Esempio n. 1
0
// Request
static int inside(lua_State *L) 
{
  int n = lua_gettop(L);  // Number of arguments
  if (n != 2)
    return luaL_error(L, "Got %d arguments expected 2 (self, point)", n);
  Circle c = Circle_pull(L, 1);
  Vector2 v = Vector2_pull(L, 2);
  
  lua_pushboolean(L, c.inside(v));
  return 1; 
}
Esempio n. 2
0
bool CueTable::insertPocket(Polygon2& shape, vec2 holePos){
	const Circle circle(holePos, 1.0f);
	auto edges = &shape.getEdges();
	int countEdges = 0;

	for(uint i = 0; i < edges->size(); i++){
		Edge2 edge = edges->at(i);
		if(circle.inside(edge[0]) ^ circle.inside(edge[1])){
			countEdges++;
		}
	}

	if(countEdges > 2){
		return false;
	}else if (countEdges == 1){
		return false;
	}

	for( auto it = edges->begin(); it != edges->end(); ){
		Edge2 edge = (*it);
		if(circle.inside(edge[0]) && circle.inside(edge[1])){
			it = edges->erase( it );
		}else{
			it++;
		}
	}

	for( auto it = edges->begin(); it != edges->end(); ){
		Edge2 edge = (*it);

		vec2 alpha;
		IntersectionType intType = circleIntersection(edge, circle, alpha.x, alpha.y);

		vec2 edge0 = edge[0];
		vec2 edge1 = edge[1];
		vec2 hit0 = lerp(edge0,edge1,alpha[0]);
		vec2 hit1 = lerp(edge0,edge1,alpha[1]);

		switch (intType) {
			case IMPALE: {
				it = edges->erase( it );
				it = edges->insert(it, Edge2(edge0, hit0));

				/*vector<Edge2> pocketEdges = generatePocketEdges(circle, Edge2(edge0, hit0), Edge2(hit1, edge1), 10);
				for( auto& e : pocketEdges )
					it = edges->insert( it + 1, e );*/

				it = edges->insert(it + 1, Edge2(hit1, edge1));
				it--;
				break;
			}
			case POKE: {
				it->at(1) = hit0;
				/*vector<Edge2> pocketEdges = generatePocketEdges(circle, *it, *(it+1), 10);
				for( auto& e : pocketEdges )
					it = edges->insert( it + 1, e );*/

				break;
			}
			case EXITWOUND: {
				it->at(0) = hit1;
				break;
			}
			case COMPLETELYINSIDE:
			case FALLSHORT:
			case PAST:
			case NONE: break;
			case INVALID:
			default: assert(0);
		}

		it++;
	}

	return true;
}