Prototype to test health function in a particle system of simple Things (Pond Life). Two hundred Things are birthed, they swim, they lose health incrementally(hunger) and they die if their health runs out. Things became more transparent as health runs down. Movement uses Perlin Noise to make it more natural. When a Thing's health falls below 50%, it heads toward the bottom edge. If it makes it in time, health is replenished. Nov18.