Fix: Prevents crash when no industries are present

(cherry picked from commit 5ea55f3948)

src/industry_gui.cpp

@@ -499,8 +499,12 @@ public:
 					/* We've chosen many random industries but no industries have been specified */
 					SetDParam(0, STR_FUND_INDUSTRY_BUILD_NEW_INDUSTRY);
 				} else {
-					const IndustrySpec *indsp = GetIndustrySpec(this->index[this->selected_index]);
-					SetDParam(0, (_settings_game.construction.raw_industry_construction == 2 && indsp->IsRawIndustry()) ? STR_FUND_INDUSTRY_PROSPECT_NEW_INDUSTRY : STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY);
+					if (count > 0) {
+						const IndustrySpec *indsp = GetIndustrySpec(this->index[this->selected_index]);
+						SetDParam(0, (_settings_game.construction.raw_industry_construction == 2 && indsp->IsRawIndustry()) ? STR_FUND_INDUSTRY_PROSPECT_NEW_INDUSTRY : STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY);
+					} else {
+						SetDParam(0, STR_FUND_INDUSTRY_FUND_NEW_INDUSTRY);
+					}
 				}
 				break;
 		}
@@ -732,6 +736,7 @@ public:
 	void OnHundredthTick() override
 	{
 		if (_game_mode == GM_EDITOR) return;
+		if (this->count == 0) return;
 		const IndustrySpec *indsp = GetIndustrySpec(this->selected_type);
 
 		if (indsp->enabled) {