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-rw-r--r--src/newgrf_industries.cpp3
-rw-r--r--src/newgrf_industrytiles.cpp2
2 files changed, 2 insertions, 3 deletions
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp
index 9e40f2f28..da74f58d3 100644
--- a/src/newgrf_industries.cpp
+++ b/src/newgrf_industries.cpp
@@ -523,7 +523,7 @@ bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspe
/* Unlike the "normal" cases, not having a valid result means we allow
* the building of the industry, as that's how it's done in TTDP. */
- if (group == NULL || group->type != SGT_CALLBACK) return true;
+ if (group == NULL || group->type != SGT_CALLBACK || group->g.callback.result == 0x400) return true;
/* Copy some parameters from the registers to the error message text ref. stack */
SwitchToErrorRefStack();
@@ -531,7 +531,6 @@ bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspe
SwitchToNormalRefStack();
switch (group->g.callback.result) {
- case 0x400: return true;
case 0x401: _error_message = STR_0239_SITE_UNSUITABLE; break;
case 0x402: _error_message = STR_0317_CAN_ONLY_BE_BUILT_IN_RAINFOREST; break;
case 0x403: _error_message = STR_0318_CAN_ONLY_BE_BUILT_IN_DESERT; break;
diff --git a/src/newgrf_industrytiles.cpp b/src/newgrf_industrytiles.cpp
index 50bdcba4b..bab9977f7 100644
--- a/src/newgrf_industrytiles.cpp
+++ b/src/newgrf_industrytiles.cpp
@@ -284,6 +284,7 @@ bool PerformIndustryTileSlopeCheck(TileIndex ind_base_tile, TileIndex ind_tile,
if (its->grf_prop.grffile->grf_version < 7) {
return callback_res != 0;
}
+ if (callback_res == 0x400) return true;
/* Copy some parameters from the registers to the error message text ref. stack */
SwitchToErrorRefStack();
@@ -291,7 +292,6 @@ bool PerformIndustryTileSlopeCheck(TileIndex ind_base_tile, TileIndex ind_tile,
SwitchToNormalRefStack();
switch (callback_res) {
- case 0x400: return true;
case 0x401: _error_message = STR_0239_SITE_UNSUITABLE; return false;
case 0x402: _error_message = STR_0317_CAN_ONLY_BE_BUILT_IN_RAINFOREST; return false;
case 0x403: _error_message = STR_0318_CAN_ONLY_BE_BUILT_IN_DESERT; return false;