Hello, everyone!
I want to flood fill rectangular trapezoid with texture from image. But I not found there is way to create not square texture, except using OpenGL.
For example, we have a polygon {{0,0},{0,10},{12,12},{12,0}} and image {width = 5, height = 5}. How to flood fill polygon with image?
I need it to create road like this
void HelloWorld::generateHill()
{
auto origin = Director::getInstance()->getVisibleOrigin();
Point vertex[4];
for (ssize_t i = 1; i < _hills.size(); ++i)
{
auto a_vertex = _hills.at(i - 1);
auto b_vertex = _hills.at(i);
int count_vertex = floorf((b_vertex.x - a_vertex.x) / MAX_SEGMENT_WIDTH);
auto dx = (b_vertex.x - a_vertex.x) / count_vertex;
auto amplitude = (a_vertex.y - b_vertex.y) / 2;
auto period = M_PI / count_vertex;
auto y_middle = (a_vertex.y + b_vertex.y) / 2;
vertex[1] = a_vertex;
for (int j = 0; j < count_vertex; ++j)
{
vertex[0] = Point(a_vertex.x + dx * j, origin.y);
vertex[2] = Point(a_vertex.x + dx * (j + 1), y_middle + amplitude * cosf(period*(j + 1)));
vertex[3] = Point(a_vertex.x + dx * (j + 1), origin.y);
auto node = Node::create();
auto body = PhysicsBody::createEdgePolygon(vertex, 4);
body->setDynamic(false);
node->setPhysicsBody(body);
this->addChild(node);
vertex[1] = vertex[2];
}
}
}
and I want to flood fill node with some texture.