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(svn r20651) -Codechange: add a function to determine whether an object is available and use it

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rubidium 2010-08-28 17:36:28 +00:00
parent 6348aa7964
commit 0a86eac2f1
3 changed files with 18 additions and 1 deletions
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11
src/newgrf_object.cpp
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@ -11,6 +11,7 @@
#include "stdafx.h"
#include "core/mem_func.hpp"
#include "date_func.h"
#include "newgrf.h"
#include "newgrf_class_func.h"
#include "newgrf_object.h"
@ -35,6 +36,16 @@ ObjectSpec _object_specs[NUM_OBJECTS];
return ObjectSpec::Get(GetObjectType(tile));
}
bool ObjectSpec::IsAvailable() const
{
return
this->enabled &&
_date > this->introduction_date &&
(_date < this->end_of_life_date || this->end_of_life_date < this->introduction_date + 365) &&
HasBit(this->climate, _settings_game.game_creation.landscape) &&
(flags & (_game_mode != GM_EDITOR ? OBJECT_FLAG_ONLY_IN_SCENEDIT : OBJECT_FLAG_ONLY_IN_GAME)) == 0;
}
/** This function initialize the spec arrays of objects. */
void ResetObjects()
{

6
src/newgrf_object.h
View File

@ -69,6 +69,12 @@ struct ObjectSpec {
uint8 height; ///< The height of this structure, in heightlevels; max MAX_TILE_HEIGHT.
bool enabled; ///< Is this spec enabled?
/**
* Check whether the object is available at this time.
* @return true if it is available.
*/
bool IsAvailable() const;
/**
* Get the cost for building a structure of this type.
* @return The cost for building.

2
src/object_cmd.cpp
View File

@ -122,7 +122,7 @@ CommandCost CmdBuildObject(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
ObjectType type = (ObjectType)GB(p1, 0, 8);
const ObjectSpec *spec = ObjectSpec::Get(type);
if (!spec->enabled) return CMD_ERROR;
if (!spec->IsAvailable()) return CMD_ERROR;
if (spec->flags & OBJECT_FLAG_ONLY_IN_SCENEDIT && (_game_mode != GM_EDITOR || _current_company != OWNER_NONE)) return CMD_ERROR;
if (spec->flags & OBJECT_FLAG_ONLY_IN_GAME && (_game_mode != GM_NORMAL || _current_company > MAX_COMPANIES)) return CMD_ERROR;