Java Vec3d類代碼示例

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/**
 * Renders broken item particles using the given ItemStack
 */
public void renderBrokenItemStack(ItemStack stack)
{
    this.playSound(SoundEvents.ENTITY_ITEM_BREAK, 0.8F, 0.8F + this.world.rand.nextFloat() * 0.4F);

    for (int i = 0; i < 5; ++i)
    {
        Vec3d vec3d = new Vec3d(((double)this.rand.nextFloat() - 0.5D) * 0.1D, Math.random() * 0.1D + 0.1D, 0.0D);
        vec3d = vec3d.rotatePitch(-this.rotationPitch * 0.017453292F);
        vec3d = vec3d.rotateYaw(-this.rotationYaw * 0.017453292F);
        double d0 = (double)(-this.rand.nextFloat()) * 0.6D - 0.3D;
        Vec3d vec3d1 = new Vec3d(((double)this.rand.nextFloat() - 0.5D) * 0.3D, d0, 0.6D);
        vec3d1 = vec3d1.rotatePitch(-this.rotationPitch * 0.017453292F);
        vec3d1 = vec3d1.rotateYaw(-this.rotationYaw * 0.017453292F);
        vec3d1 = vec3d1.addVector(this.posX, this.posY + (double)this.getEyeHeight(), this.posZ);
        this.world.spawnParticle(EnumParticleTypes.ITEM_CRACK, vec3d1.xCoord, vec3d1.yCoord, vec3d1.zCoord, vec3d.xCoord, vec3d.yCoord + 0.05D, vec3d.zCoord, new int[] {Item.getIdFromItem(stack.getItem())});
    }
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
private void generateBranch(World world, Random rand, BlockPos trunkPos, Vec3d endPos) {
    Vec3d curr = new Vec3d(trunkPos);
    Vec3d next = next(world, curr, endPos.subtract(curr).normalize(), endPos, trunkPos);
    BlockPos prev;
    do {
        BlockPos currBlock = new BlockPos(curr);
        Vec3d dir = endPos.subtract(curr).normalize();
        prev = currBlock;
        curr = next;
        next = next(world, curr, dir, endPos, trunkPos);

        IBlockState state = (xzEqual(currBlock, trunkPos) ? LOG : LOG.withProperty(BlockLog.LOG_AXIS, getLogAxis(world, currBlock, dir)));
        setBlockInWorld(world, currBlock, state);

        // check to avoid long straight up branches
        BlockPos nextBlock = new BlockPos(next);
        if (endPos.squareDistanceTo(next) > Math.sqrt(3) && xzEqual(prev, currBlock) && xzEqual(currBlock, nextBlock)) {
            next = next.addVector(rand.nextBoolean() ? -1 : 1, 0, rand.nextBoolean() ? -1 : 1);
        }
    } while (endPos.squareDistanceTo(curr) > Math.sqrt(3));

    generateLeaves(world, rand, curr);
    generateLeaves(world, rand, new Vec3d(prev));
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
@Override
public void onExecutionStart(EntityPlayer player)
{
	if (player.getActiveItemStack().isEmpty())
	{
		return;
	}
	
	Vec3d look = player.getLookVec().scale(5);
	Vec3d pos = player.getPositionVector();
	List<EntityLivingBase> targets = Helpers.rayTraceEntities(player.world, pos.addVector(0, player.getEyeHeight(), 0), look, Optional.of(e -> e != player), EntityLivingBase.class);
	EntityLivingBase assumedToBeLookedAt = Helpers.getClosest(targets, player);
	if (assumedToBeLookedAt != null)
	{
		if (!player.world.isRemote)
		{
			assumedToBeLookedAt.addPotionEffect(new PotionEffect(ExPPotions.stunned, 40, 0, false, false));
		}
		
		player.world.playSound(player, player.getPosition(), SoundEvents.ENTITY_PLAYER_ATTACK_KNOCKBACK, SoundCategory.PLAYERS, 1, 0.1F);
		Vec3d targetPos = assumedToBeLookedAt.getPositionVector();
		assumedToBeLookedAt.knockBack(player, 2, pos.x - targetPos.x, pos.z - targetPos.z);
	}
	
	player.getActiveItemStack().damageItem(3, player);
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
protected void pathFollow()
{
    Vec3d vec3d = this.getEntityPosition();
    float f = this.theEntity.width * this.theEntity.width;
    int i = 6;

    if (vec3d.squareDistanceTo(this.currentPath.getVectorFromIndex(this.theEntity, this.currentPath.getCurrentPathIndex())) < (double)f)
    {
        this.currentPath.incrementPathIndex();
    }

    for (int j = Math.min(this.currentPath.getCurrentPathIndex() + 6, this.currentPath.getCurrentPathLength() - 1); j > this.currentPath.getCurrentPathIndex(); --j)
    {
        Vec3d vec3d1 = this.currentPath.getVectorFromIndex(this.theEntity, j);

        if (vec3d1.squareDistanceTo(vec3d) <= 36.0D && this.isDirectPathBetweenPoints(vec3d, vec3d1, 0, 0, 0))
        {
            this.currentPath.setCurrentPathIndex(j);
            break;
        }
    }

    this.checkForStuck(vec3d);
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
@Override
	@SideOnly(Side.CLIENT)
	public Vec3d getFogColor(float p_76562_1_, float p_76562_2_)
	{
//		generateLightBrightnessTable();
//        float f = MathHelper.cos(p_76562_1_ * ((float)Math.PI * 2F)) * 2.0F + 0.5F;
//        f = MathHelper.clamp(f, 0.0F, 1.0F);
//        int color = 0;
//        float f1 = ((color >> 16) & 0xFF) * 255;
//        float f2 = ((color >> 8) & 0xFF) * 255;
//        float f3 = ((color >> 0) & 0xFF) * 255;
//        f1 = f1 * (f * 0.0F + 0.15F);
//        f2 = f2 * (f * 0.0F + 0.15F);
//        f3 = f3 * (f * 0.0F + 0.15F);
//        return new Vec3d((double)f1, (double)f2, (double)f3);
		return Vec3d.ZERO;
	}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/**
 * Updates the task
 */
public void updateTask()
{
    --this.playTime;

    if (this.targetVillager != null)
    {
        if (this.villagerObj.getDistanceSqToEntity(this.targetVillager) > 4.0D)
        {
            this.villagerObj.getNavigator().tryMoveToEntityLiving(this.targetVillager, this.speed);
        }
    }
    else if (this.villagerObj.getNavigator().noPath())
    {
        Vec3d vec3d = RandomPositionGenerator.findRandomTarget(this.villagerObj, 16, 3);

        if (vec3d == null)
        {
            return;
        }

        this.villagerObj.getNavigator().tryMoveToXYZ(vec3d.xCoord, vec3d.yCoord, vec3d.zCoord, this.speed);
    }
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/**
 * Returns true if an entity does not collide with any solid blocks at the position.
 */
private boolean isPositionClear(int p_179692_1_, int p_179692_2_, int p_179692_3_, int p_179692_4_, int p_179692_5_, int p_179692_6_, Vec3d p_179692_7_, double p_179692_8_, double p_179692_10_)
{
    for (BlockPos blockpos : BlockPos.getAllInBox(new BlockPos(p_179692_1_, p_179692_2_, p_179692_3_), new BlockPos(p_179692_1_ + p_179692_4_ - 1, p_179692_2_ + p_179692_5_ - 1, p_179692_3_ + p_179692_6_ - 1)))
    {
        double d0 = (double)blockpos.getX() + 0.5D - p_179692_7_.xCoord;
        double d1 = (double)blockpos.getZ() + 0.5D - p_179692_7_.zCoord;

        if (d0 * p_179692_8_ + d1 * p_179692_10_ >= 0.0D)
        {
            Block block = this.worldObj.getBlockState(blockpos).getBlock();

            if (!block.isPassable(this.worldObj, blockpos))
            {
                return false;
            }
        }
    }

    return true;
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/**
 * Marks the entity as being inside a portal, activating teleportation logic in onEntityUpdate() in the following
 * tick(s).
 */
public void setPortal(BlockPos pos)
{
    if (this.timeUntilPortal > 0)
    {
        this.timeUntilPortal = this.getPortalCooldown();
    }
    else
    {
        if (!this.worldObj.isRemote && !pos.equals(this.lastPortalPos))
        {
            this.lastPortalPos = new BlockPos(pos);
            BlockPattern.PatternHelper blockpattern$patternhelper = Blocks.PORTAL.createPatternHelper(this.worldObj, this.lastPortalPos);
            double d0 = blockpattern$patternhelper.getForwards().getAxis() == EnumFacing.Axis.X ? (double)blockpattern$patternhelper.getFrontTopLeft().getZ() : (double)blockpattern$patternhelper.getFrontTopLeft().getX();
            double d1 = blockpattern$patternhelper.getForwards().getAxis() == EnumFacing.Axis.X ? this.posZ : this.posX;
            d1 = Math.abs(MathHelper.pct(d1 - (double)(blockpattern$patternhelper.getForwards().rotateY().getAxisDirection() == EnumFacing.AxisDirection.NEGATIVE ? 1 : 0), d0, d0 - (double)blockpattern$patternhelper.getWidth()));
            double d2 = MathHelper.pct(this.posY - 1.0D, (double)blockpattern$patternhelper.getFrontTopLeft().getY(), (double)(blockpattern$patternhelper.getFrontTopLeft().getY() - blockpattern$patternhelper.getHeight()));
            this.lastPortalVec = new Vec3d(d1, d2, 0.0D);
            this.teleportDirection = blockpattern$patternhelper.getForwards();
        }

        this.inPortal = true;
    }
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/**
 * Returns whether the EntityAIBase should begin execution.
 */
public boolean shouldExecute()
{
    if (!this.horseHost.isTame() && this.horseHost.isBeingRidden())
    {
        Vec3d vec3d = RandomPositionGenerator.findRandomTarget(this.horseHost, 5, 4);

        if (vec3d == null)
        {
            return false;
        }
        else
        {
            this.targetX = vec3d.xCoord;
            this.targetY = vec3d.yCoord;
            this.targetZ = vec3d.zCoord;
            return true;
        }
    }
    else
    {
        return false;
    }
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/**
 * Renders broken item particles using the given ItemStack
 */
public void renderBrokenItemStack(ItemStack stack)
{
    this.playSound(SoundEvents.ENTITY_ITEM_BREAK, 0.8F, 0.8F + this.worldObj.rand.nextFloat() * 0.4F);

    for (int i = 0; i < 5; ++i)
    {
        Vec3d vec3d = new Vec3d(((double)this.rand.nextFloat() - 0.5D) * 0.1D, Math.random() * 0.1D + 0.1D, 0.0D);
        vec3d = vec3d.rotatePitch(-this.rotationPitch * 0.017453292F);
        vec3d = vec3d.rotateYaw(-this.rotationYaw * 0.017453292F);
        double d0 = (double)(-this.rand.nextFloat()) * 0.6D - 0.3D;
        Vec3d vec3d1 = new Vec3d(((double)this.rand.nextFloat() - 0.5D) * 0.3D, d0, 0.6D);
        vec3d1 = vec3d1.rotatePitch(-this.rotationPitch * 0.017453292F);
        vec3d1 = vec3d1.rotateYaw(-this.rotationYaw * 0.017453292F);
        vec3d1 = vec3d1.addVector(this.posX, this.posY + (double)this.getEyeHeight(), this.posZ);
        this.worldObj.spawnParticle(EnumParticleTypes.ITEM_CRACK, vec3d1.xCoord, vec3d1.yCoord, vec3d1.zCoord, vec3d.xCoord, vec3d.yCoord + 0.05D, vec3d.zCoord, new int[] {Item.getIdFromItem(stack.getItem())});
    }
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
private void renderBase(int xPos, int yPos, float scale, float rotX, float rotY)
{
	GL11.glPushMatrix();

	GL11.glTranslatef(xPos, yPos, 200.0F);
	GL11.glScalef(-scale, scale, scale);

	GL11.glRotatef(-180.0F, 1.0F, 0.0F, 0.0F);
	GL11.glRotatef(-180.0F, 0.0F, 1.0F, 0.0F);

	GL11.glRotatef(-((float)Math.atan((double)(rotY / 40.0F))) * 20.0F + verticalRotation , 1.0F, 0.0F, 0.0F);
	GL11.glRotatef(((float)Math.atan((double)(rotX / 40.0F))) * 20.0F + horizontalRotation, 0.0F, -1.0F, 0.0F);

	GL11.glTranslatef(gridMinX + 0.5F, 0, gridMinZ + 0.5F);
	for(int z = gridMinZ; z < gridMaxZ; z++)
	{
		for(int x = gridMinX; x < gridMaxX; x++)
		{
			GL11.glPushMatrix();
			drawRect(new Vec3d(0.5, 0, -0.5), new Vec3d(-0.5, 0, -0.5), new Vec3d(0.5, 0, 0.5), new Vec3d(-0.5, 0, 0.5), 0xFF0000, 0.5f, 2.0f);
			GL11.glPopMatrix();
			GL11.glTranslatef(1.0F, 0.0F, 0.0F);
		}
		GL11.glTranslatef(gridMinX - gridMaxX, 0.0F, 1.0F);
	}

	GL11.glPopMatrix();
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
@Override
protected void tick() {
	if(!checkForCompleation(true) && isActive())
		deactivate();
	else if(isActive())
	{
		for(int x = -1; x < 2; x++)
			for(int z = -1; z < 2; z++)
				if(!(x == 0 && z == 0))
					for(int i = 0; i < 8; i ++)
					{
						Vec3d pos = new Vec3d(this.pos.add(x, 0, z)).addVector(randPos(), -0.1, randPos());
						HarshenCastle.proxy.spawnParticle(EnumHarshenParticle.BLOOD, pos, 
								new Vec3d((this.pos.getX() + 0.5 - pos.x) / 20D, (this.pos.getY() + 0.5 - pos.y) / 20D, (this.pos.getZ() + 0.5 - pos.z) / 20D), 1f, false);

					}
		
	}	
	else if(checkForCompleation(false))
		activateRecipe();			
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
@Nullable
public RayTraceResult rayTrace(double blockReachDistance, float partialTicks)
{
    Vec3d vec3d = this.getPositionEyes(partialTicks);
    Vec3d vec3d1 = this.getLook(partialTicks);
    Vec3d vec3d2 = vec3d.addVector(vec3d1.xCoord * blockReachDistance, vec3d1.yCoord * blockReachDistance, vec3d1.zCoord * blockReachDistance);
    return this.world.rayTraceBlocks(vec3d, vec3d2, false, false, true);
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
/** Can the entity be seen? */
private boolean canEntityBeSeen(Entity e, BlockPos pos) {
	if(!(e instanceof EntityPlayer && ((EntityPlayer)e).capabilities.disableDamage)) {
	Vec3d pos2 = new Vec3d(pos.getX() + 0.5, pos.getY() + 0.5, pos.getZ() + 0.5);
	return e.world.rayTraceBlocks(new Vec3d(pos2.x + 1, pos2.y, pos2.z + 0), new Vec3d(e.posX, e.posY + e.getEyeHeight(), e.posZ)) == null || 
			e.world.rayTraceBlocks(new Vec3d(pos2.x + 0, pos2.y, pos2.z + 1), new Vec3d(e.posX, e.posY + e.getEyeHeight(), e.posZ)) == null || 
			e.world.rayTraceBlocks(new Vec3d(pos2.x - 1, pos2.y, pos2.z + 0), new Vec3d(e.posX, e.posY + e.getEyeHeight(), e.posZ)) == null || 
			e.world.rayTraceBlocks(new Vec3d(pos2.x + 0, pos2.y, pos2.z - 1), new Vec3d(e.posX, e.posY + e.getEyeHeight(), e.posZ)) == null; 
	} else {
		return false;
	}
}
 

import net.minecraft.util.math.Vec3d; //導入依賴的package包/類
public static float getAngleToClientRotation(Vec3d vec)
{
	float[] needed = getNeededRotations(vec);
	
	float diffYaw =
		WMath.wrapDegrees(WMinecraft.getPlayer().rotationYaw) - needed[0];
	float diffPitch =
		WMath.wrapDegrees(WMinecraft.getPlayer().rotationPitch) - needed[1];
	
	float angle =
		(float)Math.sqrt(diffYaw * diffYaw + diffPitch * diffPitch);
	
	return angle;
}