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map.cpp
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map.cpp
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/*
This file is part of Warzone 2100.
Copyright (C) 1999-2004 Eidos Interactive
Copyright (C) 2005-2020 Warzone 2100 Project
Warzone 2100 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.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file map.c
*
* Utility functions for the map data structure.
*
*/
#include <time.h>
#include <algorithm>
#include "lib/framework/frame.h"
#include "lib/framework/endian_hack.h"
#include "lib/framework/file.h"
#include "lib/framework/physfs_ext.h"
#include "lib/ivis_opengl/tex.h"
#include "lib/netplay/sync_debug.h"
#include <wzmaplib/map.h>
#include "map.h"
#include "hci.h"
#include "projectile.h"
#include "display3d.h"
#include "game.h"
#include "texture.h"
#include "advvis.h"
#include "random.h"
#include "research.h"
#include "mission.h"
#include "gateway.h"
#include "wrappers.h"
#include "mapgrid.h"
#include "qtscript.h"
#include "astar.h"
#include "fpath.h"
#include "levels.h"
#include "lib/framework/wzapp.h"
#include "lib/ivis_opengl/pielighting.h"
#define GAME_TICKS_FOR_DANGER (GAME_TICKS_PER_SEC * 2)
static WZ_THREAD *dangerThread = nullptr;
static WZ_SEMAPHORE *dangerSemaphore = nullptr;
static WZ_SEMAPHORE *dangerDoneSemaphore = nullptr;
struct floodtile
{
uint8_t x;
uint8_t y;
};
static struct floodtile *floodbucket = nullptr;
static int bucketcounter;
static UDWORD lastDangerUpdate = 0;
static int lastDangerPlayer = -1;
//scroll min and max values
SDWORD scrollMinX, scrollMaxX, scrollMinY, scrollMaxY;
//For saves to determine if loading the terrain type override should occur
bool builtInMap;
bool useTerrainOverrides;
/* Structure definitions for loading and saving map data */
struct MAP_SAVEHEADER // : public GAME_SAVEHEADER
{
char aFileType[4];
UDWORD version;
UDWORD width;
UDWORD height;
};
struct MAP_SAVETILE
{
UWORD texture;
UBYTE height;
};
struct GATEWAY_SAVEHEADER
{
UDWORD version;
UDWORD numGateways;
};
struct GATEWAY_SAVE
{
UBYTE x0, y0, x1, y1;
};
/* Sanity check definitions for the save struct file sizes */
#define SAVE_HEADER_SIZE 16
#define SAVE_TILE_SIZE 3
// Maximum expected return value from get height
#define MAX_HEIGHT (256 * ELEVATION_SCALE)
/* The size and contents of the map */
SDWORD mapWidth = 0, mapHeight = 0;
std::unique_ptr<MAPTILE[]> psMapTiles;
std::unique_ptr<uint8_t[]> psBlockMap[AUX_MAX];
std::unique_ptr<uint8_t[]> psAuxMap[MAX_PLAYERS + AUX_MAX]; // yes, we waste one element... eyes wide open... makes API nicer
#define WATER_MIN_DEPTH 500
#define WATER_MAX_DEPTH (WATER_MIN_DEPTH + 400)
static void SetGroundForTile(const char *filename, const char *nametype);
static int getTextureType(const char *textureType);
static bool hasDecals(int i, int j);
static void SetDecals(const char *filename, const char *decal_type);
static void init_tileNames(MAP_TILESET type);
/// The different ground types
static std::vector<GROUND_TYPE> groundTypes;
char *tilesetDir = nullptr;
MAP_TILESET currentMapTileset = MAP_TILESET::ARIZONA;
static int numTile_names;
static std::unique_ptr<char[]> Tile_names = nullptr;
static std::unique_ptr<int[]> map; // 3D array pointer that holds the texturetype
static int numTile_types = 0;
static std::unique_ptr<bool[]> mapDecals; // array that tells us what tile is a decal
#define MAX_TERRAIN_TILES 0x0200 // max that we support (for now), see TILE_NUMMASK
/* Look up table that returns the terrain type of a given tile texture */
UBYTE terrainTypes[MAX_TILE_TEXTURES];
#if 0
void syncLogDumpAuxMaps()
{
for (int auxIdx = 0; auxIdx < MAX_PLAYERS + AUX_MAX; auxIdx++)
{
syncDebug("psAuxMap[%d]:", auxIdx);
for (int y = 0; y < mapHeight; ++y)
{
std::string rowDetails;
for (int x = 0; x < mapWidth; ++x)
{
auto val = auxTile(x, y, auxIdx);
rowDetails += std::to_string(val) + ",";
}
syncDebug("psAuxMap[%d] row[%d]: %s", auxIdx, y, rowDetails.c_str());
}
}
for (int idx = 0; idx < AUX_MAX; idx++)
{
syncDebug("psBlockMap[%d]:", idx);
for (int y = 0; y < mapHeight; ++y)
{
std::string rowDetails;
for (int x = 0; x < mapWidth; ++x)
{
auto val = blockTile(x, y, idx);
rowDetails += std::to_string(val) + ",";
}
syncDebug("psBlockMap[%d] row[%d]: %s", idx, y, rowDetails.c_str());
}
}
}
#endif
const GROUND_TYPE& getGroundType(size_t idx)
{
return groundTypes[idx];
}
size_t getNumGroundTypes()
{
return groundTypes.size();
}
static void init_tileNames(MAP_TILESET type)
{
char *pFileData = nullptr;
char name[MAX_STR_LENGTH] = {'\0'};
int numlines = 0, i = 0, cnt = 0;
uint32_t fileSize = 0;
pFileData = fileLoadBuffer;
switch (type)
{
case MAP_TILESET::ARIZONA:
{
if (!loadFileToBuffer("tileset/arizona_enum.txt", pFileData, FILE_LOAD_BUFFER_SIZE, &fileSize))
{
debug(LOG_FATAL, "tileset/arizona_enum.txt not found. Aborting.");
abort();
}
sscanf(pFileData, "%255[^,'\r\n],%d%n", name, &numlines, &cnt);
pFileData += cnt;
if (strcmp("arizona_enum", name))
{
debug(LOG_FATAL, "%s found, but was expecting arizona_enum, aborting.", name);
abort();
}
break;
}
case MAP_TILESET::URBAN:
{
if (!loadFileToBuffer("tileset/urban_enum.txt", pFileData, FILE_LOAD_BUFFER_SIZE, &fileSize))
{
debug(LOG_FATAL, "tileset/urban_enum.txt not found. Aborting.");
abort();
}
sscanf(pFileData, "%255[^,'\r\n],%d%n", name, &numlines, &cnt);
pFileData += cnt;
if (strcmp("urban_enum", name))
{
debug(LOG_FATAL, "%s found, but was expecting urban_enum, aborting.", name);
abort();
}
break;
}
case MAP_TILESET::ROCKIES:
{
if (!loadFileToBuffer("tileset/rockie_enum.txt", pFileData, FILE_LOAD_BUFFER_SIZE, &fileSize))
{
debug(LOG_FATAL, "tileset/rockie_enum.txt not found. Aborting.");
abort();
}
sscanf(pFileData, "%255[^,'\r\n],%d%n", name, &numlines, &cnt);
pFileData += cnt;
if (strcmp("rockie_enum", name))
{
debug(LOG_FATAL, "%s found, but was expecting rockie_enum, aborting.", name);
abort();
}
break;
}
}
debug(LOG_TERRAIN, "name: %s, with %d entries", name, numlines);
if (numlines == 0 || numlines > MAX_TERRAIN_TILES)
{
debug(LOG_FATAL, "Rockie_enum parameter is out of range (%d). Aborting.", numlines);
abort();
}
numTile_names = numlines;
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
Tile_names = std::make_unique<char[]>(numlines * MAX_STR_LENGTH);
for (i = 0; i < numlines; i++)
{
sscanf(pFileData, "%255[^,'\r\n]%n", &Tile_names[i * MAX_STR_LENGTH], &cnt);
pFileData += cnt;
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
}
}
static MAP_TILESET mapTilesetDirToTileset(const char *dir)
{
// For Arizona
if (strcmp(dir, "texpages/tertilesc1hw") == 0)
{
return MAP_TILESET::ARIZONA;
}
// for Urban
else if (strcmp(dir, "texpages/tertilesc2hw") == 0)
{
return MAP_TILESET::URBAN;
}
// for Rockie
else if (strcmp(dir, "texpages/tertilesc3hw") == 0)
{
return MAP_TILESET::ROCKIES;
}
else
{
debug(LOG_ERROR, "unsupported tileset: %s", dir);
debug(LOG_POPUP, "This is a UNSUPPORTED map with a custom tileset.\nDefaulting to tertilesc1hw -- map may look strange!");
}
return MAP_TILESET::ARIZONA; // fallback
}
static std::string appendToFileName(const std::string &origFilename, const char *appendStr)
{
std::string newFilename = origFilename;
std::string fileExtension = "";
// right-most "." index
size_t extensionSeparatorPos = origFilename.rfind('.');
if (extensionSeparatorPos != std::string::npos)
{
// separate the file extension
fileExtension = origFilename.substr(extensionSeparatorPos);
newFilename = origFilename.substr(0, extensionSeparatorPos);
}
newFilename += appendStr;
newFilename += fileExtension;
return newFilename;
}
static std::string getTextureVariant(const std::string &origTextureFilename, const char *variantStr)
{
std::string variantFileName = appendToFileName(origTextureFilename, variantStr);
std::string variantPath = std::string("texpages/") + variantFileName;
auto variantImageLoadPath = gfx_api::imageLoadFilenameFromInputFilename(WzString::fromUtf8(variantPath));
if (PHYSFS_exists(variantImageLoadPath))
{
return variantFileName;
}
return "";
}
static void mapLoadTertiles(bool preview, MAP_TILESET tileSet, const char* tertilesFile)
{
char *pFileData = fileLoadBuffer;
char tilename[MAX_STR_LENGTH] = {'\0'};
char textureName[MAX_STR_LENGTH] = {'\0'};
char textureType[MAX_STR_LENGTH] = {'\0'};
double textureSize = 0.f;
int numlines = 0;
int cnt = 0, i = 0;
uint32_t fileSize = 0;
// load the override terrain types
if (!preview && useTerrainOverrides && !loadTerrainTypeMapOverride(tileSet))
{
debug(LOG_POPUP, "Failed to load terrain type override");
}
init_tileNames(tileSet);
if (!loadFileToBuffer(tertilesFile, pFileData, FILE_LOAD_BUFFER_SIZE, &fileSize))
{
debug(LOG_FATAL, "%s not found, aborting.", tertilesFile);
abort();
}
sscanf(pFileData, "%255[^,'\r\n],%d%n", tilename, &numlines, &cnt);
pFileData += cnt;
if (!strstr(tertilesFile, tilename))
{
debug(LOG_FATAL, "%s found, but was expecting %s! Aborting.", tilename, tertilesFile);
abort();
}
debug(LOG_TERRAIN, "tilename: %s, with %d entries", tilename, numlines);
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
groundTypes.resize(numlines);
for (i = 0; i < numlines; i++)
{
sscanf(pFileData, "%255[^,'\r\n],%255[^,'\r\n],%lf%n", textureType, textureName, &textureSize, &cnt);
pFileData += cnt;
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
int textureTypeIdx = getTextureType(textureType);
groundTypes[textureTypeIdx].textureName = textureName;
groundTypes[textureTypeIdx].textureSize = static_cast<float>(textureSize);
groundTypes[textureTypeIdx].normalMapTextureName = getTextureVariant(textureName, "_nm");
groundTypes[textureTypeIdx].specularMapTextureName = getTextureVariant(textureName, "_sm");
groundTypes[textureTypeIdx].heightMapTextureName = getTextureVariant(textureName, "_hm");
groundTypes[textureTypeIdx].highQualityTextures = !groundTypes[textureTypeIdx].normalMapTextureName.empty() || !groundTypes[textureTypeIdx].specularMapTextureName.empty() || !groundTypes[textureTypeIdx].heightMapTextureName.empty();
}
}
static void SetDecals(MAP_TILESET tileset)
{
if (tileset == MAP_TILESET::ARIZONA)
{
fallback:
SetDecals("tileset/arizonadecals.txt", "arizona_decals");
}
// for Urban
else if (tileset == MAP_TILESET::URBAN)
{
SetDecals("tileset/urbandecals.txt", "urban_decals");
}
// for Rockie
else if (tileset == MAP_TILESET::ROCKIES)
{
SetDecals("tileset/rockiedecals.txt", "rockie_decals");
}
// When a map uses something other than the above, we fallback to Arizona
else
{
debug(LOG_ERROR, "unsupported tileset: %s", tilesetDir);
// HACK: / FIXME: For now, we just pretend this is a tertilesc1hw map.
goto fallback;
}
}
// This is the main loading routine to get all the map's parameters set.
// Once it figures out what tileset we need, we then parse the files for that tileset.
// Currently, we only support 3 tilesets. Arizona, Urban, and Rockie
static bool mapLoadGroundTypes(bool preview)
{
debug(LOG_TERRAIN, "tileset: %s", tilesetDir);
// For Arizona
if (currentMapTileset == MAP_TILESET::ARIZONA)
{
fallback:
mapLoadTertiles(preview, MAP_TILESET::ARIZONA, "tileset/tertilesc1hwGtype.txt");
SetGroundForTile("tileset/arizonaground.txt", "arizona_ground");
}
// for Urban
else if (currentMapTileset == MAP_TILESET::URBAN)
{
mapLoadTertiles(preview, MAP_TILESET::URBAN, "tileset/tertilesc2hwGtype.txt");
SetGroundForTile("tileset/urbanground.txt", "urban_ground");
}
// for Rockie
else if (currentMapTileset == MAP_TILESET::ROCKIES)
{
mapLoadTertiles(preview, MAP_TILESET::ROCKIES, "tileset/tertilesc3hwGtype.txt");
SetGroundForTile("tileset/rockieground.txt", "rockie_ground");
}
// When a map uses something other than the above, we fallback to Arizona
else
{
debug(LOG_ERROR, "unsupported tileset: %s", tilesetDir);
debug(LOG_POPUP, "This is a UNSUPPORTED map with a custom tileset.\nDefaulting to tertilesc1hw -- map may look strange!");
// HACK: / FIXME: For now, we just pretend this is a tertilesc1hw map.
goto fallback;
}
SetDecals(currentMapTileset);
return true;
}
// Parse the file to set up the ground type
static void SetGroundForTile(const char *filename, const char *nametype)
{
char *pFileData = nullptr;
char tilename[MAX_STR_LENGTH] = {'\0'};
char val1[MAX_STR_LENGTH], val2[MAX_STR_LENGTH], val3[MAX_STR_LENGTH], val4[MAX_STR_LENGTH];
int numlines = 0;
int cnt = 0, i = 0;
uint32_t fileSize = 0;
pFileData = fileLoadBuffer;
if (!loadFileToBuffer(filename, pFileData, FILE_LOAD_BUFFER_SIZE, &fileSize))
{
debug(LOG_FATAL, "%s not found, aborting.", filename);
abort();
}
sscanf(pFileData, "%255[^,'\r\n],%d%n", tilename, &numlines, &cnt);
pFileData += cnt;
if (strcmp(tilename, nametype))
{
debug(LOG_FATAL, "%s found, but was expecting %s, aborting.", tilename, nametype);
abort();
}
debug(LOG_TERRAIN, "tilename: %s, with %d entries", tilename, numlines);
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
numTile_types = numlines;
map = std::unique_ptr<int[]> (new int[numlines * 2 * 2]());
for (i = 0; i < numlines; i++)
{
sscanf(pFileData, "%255[^,'\r\n],%255[^,'\r\n],%255[^,'\r\n],%255[^,'\r\n]%n", val1, val2, val3, val4, &cnt);
pFileData += cnt;
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
// inline int iA(int i, int j, int k){ return i*N2*N3 + j*N3 + k; }
// in case it isn't obvious, this is a 3D array, and using pointer math to access each element.
// so map[10][0][1] would be map[10*2*2 + 0 + 1] == map[41]
// map[10][1][0] == map[10*2*2 + 2 + 0] == map[42]
map[i * 2 * 2 + 0 * 2 + 0] = getTextureType(val4);
map[i * 2 * 2 + 0 * 2 + 1] = getTextureType(val2);
map[i * 2 * 2 + 1 * 2 + 0] = getTextureType(val3);
map[i * 2 * 2 + 1 * 2 + 1] = getTextureType(val1);
}
}
// getTextureType() -- just returns the value for that texture type.
static int getTextureType(const char *textureType)
{
int i = 0;
for (i = 0; i < numTile_names; i++)
{
if (!strcmp(textureType, &Tile_names[i * MAX_STR_LENGTH]))
{
return i;
}
}
debug(LOG_FATAL, "unknown type [%s] found, aborting!", textureType);
abort();
}
// groundFromMapTile() just a simple lookup table, using pointers to access the 3D map array
// (quasi) pointer math is: map[num elements][2][2]
// so map[10][0][1] would be map[10*2*2 + 0*2 + 1] == map[41]
static int groundFromMapTile(int tile, int j, int k)
{
auto tileNumber = TileNumber_tile(tile);
if (tileNumber >= numTile_types)
{
debug(LOG_INFO, "Invalid ground tile number: %d", (int)tileNumber);
return 0;
}
return map[TileNumber_tile(tile) * 2 * 2 + j * 2 + k];
}
static void rotFlip(int tile, int *i, int *j)
{
int texture = TileNumber_texture(tile);
int rot;
int tmpMap[2][2], invmap[4][2];
if (texture & TILE_XFLIP)
{
*i = 1 - *i;
}
if (texture & TILE_YFLIP)
{
*j = 1 - *j;
}
tmpMap[0][0] = 0; invmap[0][0] = 0; invmap[0][1] = 0;
tmpMap[1][0] = 1; invmap[1][0] = 1; invmap[1][1] = 0;
tmpMap[1][1] = 2; invmap[2][0] = 1; invmap[2][1] = 1;
tmpMap[0][1] = 3; invmap[3][0] = 0; invmap[3][1] = 1;
rot = tmpMap[*i][*j];
rot -= (texture & TILE_ROTMASK) >> TILE_ROTSHIFT;
while (rot < 0)
{
rot += 4;
}
*i = invmap[rot][0];
*j = invmap[rot][1];
}
/// Tries to figure out what ground type a grid point is from the surrounding tiles
static int determineGroundType(int x, int y, const char *tileset)
{
int ground[2][2];
int votes[2][2];
int weight[2][2];
int i, j, tile;
int a, b, best;
MAPTILE *psTile;
if (x < 0 || y < 0 || x >= mapWidth || y >= mapHeight)
{
return 0; // just return the first ground type
}
// check what tiles surround this grid point
for (i = 0; i < 2; i++)
{
for (j = 0; j < 2; j++)
{
if (x + i - 1 < 0 || y + j - 1 < 0 || x + i - 1 >= mapWidth || y + j - 1 >= mapHeight)
{
psTile = nullptr;
tile = 0;
}
else
{
psTile = mapTile(x + i - 1, y + j - 1);
tile = psTile->texture;
}
a = i;
b = j;
rotFlip(tile, &a, &b);
ground[i][j] = groundFromMapTile(tile, a, b);
votes[i][j] = 0;
// votes are weighted, some tiles have more weight than others
weight[i][j] = 10;
if (psTile)
{
// cliff tiles have higher priority, to be clearly visible
if (terrainType(psTile) == TER_CLIFFFACE)
{
weight[i][j] = 100;
}
// water bottom has lower priority, to stay inside water
if (terrainType(psTile) == TER_WATER)
{
weight[i][j] = 1;
}
}
}
}
// now vote, because some maps have seams
for (i = 0; i < 2; i++)
{
for (j = 0; j < 2; j++)
{
for (a = 0; a < 2; a++)
{
for (b = 0; b < 2; b++)
{
if (ground[i][j] == ground[a][b])
{
votes[i][j] += weight[a][b];
}
}
}
}
}
// and determine the winner
best = -1;
a = 0;
b = 0;
for (i = 0; i < 2; i++)
{
for (j = 0; j < 2; j++)
{
if (votes[i][j] > best || (votes[i][j] == best && ground[i][j] < ground[a][b]))
{
best = votes[i][j];
a = i;
b = j;
}
}
}
return ground[a][b];
}
// SetDecals()
// reads in the decal array for the requested tileset.
static void SetDecals(const char *filename, const char *decal_type)
{
char decalname[MAX_STR_LENGTH], *pFileData;
int numlines, cnt, i, tiledecal;
uint32_t fileSize;
pFileData = fileLoadBuffer;
if (!loadFileToBuffer(filename, pFileData, FILE_LOAD_BUFFER_SIZE, &fileSize))
{
debug(LOG_POPUP, "%s not found, aborting.", filename);
abort();
}
sscanf(pFileData, "%255[^,'\r\n],%d%n", decalname, &numlines, &cnt);
pFileData += cnt;
if (strcmp(decalname, decal_type))
{
debug(LOG_POPUP, "%s found, but was expecting %s, aborting.", decalname, decal_type);
abort();
}
debug(LOG_TERRAIN, "reading: %s, with %d entries", filename, numlines);
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
// value initialization sets everything to false.
mapDecals = std::make_unique<bool[]>(MAX_TERRAIN_TILES);
for (i = 0; i < numlines; i++)
{
tiledecal = -1;
sscanf(pFileData, "%d%n", &tiledecal, &cnt);
pFileData += cnt;
//increment the pointer to the start of the next record
pFileData = strchr(pFileData, '\n') + 1;
if ((unsigned)tiledecal > MAX_TERRAIN_TILES)
{
debug(LOG_ERROR, "Tile index is out of range! Was %d, our max is %d", tiledecal, MAX_TERRAIN_TILES);
continue;
}
mapDecals[tiledecal] = true;
}
}
// hasDecals()
// Checks to see if the requested tile has a decal on it or not.
static bool hasDecals(int i, int j)
{
int index = 0;
index = TileNumber_tile(mapTile(i, j)->texture);
if (index > MAX_TERRAIN_TILES)
{
debug(LOG_FATAL, "Tile index is out of range! Was %d, our max is %d", index, MAX_TERRAIN_TILES);
abort();
}
return mapDecals[index];
}
// mapSetGroundTypes()
// Sets the ground type to be a decal or not
static bool mapSetGroundTypes()
{
for (int j = 0; j < mapHeight; j++)
{
for (int i = 0; i < mapWidth; i++)
{
MAPTILE *psTile = mapTile(i, j);
psTile->ground = determineGroundType(i, j, tilesetDir);
if (hasDecals(i, j))
{
SET_TILE_DECAL(psTile);
}
else
{
CLEAR_TILE_DECAL(psTile);
}
}
}
return true;
}
bool mapReloadGroundTypes()
{
if (!tilesetDir)
{
return false;
}
mapLoadGroundTypes(false);
if (!mapSetGroundTypes())
{
return false;
}
return true;
}
static bool isWaterVertex(int x, int y)
{
if (x < 1 || y < 1 || x > mapWidth - 1 || y > mapHeight - 1)
{
return false;
}
return terrainType(mapTile(x, y)) == TER_WATER && terrainType(mapTile(x - 1, y)) == TER_WATER
&& terrainType(mapTile(x, y - 1)) == TER_WATER && terrainType(mapTile(x - 1, y - 1)) == TER_WATER;
}
static void generateRiverbed()
{
MersenneTwister mt(12345); // 12345 = random seed.
int maxIdx = 1;
ASSERT_OR_RETURN(, mapWidth > 0 && mapHeight > 0, "Invalid map width or height (%d x %d)", mapWidth, mapHeight);
std::vector<int> idx(static_cast<size_t>(mapWidth) * static_cast<size_t>(mapHeight), 0);
int x, y, l = 0;
for (y = 0; y < mapHeight; y++)
{
for (x = 0; x < mapWidth; x++)
{
// initially set the seabed index to 0 for ground and 100 for water
int val = 100 * isWaterVertex(x, y);
idx[x + (y * mapWidth)] = val;
if (val > 0)
{
l++;
}
}
}
debug(LOG_TERRAIN, "Generating riverbed for %d water tiles.", l);
if (l == 0) // no water on map
{
return;
}
l = 0;
do
{
maxIdx = 1;
for (y = 1; y < mapHeight - 2; y++)
{
for (x = 1; x < mapWidth - 2; x++)
{
int rowOffset = (y * mapWidth);
auto& idxVal = idx[x + rowOffset];
if (idxVal > 0)
{
idxVal = (idx[(x - 1) + rowOffset] + idx[x + ((y - 1) * mapWidth)] + idx[x + ((y + 1) * mapWidth)] + idx[(x + 1) + rowOffset]) / 4;
if (idxVal > maxIdx)
{
maxIdx = idxVal;
}
}
}
}
++l;
debug(LOG_TERRAIN, "%d%% completed after %d iterations", 10 * (100 - maxIdx), l);
}
while (maxIdx > 90 && l < 20);
for (y = 0; y < mapHeight; y++)
{
for (x = 0; x < mapWidth; x++)
{
auto& idxVal = idx[x + (y * mapWidth)];
if (idxVal > maxIdx)
{
idxVal = maxIdx;
}
if (idxVal < 1)
{
idxVal = 1;
}
if (isWaterVertex(x, y))
{
l = (WATER_MAX_DEPTH + 1 - WATER_MIN_DEPTH) * (maxIdx - idxVal - mt.u32() % (maxIdx / 6 + 1));
mapTile(x, y)->height -= WATER_MIN_DEPTH - (l / maxIdx);
}
}
}
}
static bool afterMapLoad();
class WzMapBinaryPhysFSStream : public WzMap::BinaryIOStream
{
public:
WzMapBinaryPhysFSStream(const std::string& filename, WzMap::BinaryIOStream::OpenMode mode)
{
switch (mode)
{
case WzMap::BinaryIOStream::OpenMode::READ:
pFile = PHYSFS_openRead(filename.c_str());
break;
case WzMap::BinaryIOStream::OpenMode::WRITE:
pFile = PHYSFS_openWrite(filename.c_str());
break;
}
if (pFile)
{
WZ_PHYSFS_SETBUFFER(pFile, 4096)//;
}
}
virtual ~WzMapBinaryPhysFSStream()
{
close();
};
bool openedFile() const { return pFile != nullptr; }
virtual optional<size_t> readBytes(void *buffer, size_t len) override
{
if (!pFile) { return nullopt; }
PHYSFS_sint64 result = WZ_PHYSFS_readBytes(pFile, buffer, static_cast<uint32_t>(len));
if (result < 0)
{
// failed
return nullopt;
}
return static_cast<size_t>(result);
}
virtual optional<size_t> writeBytes(const void *buffer, size_t len) override
{
if (!pFile) { return nullopt; }
PHYSFS_sint64 result = WZ_PHYSFS_writeBytes(pFile, buffer, static_cast<uint32_t>(len));
if (result < 0)
{
// failed
return nullopt;
}
return static_cast<size_t>(result);
}
virtual bool close() override
{
if (pFile == nullptr)
{
return false;
}
PHYSFS_close(pFile);
pFile = nullptr;
return true;
}
virtual bool endOfStream() override
{
if (!pFile) { return false; }
return PHYSFS_eof(pFile);
}
private:
PHYSFS_File *pFile = nullptr;
};
std::unique_ptr<WzMap::BinaryIOStream> WzMapPhysFSIO::openBinaryStream(const std::string& filename, WzMap::BinaryIOStream::OpenMode mode)
{
WzMapBinaryPhysFSStream* pStream = new WzMapBinaryPhysFSStream((m_basePath.empty()) ? filename : pathJoin(m_basePath, filename), mode);
if (!pStream->openedFile())
{
delete pStream;
return nullptr;
}
return std::unique_ptr<WzMap::BinaryIOStream>(pStream);
}
bool WzMapPhysFSIO::loadFullFile(const std::string& filename, std::vector<char>& fileData)
{
std::string filenameFull = (m_basePath.empty()) ? filename : pathJoin(m_basePath, filename);
if (!PHYSFS_exists(filenameFull.c_str()))
{
return false;
}
return loadFileToBufferVector(filenameFull.c_str(), fileData, true, true);
}
bool WzMapPhysFSIO::writeFullFile(const std::string& filename, const char *ppFileData, uint32_t fileSize)
{
std::string filenameFull = (m_basePath.empty()) ? filename : pathJoin(m_basePath, filename);
return saveFile(filenameFull.c_str(), ppFileData, fileSize);
}
bool WzMapPhysFSIO::makeDirectory(const std::string& directoryPath)
{
std::string directoryPathFull = (m_basePath.empty()) ? directoryPath : pathJoin(m_basePath, directoryPath);
return PHYSFS_mkdir(directoryPath.c_str()) != 0;
}
const char* WzMapPhysFSIO::pathSeparator() const
{
return "/"; // the platform-independent PhysFS path separator
}
bool WzMapPhysFSIO::enumerateFiles(const std::string& basePath, const std::function<bool (const char* file)>& enumFunc)
{
std::string basePathFull = (m_basePath.empty()) ? basePath : pathJoin(m_basePath, basePath);
return WZ_PHYSFS_enumerateFiles(basePathFull.c_str(), [basePathFull, enumFunc](const char* file) -> bool {
if (file == nullptr) { return true; }
if (*file == '\0') { return true; }
std::string fullPath = basePathFull + "/" + file;
if (WZ_PHYSFS_isDirectory(fullPath.c_str()))
{
return true; // skip and continue
}
return enumFunc(file);
});
}
bool WzMapPhysFSIO::enumerateFolders(const std::string& basePath, const std::function<bool (const char* file)>& enumFunc)
{
std::string basePathFull = (m_basePath.empty()) ? basePath : pathJoin(m_basePath, basePath);
return WZ_PHYSFS_enumerateFolders(basePathFull.c_str(), enumFunc);
}
WzMapDebugLogger::~WzMapDebugLogger()
{ }
void WzMapDebugLogger::printLog(WzMap::LoggingProtocol::LogLevel level, const char *function, int line, const char *str)
{
code_part logPart = LOG_INFO;
switch (level)
{
case WzMap::LoggingProtocol::LogLevel::Info_Verbose:
logPart = LOG_NEVER;
break;
case WzMap::LoggingProtocol::LogLevel::Info:
logPart = LOG_MAP;
break;
case WzMap::LoggingProtocol::LogLevel::Warning:
logPart = LOG_WARNING;
break;
case WzMap::LoggingProtocol::LogLevel::Error:
logPart = LOG_ERROR;
break;
}
if (enabled_debug[logPart])
{
_debug(line, logPart, function, "%s", str);
}
}
/* Initialise the map structure */
bool mapLoad(char const *filename)
{
WzMapPhysFSIO mapIO;
WzMapDebugLogger debugLoggerInstance;
std::shared_ptr<WzMap::MapData> loadedMap = loadMapData(filename, mapIO, &debugLoggerInstance);
if (!loadedMap)
{
// loadMapData call handles logging errors
return false;
}