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RenderThread3.java
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RenderThread3.java
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package com.gmail.x544647.bettermc;
import java.awt.Color;
public class RenderThread3 extends RenderThread{
private Program program;
private int offset, length;
RenderThread3(Program program, int offset, int length){
super(program, offset, length);
this.program = program;
this.offset = offset;
this.length = length;
}
public void run() {
double radPerPixX = Math.toRadians(program.fovX / Program.imageX);
double imgXHalf = Program.imageX/2.0;
double imgYHalf = Program.imageY/2.0;
double maxDistToCenterScreen = Math.sqrt(imgXHalf*imgXHalf + imgYHalf*imgYHalf);
double c = Math.sqrt(2.0*(1.0/3.0)*(1.0/3.0));
for(int pX=offset; pX<offset+length; pX++) {
for(int pY = 0; pY<Program.imageY/2; pY++) {
program.pixels[(Program.imageY - pY - 1) * Program.imageX + pX] = ApplyMult(new Color(100, 100, 100),
Math.sqrt((pX - imgXHalf)*(pX - imgXHalf) + (pY - imgYHalf)*(pY - imgYHalf)) / maxDistToCenterScreen).getRGB();
}
for(int pY = Program.imageY/2; pY<Program.imageY; pY++) {
program.pixels[(Program.imageY - pY - 1) * Program.imageX + pX] = ApplyMult(new Color(50, 50, 255),
Math.sqrt((pX - imgXHalf)*(pX - imgXHalf) + (pY - imgYHalf)*(pY - imgYHalf)) / maxDistToCenterScreen).getRGB();
}
double angle = radPerPixX * (pX - imgXHalf) + program.CamRot.Y;
double stepZ = Math.tan(angle) / 3.0;
double stepX = Math.cos(angle) * c;
double currX = program.CamPos.X - Math.IEEEremainder(program.CamPos.X, 1.0/3.0);
double currZ = program.CamPos.Z - Math.IEEEremainder(program.CamPos.Z, 1.0/3.0);
double step = 1.0 / 3.0;
if(stepZ > stepX) {
while(currX >= 0 && currX < program.Map.length && currZ >= 0 && currZ < program.Map[0].length) {
if(program.Map[(int) currX][(int) currZ].HasRayHit(currX - (int) currX, currZ - (int) currZ)) {
double distance = Math.sqrt(Math.pow(currX - program.CamPos.X, 2) + Math.pow(currZ - program.CamPos.Z, 2));
int height = (int) (Program.imageY / (distance * Math.cos(radPerPixX * (pX - imgXHalf))) / 2.0);
//int height = (int) (Program.imageY / distance / 2.0);
if(height >= Program.imageY) {
for(int i=0; i<Program.imageY; i++) {
program.pixels[i * Program.imageX + pX] = ApplyMult(new Color(200, 75, 75),
Math.sqrt((pX - imgXHalf)*(pX - imgXHalf) + (i - imgYHalf)*(i - imgYHalf)) / maxDistToCenterScreen).getRGB();
}
}
else if(height > 0) {
int off = (Program.imageY - height) / 2;
for(int i=0; i<height; i++) {
program.pixels[(Program.imageY - (i + off) - 1) * Program.imageX + pX] = ApplyMult(new Color(200, 75, 75),
Math.sqrt((pX - imgXHalf)*(pX - imgXHalf) + (i - imgYHalf)*(i - imgYHalf)) / maxDistToCenterScreen).getRGB();
}
}
break;
}
currX += step;
currZ += stepX;
}
}
else {
while(currX >= 0 && currX < program.Map.length && currZ >= 0 && currZ < program.Map[0].length) {
if(program.Map[(int) currX][(int) currZ].HasRayHit(currX - (int) currX, currZ - (int) currZ)) {
double distance = Math.sqrt(Math.pow(currX - program.CamPos.X, 2) + Math.pow(currZ - program.CamPos.Z, 2));
int height = (int) (Program.imageY / (distance * Math.cos(radPerPixX * (pX - imgXHalf))) / 2.0);
//int height = (int) (Program.imageY / distance / 2.0);
if(height >= Program.imageY) {
for(int i=0; i<Program.imageY; i++) {
program.pixels[i * Program.imageX + pX] = ApplyMult(new Color(200, 75, 75),
Math.sqrt((pX - imgXHalf)*(pX - imgXHalf) + (i - imgYHalf)*(i - imgYHalf)) / maxDistToCenterScreen).getRGB();
}
}
else if(height > 0) {
int off = (Program.imageY - height) / 2;
for(int i=0; i<height; i++) {
program.pixels[(Program.imageY - (i + off) - 1) * Program.imageX + pX] = ApplyMult(new Color(200, 75, 75),
Math.sqrt((pX - imgXHalf)*(pX - imgXHalf) + (i - imgYHalf)*(i - imgYHalf)) / maxDistToCenterScreen).getRGB();
}
}
break;
}
currX += stepZ;
currZ += step;
}
}
}
}
public Color ApplyMult(Color c, double mult) {
//return c;
return new Color((int)(c.getRed() * (1.0 - mult)), (int)(c.getGreen() * (1.0 - mult)), (int)(c.getBlue() * (1.0 - mult)));
}
}