#pragma strict function Start () { light.intensity = 0; renderer.material.color=Color(0.5,0.5,0.5); } function OnMouseDown () { if(light.intensity == 0){ light.intensity = 1; renderer.material.color=Color(1,1,1); }else{ light.intensity = 0; renderer.material.color=Color(0.5,0.5,0.5); } }