Function getMoisture

examples/island/Island.cpp:107–116

/////////////////////////////////////////////////////// Get the terrain moisture at the given coordinates. ///////////////////////////////////////////////////////

///
////////////////////////////////////////////////////////////
float getMoisture(sf::Vector2u position)
{
    const sf::Vector2f normalized = sf::Vector2f(position).componentWiseDiv(sf::Vector2f(resolution)) -
                                    sf::Vector2f(0.5f, 0.5f);
    const sf::Vector2f transformed = normalized * 4.f + sf::Vector2f(0.5f, 0.5f);

    const float moisture = stb_perlin_noise3(transformed.x, transformed.y, 0, 0, 0, 0);

    return (moisture + 1.f) / 2.f;
}


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