method renderTriangle

Source

@override
void renderTriangle(
    RenderState renderState,
    num x1, num y1, num x2, num y2, num x3, num y3, int color) {

  var context = _renderingContext;
  var matrix = renderState.globalMatrix;
  var alpha = renderState.globalAlpha;
  var blendMode = renderState.globalBlendMode;

  if (_activeAlpha != alpha) {
    _activeAlpha = alpha;
    context.globalAlpha = alpha;
  }

  if (_activeBlendMode != blendMode) {
    _activeBlendMode = blendMode;
    context.globalCompositeOperation = blendMode.compositeOperation;
  }

  context.setTransform(matrix.a, matrix.b, matrix.c, matrix.d, matrix.tx, matrix.ty);

  context.beginPath();
  context.moveTo(x1, y1);
  context.lineTo(x2, y2);
  context.lineTo(x3, y3);
  context.closePath();
  context.fillStyle = color2rgba(color);
  context.fill();
}