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/* Battle Tanks Game
* Copyright (C) 2006-2009 Battle Tanks team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* Additional rights can be granted beyond the GNU General Public License
* on the terms provided in the Exception. If you modify this file,
* you may extend this exception to your version of the file,
* but you are not obligated to do so. If you do not wish to provide this
* exception without modification, you must delete this exception statement
* from your version and license this file solely under the GPL without exception.
*/
#include "tilebox_brush.h"
#include "tmx/map.h"
#include "tmx/generator.h"
#include "tmx/generator_object.h"
#include "command.h"
#include <assert.h>
TileBoxBrush::TileBoxBrush(const std::string &tileset, const std::string &name) {
size.x = size.y = 1;
tilebox = dynamic_cast<const generator::TileBox*>(Map->getGenerator()->getObject(tileset, name + "|"));
if (tilebox == NULL)
throw_ex(("generator object %s:%s is not a box", tileset.c_str(), name.c_str()));
if (tilebox->split_w[1] == 0 || tilebox->split_h[1] == 0)
throw_ex(("cannot handle primary boxes w/o central tiles. "));
gid = Map->getTilesets().exists(tileset);
if (gid == 0)
throw_ex(("map claims that it has not tileset '%s'. this is bug.", tileset.c_str()));
TRY {
tilebox_out = dynamic_cast<const generator::TileBox*>(Map->getGenerator()->getObject(tileset, "|" + name));
if (tilebox_out == NULL)
throw_ex(("generator object %s:%s is not a box", tileset.c_str(), name.c_str()));
} CATCH("ctor", tilebox_out = NULL);
}
const bool TileBoxBrush::check(const generator::TileBox *tilebox, const int tid, const bool base) {
if (tid == 0)
return !base;
const int x1 = tilebox->split_w[0], y1 = tilebox->split_h[0];
const int x2 = x1 + tilebox->split_w[1], y2 = y1 + tilebox->split_h[1];
const Matrix<int> &tiles = tilebox->tiles;
for(int y = 0; y < tiles.get_height(); ++y)
for(int x = 0; x < tiles.get_width(); ++x) {
if (x >= x1 && x < x2 && y >= y1 && y < y2) {
if (!base)
continue;
} else {
if (base)
continue;
}
if (tid == tiles.get(y, x))
return true;
}
return false;
}
const bool TileBoxBrush::check(const int tid, const bool base) const {
if (tid == 0)
return !base;
return check(tilebox, tid, base) || (tilebox_out != NULL? check(tilebox_out, tid, base): false);
}
void TileBoxBrush::exec(Command& command, const int x, const int y) const {
const int w = tilebox->split_w[1], h = tilebox->split_h[1];
int tx = tilebox->split_w[0] + (x % w), ty = tilebox->split_h[0] + (y % h);
Matrix<int> around;
around.set_size(3, 3, 0);
for(int dy = -1; dy <= 1; ++dy)
for(int dx = - 1; dx <= 1 ; ++dx) {
int tid = command.getTile(x + dx, y + dy);
if (tid)
around.set(dy + 1, dx + 1, tid - gid + 1);
}
around.set(1, 1, tilebox->tiles.get(ty, tx));
LOG_DEBUG(("surround matrix: %s", around.dump().c_str()));
for(int dy = 0; dy < around.get_height(); ++dy) {
for(int dx = 0; dx < around.get_width(); ++dx) {
if (dx == 1 && dy == 1)
continue;
morph(around, dy, dx, y + dy - 1, x + dx - 1);
}
}
for(int dy = -1; dy <= 1; ++dy)
for(int dx = - 1; dx <= 1 ; ++dx) {
int tid = around.get(dy + 1, dx + 1);
if (tid != 0) {
command.setTile(x + dx, y + dy, tid + gid - 1);
}
}
command.exec();
}
#define BITS(m, b) (((m) & (b)) == (b))
void TileBoxBrush::morph(Matrix<int> &ground, const int y, const int x, const int map_y, const int map_x) const {
int base_tid = ground.get(y, x);
if (!check(tilebox, base_tid, false)) //allow tile already in tileset
return;
LOG_DEBUG(("morph %d:%d", y, x));
unsigned tile_bits = 0;
for(int dy = -1; dy <= 1; ++dy)
for(int dx = - 1; dx <= 1 ; ++dx) {
int yp = y + dy, xp = x + dx;
if (xp < 0 || xp >= ground.get_width() || yp < 0 || yp >= ground.get_height())
continue;
//LOG_DEBUG(("tid = %d", ground.get(yp, xp)));
bool morphable = check(ground.get(yp, xp), false);
if (!morphable) {
tile_bits |= 1 << ((dy + 1) * 3 + dx + 1);
}
}
LOG_DEBUG(("mask = %08x", tile_bits));
int tid = 0;
if (BITS(tile_bits, 0x82) || BITS(tile_bits, 0x28)) {
tid = tilebox->tiles.get(tilebox->split_h[0] + (map_y % tilebox->split_h[1]), tilebox->split_w[0] + (map_x % tilebox->split_h[1]));
//outer box:
} else if (tilebox_out != NULL && BITS(tile_bits, 0x0a)) {
tid = tilebox_out->tiles.get(
map_y % tilebox_out->split_h[0],
map_x % tilebox_out->split_w[0]);
} else if (tilebox_out != NULL && BITS(tile_bits, 0x22)) {
tid = tilebox_out->tiles.get(
map_y % tilebox_out->split_h[0],
tilebox_out->split_w[0] + tilebox_out->split_w[1] + (map_x % tilebox_out->split_w[2]));
} else if (tilebox_out != NULL && BITS(tile_bits, 0xa0)) {
tid = tilebox_out->tiles.get(
tilebox_out->split_h[0] + tilebox_out->split_h[1] + (map_y % tilebox_out->split_h[0]),
tilebox_out->split_w[0] + tilebox_out->split_w[1] + (map_x % tilebox_out->split_w[2]));
} else if (tilebox_out != NULL && BITS(tile_bits, 0x88)) {
tid = tilebox_out->tiles.get(
tilebox_out->split_h[0] + tilebox_out->split_h[1] + (map_y % tilebox_out->split_h[0]),
map_x % tilebox_out->split_w[0]);
//single tiles
} else if (BITS(tile_bits, 0x02)) {
tid = tilebox->tiles.get(
tilebox->split_h[0] + tilebox->split_h[1] + (map_y % tilebox->split_h[2]),
tilebox->split_w[0] + (map_x % tilebox->split_w[1]));
} else if (BITS(tile_bits, 0x20)) {
tid = tilebox->tiles.get(
tilebox->split_h[0] + (map_y % tilebox->split_h[1]),
map_x % tilebox->split_w[0]);
} else if (BITS(tile_bits, 0x80)) {
tid = tilebox->tiles.get(
map_y % tilebox->split_h[0],
tilebox->split_w[0] + (map_x % tilebox->split_w[1]));
} else if (BITS(tile_bits, 0x08)) {
tid = tilebox->tiles.get(
tilebox->split_h[0] + (map_y % tilebox->split_h[1]),
tilebox->split_w[0] + tilebox->split_w[1] + (map_x % tilebox->split_w[2]));
} else if (BITS(tile_bits, 0x01)) {
tid = tilebox->tiles.get(
tilebox->split_h[0] + tilebox->split_h[1] + (map_y % tilebox->split_h[2]),
tilebox->split_w[0] + tilebox->split_w[1] + (map_x % tilebox->split_w[2]));
} else if (BITS(tile_bits, 0x04)) {
tid = tilebox->tiles.get(
tilebox->split_h[0] + tilebox->split_h[1] + (map_y % tilebox->split_h[2]),
map_x % tilebox->split_w[0]);
} else if (BITS(tile_bits, 0x40)) {
tid = tilebox->tiles.get(
map_y % tilebox->split_h[0],
tilebox->split_w[0] + tilebox->split_w[1] + (map_x % tilebox->split_w[2]));
} else if (BITS(tile_bits, 0x100)) {
tid = tilebox->tiles.get(map_y % tilebox->split_h[0], map_x % tilebox->split_w[0]);
}
//patch tile
if (tid)
ground.set(y, x, tid);
}
void TileBoxBrush::render(sdlx::Surface &surface, const v2<int>& window_pos, const v2<int>& window_pos_aligned) {
int w = tilebox->split_w[1], h = tilebox->split_h[1];
int tx = tilebox->split_w[0] + (window_pos_aligned.x % w), ty = tilebox->split_h[0] + (window_pos_aligned.y % h);
int tid = gid + tilebox->tiles.get(ty, tx);
const IMap::TileDescriptor &td = Map->getTile(tid);
assert(td.surface != NULL);
surface.blit(*td.surface, window_pos_aligned.x, window_pos_aligned.y);
}
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