Fastest pixel blitting renderer being created in Java. 3D renderer. For educational purposes and most importantly, FUN
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SigRenderer2/src/sig/SigRenderer.java

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package sig;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import sig.models.Staircase;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.HashMap;
import java.util.List;
import java.util.Random;
import java.util.concurrent.ConcurrentHashMap;
import java.awt.Toolkit;
import java.awt.AWTException;
import java.awt.BorderLayout;
import java.awt.Robot;
import java.awt.Point;
import java.awt.Cursor;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
public class SigRenderer implements KeyListener,MouseListener,MouseMotionListener{
public static boolean WIREFRAME = false;
public static boolean PROFILING = false;
public static boolean FLYING_MODE = false;
public static int SCREEN_WIDTH=1280;
public static int SCREEN_HEIGHT=720;
public final static long TIMEPERTICK = 16666667l;
public static float DRAWTIME=0;
public static float DRAWLOOPTIME=0;
public static final float RESOLUTION=1;
public static Robot myRobot;
public static float rot = (float)Math.PI/4; //In radians.
public static ConcurrentHashMap<String,Block> blockGrid = new ConcurrentHashMap<>();
public static ConcurrentHashMap<String,Triangle> renderMap = new ConcurrentHashMap<>();
public static List<Pixel> pixels;
public static float fNear = 0.1f;
public static float fFar = 1000f;
public static float fFov = 90f;
public static float fAspectRatio = (float)SCREEN_HEIGHT/SCREEN_WIDTH;
public static Matrix matProj = Matrix.MakeProjection(fFov,fAspectRatio,fNear,fFar);
public static Vector vCamera = new Vector(31.5f,20f,31.5f);
public static final float cameraCollisionPadding = 0.2f;
public static final float cameraHeight = 1.75f;
public static final float cameraEyeHeight = 1.5f;
public static Vector vCameraOffset = new Vector(0,cameraEyeHeight,0);
public static Vector vCameraSpeed = new Vector(0,0,0);
public static float vCameraFriction = 0.5f;
public static Vector vLookDir = new Vector(0,0,1);
public static float yaw = (float)(-Math.PI/8);
public static float pitch = (float)(-Math.PI/6);
public static float roll = 0;
final static float MOVESPEED = FLYING_MODE?0.2f:0.075f;
final static float TURNSPEED = 0.004f;
public static float gravity = 0.01f;
public static float fallSpd = 0;
public static float xSpeed = 0f;
public static float zSpeed = 0f;
public static int jumpsAvailable = 1;
final public static Vector maxCameraSpeed = new Vector(MOVESPEED,1f,MOVESPEED);
public static float[] depthBuffer;
public static Triangle[] depthBuffer_tri;
public static float[] depthBuffer_noTransparency;
public static boolean[] translucencyBuffer;
public static HashMap<TextureType,Texture> blockTextures = new HashMap<TextureType,Texture>();
boolean upHeld=false,downHeld=false,leftHeld=false,rightHeld=false,
aHeld=false,sHeld=false,dHeld=false,wHeld=false,qHeld=false,eHeld=false,
spaceHeld=false;
boolean wLast=true,aLast=true;
public static MouseEvent request;
public static MouseEvent temp_request;
public static MouseHandler answer;
public static MouseHandler tempAnswer = null;
public static Panel panel;
public static Cursor invisibleCursor;
void addSpeed(Vector v) {
//vCameraSpeed = Vector.add(vCameraSpeed,v);
xSpeed+=v.x;
zSpeed+=v.z;
}
boolean checkCollisionSquare(float x,float y,float z) {
for (int yy=0;yy<cameraHeight;yy++) {
if (blockGrid.containsKey((float)Math.floor(vCamera.x+x+cameraCollisionPadding)+"_"+(float)Math.floor(vCamera.y+y+yy)+"_"+(float)Math.floor(vCamera.z+z+cameraCollisionPadding))||
blockGrid.containsKey((float)Math.floor(vCamera.x+x-cameraCollisionPadding)+"_"+(float)Math.floor(vCamera.y+y+yy)+"_"+(float)Math.floor(vCamera.z+z+cameraCollisionPadding))||
blockGrid.containsKey((float)Math.floor(vCamera.x+x+cameraCollisionPadding)+"_"+(float)Math.floor(vCamera.y+y+yy)+"_"+(float)Math.floor(vCamera.z+z-cameraCollisionPadding))||
blockGrid.containsKey((float)Math.floor(vCamera.x+x-cameraCollisionPadding)+"_"+(float)Math.floor(vCamera.y+y+yy)+"_"+(float)Math.floor(vCamera.z+z-cameraCollisionPadding))) {
return false;
}
}
return true;
}
void move() {
Vector speed = new Vector(xSpeed,0,zSpeed);
if (Vector.length(speed)>MOVESPEED) {
speed = Vector.multiply(Vector.normalize(speed),MOVESPEED);
xSpeed = speed.x;
zSpeed = speed.z;
}
float tempY = vCameraSpeed.y;
if (xSpeed==0&&zSpeed==0) {
return;
}
vCameraSpeed.y = 0;
vCameraSpeed = Vector.multiply(Vector.normalize(speed),Vector.length(speed));
vCameraSpeed.y=tempY;
if (FLYING_MODE||checkCollisionSquare(vCameraSpeed.x,0,0)) {
vCamera.x+=vCameraSpeed.x;
}
/*if (FLYING_MODE||checkCollisionSquare(0,vCameraSpeed.y,0)) {
vCamera.y+=vCameraSpeed.y;
}*/
if (FLYING_MODE||checkCollisionSquare(0,0,vCameraSpeed.z)) {
vCamera.z+=vCameraSpeed.z;
}
}
void friction(Vector v,float friction) {
/*System.out.println(vCameraSpeed);
vCameraSpeed.x=Math.signum(vCameraSpeed.x)>0?(vCameraSpeed.x-friction)<0?0:vCameraSpeed.x-friction:(vCameraSpeed.x+friction)>0?0:vCameraSpeed.x+friction;
//vCameraSpeed.y=Math.signum(vCameraSpeed.y)>0?(vCameraSpeed.y-vCameraFriction)<0?0:vCameraSpeed.y-vCameraFriction:(vCameraSpeed.y+vCameraFriction)>0?0:vCameraSpeed.y+vCameraFriction;
vCameraSpeed.z=Math.signum(vCameraSpeed.z)>0?(vCameraSpeed.z-friction)<0?0:vCameraSpeed.z-friction:(vCameraSpeed.z+friction)>0?0:vCameraSpeed.z+friction;*/
float xRatio = 0f;
float zRatio = 0f;
if (xSpeed==0&&zSpeed==0) {
return;
}
float absXSpeed = Math.abs(xSpeed);
float absZSpeed = Math.abs(zSpeed);
if (absXSpeed>absZSpeed) {
zRatio = absZSpeed/absXSpeed;
xRatio = 1 - zRatio;
} else {
xRatio = absXSpeed/absZSpeed;
zRatio = 1 - xRatio;
}
xSpeed=Math.signum(xSpeed)>0?(xSpeed-friction*xRatio)<0?0:xSpeed-friction*xRatio:(xSpeed+friction*xRatio)>0?0:xSpeed+friction*xRatio;
zSpeed=Math.signum(zSpeed)>0?(zSpeed-friction*zRatio)<0?0:zSpeed-friction*zRatio:(zSpeed+friction*zRatio)>0?0:zSpeed+friction*zRatio;
}
public void runGameLoop() {
if (!FLYING_MODE) {
move();
if (checkCollisionSquare(0,-gravity,0)) {
fallSpd=Math.max(-maxCameraSpeed.y,fallSpd-gravity);
friction(vCameraSpeed,0.004f); //Air friction.
} else {
if (!(wHeld||sHeld||aHeld||dHeld)) {
friction(vCameraSpeed,MOVESPEED/4);
}
if (fallSpd<0) {
vCamera.y=(float)Math.ceil(vCamera.y);
fallSpd=0;
jumpsAvailable=1;
}
}
if (fallSpd!=0) {
if (fallSpd>0) {
if (checkCollisionSquare(0,fallSpd+0.5f,0)) {
vCamera.y+=fallSpd;
} else {
fallSpd=0;
}
} else {
vCamera.y+=fallSpd;
}
}
if (spaceHeld&&jumpsAvailable==1&&fallSpd==0&&!checkCollisionSquare(0,-gravity,0)) {
jumpsAvailable=0;
fallSpd=0.2f;
}
}
if (upHeld) {
pitch+=TURNSPEED;
}
if (downHeld) {
pitch-=TURNSPEED;
}
if (rightHeld) {
roll-=MOVESPEED;
}
if (leftHeld) {
roll+=MOVESPEED;
}
if (wHeld||sHeld) {
Vector forward = Vector.multiply(vLookDir,MOVESPEED);
if (!FLYING_MODE) {
forward.y=0;
}
if (wLast&&wHeld) {
if (FLYING_MODE) {
vCamera = Vector.add(vCamera,forward);
}
addSpeed(forward);
// move(MOVESPEED);
}
if (!wLast&&sHeld) {
if (FLYING_MODE) {
vCamera = Vector.subtract(vCamera,forward);
}
addSpeed(Vector.multiply(forward,-1));
//move(MOVESPEED);
}
}
if (aLast&&aHeld) {
Vector leftStrafe = Vector.multiply(Matrix.MultiplyVector(Matrix.MakeRotationY((float)-Math.PI/2), vLookDir),MOVESPEED);
leftStrafe.y=0;
if (FLYING_MODE) {
vCamera = Vector.add(vCamera,leftStrafe);
}
addSpeed(leftStrafe);
//move(MOVESPEED);
}
if (!aLast&&dHeld) {
Vector rightStrafe = Vector.multiply(Matrix.MultiplyVector(Matrix.MakeRotationY((float)Math.PI/2), vLookDir),MOVESPEED);
rightStrafe.y=0;
if (FLYING_MODE) {
vCamera = Vector.add(vCamera,rightStrafe);
}
addSpeed(rightStrafe);
//move(MOVESPEED);
}
if (answer!=null) {
if (answer.e.getButton()==MouseEvent.BUTTON1) {
switch (answer.t.dir) {
case BlockType.FRONT:{
addBlock(Vector.add(answer.t.b.pos,new Vector(0,0,-1)),Cube.class,BlockType.PLANKS,FacingDirection.SOUTH);
}break;
case BlockType.BACK:{
addBlock(Vector.add(answer.t.b.pos,new Vector(0,0,1)),Cube.class,BlockType.PLANKS,FacingDirection.SOUTH);
}break;
case BlockType.LEFT:{
addBlock(Vector.add(answer.t.b.pos,new Vector(-1,0,0)),Cube.class,BlockType.PLANKS,FacingDirection.SOUTH);
}break;
case BlockType.RIGHT:{
addBlock(Vector.add(answer.t.b.pos,new Vector(1,0,0)),Cube.class,BlockType.PLANKS,FacingDirection.SOUTH);
}break;
case BlockType.TOP:{
addBlock(Vector.add(answer.t.b.pos,new Vector(0,1,0)),Cube.class,BlockType.PLANKS,FacingDirection.SOUTH);
}break;
case BlockType.BOTTOM:{
addBlock(Vector.add(answer.t.b.pos,new Vector(0,-1,0)),Cube.class,BlockType.PLANKS,FacingDirection.SOUTH);
}break;
}
} else
if (answer.e.getButton()==MouseEvent.BUTTON2) {
answer.t.b.rotateClockwise();
} else
if (answer.e.getButton()==MouseEvent.BUTTON3) {
removeBlock(answer.t.b.pos);
}
answer=null;
}
}
public static void addBlock(Vector pos,Class<?> meshType,BlockType type,FacingDirection facingDir) {
Block b;
try {
b = new Block(pos,(Mesh)meshType.getConstructor(BlockType.class).newInstance(type),FacingDirection.SOUTH);
b.setFacingDirection(facingDir);
blockGrid.put(pos.x+"_"+pos.y+"_"+pos.z,b);
b.updateFaces();
} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException
| NoSuchMethodException | SecurityException e) {
e.printStackTrace();
}
}
public static void removeBlock(Vector pos) {
if (SigRenderer.blockGrid.containsKey(pos.x+"_"+(pos.y+1)+"_"+pos.z)) {
SigRenderer.blockGrid.get(pos.x+"_"+(pos.y+1)+"_"+pos.z).neighbors.DOWN=false;
}
if (SigRenderer.blockGrid.containsKey(pos.x+"_"+(pos.y-1)+"_"+pos.z)) {
SigRenderer.blockGrid.get(pos.x+"_"+(pos.y-1)+"_"+pos.z).neighbors.UP=false;
}
if (SigRenderer.blockGrid.containsKey((pos.x-1)+"_"+(pos.y)+"_"+pos.z)) {
SigRenderer.blockGrid.get((pos.x-1)+"_"+(pos.y)+"_"+pos.z).neighbors.RIGHT=false;
}
if (SigRenderer.blockGrid.containsKey((pos.x+1)+"_"+(pos.y)+"_"+pos.z)) {
SigRenderer.blockGrid.get((pos.x+1)+"_"+(pos.y)+"_"+pos.z).neighbors.LEFT=false;
}
if (SigRenderer.blockGrid.containsKey(pos.x+"_"+(pos.y)+"_"+(pos.z+1))) {
SigRenderer.blockGrid.get(pos.x+"_"+(pos.y)+"_"+(pos.z+1)).neighbors.BACKWARD=false;
}
if (SigRenderer.blockGrid.containsKey(pos.x+"_"+(pos.y)+"_"+(pos.z-1))) {
SigRenderer.blockGrid.get(pos.x+"_"+(pos.y)+"_"+(pos.z-1)).neighbors.FORWARD=false;
}
blockGrid.remove(pos.x+"_"+pos.y+"_"+pos.z);
}
SigRenderer(JFrame f) {
//cube = new Mesh(OBJReader.ReadOBJFile("teapot.obj",false));
Random r = new Random(438107);
for (int x=0;x<64;x++) {
for (int z=0;z<64;z++) {
addBlock(new Vector(x,0,z),Staircase.class,BlockType.PLANKS,FacingDirection.SOUTH);
//addBlock(new Vector(x,1,z),BlockType.JUNGLE_PLANK,FacingDirection.SOUTH);
//addBlock(new Vector(x,2,z),BlockType.SPRUCE_PLANK,FacingDirection.SOUTH);
/*for (int y=1;y<r.nextInt(5);y++) {
addBlock(new Vector(x,y,z),BlockType.PLANKS,FacingDirection.SOUTH);
}*/
/*if (r.nextInt(2)<1) {
switch (r.nextInt(7)) {
case 1:{
addBlock(new Vector(x,1,z),BlockType.FURNACE,FacingDirection.values()[r.nextInt(FacingDirection.values().length)]);
}break;
case 2:{
addBlock(new Vector(x,1,z),BlockType.PUMPKIN,FacingDirection.values()[r.nextInt(FacingDirection.values().length)]);
}break;
case 3:{
addBlock(new Vector(x,1,z),BlockType.CRAFTING_TABLE,FacingDirection.values()[r.nextInt(FacingDirection.values().length)]);
}break;
}
}*/
/*
if (Math.random()<=0.5) {
addBlock(new Vector(x,y,z),BlockType.GLASS);
} else {
addBlock(new Vector(x,y,z),BlockType.SNOW_DIRT);
}*/
}
}
addBlock(new Vector(31,1,31),Staircase.class,BlockType.PLANKS,FacingDirection.NORTH);
addBlock(new Vector(31,2,32),Staircase.class,BlockType.PLANKS,FacingDirection.EAST);
addBlock(new Vector(31,3,33),Staircase.class,BlockType.PLANKS,FacingDirection.WEST);
addBlock(new Vector(31,4,34),Staircase.class,BlockType.PLANKS,FacingDirection.SOUTH);
addBlock(new Vector(31,5,35),Staircase.class,BlockType.PLANKS,FacingDirection.SOUTH);
for (int x=0;x<64;x++) {
for (int y=1;y<5;y++) {
/*
if (x%8>2&&x%8<6&&y>1&&y<4) {
addBlock(new Vector(x,y,16),BlockType.GLASS);
} else {
addBlock(new Vector(x,y,16),BlockType.FURNACE);
}*/
}
}
panel = new Panel();
f.getContentPane().addMouseListener(this);
f.getContentPane().addMouseMotionListener(this);
f.addKeyListener(this);
f.setSize(SCREEN_WIDTH,SCREEN_HEIGHT);
f.add(panel,BorderLayout.CENTER);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
invisibleCursor = f.getToolkit().createCustomCursor(new BufferedImage(1,1,BufferedImage.TYPE_INT_ARGB),new Point(),null);
panel.setCursor(invisibleCursor);
f.setVisible(true);
GraphicsDevice screen = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
f.setLocation((screen.getDisplayMode().getWidth()-SigRenderer.SCREEN_WIDTH)/2,(screen.getDisplayMode().getHeight()-SigRenderer.SCREEN_HEIGHT)/2);
panel.init();
new Thread() {
public void run(){
while (true) {
long startTime = System.nanoTime();
runGameLoop();
panel.repaint();
Toolkit.getDefaultToolkit().sync();
long endTime = System.nanoTime();
long diff = endTime-startTime;
try {
long sleepTime = TIMEPERTICK - diff;
long millis = (sleepTime)/1000000;
int nanos = (int)(sleepTime-(((sleepTime)/1000000)*1000000));
//System.out.println("FRAME DRAWING: Sleeping for ("+millis+"ms,"+nanos+"ns) - "+(diff)+"ns");
DRAWTIME = (float)diff/1000000;
f.setTitle("Game Loop: "+DRAWTIME+"ms, Draw Loop: "+DRAWLOOPTIME+"ms");
if (sleepTime>0) {
Thread.sleep(millis,nanos);
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}.start();
}
public static void main(String[] args) {
try {
myRobot = new Robot();
final int BLOCK_WIDTH = 128;
final int BLOCK_HEIGHT = 128;
BufferedImage img = ImageIO.read(new File("textures.png"));
WritableRaster r = img.getRaster();
for (TextureType tt : TextureType.values()) {
int[] pixelData = new int[tt.texWidth*BLOCK_WIDTH*tt.texHeight*BLOCK_HEIGHT];
Texture tex = new Texture(pixelData,tt.texWidth*BLOCK_WIDTH,tt.texHeight*BLOCK_HEIGHT,tt);
int startX=tt.texX*BLOCK_WIDTH;
int startY=tt.texY*BLOCK_HEIGHT;
for (int x=0;x<tt.texWidth*BLOCK_WIDTH;x++) {
for (int y=0;y<tt.texHeight*BLOCK_HEIGHT;y++) {
int[] pixel = r.getPixel(x+startX,y+startY,new int[4]);
pixelData[x+y*tt.texWidth*BLOCK_WIDTH]=pixel[2]+(pixel[1]<<8)+(pixel[0]<<16)+(pixel[3]<<24);
if (pixel[3]!=255) {
if (pixel[3]>0) {
tex.hasTranslucency=true;
} else {
tex.hasTransparency=true;
}
}
}
}
blockTextures.put(tt,tex);
}
JFrame f = new JFrame("SigRenderer");
new SigRenderer(f);
} catch (IOException | AWTException e) {
System.err.println("Cannot find game textures! (textures.png required)");
}
}
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mousePressed(MouseEvent e) {
request=e;
answer=null;
}
@Override
public void mouseReleased(MouseEvent e) {
}
@Override
public void mouseEntered(MouseEvent e) {
}
@Override
public void mouseExited(MouseEvent e) {
}
@Override
public void mouseDragged(MouseEvent e) {
}
@Override
public void mouseMoved(MouseEvent e) {
Point middle = new Point((int)(panel.getLocationOnScreen().x+panel.getWidth()/2), (int)(panel.getLocationOnScreen().y+panel.getHeight()/2));
//System.out.println((middle.x-e.getXOnScreen())+","+(middle.y-e.getYOnScreen()));
int diffX=Math.max(-100,Math.min(100,e.getXOnScreen()-middle.x));
int diffY=-Math.max(-100,Math.min(100,e.getYOnScreen()-middle.y));
yaw+=diffX*TURNSPEED*1.5;
pitch=(float)Math.max(-Math.PI/2+0.01f,Math.min(Math.PI/2-0.01f,pitch+diffY*TURNSPEED));
myRobot.mouseMove(middle.x,middle.y);
}
@Override
public void keyTyped(KeyEvent e) {
// TODO Auto-generated method stub
}
@Override
public void keyPressed(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_UP:{
upHeld=true;
}break;
case KeyEvent.VK_RIGHT:{
rightHeld=true;
}break;
case KeyEvent.VK_LEFT:{
leftHeld=true;
}break;
case KeyEvent.VK_DOWN:{
downHeld=true;
}break;
case KeyEvent.VK_W:{
wLast=true;
wHeld=true;
}break;
case KeyEvent.VK_D:{
aLast=false;
dHeld=true;
}break;
case KeyEvent.VK_A:{
aLast=true;
aHeld=true;
}break;
case KeyEvent.VK_S:{
wLast=false;
sHeld=true;
}break;
case KeyEvent.VK_E:{
eHeld=true;
}break;
case KeyEvent.VK_Q:{
qHeld=true;
}break;
case KeyEvent.VK_SPACE:{
spaceHeld=true;
}break;
}
}
@Override
public void keyReleased(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_UP:{
upHeld=false;
}break;
case KeyEvent.VK_RIGHT:{
rightHeld=false;
}break;
case KeyEvent.VK_LEFT:{
leftHeld=false;
}break;
case KeyEvent.VK_DOWN:{
downHeld=false;
}break;
case KeyEvent.VK_W:{
wLast=false;
wHeld=false;
}break;
case KeyEvent.VK_D:{
aLast=true;
dHeld=false;
}break;
case KeyEvent.VK_A:{
aLast=false;
aHeld=false;
}break;
case KeyEvent.VK_S:{
wLast=true;
sHeld=false;
}break;
case KeyEvent.VK_E:{
eHeld=false;
}break;
case KeyEvent.VK_Q:{
qHeld=false;
}break;
case KeyEvent.VK_SPACE:{
spaceHeld=false;
}break;
}
}
}