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Revert "Implements interface for changing the view distance."

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This commit is contained in:
EvilSeph
2011-08-15 14:27:02 -04:00
parent 12e377501e
commit 8ea590bbcc
7 changed files with 33 additions and 294 deletions
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122
src/main/java/net/minecraft/server/PlayerManager.java
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@@ -14,10 +14,15 @@ public class PlayerManager {
private final int[][] g = new int[][] { { 1, 0}, { 0, 1}, { -1, 0}, { 0, -1}};
public PlayerManager(MinecraftServer minecraftserver, int i, int j) {
// CraftBukkit start - no longer need to track view distance here, defers to the player.
this.server = minecraftserver;
this.e = i;
// CraftBukkit end
if (j > 15) {
throw new IllegalArgumentException("Too big view radius!");
} else if (j < 3) {
throw new IllegalArgumentException("Too small view radius!");
} else {
this.f = j;
this.server = minecraftserver;
this.e = i;
}
}
public WorldServer a() {
@@ -61,7 +66,7 @@ public class PlayerManager {
entityplayer.d = entityplayer.locX;
entityplayer.e = entityplayer.locZ;
int k = 0;
int l = entityplayer.getViewDistance(); // CraftBukkit - use per-player view distance rather than this.f;
int l = this.f;
int i1 = 0;
int j1 = 0;
@@ -96,11 +101,8 @@ public class PlayerManager {
int i = (int) entityplayer.d >> 4;
int j = (int) entityplayer.e >> 4;
// CraftBukkit start - use per-player view distance instead of this.f
int viewDistance = entityplayer.getViewDistance();
for (int k = i - viewDistance; k <= i + viewDistance; ++k) {
for (int l = j - viewDistance; l <= j + viewDistance; ++l) {
// CraftBukkit end
for (int k = i - this.f; k <= i + this.f; ++k) {
for (int l = j - this.f; l <= j + this.f; ++l) {
PlayerInstance playerinstance = this.a(k, l, false);
if (playerinstance != null) {
@@ -112,14 +114,12 @@ public class PlayerManager {
this.managedPlayers.remove(entityplayer);
}
// CraftBukkit start - changed signature to take a reference to a player. Allows for per-player view distance checks
private boolean a(int viewDistance, int i, int j, int k, int l) {
private boolean a(int i, int j, int k, int l) {
int i1 = i - k;
int j1 = j - l;
return i1 >= -viewDistance && i1 <= viewDistance ? j1 >= -viewDistance && j1 <= viewDistance : false; // CraftBukkit - use per-player view distance
return i1 >= -this.f && i1 <= this.f ? j1 >= -this.f && j1 <= this.f : false;
}
// CraftBukkit end
public void movePlayer(EntityPlayer entityplayer) {
int i = (int) entityplayer.locX >> 4;
@@ -135,16 +135,13 @@ public class PlayerManager {
int j1 = j - l;
if (i1 != 0 || j1 != 0) {
// CraftBukkit start - use per-player view distance instead of this.f
int viewDistance = entityplayer.getViewDistance();
for (int k1 = i - viewDistance; k1 <= i + viewDistance; ++k1) {
for (int l1 = j - viewDistance; l1 <= j + viewDistance; ++l1) {
if (!this.a(viewDistance, k1, l1, k, l)) { // CraftBukkit - use per-player view distance
for (int k1 = i - this.f; k1 <= i + this.f; ++k1) {
for (int l1 = j - this.f; l1 <= j + this.f; ++l1) {
if (!this.a(k1, l1, k, l)) {
this.a(k1, l1, true).a(entityplayer);
}
if (!this.a(viewDistance, k1 - i1, l1 - j1, i, j)) { // CraftBukkit - use per-player view distance
// CraftBukkit end
if (!this.a(k1 - i1, l1 - j1, i, j)) {
PlayerInstance playerinstance = this.a(k1 - i1, l1 - j1, false);
if (playerinstance != null) {
@@ -185,87 +182,4 @@ public class PlayerManager {
static List b(PlayerManager playermanager) {
return playermanager.c;
}
// CraftBukkit start
/**
* This method will update references of the EntityPlayer to ensure they are being sent all and only those chunks they can see.
* Note that no attempt is made in this method to track the distance viewable. As such, care should be taken to ensure the
* EntityPlayer could indeed see as far previously as you have specified.
*
* If the chunks which the EntityPlayer can see changes, chunks will be added or removed in a spiral fashion.
* @param entityPlayer the EntityPlayer to update
* @param oldViewDistance the previous distance they could see
* @param newViewDistance the new distance they can see
*/
public void updatePlayerViewDistance(EntityPlayer entityPlayer, int oldViewDistance, int newViewDistance) {
if (oldViewDistance == newViewDistance) {
return;
}
int chunkX = (int) entityPlayer.locX >> 4;
int chunkZ = (int) entityPlayer.locZ >> 4;
entityPlayer.d = entityPlayer.locX; // set the 'last known' position
entityPlayer.e = entityPlayer.locZ;
// Going to add/remove players from player-chunk maps in a spiral fashion
// This will send players new chunks they don't have, as well as stop sending chunks they shouldn't have
// We move in an anticlockwise fashion, and can start at any of the four corners
// 0 is [-1,-1]; 1 is [1,-1]; 2 is [1,1]; 3 is [-1,1];
int corner = 2; // TODO use the direction the player is facing to determine best start corner
int xStartOffset = this.g[(corner+3)%4][(corner+1)%2]; // calculate which offset to use based on corner we start in
int zStartOffset = this.g[(corner+2)%4][corner%2];
int deltaX;
int deltaZ;
int loop;
int loopStart;
if (newViewDistance < oldViewDistance) {
// Remove player from outer chunk loops in player-chunk map
loopStart = oldViewDistance;
for (loop = loopStart, deltaX = xStartOffset*loopStart, deltaZ = zStartOffset*loopStart;
loop > newViewDistance;
--loop, deltaX-=xStartOffset, deltaZ-=zStartOffset) {
for (int edge = 0; edge < 4; ++edge) {
int[] direction = this.g[corner++ % 4];
for (int i2 = 0; i2 < loop*2; ++i2) {
deltaX += direction[0];
deltaZ += direction[1];
this.removePlayerFromChunk(entityPlayer, chunkX + deltaX, chunkZ + deltaZ);
}
}
}
} else if (newViewDistance > oldViewDistance) {
// Add player to outer chunk loops in player-chunk map
loopStart = oldViewDistance + 1; // start adding outside the current outer loop
for (loop = loopStart, deltaX = xStartOffset*loopStart, deltaZ = zStartOffset*loopStart;
loop <= newViewDistance;
++loop, deltaX+=xStartOffset, deltaZ+=zStartOffset) {
for (int edge = 0; edge < 4; ++edge) {
int[] direction = this.g[corner++ % 4];
for (int i2 = 0; i2 < loop*2; ++i2) {
deltaX += direction[0];
deltaZ += direction[1];
this.addPlayerToChunk(entityPlayer, chunkX + deltaX, chunkZ + deltaZ);
}
}
}
}
}
private void removePlayerFromChunk(EntityPlayer entityPlayer, int chunkX, int chunkZ) {
PlayerInstance chunkPlayerMap = this.a(chunkX, chunkZ, false); // get the chunk-player map for this chunk, don't create it if it doesn't exist yet
if (chunkPlayerMap != null) {
chunkPlayerMap.b(entityPlayer); // if the chunk-player map exists, remove the player from it.
}
}
private void addPlayerToChunk(EntityPlayer entityPlayer, int chunkX, int chunkZ) {
PlayerInstance chunkPlayerMap = this.a(chunkX, chunkZ, true); // get the chunk-player map for this chunk, create it if it doesn't exist yet
chunkPlayerMap.a(entityPlayer); // add the player to the chunk-player map
}
// CraftBukkit end
}