > nspf) {
-				dtime = (curTime - pastTime) / 1000000000d;
+				dtime = nspf / 1000000000d;
 				update();
 				render();
-				pastTime = curTime;
+				pastTime += nspf;
+				++frames;
+				if (curTime - pastSec > 1000000000) {
+					fps = frames;
+					frames = 0;
+					pastSec += 1000000000;
+				}
+				try {
+					Thread.sleep(nspf / 1000000);
+				} catch (Exception e) {
+					e.printStackTrace();
+				}
 			}
 		}
 		al.destroy();
@@ -41,9 +57,9 @@ public class Main {
 	
 	private void init() {
 		al = new ALManagement();
-		window = new Window("Gamer Time", true);
+		//window = new Window("Gamer Time", true);
-		//window = new Window(100, 100, "Gamer Time", true, true, true);
+		window = new Window(768, 432, "Gamer Time", true, true, true);
-		camera = new Camera(1920, 1080);
+		camera = new Camera(768, 432);
 		Shader.init();
 		
 		panels = new Panel[NUM_PANELS];

src/com/gnarly/game/Player.java

@@ -0,0 +1,63 @@
+package com.gnarly.game;
+
+import com.gnarly.engine.display.Camera;
+import com.gnarly.engine.display.Window;
+import com.gnarly.engine.model.TexRect;
+import com.gnarly.engine.texture.Texture;
+
+import static org.lwjgl.glfw.GLFW.*;
+
+public class Player extends TexRect {
+
+	private double spf   = 1.0 / 14.0;
+	private double time  = 0;
+	private int    frame = 0;
+
+	private static Texture[] frames = null;
+
+	private Window window;
+
+	public Player(Window window, Camera camera) {
+		super(camera, (Texture) null, 0, 0, -0.1f, 32, 32, 0, false);
+		this.window = window;
+
+		if (frames == null) {
+			frames = new Texture[4];
+			frames[0] = new Texture("res/img/player-ship/player-ship-0.png");
+			frames[1] = new Texture("res/img/player-ship/player-ship-1.png");
+			frames[2] = new Texture("res/img/player-ship/player-ship-2.png");
+			frames[3] = new Texture("res/img/player-ship/player-ship-3.png");
+		}
+
+		setTexture(frames[0]);
+	}
+
+	public void update() {
+		final int SPEED = 150;
+		if (window.keyPressed(GLFW_KEY_W) >= Window.BUTTON_PRESSED)
+			position.y -= SPEED * Main.dtime;
+		if (window.keyPressed(GLFW_KEY_A) >= Window.BUTTON_PRESSED)
+			position.x -= SPEED * Main.dtime;
+		if (window.keyPressed(GLFW_KEY_S) >= Window.BUTTON_PRESSED)
+			position.y += SPEED * Main.dtime;
+		if (window.keyPressed(GLFW_KEY_D) >= Window.BUTTON_PRESSED)
+			position.x += SPEED * Main.dtime;
+
+		if (position.x < 0)
+			position.x = 0;
+		else if (position.x + width >= camera.getWidth())
+			position.x = camera.getWidth() - width;
+
+		if (position.y < 0)
+			position.y = 0;
+		else if (position.y + height >= camera.getHeight())
+			position.y = camera.getHeight() - height;
+
+		time += Main.dtime;
+		while (time >= spf) {
+			time -= spf;
+			frame = (frame + 1) % frames.length;
+			setTexture(frames[frame]);
+		}
+	}
+}