Function GenerateTrees

src/tree_cmd.cpp:469–493

* Place new trees. * * This function takes care of the selected tree placer algorithm and * place randomly the trees for a new game. */

 * place randomly the trees for a new game.
 */
void GenerateTrees()
{
	uint i, total;

	if (_settings_game.game_creation.tree_placer == TP_NONE) return;

	switch (_settings_game.game_creation.tree_placer) {
		case TP_ORIGINAL: i = _settings_game.game_creation.landscape == LandscapeType::Arctic ? 15 : 6; break;
		case TP_IMPROVED: i = _settings_game.game_creation.landscape == LandscapeType::Arctic ?  4 : 2; break;
		default: NOT_REACHED();
	}

	total = Map::ScaleBySize(DEFAULT_TREE_STEPS);
	if (_settings_game.game_creation.landscape == LandscapeType::Tropic) total += Map::ScaleBySize(DEFAULT_RAINFOREST_TREE_STEPS);
	total *= i;
	uint num_groups = (_settings_game.game_creation.landscape != LandscapeType::Toyland) ? Map::ScaleBySize(GB(Random(), 0, 5) + 25) : 0;
	total += num_groups * DEFAULT_TREE_STEPS;
	SetGeneratingWorldProgress(GWP_TREE, total);

	if (num_groups != 0) PlaceTreeGroups(num_groups);

	for (; i != 0; i--) {
		PlaceTreesRandomly();
	}
}

/**
 * Plant a tree.