mirror
/
OpenTTD
mirror of https://github.com/OpenTTD/OpenTTD
1
0
Fork 0
Code Issues

Change: Improved tree placement at worldgen 

Change: reduce tree divisor factor

Codechange: rename solitary tree divisor constant

Co-authored-by: Tyler Trahan <tyler@tylertrahan.com>

Change: more random tree grouping
pull/12719/head
Sylvain Devidal 2018-07-20 09:49:47 +02:00 committed by Susan
parent 58e4643196
commit d0a550da5b
1 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/tree_cmd.cpp
View File

@ -57,6 +57,7 @@ uint8_t _trees_tick_ctr;
static const uint16_t DEFAULT_TREE_STEPS = 1000; ///< Default number of attempts for placing trees.
static const uint16_t DEFAULT_RAINFOREST_TREE_STEPS = 15000; ///< Default number of attempts for placing extra trees at rainforest in tropic.
static const uint16_t EDITOR_TREE_DIV = 5; ///< Game editor tree generation divisor factor.
static const uint16_t IMPROVED_TREES_SOLITARY_DIV = 9; ///< Improved generation divisor factor for solitary trees.
/**
* Tests if a tile can be converted to MP_TREES
@ -185,6 +186,8 @@ static void PlaceTree(TileIndex tile, uint32_t r)
*/
static void PlaceTreeGroups(uint num_groups)
{
const uint MAX_DISTANCE_FROM_CENTER = 13;
do {
TileIndex center_tile = RandomTile();
@ -193,11 +196,19 @@ static void PlaceTreeGroups(uint num_groups)
int x = GB(r, 0, 5) - 16;
int y = GB(r, 8, 5) - 16;
uint dist = abs(x) + abs(y);
uint max_dist = MAX_DISTANCE_FROM_CENTER;
if (_settings_newgame.game_creation.tree_placer == TP_IMPROVED) {
max_dist = GB(r, 16, 4);
}
if (dist > max_dist) continue;
TileIndex cur_tile = TileAddWrap(center_tile, x, y);
IncreaseGeneratingWorldProgress(GWP_TREE);
if (cur_tile != INVALID_TILE && dist <= 13 && CanPlantTreesOnTile(cur_tile, true)) {
if (cur_tile != INVALID_TILE && CanPlantTreesOnTile(cur_tile, true)) {
PlaceTree(cur_tile, r);
}
}
@ -249,6 +260,8 @@ void PlaceTreesRandomly()
i = Map::ScaleBySize(DEFAULT_TREE_STEPS);
if (_game_mode == GM_EDITOR) i /= EDITOR_TREE_DIV;
/* Place a limited amount of solitary trees when using improved tree placement. */
if (_settings_game.game_creation.tree_placer == TP_IMPROVED) i /= IMPROVED_TREES_SOLITARY_DIV;
do {
uint32_t r = Random();
TileIndex tile = RandomTileSeed(r);