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authorterkhen <terkhen@openttd.org>2010-09-18 20:33:04 +0000
committerterkhen <terkhen@openttd.org>2010-09-18 20:33:04 +0000
commit3607c33b4f884243e254d5101f7c91bbd1895aa6 (patch)
tree23ab28894af1942133b6e2e9e84fb620cd94cfd5 /src
parent285d9054881c4a7bc648db4453e3e725adaf0973 (diff)
downloadopenttd-3607c33b4f884243e254d5101f7c91bbd1895aa6.tar.xz
(svn r20825) -Codechange: Replace a few magic numbers by constants.
Diffstat (limited to 'src')
-rw-r--r--src/tree_cmd.cpp17
1 files changed, 9 insertions, 8 deletions
diff --git a/src/tree_cmd.cpp b/src/tree_cmd.cpp
index 6dad8ecae..bc94b1fed 100644
--- a/src/tree_cmd.cpp
+++ b/src/tree_cmd.cpp
@@ -54,6 +54,9 @@ enum ExtraTreePlacement {
/** Determines when to consider building more trees. */
byte _trees_tick_ctr;
+static const uint16 DEFAULT_TREE_STEPS = 1000; ///< Default number of attempts for placing trees.
+static const uint16 DEFAULT_RAINFOREST_TREE_STEPS = 15000; ///< Default number of attempts for placing extra trees at rainforest in tropic.
+
/**
* Tests if a tile can be converted to MP_TREES
* This is true for clear ground without farms or rocks.
@@ -188,7 +191,7 @@ static void DoPlaceMoreTrees(TileIndex tile)
{
uint i;
- for (i = 0; i < 1000; i++) {
+ for (i = 0; i < DEFAULT_TREE_STEPS; i++) {
uint32 r = Random();
int x = GB(r, 0, 5) - 16;
int y = GB(r, 8, 5) - 16;
@@ -225,9 +228,7 @@ static void PlaceMoreTrees()
*/
static void PlaceTreeAtSameHeight(TileIndex tile, uint height)
{
- uint i;
-
- for (i = 0; i < 1000; i++) {
+ for (uint i = 0; i < DEFAULT_TREE_STEPS; i++) {
uint32 r = Random();
int x = GB(r, 0, 5) - 16;
int y = GB(r, 8, 5) - 16;
@@ -258,7 +259,7 @@ void PlaceTreesRandomly()
{
uint i, j, ht;
- i = ScaleByMapSize(1000);
+ i = ScaleByMapSize(DEFAULT_TREE_STEPS);
do {
uint32 r = Random();
TileIndex tile = RandomTileSeed(r);
@@ -289,7 +290,7 @@ void PlaceTreesRandomly()
/* place extra trees at rainforest area */
if (_settings_game.game_creation.landscape == LT_TROPIC) {
- i = ScaleByMapSize(15000);
+ i = ScaleByMapSize(DEFAULT_RAINFOREST_TREE_STEPS);
do {
uint32 r = Random();
@@ -324,8 +325,8 @@ void GenerateTrees()
default: NOT_REACHED();
}
- total = ScaleByMapSize(1000);
- if (_settings_game.game_creation.landscape == LT_TROPIC) total += ScaleByMapSize(15000);
+ total = ScaleByMapSize(DEFAULT_TREE_STEPS);
+ if (_settings_game.game_creation.landscape == LT_TROPIC) total += ScaleByMapSize(DEFAULT_RAINFOREST_TREE_STEPS);
total *= i;
SetGeneratingWorldProgress(GWP_TREE, total);