void TextEngine::renderText(float x, float y, float scaleX, float scaleY, bool baseline, const char* text)
{
ssize_t units;
uint32_t code;
// Configure buffers
C3D_BufInfo* bufInfo = C3D_GetBufInfo();
BufInfo_Init(bufInfo);
BufInfo_Add(bufInfo, textVtxArray, sizeof(textVertex_s), 2, 0x10);
const uint8_t* p = (const uint8_t*)text;
float firstX = x;
u32 flags = GLYPH_POS_CALC_VTXCOORD | (baseline ? GLYPH_POS_AT_BASELINE : 0);
int lastSheet = -1;
do
{
if (!*p) break;
units = decode_utf8(&code, p);
if (units == -1)
break;
p += units;
if (code == '\n')
{
x = firstX;
y += scaleY*fontGetInfo()->lineFeed;
}
else if (code > 0)
{
int glyphIdx = fontGlyphIndexFromCodePoint(code);
fontGlyphPos_s data;
fontCalcGlyphPos(&data, glyphIdx, flags, scaleX, scaleY);
// Bind the correct texture sheet
if (data.sheetIndex != lastSheet)
{
lastSheet = data.sheetIndex;
C3D_TexBind(0, &glyphSheets[lastSheet]);
}
int arrayIndex = textVtxArrayPos;
if ((arrayIndex+4) >= TEXT_VTX_ARRAY_COUNT)
break; // We can't render more characters
// Add the vertices to the array
addTextVertex(x+data.vtxcoord.left, y+data.vtxcoord.bottom, data.texcoord.left, data.texcoord.bottom);
addTextVertex(x+data.vtxcoord.right, y+data.vtxcoord.bottom, data.texcoord.right, data.texcoord.bottom);
addTextVertex(x+data.vtxcoord.left, y+data.vtxcoord.top, data.texcoord.left, data.texcoord.top);
addTextVertex(x+data.vtxcoord.right, y+data.vtxcoord.top, data.texcoord.right, data.texcoord.top);
// Draw the glyph
C3D_DrawArrays(GPU_TRIANGLE_STRIP, arrayIndex, 4);
x += data.xAdvance;
}
} while (code > 0);
}
Instructions::Instructions(const std::string& simpleInstructions)
{
if (!simpleInstructions.empty())
{
int lines = 1;
std::string wrapped = StringUtils::wrap(simpleInstructions, FONT_SIZE_12, 300);
for (auto i = wrapped.begin(); i != wrapped.end(); i++)
{
if (*i == '\n')
{
lines++;
}
}
int height = fontGetInfo()->lineFeed * FONT_SIZE_12 * lines + 20;
addBox(true, 40, 220 - height, 320, height, COLOR_GREY);
addBox(true, 44, 224 - height, 312, height - 8, COLOR_DARKGREY, wrapped, COLOR_WHITE);
}
}