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#include "stdafx.h"
#include "net.minecraft.world.level.h"
#include "BirchFeature.h"
#include "net.minecraft.world.level.tile.h"
BirchFeature::BirchFeature(bool doUpdate) : Feature(doUpdate)
{
}
bool BirchFeature::place(Level *level, Random *random, int x, int y, int z)
{
int treeHeight = random->nextInt(3) + 5;
bool free = true;
if (y < 1 || y + treeHeight + 1 > Level::maxBuildHeight) return false;
for (int yy = y; yy <= y + 1 + treeHeight; yy++)
{
int r = 1;
if (yy == y) r = 0;
if (yy >= y + 1 + treeHeight - 2) r = 2;
for (int xx = x - r; xx <= x + r && free; xx++)
{
for (int zz = z - r; zz <= z + r && free; zz++)
{
if (yy >= 0 && yy < Level::maxBuildHeight)
{
int tt = level->getTile(xx, yy, zz);
if (tt != 0 && tt != Tile::leaves_Id) free = false;
}
else
{
free = false;
}
}
}
}
if (!free) return false;
int belowTile = level->getTile(x, y - 1, z);
if ((belowTile != Tile::grass_Id && belowTile != Tile::dirt_Id) || y >= Level::maxBuildHeight - treeHeight - 1) return false;
// 4J Stu Added to stop tree features generating areas previously place by game rule generation
if(app.getLevelGenerationOptions() != nullptr)
{
LevelGenerationOptions *levelGenOptions = app.getLevelGenerationOptions();
int radius = 3;
bool intersects = levelGenOptions->checkIntersects(x - radius, y - 1, z - radius, x + radius, y + treeHeight, z + radius);
if(intersects)
{
//app.DebugPrintf("Skipping reeds feature generation as it overlaps a game rule structure\n");
return false;
}
}
placeBlock(level, x, y - 1, z, Tile::dirt_Id);
for (int yy = y - 3 + treeHeight; yy <= y + treeHeight; yy++)
{
int yo = yy - (y + treeHeight);
int offs = 1 - yo / 2;
for (int xx = x - offs; xx <= x + offs; xx++)
{
int xo = xx - (x);
for (int zz = z - offs; zz <= z + offs; zz++)
{
int zo = zz - (z);
if (abs(xo) == offs && abs(zo) == offs && (random->nextInt(2) == 0 || yo == 0)) continue;
int t = level->getTile(xx, yy, zz);
if (t == 0 || t == Tile::leaves_Id) placeBlock(level, xx, yy, zz, Tile::leaves_Id, LeafTile::BIRCH_LEAF);
}
}
}
for (int hh = 0; hh < treeHeight; hh++)
{
int t = level->getTile(x, y + hh, z);
if (t == 0 || t == Tile::leaves_Id) placeBlock(level, x, y + hh, z, Tile::treeTrunk_Id, TreeTile::BIRCH_TRUNK);
}
return true;
}
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