diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/station.cpp | 66 | ||||
| -rw-r--r-- | src/tilearea.cpp | 97 | ||||
| -rw-r--r-- | src/tilearea_type.h | 21 |
3 files changed, 101 insertions, 83 deletions
diff --git a/src/station.cpp b/src/station.cpp index e6b984d68..fef63b305 100644 --- a/src/station.cpp +++ b/src/station.cpp @@ -498,72 +498,6 @@ StationRect& StationRect::operator = (Rect src) return *this; } -TileArea::TileArea(TileIndex start, TileIndex end) -{ - uint sx = TileX(start); - uint sy = TileY(start); - uint ex = TileX(end); - uint ey = TileY(end); - - if (sx > ex) Swap(sx, ex); - if (sy > ey) Swap(sy, ey); - - this->tile = TileXY(sx, sy); - this->w = ex - sx + 1; - this->h = ey - sy + 1; -} - -void TileArea::Add(TileIndex to_add) -{ - if (this->tile == INVALID_TILE) { - this->tile = to_add; - this->w = 1; - this->h = 1; - return; - } - - uint sx = TileX(this->tile); - uint sy = TileY(this->tile); - uint ex = sx + this->w - 1; - uint ey = sy + this->h - 1; - - uint ax = TileX(to_add); - uint ay = TileY(to_add); - - sx = min(ax, sx); - sy = min(ay, sy); - ex = max(ax, ex); - ey = max(ay, ey); - - this->tile = TileXY(sx, sy); - this->w = ex - sx + 1; - this->h = ey - sy + 1; -} - -bool TileArea::Intersects(const TileArea &ta) const -{ - if (ta.w == 0 || this->w == 0) return false; - - assert(ta.w != 0 && ta.h != 0 && this->w != 0 && this->h != 0); - - uint left1 = TileX(this->tile); - uint top1 = TileY(this->tile); - uint right1 = left1 + this->w - 1; - uint bottom1 = top1 + this->h - 1; - - uint left2 = TileX(ta.tile); - uint top2 = TileY(ta.tile); - uint right2 = left2 + ta.w - 1; - uint bottom2 = top2 + ta.h - 1; - - return !( - left2 > right1 || - right2 < left1 || - top2 > bottom1 || - bottom2 < top1 - ); -} - void InitializeStations() { diff --git a/src/tilearea.cpp b/src/tilearea.cpp new file mode 100644 index 000000000..81efe96be --- /dev/null +++ b/src/tilearea.cpp @@ -0,0 +1,97 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * OpenTTD 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, version 2. + * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>. + */ + +/** @file tilearea.cpp Handling of tile areas. */ + +#include "stdafx.h" + +#include "tile_map.h" +#include "core/math_func.hpp" +#include "tilearea_type.h" + +/** + * Construct this tile area based on two points. + * @param start the start of the area + * @param end the end of the area + */ +TileArea::TileArea(TileIndex start, TileIndex end) +{ + uint sx = TileX(start); + uint sy = TileY(start); + uint ex = TileX(end); + uint ey = TileY(end); + + if (sx > ex) Swap(sx, ex); + if (sy > ey) Swap(sy, ey); + + this->tile = TileXY(sx, sy); + this->w = ex - sx + 1; + this->h = ey - sy + 1; +} + +/** + * Add a single tile to a tile area; enlarge if needed. + * @param to_add The tile to add + */ +void TileArea::Add(TileIndex to_add) +{ + if (this->tile == INVALID_TILE) { + this->tile = to_add; + this->w = 1; + this->h = 1; + return; + } + + uint sx = TileX(this->tile); + uint sy = TileY(this->tile); + uint ex = sx + this->w - 1; + uint ey = sy + this->h - 1; + + uint ax = TileX(to_add); + uint ay = TileY(to_add); + + sx = min(ax, sx); + sy = min(ay, sy); + ex = max(ax, ex); + ey = max(ay, ey); + + this->tile = TileXY(sx, sy); + this->w = ex - sx + 1; + this->h = ey - sy + 1; +} + +/** + * Does this tile area intersect with another? + * @param ta the other tile area to check against. + * @return true if they intersect. + */ +bool TileArea::Intersects(const TileArea &ta) const +{ + if (ta.w == 0 || this->w == 0) return false; + + assert(ta.w != 0 && ta.h != 0 && this->w != 0 && this->h != 0); + + uint left1 = TileX(this->tile); + uint top1 = TileY(this->tile); + uint right1 = left1 + this->w - 1; + uint bottom1 = top1 + this->h - 1; + + uint left2 = TileX(ta.tile); + uint top2 = TileY(ta.tile); + uint right2 = left2 + ta.w - 1; + uint bottom2 = top2 + ta.h - 1; + + return !( + left2 > right1 || + right2 < left1 || + top2 > bottom1 || + bottom2 < top1 + ); +} + diff --git a/src/tilearea_type.h b/src/tilearea_type.h index 6c2639cff..15045cb11 100644 --- a/src/tilearea_type.h +++ b/src/tilearea_type.h @@ -16,6 +16,10 @@ /** Represents the covered area of e.g. a rail station */ struct TileArea { + TileIndex tile; ///< The base tile of the area + uint8 w; ///< The width of the area + uint8 h; ///< The height of the area + /** Just construct this tile area */ TileArea() {} @@ -27,21 +31,9 @@ struct TileArea { */ TileArea(TileIndex tile, uint8 w, uint8 h) : tile(tile), w(w), h(h) {} - /** - * Construct this tile area based on two points. - * @param start the start of the area - * @param end the end of the area - */ TileArea(TileIndex start, TileIndex end); - TileIndex tile; ///< The base tile of the area - uint8 w; ///< The width of the area - uint8 h; ///< The height of the area - /** - * Add a single tile to a tile area; enlarge if needed. - * @param to_add The tile to add - */ void Add(TileIndex to_add); /** @@ -54,11 +46,6 @@ struct TileArea { this->h = 0; } - /** - * Does this tile area intersect with another? - * @param ta the other tile area to check against. - * @return true if they intersect. - */ bool Intersects(const TileArea &ta) const; }; |