From bb4a482bfca8ec39f3f977330724b1c0066c32f9 Mon Sep 17 00:00:00 2001
From: Ted John <ted@brambles.org>
Date: Wed, 11 Jan 2017 22:53:33 +0000
Subject: [PATCH] Start writing new game action execution

---
 src/openrct2/actions/GameAction.cpp      | 82 +++++++++++++++++++++++-
 src/openrct2/actions/GameAction.h        |  3 +
 src/openrct2/localisation/localisation.h |  3 +
 3 files changed, 86 insertions(+), 2 deletions(-)

diff --git a/src/openrct2/actions/GameAction.cpp b/src/openrct2/actions/GameAction.cpp
index df139d6a08..2b348ba011 100644
--- a/src/openrct2/actions/GameAction.cpp
+++ b/src/openrct2/actions/GameAction.cpp
@@ -15,9 +15,18 @@
 #pragma endregion
 
 #include "../core/Guard.hpp"
+#include "../core/Memory.hpp"
 #include "../core/Util.hpp"
+#include "../network/network.h"
 #include "GameAction.h"
 
+extern "C"
+{
+    #include "../localisation/localisation.h"
+    #include "../windows/error.h"
+    #include "../world/park.h"
+}
+
 GameActionResult::GameActionResult()
 {
 }
@@ -55,25 +64,94 @@ namespace GameActions
         return result;
     }
 
+    static bool CheckActionInPausedMode(uint32 actionFlags)
+    {
+        if (gGamePaused == 0) return true;
+        if (gCheatsBuildInPauseMode) return true;
+        if (actionFlags & GA_FLAGS::ALLOW_WHILE_PAUSED) return true;
+        return false;
+    }
+
+    static bool CheckActionAffordability(const GameActionResult * result)
+    {
+        if (gParkFlags & PARK_FLAGS_NO_MONEY) return true;
+        if (result->Cost <= 0) return true;
+        if (result->Cost <= DECRYPT_MONEY(gCashEncrypted)) return true;
+        return false;
+    }
+
     GameActionResult Query(const IGameAction * action)
     {
         Guard::ArgumentNotNull(action);
 
-        return action->Query();
+        GameActionResult result;
+        uint16 actionFlags = action->GetFlags();
+        if (!CheckActionInPausedMode(actionFlags))
+        {
+            result.Error = GA_ERROR::GAME_PAUSED;
+            result.ErrorMessage = STR_CONSTRUCTION_NOT_POSSIBLE_WHILE_GAME_IS_PAUSED;
+        }
+        else
+        {
+            result = action->Query();
+            if (result.Error == GA_ERROR::OK)
+            {
+                if (!CheckActionAffordability(&result))
+                {
+                    result.Error = GA_ERROR::INSUFFICIENT_FUNDS;
+                    result.ErrorMessage = STR_NOT_ENOUGH_CASH_REQUIRES;
+                    set_format_arg_on(result.ErrorMessageArgs, 0, uint32, result.Cost);
+                }
+            }
+        }
+        return result;
     }
 
     void Execute(const IGameAction * action, GameActionCallback callback)
     {
         Guard::ArgumentNotNull(action);
 
-        GameActionResult result = action->Query();
+        uint16 actionFlags = action->GetFlags();
+        GameActionResult result = Query(action);
         if (result.Error == GA_ERROR::OK)
         {
+            // Execute the action, changing the game state
             result = action->Execute();
+
+            // Update money balance
+            if (!(gParkFlags & PARK_FLAGS_NO_MONEY) && result.Cost != 0)
+            {
+                finance_payment(result.Cost, result.ExpenditureType);
+                money_effect_create(result.Cost);
+            }
+
+            if (!(actionFlags & GA_FLAGS::CLIENT_ONLY))
+            {
+                if (network_get_mode() == NETWORK_MODE_SERVER)
+                {
+                    // network_set_player_last_action(network_get_player_index(network_get_current_player_id()), command);
+                    // network_add_player_money_spent(network_get_current_player_id(), cost);
+                }
+            }
+
+            // Allow autosave to commence
+            if (gLastAutoSaveUpdate == AUTOSAVE_PAUSE)
+            {
+                gLastAutoSaveUpdate = SDL_GetTicks();
+            }
         }
+
+        // Call callback for asynchronous events
         if (callback != nullptr)
         {
             callback(result);
         }
+
+        if (result.Error != GA_ERROR::OK)
+        {
+            // Show the error box
+            Memory::Copy(gCommonFormatArgs, result.ErrorMessageArgs, sizeof(result.ErrorMessageArgs));
+            window_error_open(result.ErrorTitle, result.ErrorMessage);
+        }
     }
 }
diff --git a/src/openrct2/actions/GameAction.h b/src/openrct2/actions/GameAction.h
index ce4d4a7123..06fc908b8d 100644
--- a/src/openrct2/actions/GameAction.h
+++ b/src/openrct2/actions/GameAction.h
@@ -34,6 +34,7 @@ enum class GA_ERROR : uint16
     OK,
     INVALID_PARAMETERS,
     DISALLOWED,
+    GAME_PAUSED,
     INSUFFICIENT_FUNDS,
 
     NOT_OWNED,
@@ -55,7 +56,9 @@ namespace GA_FLAGS
 struct GameActionResult
 {
     GA_ERROR        Error = GA_ERROR::OK;
+    rct_string_id   ErrorTitle = (rct_string_id)-1;
     rct_string_id   ErrorMessage = (rct_string_id)-1;
+    uint8           ErrorMessageArgs[8] = { 0 };
     rct_xyz32       Position = { 0 };
     money32         Cost = 0;
     uint16          ExpenditureType = 0;
diff --git a/src/openrct2/localisation/localisation.h b/src/openrct2/localisation/localisation.h
index f33a6e6eb1..f78b7b7cc3 100644
--- a/src/openrct2/localisation/localisation.h
+++ b/src/openrct2/localisation/localisation.h
@@ -104,6 +104,9 @@ static inline void set_format_arg_body(uint8 *args, size_t offset, uintptr_t val
     do { static_assert(sizeof(type) <= sizeof(uintptr_t), "Type too large"); \
     set_format_arg_body(gCommonFormatArgs, offset, (uintptr_t)value, sizeof(type)); } while (0)
 
+#define set_format_arg_on(args, offset, type, value)	\
+	set_format_arg_body(args, offset, (uintptr_t)value, sizeof(type))
+
 #define set_map_tooltip_format_arg(offset, type, value) \
     do { static_assert(sizeof(type) <= sizeof(uintptr_t), "Type too large"); \
     set_format_arg_body(gMapTooltipFormatArgs, offset, (uintptr_t)value, sizeof(type)); } while (0)