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paulevsGitch 2020-10-14 22:24:53 +03:00
parent 683235ebe9
commit c9346da1ee
4 changed files with 324 additions and 165 deletions
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242
src/main/java/ru/betterend/util/MHelper.java
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@ -1,119 +1,123 @@
package ru.betterend.util;
import java.util.Random;
public class MHelper {
public static final float PI2 = (float) (Math.PI * 2);
private static final int ALPHA = 255 << 24;
public static final Random RANDOM = new Random();
public static int color(int r, int g, int b) {
return ALPHA | (r << 16) | (g << 8) | b;
}
public static int randRange(int min, int max, Random random) {
return min + random.nextInt(max - min + 1);
}
public static double randRange(double min, double max, Random random) {
return min + random.nextDouble() * (max - min);
}
public static float randRange(float min, float max, Random random) {
return min + random.nextFloat() * (max - min);
}
public static byte setBit(byte source, int pos, boolean value) {
return value ? setBitTrue(source, pos) : setBitFalse(source, pos);
}
public static byte setBitTrue(byte source, int pos) {
source |= 1 << pos;
return source;
}
public static byte setBitFalse(byte source, int pos) {
source &= ~(1 << pos);
return source;
}
public static boolean getBit(byte source, int pos) {
return ((source >> pos) & 1) == 1;
}
public static int floor(float x) {
return x < 0 ? (int) (x - 1) : (int) x;
}
public static float wrap(float x, float side) {
return x - floor(x / side) * side;
}
public static int floor(double x) {
return x < 0 ? (int) (x - 1) : (int) x;
}
public static int min(int a, int b) {
return a < b ? a : b;
}
public static int max(int a, int b) {
return a > b ? a : b;
}
public static float min(float a, float b) {
return a < b ? a : b;
}
public static float max(float a, float b) {
return a > b ? a : b;
}
public static float lengthSqr(float x, float y, float z) {
return x * x + y * y + z * z;
}
public static double lengthSqr(double x, double y, double z) {
return x * x + y * y + z * z;
}
public static float length(float x, float y, float z) {
return (float) Math.sqrt(lengthSqr(x, y, z));
}
public static float lengthSqr(float x, float y) {
return x * x + y * y;
}
public static double lengthSqr(double x, double y) {
return x * x + y * y;
}
public static float length(float x, float y) {
return (float) Math.sqrt(lengthSqr(x, y));
}
public static double length(double x, double y) {
return Math.sqrt(lengthSqr(x, y));
}
public static float dot(float x1, float y1, float z1, float x2, float y2, float z2) {
return x1 * x2 + y1 * y2 + z1 * z2;
}
public static float dot(float x1, float y1, float x2, float y2) {
return x1 * x2 + y1 * y2;
}
public static int getSeed(int seed, int x, int y) {
int h = seed + x * 374761393 + y * 668265263;
h = (h ^ (h >> 13)) * 1274126177;
return h ^ (h >> 16);
}
public static int getSeed(int seed, int x, int y, int z) {
int h = seed + x * 374761393 + y * 668265263 + z;
h = (h ^ (h >> 13)) * 1274126177;
return h ^ (h >> 16);
}
}
package ru.betterend.util;
import java.util.Random;
public class MHelper {
public static final float PI2 = (float) (Math.PI * 2);
private static final int ALPHA = 255 << 24;
public static final Random RANDOM = new Random();
public static int color(int r, int g, int b) {
return ALPHA | (r << 16) | (g << 8) | b;
}
public static int randRange(int min, int max, Random random) {
return min + random.nextInt(max - min + 1);
}
public static double randRange(double min, double max, Random random) {
return min + random.nextDouble() * (max - min);
}
public static float randRange(float min, float max, Random random) {
return min + random.nextFloat() * (max - min);
}
public static byte setBit(byte source, int pos, boolean value) {
return value ? setBitTrue(source, pos) : setBitFalse(source, pos);
}
public static byte setBitTrue(byte source, int pos) {
source |= 1 << pos;
return source;
}
public static byte setBitFalse(byte source, int pos) {
source &= ~(1 << pos);
return source;
}
public static boolean getBit(byte source, int pos) {
return ((source >> pos) & 1) == 1;
}
public static int floor(float x) {
return x < 0 ? (int) (x - 1) : (int) x;
}
public static float wrap(float x, float side) {
return x - floor(x / side) * side;
}
public static int floor(double x) {
return x < 0 ? (int) (x - 1) : (int) x;
}
public static int min(int a, int b) {
return a < b ? a : b;
}
public static int max(int a, int b) {
return a > b ? a : b;
}
public static float min(float a, float b) {
return a < b ? a : b;
}
public static float max(float a, float b) {
return a > b ? a : b;
}
public static float max(float a, float b, float c) {
return max(a, max(b, c));
}
public static float lengthSqr(float x, float y, float z) {
return x * x + y * y + z * z;
}
public static double lengthSqr(double x, double y, double z) {
return x * x + y * y + z * z;
}
public static float length(float x, float y, float z) {
return (float) Math.sqrt(lengthSqr(x, y, z));
}
public static float lengthSqr(float x, float y) {
return x * x + y * y;
}
public static double lengthSqr(double x, double y) {
return x * x + y * y;
}
public static float length(float x, float y) {
return (float) Math.sqrt(lengthSqr(x, y));
}
public static double length(double x, double y) {
return Math.sqrt(lengthSqr(x, y));
}
public static float dot(float x1, float y1, float z1, float x2, float y2, float z2) {
return x1 * x2 + y1 * y2 + z1 * z2;
}
public static float dot(float x1, float y1, float x2, float y2) {
return x1 * x2 + y1 * y2;
}
public static int getSeed(int seed, int x, int y) {
int h = seed + x * 374761393 + y * 668265263;
h = (h ^ (h >> 13)) * 1274126177;
return h ^ (h >> 16);
}
public static int getSeed(int seed, int x, int y, int z) {
int h = seed + x * 374761393 + y * 668265263 + z;
h = (h ^ (h >> 13)) * 1274126177;
return h ^ (h >> 16);
}
}