diff options
| author | rubidium <rubidium@openttd.org> | 2007-08-31 17:15:46 +0000 |
|---|---|---|
| committer | rubidium <rubidium@openttd.org> | 2007-08-31 17:15:46 +0000 |
| commit | 7f21de5ea92bc27492330bb6b06528310123653d (patch) | |
| tree | b2f6f8944befade6300c515c9c9ab0260142d919 | |
| parent | 2c8e50f20c84f65b19bc1d983e2715f827ee19d8 (diff) | |
| download | openttd-7f21de5ea92bc27492330bb6b06528310123653d.tar.xz | |
(svn r11018) -Fix [FS#1169]: Disallow buying/selling shares in your own company or a bankrupted/non-existant company.
| -rw-r--r-- | src/economy.cpp | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/src/economy.cpp b/src/economy.cpp index f120feb55..c20a7aca6 100644 --- a/src/economy.cpp +++ b/src/economy.cpp @@ -1802,12 +1802,17 @@ CommandCost CmdBuyShareInCompany(TileIndex tile, uint32 flags, uint32 p1, uint32 Player *p; CommandCost cost; - /* Check if buying shares is allowed (protection against modified clients */ - if (!IsValidPlayer((PlayerID)p1) || !_patches.allow_shares) return CMD_ERROR; + /* Check if buying shares is allowed (protection against modified clients) */ + /* Cannot buy own shares */ + if (!IsValidPlayer((PlayerID)p1) || !_patches.allow_shares || _current_player == (PlayerID)p1) return CMD_ERROR; - SET_EXPENSES_TYPE(EXPENSES_OTHER); p = GetPlayer((PlayerID)p1); + /* Cannot buy shares of non-existent nor bankrupted company */ + if (!p->is_active) return CMD_ERROR; + + SET_EXPENSES_TYPE(EXPENSES_OTHER); + /* Protect new companies from hostile takeovers */ if (_cur_year - p->inaugurated_year < 6) return_cmd_error(STR_7080_PROTECTED); @@ -1848,12 +1853,17 @@ CommandCost CmdSellShareInCompany(TileIndex tile, uint32 flags, uint32 p1, uint3 Player *p; Money cost; - /* Check if buying shares is allowed (protection against modified clients */ - if (!IsValidPlayer((PlayerID)p1) || !_patches.allow_shares) return CMD_ERROR; + /* Check if selling shares is allowed (protection against modified clients) */ + /* Cannot sell own shares */ + if (!IsValidPlayer((PlayerID)p1) || !_patches.allow_shares || _current_player == (PlayerID)p1) return CMD_ERROR; - SET_EXPENSES_TYPE(EXPENSES_OTHER); p = GetPlayer((PlayerID)p1); + /* Cannot sell shares of non-existent nor bankrupted company */ + if (!p->is_active) return CMD_ERROR; + + SET_EXPENSES_TYPE(EXPENSES_OTHER); + /* Those lines are here for network-protection (clients can be slow) */ if (GetAmountOwnedBy(p, _current_player) == 0) return CommandCost(); |