Function drawVirtualButton

src/mobile/index.ts:243–256

(btn: VirtualButton)

}

export function drawVirtualButton(btn: VirtualButton): void {
  const bgColor: Color = btn.active
    ? { r: 255, g: 255, b: 255, a: 120 }
    : { r: 255, g: 255, b: 255, a: 60 };

  drawCircle(btn.x, btn.y, btn.radius, bgColor);

  if (btn.label) {
    const fontSize = btn.radius * 0.8;
    const textWidth = measureText(btn.label, fontSize);
    const labelColor: Color = { r: 255, g: 255, b: 255, a: 200 };
    drawText(btn.label, btn.x - textWidth / 2, btn.y - fontSize / 2, fontSize, labelColor);
  }
}

// ============================================================
// Convenience: unified movement input