Function handleMouseMove

components/plasma.tsx:167–175

(e: MouseEvent)

    const uDirectionUniform = program.uniforms.uDirection as { value: number };

    const handleMouseMove = (e: MouseEvent) => {
      if (!mouseInteractive) return;
      const rect = container.getBoundingClientRect();
      mousePos.current.x = e.clientX - rect.left;
      mousePos.current.y = e.clientY - rect.top;
      const mouseUniform = program.uniforms.uMouse.value as Float32Array;
      mouseUniform[0] = mousePos.current.x;
      mouseUniform[1] = mousePos.current.y;
    };

    if (mouseInteractive) {
      container.addEventListener("mousemove", handleMouseMove);