Mirrorlandia_minetest/minetestmapper
1
0
Fork 0
mirror of https://github.com/minetest/minetestmapper.git synced 2024-11-22 07:23:46 +01:00
Code Issues Packages Projects Releases Wiki Activity

Code style & comments

Browse Source
This commit is contained in:
sfan5 2016-11-18 23:57:09 +01:00
parent a41d231c34
commit 0167a72967
2 changed files with 75 additions and 106 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Image.cpp
View File

@ -20,7 +20,7 @@
#define SIZECHECK(x, y) do {} while(0)
#endif
// BGRA but with inverted alpha
// ARGB but with inverted alpha
static inline int color2int(Color c)
{

171
TileGenerator.cpp
View File

@ -28,7 +28,7 @@ static inline uint16_t readU16(const unsigned char *data)
}
// rounds n (away from 0) to a multiple of f while preserving the sign of n
static inline int round_multiple_nosign(int n, int f)
static int round_multiple_nosign(int n, int f)
{
int abs_n, sign;
abs_n = (n >= 0) ? n : -n;
@ -39,41 +39,30 @@ static inline int round_multiple_nosign(int n, int f)
return sign * (abs_n + f - (abs_n % f));
}
static inline int readBlockContent(const unsigned char *mapData, int version, int datapos)
static int readBlockContent(const unsigned char *mapData, int version, int datapos)
{
if (version >= 24) {
size_t index = datapos << 1;
return (mapData[index] << 8) | mapData[index + 1];
}
else if (version >= 20) {
if (mapData[datapos] <= 0x80) {
} else if (version >= 20) {
if (mapData[datapos] <= 0x80)
return mapData[datapos];
}
else {
else
return (int(mapData[datapos]) << 4) | (int(mapData[datapos + 0x2000]) >> 4);
}
}
else {
std::ostringstream oss;
oss << "Unsupported map version " << version;
throw std::runtime_error(oss.str());
}
}
static inline int colorSafeBounds(int color)
{
if (color > 255) {
return 255;
}
else if (color < 0) {
return 0;
}
else {
color = (color > 255) ? 255 : color;
color = (color < 0) ? 0 : color;
return color;
}
}
static inline Color mixColors(Color a, Color b)
static Color mixColors(Color a, Color b)
{
Color result;
double a1 = a.a / 255.0;
@ -83,6 +72,7 @@ static inline Color mixColors(Color a, Color b)
result.g = (int) (a1 * a.g + a2 * (1 - a1) * b.g);
result.b = (int) (a1 * a.b + a2 * (1 - a1) * b.b);
result.a = (int) (255 * (a1 + a2 * (1 - a1)));
return result;
}
@ -143,9 +133,8 @@ void TileGenerator::setPlayerColor(const std::string &playerColor)
void TileGenerator::setZoom(int zoom)
{
if (zoom < 1) {
if (zoom < 1)
throw std::runtime_error("Zoom level needs to be a number: 1 or higher");
}
m_zoom = zoom;
}
@ -157,18 +146,15 @@ void TileGenerator::setScales(uint flags)
Color TileGenerator::parseColor(const std::string &color)
{
Color parsed;
if (color.length() != 7) {
throw std::runtime_error("Color not 7 characters long");
}
if (color[0] != '#') {
throw std::runtime_error("Color does not begin with #");
}
long col = strtol(color.c_str() + 1, NULL, 16);
parsed.b = col % 256;
col = col / 256;
parsed.g = col % 256;
col = col / 256;
parsed.r = col % 256;
if (color.length() != 7)
throw std::runtime_error("Color needs to be 7 characters long");
if (color[0] != '#')
throw std::runtime_error("Color needs to begin with #");
unsigned long col = strtoul(color.c_str() + 1, NULL, 16);
parsed.b = col & 0xff;
parsed.g = (col >> 8) & 0xff;
parsed.r = (col >> 16) & 0xff;
parsed.a = 255;
return parsed;
}
@ -225,7 +211,7 @@ void TileGenerator::parseColorsFile(const std::string &fileName)
ifstream in;
in.open(fileName.c_str(), ifstream::in);
if (!in.is_open())
throw std::runtime_error("Specified colors file could not be found.");
throw std::runtime_error("Specified colors file could not be found");
parseColorsStream(in);
}
@ -321,26 +307,21 @@ void TileGenerator::loadBlocks()
for (std::vector<BlockPos>::iterator it = vec.begin(); it != vec.end(); ++it) {
BlockPos pos = *it;
// Check that it's in geometry (from --geometry option)
if (pos.x < m_geomX || pos.x >= m_geomX2 || pos.z < m_geomY || pos.z >= m_geomY2) {
if (pos.x < m_geomX || pos.x >= m_geomX2 || pos.z < m_geomY || pos.z >= m_geomY2)
continue;
}
// Check that it's between --miny and --maxy
if (pos.y * 16 < m_yMin || pos.y * 16 > m_yMax) {
// Check that it's between --min-y and --max-y
if (pos.y * 16 < m_yMin || pos.y * 16 > m_yMax)
continue;
}
// Adjust minimum and maximum positions to the nearest block
if (pos.x < m_xMin) {
if (pos.x < m_xMin)
m_xMin = pos.x;
}
if (pos.x > m_xMax) {
if (pos.x > m_xMax)
m_xMax = pos.x;
}
if (pos.z < m_zMin) {
if (pos.z < m_zMin)
m_zMin = pos.z;
}
if (pos.z > m_zMax) {
if (pos.z > m_zMax)
m_zMax = pos.z;
}
m_positions.push_back(std::pair<int, int>(pos.x, pos.z));
}
m_positions.sort();
@ -355,18 +336,19 @@ void TileGenerator::createImage()
m_xBorder = (m_scales & SCALE_LEFT) ? 40 : 0;
m_yBorder = (m_scales & SCALE_TOP) ? 40 : 0;
}
m_blockPixelAttributes.setWidth(m_mapWidth);
int image_width, image_height;
image_width = (m_mapWidth * m_zoom) + m_xBorder;
image_width += m_drawScale && (m_scales & SCALE_RIGHT) ? 40 : 0;
image_height = (m_mapHeight * m_zoom) + m_yBorder;
image_height += m_drawScale && (m_scales & SCALE_BOTTOM) ? 40 : 0;
if(image_width > 4096 || image_height > 4096)
std::cerr << "Warning: The width or height of the image to be created exceeds 4096 pixels!"
<< " (Dimensions: " << image_width << "x" << image_height << ")"
<< std::endl;
m_image = new Image(image_width, image_height);
m_blockPixelAttributes.setWidth(m_mapWidth);
m_image->drawFilledRect(0, 0, image_width, image_height, m_bgColor); // Background
}
@ -378,9 +360,8 @@ void TileGenerator::renderMap()
std::map<int16_t, BlockList> blocks;
m_db->getBlocksOnZ(blocks, zPos);
for (std::list<std::pair<int, int> >::const_iterator position = m_positions.begin(); position != m_positions.end(); ++position) {
if (position->second != zPos) {
if (position->second != zPos)
continue;
}
for (int i = 0; i < 16; ++i) {
m_readPixels[i] = 0;
@ -406,12 +387,10 @@ void TileGenerator::renderMap()
//uint8_t flags = data[1];
size_t dataOffset = 0;
if (version >= 22) {
if (version >= 22)
dataOffset = 4;
}
else {
else
dataOffset = 2;
}
ZlibDecompressor decompressor(data, length);
decompressor.setSeekPos(dataOffset);
@ -420,12 +399,10 @@ void TileGenerator::renderMap()
dataOffset = decompressor.seekPos();
// Skip unused data
if (version <= 21) {
if (version <= 21)
dataOffset += 2;
}
if (version == 23) {
if (version == 23)
dataOffset += 1;
}
if (version == 24) {
uint8_t ver = data[dataOffset++];
if (ver == 1) {
@ -460,15 +437,12 @@ void TileGenerator::renderMap()
uint16_t nameLen = readU16(data + dataOffset);
dataOffset += 2;
string name = string(reinterpret_cast<const char *>(data) + dataOffset, nameLen);
if (name == "air") {
if (name == "air")
m_blockAirId = nodeId;
}
else if (name == "ignore") {
else if (name == "ignore")
m_blockIgnoreId = nodeId;
}
else {
else
m_nameMap[nodeId] = name;
}
dataOffset += nameLen;
}
// Skip block if made of only air or ignore nodes
@ -488,30 +462,26 @@ void TileGenerator::renderMap()
bool allRead = true;
for (int i = 0; i < 16; ++i) {
if (m_readPixels[i] != 0xffff) {
if (m_readPixels[i] != 0xffff)
allRead = false;
}
}
if (allRead) {
if (allRead)
break;
}
}
bool allRead = true;
for (int i = 0; i < 16; ++i) {
if (m_readPixels[i] != 0xffff) {
if (m_readPixels[i] != 0xffff)
allRead = false;
}
}
if (!allRead) {
if (!allRead)
renderMapBlockBottom(blockStack.begin()->first);
}
}
if(m_shading)
renderShading(zPos);
}
}
inline void TileGenerator::renderMapBlock(const ustring &mapBlock, const BlockPos &pos, int version)
void TileGenerator::renderMapBlock(const ustring &mapBlock, const BlockPos &pos, int version)
{
int xBegin = (pos.x - m_xMin) * 16;
int zBegin = (m_zMax - pos.z) * 16;
@ -521,17 +491,15 @@ inline void TileGenerator::renderMapBlock(const ustring &mapBlock, const BlockPo
for (int z = 0; z < 16; ++z) {
int imageY = zBegin + 15 - z;
for (int x = 0; x < 16; ++x) {
if (m_readPixels[z] & (1 << x)) {
if (m_readPixels[z] & (1 << x))
continue;
}
int imageX = xBegin + x;
for (int y = maxY; y >= minY; --y) {
int position = x + (y << 4) + (z << 8);
int content = readBlockContent(mapData, version, position);
if (content == m_blockAirId || content == m_blockIgnoreId) {
if (content == m_blockAirId || content == m_blockIgnoreId)
continue;
}
NameMap::iterator blockName = m_nameMap.find(content);
if (blockName == m_nameMap.end()) {
std::cerr << "Skipping node with invalid ID." << std::endl;
@ -542,15 +510,18 @@ inline void TileGenerator::renderMapBlock(const ustring &mapBlock, const BlockPo
if (color != m_colorMap.end()) {
const Color c = color->second.to_color();
if (m_drawAlpha) {
// mix with previous color (unless first visible time)
if (m_color[z][x].a == 0)
m_color[z][x] = c;
else
m_color[z][x] = mixColors(m_color[z][x], c);
if(m_color[z][x].a == 0xFF) {
if(m_color[z][x].a == 0xff) {
// color is opaque at this depth (no point continuing)
setZoomed(imageX, imageY, m_color[z][x]);
m_readPixels[z] |= (1 << x);
m_blockPixelAttributes.attribute(15 - z, xBegin + x).thickness = m_thickness[z][x];
} else {
// near thickness value to thickness of current node
m_thickness[z][x] = (m_thickness[z][x] + color->second.t) / 2.0;
continue;
}
@ -572,19 +543,19 @@ inline void TileGenerator::renderMapBlock(const ustring &mapBlock, const BlockPo
}
}
inline void TileGenerator::renderMapBlockBottom(const BlockPos &pos)
void TileGenerator::renderMapBlockBottom(const BlockPos &pos)
{
int xBegin = (pos.x - m_xMin) * 16;
int zBegin = (m_zMax - pos.z) * 16;
for (int z = 0; z < 16; ++z) {
int imageY = zBegin + 15 - z;
for (int x = 0; x < 16; ++x) {
if (m_readPixels[z] & (1 << x)) {
if (m_readPixels[z] & (1 << x))
continue;
}
int imageX = xBegin + x;
if (m_drawAlpha) {
// set color in case it wasn't done in renderMapBlock()
setZoomed(imageX, imageY, m_color[z][x]);
m_readPixels[z] |= (1 << x);
m_blockPixelAttributes.attribute(15 - z, xBegin + x).thickness = m_thickness[z][x];
@ -593,28 +564,32 @@ inline void TileGenerator::renderMapBlockBottom(const BlockPos &pos)
}
}
inline void TileGenerator::renderShading(int zPos)
void TileGenerator::renderShading(int zPos)
{
int zBegin = (m_zMax - zPos) * 16;
for (int z = 0; z < 16; ++z) {
int imageY = zBegin + z;
if (imageY >= m_mapHeight) {
if (imageY >= m_mapHeight)
continue;
}
for (int x = 0; x < m_mapWidth; ++x) {
if (!m_blockPixelAttributes.attribute(z, x).valid_height() || !m_blockPixelAttributes.attribute(z, x - 1).valid_height() || !m_blockPixelAttributes.attribute(z - 1, x).valid_height()) {
if(
!m_blockPixelAttributes.attribute(z, x).valid_height() ||
!m_blockPixelAttributes.attribute(z, x - 1).valid_height() ||
!m_blockPixelAttributes.attribute(z - 1, x).valid_height()
)
continue;
}
// calculate shadow to apply
int y = m_blockPixelAttributes.attribute(z, x).height;
int y1 = m_blockPixelAttributes.attribute(z, x - 1).height;
int y2 = m_blockPixelAttributes.attribute(z - 1, x).height;
int d = ((y - y1) + (y - y2)) * 12;
if (d > 36) {
if (d > 36)
d = 36;
}
// more thickness -> less visible shadows: t=0 -> 100% visible, t=255 -> 0% visible
if (m_drawAlpha)
d = d * ((0xFF - m_blockPixelAttributes.attribute(z, x).thickness) / 255.0);
Color c = m_image->getPixel(getImageX(x), getImageY(imageY));
c.r = colorSafeBounds(c.r + d);
c.g = colorSafeBounds(c.g + d);
@ -627,17 +602,14 @@ inline void TileGenerator::renderShading(int zPos)
void TileGenerator::renderScale()
{
string scaleText;
if (m_scales & SCALE_TOP) {
m_image->drawText(24, 0, "X", m_scaleColor);
for (int i = (m_xMin / 4) * 4; i <= m_xMax; i += 4) {
stringstream buf;
buf << i * 16;
scaleText = buf.str();
int xPos = (m_xMin * -16 + i * 16)*m_zoom + m_xBorder;
m_image->drawText(xPos + 2, 0, scaleText, m_scaleColor);
m_image->drawText(xPos + 2, 0, buf.str(), m_scaleColor);
m_image->drawLine(xPos, 0, xPos, m_yBorder - 1, m_scaleColor);
}
}
@ -647,10 +619,9 @@ void TileGenerator::renderScale()
for (int i = (m_zMax / 4) * 4; i >= m_zMin; i -= 4) {
stringstream buf;
buf << i * 16;
scaleText = buf.str();
int yPos = (m_mapHeight - 1 - (i * 16 - m_zMin * 16))*m_zoom + m_yBorder;
m_image->drawText(2, yPos, scaleText, m_scaleColor);
m_image->drawText(2, yPos, buf.str(), m_scaleColor);
m_image->drawLine(0, yPos, m_xBorder - 1, yPos, m_scaleColor);
}
}
@ -659,11 +630,10 @@ void TileGenerator::renderScale()
for (int i = (m_xMin / 4) * 4; i <= m_xMax; i += 4) {
stringstream buf;
buf << i * 16;
scaleText = buf.str();
int xPos = (m_xMin * -16 + i * 16)*m_zoom + m_xBorder;
int yPos = m_yBorder + m_mapHeight*m_zoom;
m_image->drawText(xPos + 2, yPos, scaleText, m_scaleColor);
m_image->drawText(xPos + 2, yPos, buf.str(), m_scaleColor);
m_image->drawLine(xPos, yPos, xPos, yPos + 39, m_scaleColor);
}
}
@ -672,11 +642,10 @@ void TileGenerator::renderScale()
for (int i = (m_zMax / 4) * 4; i >= m_zMin; i -= 4) {
stringstream buf;
buf << i * 16;
scaleText = buf.str();
int xPos = m_xBorder + m_mapWidth*m_zoom;
int yPos = (m_mapHeight - 1 - (i * 16 - m_zMin * 16))*m_zoom + m_yBorder;
m_image->drawText(xPos + 2, yPos, scaleText, m_scaleColor);
m_image->drawText(xPos + 2, yPos, buf.str(), m_scaleColor);
m_image->drawLine(xPos, yPos, xPos + 39, yPos, m_scaleColor);
}
}
@ -704,9 +673,8 @@ void TileGenerator::renderPlayers(const std::string &inputPath)
inline std::list<int> TileGenerator::getZValueList() const
{
std::list<int> zlist;
for (std::list<std::pair<int, int> >::const_iterator position = m_positions.begin(); position != m_positions.end(); ++position) {
for (std::list<std::pair<int, int> >::const_iterator position = m_positions.begin(); position != m_positions.end(); ++position)
zlist.push_back(position->second);
}
zlist.sort();
zlist.unique();
zlist.reverse();
@ -740,6 +708,7 @@ inline int TileGenerator::getImageY(int val) const
return (m_zoom*val) + m_yBorder;
}
inline void TileGenerator::setZoomed(int x, int y, Color color) {
inline void TileGenerator::setZoomed(int x, int y, Color color)
{
m_image->drawFilledRect(getImageX(x), getImageY(y), m_zoom, m_zoom, color);
}