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better safe spot finder

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This commit is contained in:
Huynh Tien 2021-12-16 08:58:41 +07:00
parent 2e6ef59040
commit 6f01310f92
1 changed files with 39 additions and 8 deletions
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45
src/main/java/world/bentobox/bentobox/util/teleport/SafeSpotTeleport.java
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@ -230,17 +230,48 @@ public class SafeSpotTeleport {
* @return true if a safe spot was found
*/
private boolean scanChunk(ChunkSnapshot chunk) {
// Run through the chunk
int startY = location.getBlockY();
int minY = location.getWorld().getMinHeight() + 1;
int maxY = maxHeight;
// Check the safe spot at the current height
for (int x = 0; x < 16; x++) {
for (int z = 0; z < 16; z++) {
// Work down from the entry point up
for (int y = Math.min(chunk.getHighestBlockYAt(x, z), maxHeight); y >= 0; y--) {
if (checkBlock(chunk, x,y,z)) {
if (minY >= startY && startY <= maxY && checkBlock(chunk, x, startY ,z)) {
return true;
}
} // end y
} //end z
} // end x
}
}
// Expand the height up and down until a safe spot is found
int upperY = startY + 1;
int lowerY = startY - 1;
boolean checkUpper = upperY <= maxY;
boolean checkLower = lowerY >= minY;
while (checkUpper || checkLower) {
for (int x = 0; x < 16; x++) {
for (int z = 0; z < 16; z++) {
if (checkUpper && upperY <= maxY && checkBlock(chunk, x, upperY, z)) {
return true;
}
if (checkLower && lowerY >= minY && checkBlock(chunk, x, lowerY, z)) {
return true;
}
}
}
if (upperY > maxY) {
checkUpper = false;
} else {
upperY++;
}
if (lowerY < minY) {
checkLower = false;
} else {
lowerY--;
}
}
// We can't find a safe spot
return false;
}