/** Clears the text. */
public void clear() {
// Clear mesh
builder.reset();
// Reset text position
x = 0;
y = 0;
}
/**
* Adds some text.
*
* @param text Text to add
*/
public void append(String text) {
// Note current buffer position
final int start = builder.getVertexCount();
// Build glyphs
for (char ch : text.toCharArray()) {
// Handle carriage returns
if (ch == '\n') {
newline();
continue;
}
// Determine width of this character
final float w = font.getWidth(ch);
// Start newline if wrapped
if (x + w > width) {
newline();
}
// Build quad for glyph
final Quad quad =
new Quad(new Point(x * scale, y * scale, 0), w * scale, font.getHeight() * scale, false);
quad.setColour(col);
quad.setTextureCoords(font.getTextureCoords(ch));
// Add glyph
builder.addQuad(quad.getVertices());
// Move to next glyph location
x += w;
}
// Update mesh
builder.build(start, builder.getVertexCount());
builder.flag = true;
}
/**
* Constructor.
*
* @param font Font properties
*/
public TextBuilder(TextureFont font) {
Check.notNull(font);
this.font = font;
builder = new MeshBuilder(MeshLayout.create(Primitive.TRIANGLES, "+VC0", false));
builder.allocate(256); // TODO
}