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(svn r20334) -Codechange: reorder the unmovable bits a bit for futher extension

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pull/155/head
rubidium 14 years ago
parent f273f2a656
commit 5ed887648c
5 changed files with 44 additions and 30 deletions
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4
docs/landscape.html
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@ -1568,8 +1568,7 @@
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the object (for lighthouses and transmitters normally <tt>10</tt>)</li>
<li>m2: see company statue
<li>m3 bits 4..2: size of HQ
<li>m3 bits 1..0: section identification of the HQ
<li>m3: offset to northern most tile
<li>m5: tile type:
<table>
<tr>
@ -1603,6 +1602,7 @@
</table>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 2..5 : Animation counter</li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>

18
src/saveload/afterload.cpp
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@ -1792,13 +1792,25 @@ bool AfterLoadGame()
if (IsTileType(t, MP_UNMOVABLE) && HasBit(_m[t].m5, 7)) {
/* Move size and part identification of HQ out of the m5 attribute,
* on new locations */
uint8 old_m5 = _m[t].m5;
_m[t].m3 = GB(_m[t].m5, 0, 5);
_m[t].m5 = UNMOVABLE_HQ;
SetCompanyHQSize(t, GB(old_m5, 2, 3));
SetCompanyHQSection(t, GB(old_m5, 0, 2));
}
}
}
if (CheckSavegameVersion(144)) {
for (TileIndex t = 0; t < map_size; t++) {
if (!IsTileType(t, MP_UNMOVABLE)) continue;
/* Reordering/generalisation of the unmovable bits. */
UnmovableType type = GetUnmovableType(t);
SetCompanyHQSize(t, type == UNMOVABLE_HQ ? GB(_m[t].m3, 2, 3) : 0);
SetCompanyHQSection(t, type == UNMOVABLE_HQ ? GB(_m[t].m3, 1, 1) << 4 | GB(_m[t].m3, 0, 1) : 0);
/* Make sure those bits are clear as well! */
_m[t].m4 = 0;
_me[t].m7 = 0;
}
}
if (CheckSavegameVersion(113)) {
/* allow_town_roads is added, set it if town_layout wasn't TL_NO_ROADS */

3
src/saveload/saveload.cpp
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@ -207,8 +207,9 @@
* 141 19799
* 142 20003
* 143 20048
* 144 20334
*/
extern const uint16 SAVEGAME_VERSION = 143; ///< current savegame version of OpenTTD
extern const uint16 SAVEGAME_VERSION = 144; ///< current savegame version of OpenTTD
SavegameType _savegame_type; ///< type of savegame we are loading

3
src/unmovable_cmd.cpp
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@ -255,7 +255,8 @@ static void DrawTile_Unmovable(TileInfo *ti)
PaletteID palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
const DrawTileSprites *t = &_unmovable_display_datas[GetCompanyHQSize(ti->tile) << 2 | GetCompanyHQSection(ti->tile)];
uint8 offset = GetCompanyHQSection(ti->tile);
const DrawTileSprites *t = &_unmovable_display_datas[GetCompanyHQSize(ti->tile) << 2 | GB(offset, 4, 1) << 1 | GB(offset, 0, 1)];
DrawGroundSprite(t->ground.sprite, palette);
if (IsInvisibilitySet(TO_STRUCTURES)) break;

46
src/unmovable_map.h
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@ -108,50 +108,50 @@ static inline TownID GetStatueTownID(TileIndex t)
/**
* Get the 'stage' of the HQ.
* @param t a tile of the HQ.
* @pre IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t)
* @pre IsTileType(t, MP_UNMOVABLE)
* @return the 'stage' of the HQ.
*/
static inline byte GetCompanyHQSize(TileIndex t)
{
assert(IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t));
return GB(_m[t].m3, 2, 3);
assert(IsTileType(t, MP_UNMOVABLE));
return GB(_m[t].m6, 2, 4);
}
/**
* Set the 'stage' of the HQ.
* @param t a tile of the HQ.
* @param size the actual stage of the HQ
* @pre IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t)
* @pre IsTileType(t, MP_UNMOVABLE)
*/
static inline void SetCompanyHQSize(TileIndex t, uint8 size)
{
assert(IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t));
SB(_m[t].m3, 2, 3, size);
assert(IsTileType(t, MP_UNMOVABLE));
SB(_m[t].m6, 2, 4, size);
}
/**
* Get the 'section' of the HQ.
* The scetion is in fact which side of teh HQ the tile represent
* @param t a tile of the HQ.
* @pre IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t)
* @pre IsTileType(t, MP_UNMOVABLE)
* @return the 'section' of the HQ.
*/
static inline byte GetCompanyHQSection(TileIndex t)
{
assert(IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t));
return GB(_m[t].m3, 0, 2);
assert(IsTileType(t, MP_UNMOVABLE));
return _m[t].m3;
}
/**
* Set the 'section' of the HQ.
* @param t a tile of the HQ.
* @param section to be set.
* @pre IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t)
* @pre IsTileType(t, MP_UNMOVABLE)
*/
static inline void SetCompanyHQSection(TileIndex t, uint8 section)
{
assert(IsTileType(t, MP_UNMOVABLE) && IsCompanyHQ(t));
SB(_m[t].m3, 0, 2, section);
assert(IsTileType(t, MP_UNMOVABLE));
_m[t].m3 = section;
}
/**
@ -177,16 +177,17 @@ static inline void EnlargeCompanyHQ(TileIndex t, byte size)
/**
* Make an Unmovable tile.
* @note do not use this function directly. Use one of the other Make* functions.
* @param t the tile to make unmovable.
* @param u the unmovable type of the tile.
* @param o the new owner of the tile.
* @param t The tile to make unmovable.
* @param u The unmovable type of the tile.
* @param o The new owner of the tile.
* @param offset The offset to the northern tile of this object
*/
static inline void MakeUnmovable(TileIndex t, UnmovableType u, Owner o)
static inline void MakeUnmovable(TileIndex t, UnmovableType u, Owner o, uint8 offset = 0)
{
SetTileType(t, MP_UNMOVABLE);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m3 = offset;
_m[t].m4 = 0;
_m[t].m5 = u;
SB(_m[t].m6, 2, 4, 0);
@ -242,8 +243,7 @@ static inline void MakeOwnedLand(TileIndex t, Owner o)
*/
static inline void MakeUnmovableHQHelper(TileIndex t, uint8 section, Owner o)
{
MakeUnmovable(t, UNMOVABLE_HQ, o);
SetCompanyHQSection(t, section);
MakeUnmovable(t, UNMOVABLE_HQ, o, section);
}
/**
@ -253,10 +253,10 @@ static inline void MakeUnmovableHQHelper(TileIndex t, uint8 section, Owner o)
*/
static inline void MakeCompanyHQ(TileIndex t, Owner o)
{
MakeUnmovableHQHelper(t, 0, o);
MakeUnmovableHQHelper(t + TileDiffXY(0, 1), 1, o);
MakeUnmovableHQHelper(t + TileDiffXY(1, 0), 2, o);
MakeUnmovableHQHelper(t + TileDiffXY(1, 1), 3, o);
MakeUnmovableHQHelper(t, 0x00, o);
MakeUnmovableHQHelper(t + TileDiffXY(0, 1), 0x01, o);
MakeUnmovableHQHelper(t + TileDiffXY(1, 0), 0x10, o);
MakeUnmovableHQHelper(t + TileDiffXY(1, 1), 0x11, o);
}
#endif /* UNMOVABLE_MAP_H */

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