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Used curved instead of square circular area for mapgen water desert removal

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This commit is contained in:
Jonathan G Rennison
2024-01-09 03:18:02 +00:00
parent 69f7c3e63b
commit e0361791fd
3 changed files with 9 additions and 14 deletions
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13
src/landscape.cpp
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@@ -1115,8 +1115,7 @@ static bool MakeLake(TileIndex tile, void *user_data)
MakeRiver(tile, Random());
MarkTileDirtyByTile(tile);
/* Remove desert directly around the river tile. */
TileIndex t = tile;
CircularTileSearch(&t, _settings_game.game_creation.lake_tropics_width, RiverModifyDesertZone, nullptr);
IterateCurvedCircularTileArea(tile, _settings_game.game_creation.lake_tropics_width, RiverModifyDesertZone, nullptr);
return false;
}
}
@@ -1186,10 +1185,9 @@ static bool RiverMakeWider(TileIndex tile, void *data)
if (IsValidTile(tile) && !IsWaterTile(tile) && GetTileSlope(tile) == GetTileSlope(*(TileIndex *)data)) {
MakeRiver(tile, Random());
/* Remove desert directly around the river tile. */
TileIndex cur_tile = tile;
MarkTileDirtyByTile(cur_tile);
CircularTileSearch(&cur_tile, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
MarkTileDirtyByTile(tile);
IterateCurvedCircularTileArea(tile, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
}
return false;
}
@@ -1213,7 +1211,7 @@ static void River_FoundEndNode(AyStar *aystar, OpenListNode *current)
CircularTileSearch(&tile, radius + RandomRange(1), RiverMakeWider, (void *)&path->node.tile);
} else {
/* Remove desert directly around the river tile. */
CircularTileSearch(&tile, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
IterateCurvedCircularTileArea(tile, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
}
}
}
@@ -1326,8 +1324,7 @@ static bool FlowRiver(TileIndex spring, TileIndex begin, uint min_river_length)
MakeRiver(lakeCenter, Random());
MarkTileDirtyByTile(lakeCenter);
/* Remove desert directly around the river tile. */
CircularTileSearch(&lakeCenter, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
lakeCenter = end;
IterateCurvedCircularTileArea(lakeCenter, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
// Setting lake size +- 25%
const auto random_percentage = 75 + RandomRange(50);

2
src/water.h
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@@ -40,7 +40,7 @@ void DrawShoreTile(Slope tileh);
void MakeWaterKeepingClass(TileIndex tile, Owner o);
void CheckForDockingTile(TileIndex t);
bool RiverModifyDesertZone(TileIndex tile, void *data);
void RiverModifyDesertZone(TileIndex tile, void *data);
void MakeRiverAndModifyDesertZoneAround(TileIndex tile);
static const uint RIVER_OFFSET_DESERT_DISTANCE = 5; ///< Circular tile search radius to create non-desert around a river tile.

8
src/water_cmd.cpp
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@@ -443,10 +443,9 @@ CommandCost CmdBuildLock(TileIndex tile, DoCommandFlag flags, uint32_t p1, uint3
}
/** Callback to create non-desert around a river tile. */
bool RiverModifyDesertZone(TileIndex tile, void *)
void RiverModifyDesertZone(TileIndex tile, void *)
{
if (GetTropicZone(tile) == TROPICZONE_DESERT) SetTropicZone(tile, TROPICZONE_NORMAL);
return false;
}
/**
@@ -459,7 +458,7 @@ void MakeRiverAndModifyDesertZoneAround(TileIndex tile)
MarkTileDirtyByTile(tile);
/* Remove desert directly around the river tile. */
CircularTileSearch(&tile, RIVER_OFFSET_DESERT_DISTANCE, RiverModifyDesertZone, nullptr);
IterateCurvedCircularTileArea(tile, RIVER_OFFSET_DESERT_DISTANCE, RiverModifyDesertZone, nullptr);
}
/**
@@ -525,8 +524,7 @@ CommandCost CmdBuildCanal(TileIndex tile, DoCommandFlag flags, uint32_t p1, uint
case WATER_CLASS_RIVER:
MakeRiver(current_tile, Random());
if (_game_mode == GM_EDITOR) {
TileIndex tile2 = current_tile;
CircularTileSearch(&tile2, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
IterateCurvedCircularTileArea(current_tile, _settings_game.game_creation.river_tropics_width, RiverModifyDesertZone, nullptr);
}
break;