Java Code Examples for java.util.Random#nextFloat()
The following examples show how to use
java.util.Random#nextFloat() .
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Example 1
Source File: BlockMapleLeaveRed.java From Sakura_mod with MIT License | 6 votes |
@SideOnly(Side.CLIENT) public void randomDisplayTick(IBlockState stateIn, World worldIn, BlockPos pos, Random rand) { Blocks.LEAVES.randomDisplayTick(stateIn, worldIn, pos, rand); if (rand.nextInt(40) == 0) { int j = rand.nextInt(2) * 2 - 1; int k = rand.nextInt(2) * 2 - 1; double d0 = pos.getX() + 0.5D + 0.25D * j; double d1 = pos.getY() - 0.15D; double d2 = pos.getZ() + 0.5D + 0.25D * k; double d3 = rand.nextFloat() * j * 0.1D; double d4 = ((rand.nextFloat()) * 0.055D) + 0.015D; double d5 = rand.nextFloat() * k * 0.1D; SakuraMain.proxy.spawnParticle(SakuraParticleType.MAPLERED, d0, d1, d2, d3, -d4, d5); } }
Example 2
Source File: AnimationActivity.java From subsampling-scale-image-view with Apache License 2.0 | 6 votes |
private void play() { Random random = new Random(); if (view.isReady()) { float maxScale = view.getMaxScale(); float minScale = view.getMinScale(); float scale = (random.nextFloat() * (maxScale - minScale)) + minScale; PointF center = new PointF(random.nextInt(view.getSWidth()), random.nextInt(view.getSHeight())); view.setPin(center); AnimationBuilder animationBuilder = view.animateScaleAndCenter(scale, center); if (getPage() == 3) { animationBuilder.withDuration(2000).withEasing(EASE_OUT_QUAD).withInterruptible(false).start(); } else { animationBuilder.withDuration(750).start(); } } }
Example 3
Source File: ParallelSorting.java From jdk8u-jdk with GNU General Public License v2.0 | 6 votes |
void build(double[] x, int a, int g, int z, int n, int p, Random random) { int fromIndex = 0; double negativeValue = -random.nextFloat(); double positiveValue = random.nextFloat(); writeValue(x, negativeValue, fromIndex, n); fromIndex += n; writeValue(x, -0.0d, fromIndex, g); fromIndex += g; writeValue(x, 0.0d, fromIndex, z); fromIndex += z; writeValue(x, positiveValue, fromIndex, p); fromIndex += p; writeValue(x, Double.NaN, fromIndex, a); }
Example 4
Source File: ByteStreamSplitValuesReaderTest.java From parquet-mr with Apache License 2.0 | 6 votes |
@Test public void testRandomInput() throws Exception { Random rand = new Random(1337); final int numElements = 256; byte[] byteData = new byte[numElements * 4]; float[] values = new float[numElements]; for (int i = 0; i < numElements; ++i) { float f = rand.nextFloat() * 1024.0f; values[i] = f; int fAsInt = Float.floatToIntBits(f); byteData[i] = (byte) (fAsInt & 0xFF); byteData[numElements + i] = (byte) ((fAsInt >> 8) & 0xFF); byteData[numElements * 2 + i] = (byte) ((fAsInt >> 16) & 0xFF); byteData[numElements * 3 + i] = (byte) ((fAsInt >> 24) & 0xFF); } testReader(byteData, values); }
Example 5
Source File: RawIndexCreatorTest.java From incubator-pinot with Apache License 2.0 | 6 votes |
/** * Helper method that generates a random value for a given data type. * * @param dataType Data type for which to generate the random value * @return Random value for the data type */ public static Object getRandomValue(Random random, FieldSpec.DataType dataType) { switch (dataType) { case INT: return random.nextInt(); case LONG: return random.nextLong(); case FLOAT: return random.nextFloat(); case DOUBLE: return random.nextDouble(); case STRING: return StringUtil .sanitizeStringValue(RandomStringUtils.random(random.nextInt(MAX_STRING_LENGTH)), Integer.MAX_VALUE); default: throw new UnsupportedOperationException("Unsupported data type for random value generator: " + dataType); } }
Example 6
Source File: BlockSoyMilk.java From TofuCraftReload with MIT License | 6 votes |
@Override @SideOnly(Side.CLIENT) public void randomDisplayTick(IBlockState state, World world, BlockPos pos, Random rand) { super.randomDisplayTick(state, world, pos, rand); if (world.getBlockState(pos.up()).getMaterial() != Material.WATER && rand.nextInt(3) == 0) { if (this.getHeatStrength(world, pos) > 0) { float steamX = pos.getX() + 0.5F; float steamY = pos.getY() + 0.9F; float steamZ = pos.getZ() + 0.5F; float steamRandX = rand.nextFloat() * 0.6F - 0.3F; float steamRandZ = rand.nextFloat() * 0.6F - 0.3F; double gRand1 = rand.nextGaussian() * 0.01D; double gRand2 = rand.nextGaussian() * 0.01D; double gRand3 = rand.nextGaussian() * 0.01D; world.spawnParticle(EnumParticleTypes.EXPLOSION_NORMAL, (steamX + steamRandX), steamY, (steamZ + steamRandZ), gRand1, gRand2, gRand3); } } }
Example 7
Source File: TypeManagerO.java From Math-Game with Apache License 2.0 | 6 votes |
/** * @return A randomly generated ArrayList of fractions (stored as doubles) */ public ArrayList<Double> randomFractionValues() { Random generator = new Random(); Random fractionRand = new Random(); currentRowNumber = (int)(generator.nextFloat() * rowCount); System.out.println("Current row: " + (currentRowNumber + 1)); currentRow = currentSheet.getRow(currentRowNumber); ArrayList<Double> cardValues = new ArrayList<Double>(); for (int x = 0; x < 6; x++) { cardValues.add(((int)(fractionRand.nextDouble() * 10)) / 10.0); } int RandomInsert1 = (int)(generator.nextFloat() * 6); int RandomInsert2; do { RandomInsert2 = (int)(generator.nextFloat() * 6); } while (RandomInsert2 == RandomInsert1); // The two values must be in distinct NumberCards (i.e. not the same card!) cardValues.set(RandomInsert1, convertFractiontoDecimal(currentRow.getCell(1).getStringCellValue())); cardValues.set(RandomInsert2, convertFractiontoDecimal(currentRow.getCell(3).getStringCellValue())); return cardValues; }
Example 8
Source File: ParallelSorting.java From streamsupport with GNU General Public License v2.0 | 6 votes |
void build(double[] x, int a, int g, int z, int n, int p, Random random) { int fromIndex = 0; double negativeValue = -random.nextFloat(); double positiveValue = random.nextFloat(); writeValue(x, negativeValue, fromIndex, n); fromIndex += n; writeValue(x, -0.0d, fromIndex, g); fromIndex += g; writeValue(x, 0.0d, fromIndex, z); fromIndex += z; writeValue(x, positiveValue, fromIndex, p); fromIndex += p; writeValue(x, Double.NaN, fromIndex, a); }
Example 9
Source File: PlayerOptionsManager.java From SkyWarsReloaded with GNU General Public License v3.0 | 5 votes |
private float getData(ParticleEffect p) { Random random = new Random(); float data = p.getData(); if (p.getData() == -1) { data = random.nextFloat(); } return data; }
Example 10
Source File: GLBubble.java From Android-AudioRecorder-App with Apache License 2.0 | 5 votes |
public GLBubble(float[] color, float startX, float fromY, float toY, float size, Random random) { super(color); this.random = random; update(startX, fromY, toY, size); float[] vertices = new float[(POINTS_PER_CIRCLE + 1) * COORDS_PER_VERTEX]; short[] indices = new short[POINTS_PER_CIRCLE * COORDS_PER_VERTEX]; int i; for (i = 0; i < indices.length / COORDS_PER_VERTEX - 1; i++) { indices[COORDS_PER_VERTEX * i] = 0; indices[COORDS_PER_VERTEX * i + 1] = (short) (i + 1); indices[COORDS_PER_VERTEX * i + 2] = (short) (i + 2); } // connect first and last elements indices[COORDS_PER_VERTEX * i] = 0; indices[COORDS_PER_VERTEX * i + 1] = (short) (i + 1); indices[COORDS_PER_VERTEX * i + 2] = (short) 1; ByteBuffer verticesByteBuffer = ByteBuffer.allocateDirect(vertices.length * SIZE_OF_FLOAT); verticesByteBuffer.order(ByteOrder.nativeOrder()); vertexBuffer = verticesByteBuffer.asFloatBuffer(); vertexBuffer.put(vertices); vertexBuffer.position(0); ByteBuffer indicesByteBuffer = ByteBuffer.allocateDirect(indices.length * SIZE_OF_SHORT); indicesByteBuffer.order(ByteOrder.nativeOrder()); shortBuffer = indicesByteBuffer.asShortBuffer(); shortBuffer.put(indices); shortBuffer.position(0); angle = (float) (random.nextFloat() * 2 * Math.PI); }
Example 11
Source File: MusicWaveView.java From PLDroidShortVideo with Apache License 2.0 | 5 votes |
private void generateWaveArray(){ int count = mWidth / (WAVE_WIDTH + WAVE_OFFSET); mWaveArray = new float[count]; Random random = new Random(); random.setSeed(mMusicDurationMs); for(int i = 0; i < count; i++){ mWaveArray[i] = random.nextFloat(); if(mWaveArray[i] < MIN_WAVE_RATE){ mWaveArray[i] += MIN_WAVE_RATE; } } }
Example 12
Source File: ItemBaseOmnitool.java From Electro-Magic-Tools with GNU General Public License v3.0 | 5 votes |
@Override public boolean onBlockStartBreak(ItemStack stack, int x, int y, int z, EntityPlayer player) { if (player.worldObj.isRemote) { return false; } Block block = player.worldObj.getBlock(x, y, z); if (block instanceof IShearable) { IShearable target = (IShearable) block; if (target.isShearable(stack, player.worldObj, x, y, z)) { ArrayList<ItemStack> drops = target.onSheared(stack, player.worldObj, x, y, z, EnchantmentHelper.getEnchantmentLevel(Enchantment.fortune.effectId, stack)); Random rand = new Random(); for (ItemStack drop : drops) { float f = 0.7F; double d = (double) (rand.nextFloat() * f) + (double) (1.0F - f) * 0.5D; double d1 = (double) (rand.nextFloat() * f) + (double) (1.0F - f) * 0.5D; double d2 = (double) (rand.nextFloat() * f) + (double) (1.0F - f) * 0.5D; EntityItem entityitem = new EntityItem(player.worldObj, (double) x + d, (double) y + d1, (double) z + d2, drop); entityitem.delayBeforeCanPickup = 10; player.worldObj.spawnEntityInWorld(entityitem); } stack.damageItem(1, player); player.addStat(StatList.mineBlockStatArray[Block.getIdFromBlock(block)], 1); } } return false; }
Example 13
Source File: GooTransition2D.java From Pixelitor with GNU General Public License v3.0 | 5 votes |
/** * Creates a new goo transition. * * @param columns the number of columns to use. */ public GooTransition2D(int columns) { Random r = new Random(); offset = new float[columns]; accel = new float[columns]; boolean ok = false; long seed = System.currentTimeMillis(); while (!ok) { seed++; r.setSeed(seed); ok = true; for (int a = 0; a < columns && ok; a++) { offset[a] = -r.nextFloat(); accel[a] = 4 * r.nextFloat() + 0.2f; if (accel[a] + 1 + offset[a] < 1.2) { ok = false; } } if (ok) { //make sure at least one strand takes up the whole time t=[0,1] boolean atLeastOneSlowOne = false; for (int a = 0; a < columns && !atLeastOneSlowOne; a++) { atLeastOneSlowOne = accel[a] + 1 + offset[a] < 1.3; } ok = atLeastOneSlowOne; } } }
Example 14
Source File: AccelerationInitializer.java From ParticleLayout with Apache License 2.0 | 5 votes |
@Override public void initParticle(Particle p, Random r) { float angle = mMinAngle; if (mMaxAngle != mMinAngle) { angle = r.nextInt(mMaxAngle - mMinAngle) + mMinAngle; } float angleInRads = (float) (angle*Math.PI/180f); float value = r.nextFloat()*(mMaxValue-mMinValue)+mMinValue; p.mAccelerationX = (float) (value * Math.cos(angleInRads)); p.mAccelerationY = (float) (value * Math.sin(angleInRads)); }
Example 15
Source File: EntityPathNavigateDrone.java From PneumaticCraft with GNU General Public License v3.0 | 5 votes |
@Override public void onUpdateNavigation(){ if(isGoingToTeleport()) { if(teleportCounter == 0 || teleportCounter == 60) { NetworkHandler.sendToAllAround(new PacketPlaySound(Sounds.HUD_INIT, pathfindingEntity.posX, pathfindingEntity.posY, pathfindingEntity.posZ, 0.1F, teleportCounter == 0 ? 0.7F : 1F, true), pathfindingEntity.worldObj); } if(teleportCounter < TELEPORT_TICKS - 40) { Random rand = pathfindingEntity.getRNG(); float f = (rand.nextFloat() - 0.5F) * 0.02F * teleportCounter; float f1 = (rand.nextFloat() - 0.5F) * 0.02F * teleportCounter; float f2 = (rand.nextFloat() - 0.5F) * 0.02F * teleportCounter; NetworkHandler.sendToAllAround(new PacketSpawnParticle("portal", pathfindingEntity.posX, pathfindingEntity.posY, pathfindingEntity.posZ, f, f1, f2), pathfindingEntity.worldObj); } if(++teleportCounter > TELEPORT_TICKS) { if(pathfindingEntity.isBlockValidPathfindBlock(telX, telY, telZ)) { teleport(); } teleportCounter = -1; setPath(null, 0); pathfindingEntity.getMoveHelper().setMoveTo(telX, telY, telZ, pathfindingEntity.getSpeed()); pathfindingEntity.addAir(null, -10000); } } else { super.onUpdateNavigation(); } }
Example 16
Source File: Avalanche.java From ud405 with MIT License | 5 votes |
public void update(float delta, Viewport viewport){ Random random = new Random(); if (random.nextFloat() < delta * SPAWNS_PER_SECOND){ boulders.add(new Boulder(viewport)); } for (int i = 0; i < boulders.size; i++){ Boulder boulder = boulders.get(i); boulder.update(delta); if (boulder.isBelowScreen()){ boulders.removeIndex(i); } } }
Example 17
Source File: NetworkStatsHistory.java From android_9.0.0_r45 with Apache License 2.0 | 4 votes |
public static long randomLong(Random r, long start, long end) { return (long) (start + (r.nextFloat() * (end - start))); }
Example 18
Source File: SpeeddByComponentsInitializer.java From ParticleLayout with Apache License 2.0 | 4 votes |
@Override public void initParticle(Particle p, Random r) { p.mSpeedX = r.nextFloat()*(mMaxSpeedX-mMinSpeedX)+mMinSpeedX; p.mSpeedY = r.nextFloat()*(mMaxSpeedY-mMinSpeedY)+mMinSpeedY; }
Example 19
Source File: BlockMapleSaplingGreen.java From Sakura_mod with MIT License | 4 votes |
@Override public boolean canUseBonemeal(World worldIn, Random rand, BlockPos pos, IBlockState state) { return rand.nextFloat() < 0.5; }
Example 20
Source File: TestBM25Similarity.java From lucene-solr with Apache License 2.0 | 4 votes |
@Override protected Similarity getSimilarity(Random random) { // term frequency normalization parameter k1 final float k1; switch (random.nextInt(4)) { case 0: // minimum value k1 = 0; break; case 1: // tiny value k1 = Float.MIN_VALUE; break; case 2: // maximum value // upper bounds on individual term's score is 43.262806 * (k1 + 1) * boost // we just limit the test to "reasonable" k1 values but don't enforce this anywhere. k1 = Integer.MAX_VALUE; break; default: // random value k1 = Integer.MAX_VALUE * random.nextFloat(); break; } // length normalization parameter b [0 .. 1] final float b; switch (random.nextInt(4)) { case 0: // minimum value b = 0; break; case 1: // tiny value b = Float.MIN_VALUE; break; case 2: // maximum value b = 1; break; default: // random value b = random.nextFloat(); break; } return new BM25Similarity(k1, b); }