void Font::drawText(Bitmap *dest, Point2i pos, const std::string &text) const {
int initial = pos.x;
for (size_t i=0; i<text.length(); i++) {
char character = text[i];
if (character == '\r')
continue;
if (character == '\n') {
pos.x = initial;
pos.y += (int) (getMaxVerticalBearing()*4.0/3.0);
continue;
}
const Font::Glyph &glyph = getGlyph(character);
Point2i targetOffset = pos + Vector2i(
glyph.horizontalBearing,
getMaxVerticalBearing() - glyph.verticalBearing - 1
);
Point2i sourceOffset(
(int) (glyph.tx.x * m_bitmap->getWidth()),
(int) (glyph.tx.y * m_bitmap->getHeight()));
dest->accumulate(m_bitmap.get(), sourceOffset, targetOffset, glyph.size);
pos.x += glyph.horizontalAdvance;
if (i+1 < text.length())
pos.x += getKerning(character, text[i+1]);
}
}
std::vector<SpriteFramePtr> SpriteFrame::loadSpriteFrames(const std::string& filename, bool mipmaps)
{
std::vector<SpriteFramePtr> frames;
std::vector<uint8_t> data;
if (!sharedEngine->getFileSystem()->loadFile(filename, data))
{
return frames;
}
rapidjson::MemoryStream is(reinterpret_cast<char*>(data.data()), data.size());
rapidjson::Document document;
document.ParseStream<0>(is);
if (document.HasParseError())
{
log("Failed to parse %s", filename.c_str());
return frames;
}
const rapidjson::Value& metaObject = document["meta"];
const rapidjson::Value& sizeObject = metaObject["size"];
Size2 textureSize(static_cast<float>(sizeObject["w"].GetInt()),
static_cast<float>(sizeObject["h"].GetInt()));
graphics::TexturePtr texture = sharedEngine->getCache()->getTexture(metaObject["image"].GetString(), false, mipmaps);
const rapidjson::Value& framesArray = document["frames"];
frames.reserve(framesArray.Size());
for (rapidjson::SizeType index = 0; index < framesArray.Size(); ++index)
{
const rapidjson::Value& frameObject = framesArray[index];
const rapidjson::Value& rectangleObject = frameObject["frame"];
Rectangle rectangle(static_cast<float>(rectangleObject["x"].GetInt()),
static_cast<float>(rectangleObject["y"].GetInt()),
static_cast<float>(rectangleObject["w"].GetInt()),
static_cast<float>(rectangleObject["h"].GetInt()));
bool rotated = frameObject["rotated"].GetBool();
const rapidjson::Value& sourceSizeObject = frameObject["sourceSize"];
Size2 sourceSize(static_cast<float>(sourceSizeObject["w"].GetInt()),
static_cast<float>(sourceSizeObject["h"].GetInt()));
const rapidjson::Value& spriteSourceSizeObject = frameObject["spriteSourceSize"];
Vector2 sourceOffset(static_cast<float>(spriteSourceSizeObject["x"].GetInt()),
static_cast<float>(spriteSourceSizeObject["y"].GetInt()));
const rapidjson::Value& pivotObject = frameObject["pivot"];
Vector2 pivot(pivotObject["x"].GetFloat(),
pivotObject["y"].GetFloat());
frames.push_back(std::make_shared<SpriteFrame>(rectangle, texture, rotated, sourceSize, sourceOffset, pivot));
}
return frames;
}
