Plex-FAWE/contrib/editscripts/forestgen.js
2010-10-02 17:15:18 -07:00

98 lines
3.0 KiB
JavaScript

// $Id$
/*
* Rudimentary ugly pine tree forest generator
* Copyright (c) 2010 sk89q <http://www.sk89q.com>
* Licensed under the terms of GNU General Public License v3
*/
/*
Usage:
/editscript forestgen
/editscript forestgen 20
The first and only argument is the size of the square forest to
create as the distance away from your current position. Default 30 if
unspecified.
*/
var size = args.length > 0 ? Math.max(2, parseInt(args[0])) : 30;
var affected = 0;
function chanceBlock(x, y, z, t, c) {
if (Math.random() <= c) {
minecraft.setBlock(x, y, z, t);
}
}
function makeTree(x, y, z) {
var trunkHeight = Math.floor(Math.random() * 2) + 3;
var height = Math.floor(Math.random() * 5) + 8;
// Create trunk
for (i = 0; i < trunkHeight; i++) {
minecraft.setBlock(x, y + i, z, 17);
}
// Move up
y = y + trunkHeight;
var pos2 = [-2, 2];
// Create tree + leaves
for (i = 0; i < height; i++) {
minecraft.setBlock(x, y + i, z, 17);
// Less leaves at these levels
var chance = (i == 0 || i == height - 1) ? 0.6 : 1
// Inner leaves
chanceBlock(x - 1, y + i, z, 18, chance);
chanceBlock(x + 1, y + i, z, 18, chance);
chanceBlock(x, y + i, z - 1, 18, chance);
chanceBlock(x, y + i, z + 1, 18, chance);
chanceBlock(x + 1, y + i, z + 1, 18, chance);
chanceBlock(x - 1, y + i, z + 1, 18, chance);
chanceBlock(x + 1, y + i, z - 1, 18, chance);
chanceBlock(x - 1, y + i, z - 1, 18, chance);
if (!(i == 0 || i == height - 1)) {
for (var j = -2; j <= 2; j++) {
chanceBlock(x - 2, y + i, z + j, 18, 0.6);
}
for (var j = -2; j <= 2; j++) {
chanceBlock(x + 2, y + i, z + j, 18, 0.6);
}
for (var j = -2; j <= 2; j++) {
chanceBlock(x + j, y + i, z - 2, 18, 0.6);
}
for (var j = -2; j <= 2; j++) {
chanceBlock(x + j, y + i, z + 2, 18, 0.6);
}
}
}
}
for (var x = player.blockX - size; x <= player.blockX + size; x++) {
for (var z = player.blockZ - size; z <= player.blockZ + size; z++) {
// Don't want to be in the ground
if (minecraft.getBlock(x, player.blockY, z) != 0) { continue; }
// The gods don't want a tree here
if (Math.random() < 0.95) { continue; }
for (var y = player.blockY; y >= player.blockY - 10; y--) {
// Check if we hit the ground
var t = minecraft.getBlock(x, y, z);
if (t == 2 || t == 3) {
makeTree(x, y + 1, z);
affected++;
break;
} else if (t != 0) { // Trees won't grow on this!
break;
}
}
}
}
context.print(affected + " created tree(s)");