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SigRenderer
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???? This is the holy grail of java drawing.

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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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sigonasr2, Sig, Sigo 3 years ago
parent fe3de52b30
commit 40da0c0dc8
2 changed files with 201 additions and 141 deletions
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  1. 220
      src/sig/Panel.java
  2. 122
      src/sig/SigRenderer.java

220
src/sig/Panel.java
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@ -5,36 +5,210 @@ import javax.vecmath.Vector3f;
import java.awt.Graphics;
import java.awt.Color;
public class Panel extends JPanel{
import java.awt.Image;
import java.awt.image.MemoryImageSource;
import java.awt.image.ColorModel;
import java.awt.GraphicsEnvironment;
import java.awt.GraphicsConfiguration;
import java.awt.Toolkit;
public class Panel extends JPanel implements Runnable {
long startTime = System.nanoTime();
long endTime = System.nanoTime();
public int pixel[];
public int width=SigRenderer.SCREEN_WIDTH;
public int height=SigRenderer.SCREEN_HEIGHT;
private Image imageBuffer;
private MemoryImageSource mImageProducer;
private ColorModel cm;
private Thread thread;
public Panel() {
super(true);
thread = new Thread(this, "MyPanel Thread");
}
/**
* Get Best Color model available for current screen.
* @return color model
*/
protected static ColorModel getCompatibleColorModel(){
GraphicsConfiguration gfx_config = GraphicsEnvironment.
getLocalGraphicsEnvironment().getDefaultScreenDevice().
getDefaultConfiguration();
return gfx_config.getColorModel();
}
/**
* Call it after been visible and after resizes.
*/
public void init(){
cm = getCompatibleColorModel();
width = getWidth();
height = getHeight();
int screenSize = width * height;
if(pixel == null || pixel.length < screenSize){
pixel = new int[screenSize];
}
mImageProducer = new MemoryImageSource(width, height, cm, pixel,0, width);
mImageProducer.setAnimated(true);
mImageProducer.setFullBufferUpdates(true);
imageBuffer = Toolkit.getDefaultToolkit().createImage(mImageProducer);
if(thread.isInterrupted() || !thread.isAlive()){
thread.start();
}
}
/**
* Do your draws in here !!
* pixel is your canvas!
*/
public /* abstract */ void render(){
int[] p = pixel; // this avoid crash when resizing
final int h=SigRenderer.SCREEN_HEIGHT;
if(p.length != width * height) return;
for(int x=0; x < width; x++){
double cameraX = 2*x/(double)SigRenderer.SCREEN_WIDTH-1;
double rayDirX = SigRenderer.dirX+SigRenderer.planeX*cameraX;
double rayDirY = SigRenderer.dirY+SigRenderer.planeY*cameraX;
int mapX = (int)SigRenderer.x;
int mapY = (int)SigRenderer.y;
double sideDistX;
double sideDistY;
double deltaDistX=Math.abs(1/rayDirX);
double deltaDistY=Math.abs(1/rayDirY);
double perpWallDist=0;
int stepX;
int stepY;
int hit=0;
int side=0;
if (rayDirX<0) {
stepX=-1;
sideDistX=(SigRenderer.x-mapX)*deltaDistX;
} else {
stepX=1;
sideDistX=(mapX+1d-SigRenderer.x)*deltaDistX;
}
if (rayDirY<0) {
stepY=-1;
sideDistY=(SigRenderer.y-mapY)*deltaDistY;
} else {
stepY=1;
sideDistY=(mapY+1d-SigRenderer.y)*deltaDistY;
}
while (hit==0) {
if (sideDistX<sideDistY) {
sideDistX+=deltaDistX;
mapX+=stepX;
side=0;
} else {
sideDistY+=deltaDistY;
mapY+=stepY;
side=1;
}
if (SigRenderer.worldMap[mapX][mapY]>0) {hit=1;}
if (side==0) {
perpWallDist=sideDistX-deltaDistX;
} else {
perpWallDist=sideDistY-deltaDistY;
}
}
int lineHeight = (int)(h/perpWallDist);
int drawStart=-lineHeight/2+h/2;
if (drawStart<0) {
drawStart=0;
}
int drawEnd=lineHeight/2+h/2;
if (drawEnd>=h) {drawEnd=h-1;}
/*Color col; //FLAT COLOR CHOOSER.
switch(SigRenderer.worldMap[mapX][mapY]) {
case 1:{col=Color.RED;}break;
case 2:{col=Color.GREEN;}break;
case 3:{col=Color.BLUE;}break;
case 4:{col=Color.WHITE;}break;
default:{col=Color.YELLOW;}break;
}
if (side==1) {col=col.darker();}
g.setColor(col);
g.drawLine(x,drawStart,x,drawEnd);*/
int texNum=SigRenderer.worldMap[mapX][mapY]-1;
double wallX;
if (side==0) {
wallX=SigRenderer.y+perpWallDist*rayDirY;
} else {
wallX=SigRenderer.x+perpWallDist*rayDirX;
}
wallX-=Math.floor(wallX);
int texX=(int)(wallX*(double)SigRenderer.TEXTURE_WIDTH);
if (side==0&&rayDirX>0){texX=SigRenderer.TEXTURE_WIDTH-texX-1;}
if (side==1&&rayDirY<0){texX=SigRenderer.TEXTURE_WIDTH-texX-1;}
double step=1d*SigRenderer.TEXTURE_HEIGHT/lineHeight;
double texPos=(drawStart-h/2+lineHeight/2)*step;
for(int y=0; y<height; y++){
if (y>=drawStart&&y<drawEnd) {
int texY=(int)texPos&(SigRenderer.TEXTURE_HEIGHT-1);
texPos+=step;
Color col = new Color(SigRenderer.textures[texNum][SigRenderer.TEXTURE_HEIGHT*texY+texX]);
if (side==1) {col=col.darker();}
p[ x + y * width] = col.getRGB();
} else {
p[ x + y * width] = 0;
}
}
}
i += 1;
j += 1;
endTime=System.nanoTime();
SigRenderer.DRAWLOOPTIME=(endTime-startTime)/1000000f;
}
private int i=1,j=256;
public void repaint() {
super.repaint();
startTime = System.nanoTime();
}
@Override
public void paintComponent(Graphics g) {
//g.clearRect(0,0,SigRenderer.SCREEN_WIDTH,SigRenderer.SCREEN_HEIGHT);
g.setColor(Color.BLACK);
g.fillRect(0,0,SigRenderer.SCREEN_WIDTH,SigRenderer.SCREEN_HEIGHT);
//Vector3f origin = new Vector3f(Math.cos(SigRenderer.rot)*10,0,10+Math.sin(SigRenderer.rot)*10);
/*for (int x=0;x<SigRenderer.SCREEN_WIDTH/RESOLUTION;x++) {
for (int y=0;y<SigRenderer.SCREEN_HEIGHT/RESOLUTION;y++) {
Vector3f dir = new Vector3f((-SigRenderer.SCREEN_WIDTH/2d+x*RESOLUTION),(-SigRenderer.SCREEN_HEIGHT/2d+y*RESOLUTION),SigRenderer.SCREEN_WIDTH);
if (SigRenderer.tri.rayTriangleIntersect(origin, dir)) {
g.setColor(Color.BLACK);
g.fillRect((int)(SigRenderer.SCREEN_WIDTH-x*RESOLUTION),(int)(SigRenderer.SCREEN_HEIGHT-y*RESOLUTION),(int)RESOLUTION,(int)RESOLUTION);
//System.out.println("Intersects at "+origin+"/"+dir);
} else
if (SigRenderer.tri2.rayTriangleIntersect(origin, dir)) {
g.setColor(Color.BLUE);
g.fillRect((int)(SigRenderer.SCREEN_WIDTH-x*RESOLUTION),(int)(SigRenderer.SCREEN_HEIGHT-y*RESOLUTION),(int)RESOLUTION,(int)RESOLUTION);
//System.out.println("Intersects at "+origin+"/"+dir);
}
}
}*/
g.drawImage(SigRenderer.buffer2,0,0,null);
endTime=System.nanoTime();
SigRenderer.DRAWLOOPTIME = (endTime-startTime)/1000000f;
super.paintComponent(g);
// perform draws on pixels
render();
// ask ImageProducer to update image
mImageProducer.newPixels();
// draw it on panel
g.drawImage(this.imageBuffer, 0, 0, this);
}
/**
* Overrides ImageObserver.imageUpdate.
* Always return true, assuming that imageBuffer is ready to go when called
*/
@Override
public boolean imageUpdate(Image image, int a, int b, int c, int d, int e) {
return true;
}
@Override
public void run() {
while (true) {
// request a JPanel re-drawing
repaint();
try {Thread.sleep(5);} catch (InterruptedException e) {}
}
}
}

122
src/sig/SigRenderer.java
Unescape View File

@ -14,8 +14,8 @@ import java.awt.GraphicsEnvironment;
import java.awt.GraphicsConfiguration;
public class SigRenderer implements KeyListener,MouseListener,MouseMotionListener{
public final static int SCREEN_WIDTH=640;
public final static int SCREEN_HEIGHT=480;
public final static int SCREEN_WIDTH=1280;
public final static int SCREEN_HEIGHT=720;
public final static int TEXTURE_WIDTH=64;
public final static int TEXTURE_HEIGHT=64;
public final static long TIMEPERTICK = 16666667l;
@ -102,122 +102,6 @@ public class SigRenderer implements KeyListener,MouseListener,MouseMotionListene
planeY=oldPlaneX*Math.sin(rotSpeed)+planeY*Math.cos(rotSpeed);
}
//buffer.flush();
Graphics2D g = buffer.createGraphics();
g.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR));
g.fillRect(0,0,SigRenderer.SCREEN_WIDTH,SigRenderer.SCREEN_HEIGHT);
//reset composite
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
final int h=SigRenderer.SCREEN_HEIGHT;
for (int x=0;x<SigRenderer.SCREEN_WIDTH;x++) {
double cameraX = 2*x/(double)SigRenderer.SCREEN_WIDTH-1;
double rayDirX = SigRenderer.dirX+SigRenderer.planeX*cameraX;
double rayDirY = SigRenderer.dirY+SigRenderer.planeY*cameraX;
int mapX = (int)SigRenderer.x;
int mapY = (int)SigRenderer.y;
double sideDistX;
double sideDistY;
double deltaDistX=Math.abs(1/rayDirX);
double deltaDistY=Math.abs(1/rayDirY);
double perpWallDist=0;
int stepX;
int stepY;
int hit=0;
int side=0;
if (rayDirX<0) {
stepX=-1;
sideDistX=(SigRenderer.x-mapX)*deltaDistX;
} else {
stepX=1;
sideDistX=(mapX+1d-SigRenderer.x)*deltaDistX;
}
if (rayDirY<0) {
stepY=-1;
sideDistY=(SigRenderer.y-mapY)*deltaDistY;
} else {
stepY=1;
sideDistY=(mapY+1d-SigRenderer.y)*deltaDistY;
}
while (hit==0) {
if (sideDistX<sideDistY) {
sideDistX+=deltaDistX;
mapX+=stepX;
side=0;
} else {
sideDistY+=deltaDistY;
mapY+=stepY;
side=1;
}
if (SigRenderer.worldMap[mapX][mapY]>0) {hit=1;}
if (side==0) {
perpWallDist=sideDistX-deltaDistX;
} else {
perpWallDist=sideDistY-deltaDistY;
}
}
int lineHeight = (int)(h/perpWallDist);
int drawStart=-lineHeight/2+h/2;
if (drawStart<0) {
drawStart=0;
}
int drawEnd=lineHeight/2+h/2;
if (drawEnd>=h) {drawEnd=h-1;}
/*Color col; //FLAT COLOR CHOOSER.
switch(SigRenderer.worldMap[mapX][mapY]) {
case 1:{col=Color.RED;}break;
case 2:{col=Color.GREEN;}break;
case 3:{col=Color.BLUE;}break;
case 4:{col=Color.WHITE;}break;
default:{col=Color.YELLOW;}break;
}
if (side==1) {col=col.darker();}
g.setColor(col);
g.drawLine(x,drawStart,x,drawEnd);*/
int texNum=SigRenderer.worldMap[mapX][mapY]-1;
double wallX;
if (side==0) {
wallX=SigRenderer.y+perpWallDist*rayDirY;
} else {
wallX=SigRenderer.x+perpWallDist*rayDirX;
}
wallX-=Math.floor(wallX);
int texX=(int)(wallX*(double)SigRenderer.TEXTURE_WIDTH);
if (side==0&&rayDirX>0){texX=SigRenderer.TEXTURE_WIDTH-texX-1;}
if (side==1&&rayDirY<0){texX=SigRenderer.TEXTURE_WIDTH-texX-1;}
double step=1d*SigRenderer.TEXTURE_HEIGHT/lineHeight;
double texPos=(drawStart-h/2+lineHeight/2)*step;
for (int y=drawStart;y<drawEnd;y++) {
int texY=(int)texPos&(SigRenderer.TEXTURE_HEIGHT-1);
texPos+=step;
Color col = new Color(SigRenderer.textures[texNum][SigRenderer.TEXTURE_HEIGHT*texY+texX]);
if (side==1) {col=col.darker();}
buffer.setRGB(x,y,col.getRGB());
}
}
Graphics2D g2 = buffer2.createGraphics();
g2.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR));
g2.fillRect(0,0,SigRenderer.SCREEN_WIDTH,SigRenderer.SCREEN_HEIGHT);
buffer2.getGraphics().drawImage(toCompatibleImage(buffer),0,0,null);
buffer2=toCompatibleImage(buffer2);
}
BufferedImage toCompatibleImage(BufferedImage image)
@ -302,6 +186,8 @@ public class SigRenderer implements KeyListener,MouseListener,MouseMotionListene
f.setSize(SCREEN_WIDTH,SCREEN_HEIGHT);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setVisible(true);
p.init();
}
public static void main(String[] args) {
JFrame f = new JFrame("SigRenderer");

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