/**
* Check if a player may climb upwards (isOnClimbable returned true, player does not move from/to
* ground).<br>
* Having checked the other stuff is prerequisite for calling this (!).
*
* @param jumpHeigth Height the player is allowed to have jumped.
* @return
*/
public boolean canClimbUp(double jumpHeigth) {
// TODO: distinguish vines.
if (BlockProperties.isAttachedClimbable(getTypeId())) {
// Check if vine is attached to something solid
if (BlockProperties.canClimbUp(blockCache, blockX, blockY, blockZ)) {
return true;
}
// Check the block at head height.
final int headY = Location.locToBlock(y + eyeHeight);
if (headY > blockY) {
for (int cy = blockY + 1; cy <= headY; cy++) {
if (BlockProperties.canClimbUp(blockCache, blockX, cy, blockZ)) {
return true;
}
}
}
// Finally check possible jump height.
// TODO: This too is inaccurate.
if (isOnGround(jumpHeigth)) {
// Here ladders are ok.
return true;
}
return false;
}
return true;
}
/**
* Simple block-on-ground check for given margin (no entities). Meant for checking bigger margin
* than the normal yOnGround.
*
* @param yOnGround Margin below the player.
* @param xzMargin
* @param yMargin Extra margin added below and above.
* @param ignoreFlags Flags to not regard as ground.
* @return
*/
public boolean isOnGround(
final double yOnGround, final double xzMargin, final double yMargin, final long ignoreFlags) {
if (ignoreFlags == 0) {
if (xzMargin >= 0 && onGroundMinY <= yOnGround) return true;
if (xzMargin <= 0 && yMargin == 0) {
if (notOnGroundMaxY >= yOnGround) return false;
}
}
// NCPAPIProvider.getNoCheatPlusAPI().getLogManager().debug(Streams.TRACE_FILE, "*** Fetch
// on-ground: yOnGround=" + yOnGround + " xzM=" + xzMargin + " yM=" + yMargin + " ign=" +
// ignoreFlags);
final boolean onGround =
BlockProperties.isOnGround(
blockCache,
minX - xzMargin,
minY - yOnGround - yMargin,
minZ - xzMargin,
maxX + xzMargin,
minY + yMargin,
maxZ + xzMargin,
ignoreFlags);
if (ignoreFlags == 0) {
if (onGround) {
if (xzMargin <= 0 && yMargin == 0) {
onGroundMinY = Math.min(onGroundMinY, yOnGround);
}
} else {
if (xzMargin >= 0) {
notOnGroundMaxY = Math.max(notOnGroundMaxY, yOnGround);
}
}
}
return onGround;
}
/**
* Check if the location is on ground and if it is hitting the bounding box of a block with the
* given id. Currently this is coarse (not checking if it is really possible to stand on such a
* block).
*
* @param id
* @return
*/
public boolean standsOnBlock(final int id) {
if (!isOnGround()) {
return false;
}
return BlockProperties.collidesBlock(
this.blockCache, minX, minY - yOnGround, minZ, maxX, minY, maxZ, id);
}
/**
* Test if the foot location is passable (not the bounding box). <br>
* The result is cached.
*
* @return
*/
public boolean isPassable() {
if (passable == null) {
passable = BlockProperties.isPassable(blockCache, x, y, z, getTypeId());
// passable = BlockProperties.isPassableExact(blockCache, x, y, z, getTypeId());
}
return passable;
}
/**
* Test if something solid/ground-like collides within the given margin above the height of the
* player.
*
* @param marginAboveHeight
* @return
*/
public boolean isHeadObstructed(double marginAboveHeight) {
return BlockProperties.collides(
blockCache,
x - width,
y + eyeHeight,
z - width,
x + width,
y + eyeHeight + marginAboveHeight,
z + width,
BlockProperties.F_GROUND | BlockProperties.F_SOLID);
}
/**
* Check if solid blocks hit the box.
*
* @param xzMargin
* @param yMargin
* @return
*/
public boolean isNextToGround(final double xzMargin, final double yMargin) {
// TODO: Adjust to check block flags ?
return BlockProperties.collides(
blockCache,
minX - xzMargin,
minY - yMargin,
minZ - xzMargin,
maxX + xzMargin,
maxY + yMargin,
maxZ + xzMargin,
BlockProperties.F_GROUND);
}
/**
* Checks if the player is on a ladder or vine.
*
* @return If so.
*/
public boolean isOnClimbable() {
if (onClimbable == null) {
// Climbable blocks.
if (blockFlags != null && (blockFlags.longValue() & BlockProperties.F_CLIMBABLE) == 0) {
onClimbable = false;
return false;
}
onClimbable = (BlockProperties.getBlockFlags(getTypeId()) & BlockProperties.F_CLIMBABLE) != 0;
// TODO: maybe use specialized bounding box.
// final double d = 0.1d;
// onClimbable = BlockProperties.collides(getBlockAccess(), minX - d, minY - d, minZ
// - d, maxX + d, minY + 1.0, maxZ + d, BlockProperties.F_CLIMBABLE);
}
return onClimbable;
}
/**
* Checks if the player is on ground.
*
* @return true, if the player is on ground
*/
public boolean isOnGround() {
if (onGround == null) {
final double d0 = 0.01D;
onGround =
BlockProperties.isOnGround(
getBlockAccess(),
minX - d0,
minY - yOnGround,
minZ - d0,
maxX + d0,
minY + 0.25,
maxZ + d0);
if (!onGround) {
// TODO: Probably check other ids too before doing this ?
final double d1 = 0.25D;
final AxisAlignedBB box =
useBox.b(
minX - d1,
minY - getyOnGround() - d1,
minZ - d1,
maxX + d1,
minY + 0.25 + d1,
maxZ + d1);
@SuppressWarnings("rawtypes")
final List list = worldServer.getEntities(entityPlayer, box);
@SuppressWarnings("rawtypes")
Iterator iterator = list.iterator();
while (iterator.hasNext()) {
final Entity entity = (Entity) iterator.next();
final EntityType type = entity.getBukkitEntity().getType();
if (type != EntityType.BOAT && type != EntityType.MINECART) continue;
final AxisAlignedBB otherBox = entity.boundingBox;
if (box.a > otherBox.d
|| box.d < otherBox.a
|| box.b > otherBox.e
|| box.e < otherBox.b
|| box.c > otherBox.f
|| box.f < otherBox.c) continue;
else {
onGround = true;
break;
}
}
}
}
return onGround;
}
/**
* Check the maximally used bounds for the block checking, to have flags ready for faster denial.
*
* @param maxYonGround
*/
public void collectBlockFlags(double maxYonGround) {
maxYonGround = Math.max(yOnGround, maxYonGround);
// TODO: Clearly refine this for 1.5 high blocks.
// TODO: Check which checks need blocks below.
final double yExtra = 0.6; // y - blockY - maxYonGround > 0.5 ? 0.5 : 1.0;
// TODO: xz margin still needed ?
final double xzM = 0; // 0.001;
blockFlags =
BlockProperties.collectFlagsSimple(
blockCache,
minX - xzM,
minY - yExtra - maxYonGround,
minZ - xzM,
maxX + xzM,
Math.max(maxY, minY + 1.5),
maxZ + xzM);
}
/**
* Checks if the player is in web.
*
* @return true, if the player is in web
*/
public boolean isInWeb() {
if (inWeb == null) {
// TODO: inset still needed ?
final double inset = 0.001d;
inWeb =
BlockProperties.collidesId(
blockCache,
minX + inset,
minY + inset,
minZ + inset,
maxX - inset,
maxY - inset,
maxZ - inset,
Material.WEB);
}
return inWeb;
}
/**
* Checks if the player is in water.
*
* @return true, if the player is in water
*/
public boolean isInWater() {
if (inWater == null) {
final double dX = -0.001D;
final double dY = -0.40000000596046448D - 0.001D;
final double dZ = -0.001D;
inWater =
BlockProperties.collides(
getBlockAccess(),
minX - dX,
minY - dY,
minZ - dZ,
maxX + dX,
maxY + dY,
maxZ + dZ,
BlockProperties.F_WATER);
}
return inWater;
}
/**
* Checks if the player is in lava.
*
* @return true, if the player is in lava
*/
public boolean isInLava() {
if (inLava == null) {
if (blockFlags != null && (blockFlags.longValue() & BlockProperties.F_LAVA) == 0) {
inLava = false;
return false;
}
// TODO: ...
// final double dX = -0.10000000149011612D;
// final double dY = -0.40000000596046448D;
// final double dZ = dX;
// inLava = BlockProperties.collides(blockCache, minX - dX, minY - dY, minZ - dZ,
// maxX + dX, maxY + dY, maxZ + dZ, BlockProperties.F_LAVA);
inLava =
BlockProperties.collides(
blockCache, minX, minY, minZ, maxX, maxY, maxZ, BlockProperties.F_LAVA);
}
return inLava;
}
/**
* Checks if the player is in water.
*
* @return true, if the player is in water
*/
public boolean isInWater() {
if (inWater == null) {
if (blockFlags != null && (blockFlags.longValue() & BlockProperties.F_WATER) == 0) {
inWater = false;
return false;
}
// TODO: ...
// final double dX = -0.001D;
// final double dY = -0.40000000596046448D - 0.001D;
// final double dZ = dX;
// inWater = BlockProperties.collides(blockCache, minX - dX, minY - dY, minZ - dZ,
// maxX + dX, maxY + dY, maxZ + dZ, BlockProperties.F_WATER);
inWater =
BlockProperties.collides(
blockCache, minX, minY, minZ, maxX, maxY, maxZ, BlockProperties.F_WATER);
}
return inWater;
}
/**
* Checks if the player is in lava.
*
* @return true, if the player is in lava
*/
public boolean isInLava() {
if (inLava == null) {
final double dX = -0.10000000149011612D;
final double dY = -0.40000000596046448D;
final double dZ = dX;
inLava =
BlockProperties.collides(
getBlockAccess(),
minX - dX,
minY - dY,
minZ - dZ,
maxX + dX,
maxY + dY,
maxZ + dZ,
BlockProperties.F_LAVA);
}
return inLava;
}
/**
* Checks if the player is above stairs.
*
* @return true, if the player above on stairs
*/
public boolean isAboveStairs() {
if (aboveStairs == null) {
// aboveStairs =
// BlockProperties.isStairs(getTypeIdBelow().intValue());
// TODO: maybe distinguish upside down stairs and normal stairs !
final double diff = getWidth() + 0.001;
aboveStairs =
BlockProperties.collides(
getBlockAccess(),
x - diff,
y + 0.25,
z - diff,
x + diff,
y - 1.0,
z + diff,
BlockProperties.F_STAIRS);
}
return aboveStairs;
}
/**
* Checks if the player is on ice.
*
* @return true, if the player is on ice
*/
public boolean isOnIce() {
if (onIce == null) {
// TODO: Use a box here too ?
// TODO: check if player is really sneaking (refactor from survivalfly to static access in
// Combined ?)!
if (blockFlags != null && (blockFlags.longValue() & BlockProperties.F_ICE) == 0) {
// TODO: check onGroundMinY !?
onIce = false;
} else {
final int id;
if (player.isSneaking() || player.isBlocking()) {
id = getTypeId(blockX, Location.locToBlock(minY - 0.1D), blockZ);
} else {
id = getTypeIdBelow().intValue();
}
onIce = BlockProperties.isIce(id);
}
}
return onIce;
}
/**
* Checks if the player is above stairs.
*
* @return true, if the player above on stairs
*/
public boolean isAboveStairs() {
if (aboveStairs == null) {
if (blockFlags != null && (blockFlags.longValue() & BlockProperties.F_STAIRS) == 0) {
aboveStairs = false;
return false;
}
// TODO: Distinguish based on actual height off .0 ?
// TODO: diff still needed ?
final double diff = 0; // 0.001;
aboveStairs =
BlockProperties.collides(
blockCache,
minX - diff,
minY - 1.0,
minZ - diff,
maxX + diff,
minY + 0.25,
maxZ + diff,
BlockProperties.F_STAIRS);
}
return aboveStairs;
}
/**
* Convenience method: delegate to BlockProperties.isDoppwnStream .
*
* @param xDistance
* @param zDistance
* @return
*/
public boolean isDownStream(final double xDistance, final double zDistance) {
return BlockProperties.isDownStream(
blockCache, blockX, blockY, blockZ, getData(), xDistance, zDistance);
}
/**
* Simple at the spot passability test, no bounding boxes.
*
* @return
*/
public boolean isPassable() {
if (passable == null)
passable = BlockProperties.isPassable(getBlockAccess(), x, y, z, getTypeId());
return passable;
}
/**
* Checks if the player is on ground, including entities such as Minecart, Boat.
*
* @return true, if the player is on ground
*/
public boolean isOnGround() {
if (onGround != null) {
return onGround;
}
// Check cached values and simplifications.
if (notOnGroundMaxY >= yOnGround) onGround = false;
else if (onGroundMinY <= yOnGround) onGround = true;
else {
// Shortcut check (currently needed for being stuck + sf).
if (blockFlags == null || (blockFlags.longValue() & BlockProperties.F_GROUND) != 0) {
// TODO: Consider dropping this shortcut.
final int bY = Location.locToBlock(y - yOnGround);
final int id =
bY == blockY
? getTypeId()
: (bY == blockY - 1 ? getTypeIdBelow() : blockCache.getTypeId(blockX, bY, blockZ));
final long flags = BlockProperties.getBlockFlags(id);
// TODO: Might remove check for variable ?
if ((flags & BlockProperties.F_GROUND) != 0 && (flags & BlockProperties.F_VARIABLE) == 0) {
final double[] bounds = blockCache.getBounds(blockX, bY, blockZ);
// Check collision if not inside of the block. [Might be a problem for cauldron or similar
// + something solid above.]
// TODO: Might need more refinement.
if (bounds != null
&& y - bY >= bounds[4]
&& BlockProperties.collidesBlock(
blockCache,
x,
minY - yOnGround,
z,
x,
minY,
z,
blockX,
bY,
blockZ,
id,
bounds,
flags)) {
// TODO: BlockHeight is needed for fences, use right away (above)?
if (!BlockProperties.isPassableWorkaround(
blockCache,
blockX,
bY,
blockZ,
minX - blockX,
minY - yOnGround - bY,
minZ - blockZ,
id,
maxX - minX,
yOnGround,
maxZ - minZ,
1.0)
|| (flags & BlockProperties.F_GROUND_HEIGHT) != 0
&& BlockProperties.getGroundMinHeight(
blockCache, blockX, bY, blockZ, id, bounds, flags)
<= y - bY) {
//
// NCPAPIProvider.getNoCheatPlusAPI().getLogManager().debug(Streams.TRACE_FILE, "***
// onground SHORTCUT");
onGround = true;
}
}
}
if (onGround == null) {
//
// NCPAPIProvider.getNoCheatPlusAPI().getLogManager().debug(Streams.TRACE_FILE, "*** fetch
// onground std");
// Full on-ground check (blocks).
// Note: Might check for half-block height too (getTypeId), but that is much more seldom.
onGround =
BlockProperties.isOnGround(
blockCache, minX, minY - yOnGround, minZ, maxX, minY, maxZ, 0L);
}
} else onGround = false;
}
if (onGround) onGroundMinY = Math.min(onGroundMinY, yOnGround);
else {
// NCPAPIProvider.getNoCheatPlusAPI().getLogManager().debug(Streams.TRACE_FILE, "***
// onground check entities");
// TODO: further confine this ?
notOnGroundMaxY = Math.max(notOnGroundMaxY, yOnGround);
final double d1 = 0.25D;
onGround =
blockCache.standsOnEntity(
player,
minX - d1,
minY - yOnGround - d1,
minZ - d1,
maxX + d1,
minY + 0.25 + d1,
maxZ + d1);
}
return onGround;
}
/**
* Checks if the player is above a ladder or vine.<br>
* Does not save back value to field.
*
* @return If so.
*/
public boolean isAboveLadder() {
if (blockFlags != null && (blockFlags.longValue() & BlockProperties.F_CLIMBABLE) == 0)
return false;
// TODO: bounding box ?
return (BlockProperties.getBlockFlags(getTypeIdBelow()) & BlockProperties.F_CLIMBABLE) != 0;
}