Java Vec3類代碼示例

import net.minecraft.util.Vec3; //導入依賴的package包/類
/**
 * Checks to see if this enderman should be attacking this player
 */
private boolean shouldAttackPlayer(EntityPlayer player)
{
    ItemStack itemstack = player.inventory.armorInventory[3];

    if (itemstack != null && itemstack.getItem() == Item.getItemFromBlock(Blocks.pumpkin))
    {
        return false;
    }
    else
    {
        Vec3 vec3 = player.getLook(1.0F).normalize();
        Vec3 vec31 = new Vec3(this.posX - player.posX, this.getEntityBoundingBox().minY + (double)(this.height / 2.0F) - (player.posY + (double)player.getEyeHeight()), this.posZ - player.posZ);
        double d0 = vec31.lengthVector();
        vec31 = vec31.normalize();
        double d1 = vec3.dotProduct(vec31);
        return d1 > 1.0D - 0.025D / d0 ? player.canEntityBeSeen(this) : false;
    }
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
protected MovingObjectPosition getMovingObjectPositionFromPlayer(World worldIn, EntityPlayer playerIn, boolean useLiquids)
{
    float f = playerIn.rotationPitch;
    float f1 = playerIn.rotationYaw;
    double d0 = playerIn.posX;
    double d1 = playerIn.posY + (double)playerIn.getEyeHeight();
    double d2 = playerIn.posZ;
    Vec3 vec3 = new Vec3(d0, d1, d2);
    float f2 = MathHelper.cos(-f1 * 0.017453292F - (float)Math.PI);
    float f3 = MathHelper.sin(-f1 * 0.017453292F - (float)Math.PI);
    float f4 = -MathHelper.cos(-f * 0.017453292F);
    float f5 = MathHelper.sin(-f * 0.017453292F);
    float f6 = f3 * f4;
    float f7 = f2 * f4;
    double d3 = 5.0D;
    Vec3 vec31 = vec3.addVector((double)f6 * d3, (double)f5 * d3, (double)f7 * d3);
    return worldIn.rayTraceBlocks(vec3, vec31, useLiquids, !useLiquids, false);
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
/**
 * Updates the current render info and camera location based on entity look angles and 1st/3rd person view mode
 */
public static void updateRenderInfo(EntityPlayer entityplayerIn, boolean p_74583_1_)
{
    GlStateManager.getFloat(2982, MODELVIEW);
    GlStateManager.getFloat(2983, PROJECTION);
    GL11.glGetInteger(GL11.GL_VIEWPORT, VIEWPORT);
    float f = (float)((VIEWPORT.get(0) + VIEWPORT.get(2)) / 2);
    float f1 = (float)((VIEWPORT.get(1) + VIEWPORT.get(3)) / 2);
    GLU.gluUnProject(f, f1, 0.0F, MODELVIEW, PROJECTION, VIEWPORT, OBJECTCOORDS);
    position = new Vec3((double)OBJECTCOORDS.get(0), (double)OBJECTCOORDS.get(1), (double)OBJECTCOORDS.get(2));
    int i = p_74583_1_ ? 1 : 0;
    float f2 = entityplayerIn.rotationPitch;
    float f3 = entityplayerIn.rotationYaw;
    rotationX = MathHelper.cos(f3 * (float)Math.PI / 180.0F) * (float)(1 - i * 2);
    rotationZ = MathHelper.sin(f3 * (float)Math.PI / 180.0F) * (float)(1 - i * 2);
    rotationYZ = -rotationZ * MathHelper.sin(f2 * (float)Math.PI / 180.0F) * (float)(1 - i * 2);
    rotationXY = rotationX * MathHelper.sin(f2 * (float)Math.PI / 180.0F) * (float)(1 - i * 2);
    rotationXZ = MathHelper.cos(f2 * (float)Math.PI / 180.0F);
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
private Vec3 findPossibleShelter()
{
    Random random = this.theCreature.getRNG();
    BlockPos blockpos = new BlockPos(this.theCreature.posX, this.theCreature.getEntityBoundingBox().minY, this.theCreature.posZ);

    for (int i = 0; i < 10; ++i)
    {
        BlockPos blockpos1 = blockpos.add(random.nextInt(20) - 10, random.nextInt(6) - 3, random.nextInt(20) - 10);

        if (!this.theWorld.canSeeSky(blockpos1) && this.theCreature.getBlockPathWeight(blockpos1) < 0.0F)
        {
            return new Vec3((double)blockpos1.getX(), (double)blockpos1.getY(), (double)blockpos1.getZ());
        }
    }

    return null;
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
/**
 * Returns whether the EntityAIBase should begin execution.
 */
public boolean shouldExecute()
{
    if (this.theEntity.isWithinHomeDistanceCurrentPosition())
    {
        return false;
    }
    else
    {
        BlockPos blockpos = this.theEntity.getHomePosition();
        Vec3 vec3 = RandomPositionGenerator.findRandomTargetBlockTowards(this.theEntity, 16, 7, new Vec3((double)blockpos.getX(), (double)blockpos.getY(), (double)blockpos.getZ()));

        if (vec3 == null)
        {
            return false;
        }
        else
        {
            this.movePosX = vec3.xCoord;
            this.movePosY = vec3.yCoord;
            this.movePosZ = vec3.zCoord;
            return true;
        }
    }
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
protected void pathFollow()
{
    Vec3 vec3 = this.getEntityPosition();
    float f = this.theEntity.width * this.theEntity.width;
    int i = 6;

    if (vec3.squareDistanceTo(this.currentPath.getVectorFromIndex(this.theEntity, this.currentPath.getCurrentPathIndex())) < (double)f)
    {
        this.currentPath.incrementPathIndex();
    }

    for (int j = Math.min(this.currentPath.getCurrentPathIndex() + i, this.currentPath.getCurrentPathLength() - 1); j > this.currentPath.getCurrentPathIndex(); --j)
    {
        Vec3 vec31 = this.currentPath.getVectorFromIndex(this.theEntity, j);

        if (vec31.squareDistanceTo(vec3) <= 36.0D && this.isDirectPathBetweenPoints(vec3, vec31, 0, 0, 0))
        {
            this.currentPath.setCurrentPathIndex(j);
            break;
        }
    }

    this.checkForStuck(vec3);
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
public static Vec3 getWorldSkyColor(Vec3 p_getWorldSkyColor_0_, WorldClient p_getWorldSkyColor_1_, Entity p_getWorldSkyColor_2_, float p_getWorldSkyColor_3_)
{
    int i = p_getWorldSkyColor_1_.provider.getDimensionId();

    switch (i)
    {
        case 0:
            Minecraft minecraft = Minecraft.getMinecraft();
            p_getWorldSkyColor_0_ = getSkyColor(p_getWorldSkyColor_0_, minecraft.theWorld, p_getWorldSkyColor_2_.posX, p_getWorldSkyColor_2_.posY + 1.0D, p_getWorldSkyColor_2_.posZ);
            break;

        case 1:
            p_getWorldSkyColor_0_ = getSkyColorEnd(p_getWorldSkyColor_0_);
    }

    return p_getWorldSkyColor_0_;
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
/**
 * Returns whether the EntityAIBase should begin execution.
 */
public boolean shouldExecute()
{
    if (!this.horseHost.isTame() && this.horseHost.riddenByEntity != null)
    {
        Vec3 vec3 = RandomPositionGenerator.findRandomTarget(this.horseHost, 5, 4);

        if (vec3 == null)
        {
            return false;
        }
        else
        {
            this.targetX = vec3.xCoord;
            this.targetY = vec3.yCoord;
            this.targetZ = vec3.zCoord;
            return true;
        }
    }
    else
    {
        return false;
    }
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
private static Entity getEntityHit(ProjectileType type, Vec3 source, Vec3 destination) {
    for (Object o : Minecraft.getMinecraft().theWorld.loadedEntityList) {
        if (o == Minecraft.getMinecraft().getRenderViewEntity())
            continue;
        if (o instanceof EntityLivingBase) {
            EntityLivingBase entity = (EntityLivingBase) o;

            double expander = (type == ProjectileType.ARROW) ? 0.2 : 0.125;
            AxisAlignedBB boundingBox = entity.getEntityBoundingBox().expand(expander, expander, expander);

            MovingObjectPosition raytraceResult = boundingBox.calculateIntercept(source, destination);
            if (raytraceResult != null) {
                return entity;
            }
        }
    }

    return null;
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
/**
 * Returns whether the EntityAIBase should begin execution.
 */
public boolean shouldExecute()
{
    if (this.theEntityCreature.getAITarget() == null && !this.theEntityCreature.isBurning())
    {
        return false;
    }
    else
    {
        Vec3 vec3 = RandomPositionGenerator.findRandomTarget(this.theEntityCreature, 5, 4);

        if (vec3 == null)
        {
            return false;
        }
        else
        {
            this.randPosX = vec3.xCoord;
            this.randPosY = vec3.yCoord;
            this.randPosZ = vec3.zCoord;
            return true;
        }
    }
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
/**
 * Renders broken item particles using the given ItemStack
 */
public void renderBrokenItemStack(ItemStack stack)
{
    this.playSound("random.break", 0.8F, 0.8F + this.worldObj.rand.nextFloat() * 0.4F);

    for (int i = 0; i < 5; ++i)
    {
        Vec3 vec3 = new Vec3(((double)this.rand.nextFloat() - 0.5D) * 0.1D, Math.random() * 0.1D + 0.1D, 0.0D);
        vec3 = vec3.rotatePitch(-this.rotationPitch * (float)Math.PI / 180.0F);
        vec3 = vec3.rotateYaw(-this.rotationYaw * (float)Math.PI / 180.0F);
        double d0 = (double)(-this.rand.nextFloat()) * 0.6D - 0.3D;
        Vec3 vec31 = new Vec3(((double)this.rand.nextFloat() - 0.5D) * 0.3D, d0, 0.6D);
        vec31 = vec31.rotatePitch(-this.rotationPitch * (float)Math.PI / 180.0F);
        vec31 = vec31.rotateYaw(-this.rotationYaw * (float)Math.PI / 180.0F);
        vec31 = vec31.addVector(this.posX, this.posY + (double)this.getEyeHeight(), this.posZ);
        this.worldObj.spawnParticle(EnumParticleTypes.ITEM_CRACK, vec31.xCoord, vec31.yCoord, vec31.zCoord, vec3.xCoord, vec3.yCoord + 0.05D, vec3.zCoord, new int[] {Item.getIdFromItem(stack.getItem())});
    }
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
public static Vec3 getFogColor(Vec3 p_getFogColor_0_, IBlockAccess p_getFogColor_1_, double p_getFogColor_2_, double p_getFogColor_4_, double p_getFogColor_6_)
{
    if (fogColors == null)
    {
        return p_getFogColor_0_;
    }
    else
    {
        int i = getSmoothColor(fogColors, p_getFogColor_1_, p_getFogColor_2_, p_getFogColor_4_, p_getFogColor_6_, 7, 1);
        int j = i >> 16 & 255;
        int k = i >> 8 & 255;
        int l = i & 255;
        float f = (float)j / 255.0F;
        float f1 = (float)k / 255.0F;
        float f2 = (float)l / 255.0F;
        float f3 = (float)p_getFogColor_0_.xCoord / 0.753F;
        float f4 = (float)p_getFogColor_0_.yCoord / 0.8471F;
        float f5 = (float)p_getFogColor_0_.zCoord;
        f = f * f3;
        f1 = f1 * f4;
        f2 = f2 * f5;
        return new Vec3((double)f, (double)f1, (double)f2);
    }
}
 

import net.minecraft.util.Vec3; //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_, Vec3 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.Vec3; //導入依賴的package包/類
private MovingObjectPosition getObjectMouseOver(DiscreteMovementCommand command)
{
    MovingObjectPosition mop = null;
    if (command.equals(DiscreteMovementCommand.USE))
        mop = Minecraft.getMinecraft().objectMouseOver;
    else if (command.equals(DiscreteMovementCommand.JUMPUSE))
    {
        long partialTicks = 0;  //Minecraft.timer.renderPartialTicks
        Entity viewer = Minecraft.getMinecraft().thePlayer;
        double blockReach = Minecraft.getMinecraft().playerController.getBlockReachDistance();
        Vec3 eyePos = viewer.getPositionEyes(partialTicks);
        Vec3 lookVec = viewer.getLook(partialTicks);
        int yOffset = 1;    // For the jump
        Vec3 searchVec = eyePos.addVector(lookVec.xCoord * blockReach, yOffset + lookVec.yCoord * blockReach, lookVec.zCoord * blockReach);
        mop = Minecraft.getMinecraft().theWorld.rayTraceBlocks(eyePos, searchVec, false, false, false);
    }
    return mop;
}
 

import net.minecraft.util.Vec3; //導入依賴的package包/類
public static Vec3 getWorldFogColor(Vec3 p_getWorldFogColor_0_, WorldClient p_getWorldFogColor_1_, Entity p_getWorldFogColor_2_, float p_getWorldFogColor_3_)
{
    int i = p_getWorldFogColor_1_.provider.getDimensionId();

    switch (i)
    {
        case -1:
            p_getWorldFogColor_0_ = getFogColorNether(p_getWorldFogColor_0_);
            break;

        case 0:
            Minecraft minecraft = Minecraft.getMinecraft();
            p_getWorldFogColor_0_ = getFogColor(p_getWorldFogColor_0_, minecraft.theWorld, p_getWorldFogColor_2_.posX, p_getWorldFogColor_2_.posY + 1.0D, p_getWorldFogColor_2_.posZ);
            break;

        case 1:
            p_getWorldFogColor_0_ = getFogColorEnd(p_getWorldFogColor_0_);
    }

    return p_getWorldFogColor_0_;
}