(svn r16559) -Codechange: introduce Company::IsValidAiID() and Company::IsValidHumanID(), don't use IsHumanCompany() where possible

src/ai/ai.hpp

@@ -54,7 +54,7 @@ public:
 	/**
 	 * Stop a company to be controlled by an AI.
 	 * @param company The company from which the AI needs to detach.
-	 * @pre !IsHumanCompany(company).
+	 * @pre Company::IsValidAiID(company)
 	 */
 	static void Stop(CompanyID company);
 

src/ai/ai_core.cpp

@@ -64,7 +64,7 @@
 
 	const Company *c;
 	FOR_ALL_COMPANIES(c) {
-		if (!IsHumanCompany(c->index)) {
+		if (c->is_ai) {
 			_current_company = c->index;
 			c->ai_instance->GameLoop();
 		}
@@ -74,8 +74,7 @@
 	 * Effectively collecting garbage once every two months per AI. */
 	if ((AI::frame_counter & 255) == 0) {
 		CompanyID cid = (CompanyID)GB(AI::frame_counter, 8, 4);
-		Company *com = Company::GetIfValid(cid);
-		if (com != NULL && !IsHumanCompany(cid)) com->ai_instance->CollectGarbage();
+		if (Company::IsValidAiID(cid)) Company::Get(cid)->ai_instance->CollectGarbage();
 	}
 
 	_current_company = OWNER_NONE;
@@ -109,7 +108,7 @@
 
 	const Company *c;
 	FOR_ALL_COMPANIES(c) {
-		if (!IsHumanCompany(c->index)) AI::Stop(c->index);
+		if (c->is_ai) AI::Stop(c->index);
 	}
 }
 
@@ -179,7 +178,7 @@
 	}
 
 	/* Only AIs can have an event-queue */
-	if (!Company::IsValidID(company) || IsHumanCompany(company)) {
+	if (!Company::IsValidAiID(company)) {
 		event->Release();
 		return;
 	}

src/ai/ai_gui.cpp

@@ -642,8 +642,7 @@ struct AIDebugWindow : public Window {
 	{
 		/* Disable the companies who are not active or not an AI */
 		for (CompanyID i = COMPANY_FIRST; i < MAX_COMPANIES; i++) {
-			Company *c = Company::GetIfValid(i);
-			this->SetWidgetDisabledState(i + AID_WIDGET_COMPANY_BUTTON_START, c == NULL || !c->is_ai);
+			this->SetWidgetDisabledState(i + AID_WIDGET_COMPANY_BUTTON_START, !Company::IsValidAiID(i));
 		}
 		this->DisableWidget(AID_WIDGET_RELOAD_TOGGLE);
 
@@ -661,7 +660,7 @@ struct AIDebugWindow : public Window {
 	virtual void OnPaint()
 	{
 		/* Check if the currently selected company is still active. */
-		if (ai_debug_company == INVALID_COMPANY || !Company::IsValidID(ai_debug_company) || !Company::Get(ai_debug_company)->is_ai) {
+		if (ai_debug_company == INVALID_COMPANY || !Company::IsValidAiID(ai_debug_company)) {
 			if (ai_debug_company != INVALID_COMPANY) {
 				/* Raise and disable the widget for the previous selection. */
 				this->RaiseWidget(ai_debug_company + AID_WIDGET_COMPANY_BUTTON_START);
@@ -670,13 +669,13 @@ struct AIDebugWindow : public Window {
 				ai_debug_company = INVALID_COMPANY;
 			}
 
-			for (CompanyID i = COMPANY_FIRST; i < MAX_COMPANIES; i++) {
-				Company *c = Company::GetIfValid(i);
-				if (c != NULL && c->is_ai) {
+			const Company *c;
+			FOR_ALL_COMPANIES(c) {
+				if (c->is_ai) {
 					/* Lower the widget corresponding to this company. */
-					this->LowerWidget(i + AID_WIDGET_COMPANY_BUTTON_START);
+					this->LowerWidget(c->index + AID_WIDGET_COMPANY_BUTTON_START);
 
-					ai_debug_company = i;
+					ai_debug_company = c->index;
 					break;
 				}
 			}
@@ -696,7 +695,7 @@ struct AIDebugWindow : public Window {
 			/* Background is grey by default, will be changed to red for dead AIs */
 			this->widget[i + AID_WIDGET_COMPANY_BUTTON_START].colour = COLOUR_GREY;
 
-			Company *c = Company::GetIfValid(i);
+			const Company *c = Company::GetIfValid(i);
 			if (c == NULL || !c->is_ai) {
 				/* Check if we have the company as an active company */
 				if (!this->IsWidgetDisabled(i + AID_WIDGET_COMPANY_BUTTON_START)) {

src/ai/ai_instance.cpp

@@ -363,7 +363,7 @@ void AIInstance::CollectGarbage()
 
 /* static */ AIStorage *AIInstance::GetStorage()
 {
-	assert(Company::IsValidID(_current_company) && !IsHumanCompany(_current_company));
+	assert(Company::IsValidAiID(_current_company));
 	return Company::Get(_current_company)->ai_instance->storage;
 }