Feature: Make maximum length of town bridges depend on population.

This commit is contained in:
Didac Perez Parera 2020-12-26 16:10:21 -08:00 committed by Patric Stout
parent c3faec4e9a
commit 64eddaeb49
1 changed files with 8 additions and 3 deletions

View File

@ -1159,10 +1159,15 @@ static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDi
const int delta = TileOffsByDiagDir(bridge_dir);
/* To prevent really small towns from building disproportionately
* long bridges, make the max a function of its population. */
int base_bridge_length = 4;
int max_bridge_length = t->cache.population / 1000 + base_bridge_length;
if (slope == SLOPE_FLAT) {
/* Bridges starting on flat tiles are only allowed when crossing rivers, rails or one-way roads. */
do {
if (bridge_length++ >= 4) {
if (bridge_length++ >= base_bridge_length) {
/* Allow to cross rivers, not big lakes, nor large amounts of rails or one-way roads. */
return false;
}
@ -1170,8 +1175,8 @@ static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDi
} while (IsValidTile(bridge_tile) && ((IsWaterTile(bridge_tile) && !IsSea(bridge_tile)) || IsPlainRailTile(bridge_tile) || (IsNormalRoadTile(bridge_tile) && GetDisallowedRoadDirections(bridge_tile) != DRD_NONE)));
} else {
do {
if (bridge_length++ >= 11) {
/* Max 11 tile long bridges */
if (bridge_length++ >= max_bridge_length) {
/* Ensure the bridge is not longer than the max allowed length. */
return false;
}
bridge_tile += delta;