Changeset - r19733:8b1cf3a878b4
[Not reviewed]
master
0 2 0
alberth - 12 years ago 2012-11-10 20:43:40
alberth@openttd.org
(svn r24688) -Codechange: Add resolver classes for generics.
2 files changed with 76 insertions and 78 deletions:
0 comments (0 inline, 0 general)
src/newgrf_generic.cpp
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@@ -18,6 +18,42 @@
 
#include "water_map.h"
 
#include <list>
 

	
 
/** Scope resolver for generic objects and properties. */
 
struct GenericScopeResolver : public ScopeResolver {
 
	CargoID cargo_type;
 
	uint8 default_selection;
 
	uint8 src_industry;        ///< Source industry substitute type. 0xFF for "town", 0xFE for "unknown".
 
	uint8 dst_industry;        ///< Destination industry substitute type. 0xFF for "town", 0xFE for "unknown".
 
	uint8 distance;
 
	AIConstructionEvent event;
 
	uint8 count;
 
	uint8 station_size;
 

	
 
	GenericScopeResolver(ResolverObject *ro, bool ai_callback);
 

	
 
	/* virtual */ uint32 GetVariable(byte variable, uint32 parameter, bool *available) const;
 

	
 
private:
 
	bool ai_callback; ///< Callback comes from the AI.
 
};
 

	
 

	
 
/** Resolver object for generic objects/properties. */
 
struct GenericResolverObject : public ResolverObject {
 
	GenericScopeResolver generic_scope;
 

	
 
	GenericResolverObject(bool ai_callback, CallbackID callback = CBID_NO_CALLBACK);
 

	
 
	/* virtual */ ScopeResolver *GetScope(VarSpriteGroupScope scope = VSG_SCOPE_SELF, byte relative = 0)
 
	{
 
		switch (scope) {
 
			case VSG_SCOPE_SELF: return &this->generic_scope;
 
			default: return &this->default_scope; // XXX ResolverObject::GetScope(scope, relative);
 
		}
 
	}
 

	
 
	/* virtual */ const SpriteGroup *ResolveReal(const RealSpriteGroup *group) const;
 
};
 

	
 
struct GenericCallback {
 
	const GRFFile *file;
 
@@ -64,49 +100,24 @@ void AddGenericCallback(uint8 feature, c
 
	_gcl[feature].push_front(GenericCallback(file, group));
 
}
 

	
 

	
 
static uint32 GenericCallbackGetRandomBits(const ResolverObject *object)
 
{
 
	return 0;
 
}
 

	
 

	
 
static uint32 GenericCallbackGetTriggers(const ResolverObject *object)
 
{
 
	return 0;
 
}
 

	
 

	
 
static void GenericCallbackSetTriggers(const ResolverObject *object, int triggers)
 
{
 
	return;
 
}
 

	
 

	
 
static uint32 GenericCallbackGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
 
/* virtual */ uint32 GenericScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
 
{
 
	DEBUG(grf, 1, "Unhandled generic feature variable 0x%02X", variable);
 

	
 
	*available = false;
 
	return UINT_MAX;
 
}
 

	
 
static uint32 GenericAiCallbackGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
 
{
 
	switch (variable) {
 
		case 0x40: return object->grffile->cargo_map[object->u.generic.cargo_type];
 
	if (this->ai_callback) {
 
		switch (variable) {
 
			case 0x40: return this->ro->grffile->cargo_map[this->cargo_type];
 

	
 
		case 0x80: return object->u.generic.cargo_type;
 
		case 0x81: return CargoSpec::Get(object->u.generic.cargo_type)->bitnum;
 
		case 0x82: return object->u.generic.default_selection;
 
		case 0x83: return object->u.generic.src_industry;
 
		case 0x84: return object->u.generic.dst_industry;
 
		case 0x85: return object->u.generic.distance;
 
		case 0x86: return object->u.generic.event;
 
		case 0x87: return object->u.generic.count;
 
		case 0x88: return object->u.generic.station_size;
 
			case 0x80: return this->cargo_type;
 
			case 0x81: return CargoSpec::Get(this->cargo_type)->bitnum;
 
			case 0x82: return this->default_selection;
 
			case 0x83: return this->src_industry;
 
			case 0x84: return this->dst_industry;
 
			case 0x85: return this->distance;
 
			case 0x86: return this->event;
 
			case 0x87: return this->count;
 
			case 0x88: return this->station_size;
 

	
 
		default: break;
 
			default: break;
 
		}
 
	}
 

	
 
	DEBUG(grf, 1, "Unhandled generic feature variable 0x%02X", variable);
 
@@ -116,7 +127,7 @@ static uint32 GenericAiCallbackGetVariab
 
}
 

	
 

	
 
static const SpriteGroup *GenericCallbackResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
 
/* virtual */ const SpriteGroup *GenericResolverObject::ResolveReal(const RealSpriteGroup *group) const
 
{
 
	if (group->num_loaded == 0) return NULL;
 

	
 
@@ -124,18 +135,21 @@ static const SpriteGroup *GenericCallbac
 
}
 

	
 

	
 
static inline void NewGenericResolver(ResolverObject *res, bool ai_callback)
 
GenericResolverObject::GenericResolverObject(bool ai_callback, CallbackID callback) : ResolverObject(NULL, callback), generic_scope(this, ai_callback)
 
{
 
}
 

	
 
GenericScopeResolver::GenericScopeResolver(ResolverObject *ro, bool ai_callback) : ScopeResolver(ro)
 
{
 
	res->GetRandomBits = &GenericCallbackGetRandomBits;
 
	res->GetTriggers   = &GenericCallbackGetTriggers;
 
	res->SetTriggers   = &GenericCallbackSetTriggers;
 
	res->GetVariable   = ai_callback ? &GenericAiCallbackGetVariable : &GenericCallbackGetVariable;
 
	res->ResolveRealMethod = &GenericCallbackResolveReal;
 

	
 
	res->callback        = CBID_NO_CALLBACK;
 
	res->callback_param1 = 0;
 
	res->callback_param2 = 0;
 
	res->ResetState();
 
	this->cargo_type = 0;
 
	this->default_selection = 0;
 
	this->src_industry = 0;
 
	this->dst_industry = 0;
 
	this->distance = 0;
 
	this->event = (AIConstructionEvent)0;
 
	this->count = 0;
 
	this->station_size = 0;
 
	this->ai_callback = ai_callback;
 
}
 

	
 

	
 
@@ -192,9 +206,7 @@ static uint16 GetGenericCallbackResult(u
 
 */
 
uint16 GetAiPurchaseCallbackResult(uint8 feature, CargoID cargo_type, uint8 default_selection, IndustryType src_industry, IndustryType dst_industry, uint8 distance, AIConstructionEvent event, uint8 count, uint8 station_size, const GRFFile **file)
 
{
 
	ResolverObject object;
 

	
 
	NewGenericResolver(&object, true);
 
	GenericResolverObject object(true, CBID_GENERIC_AI_PURCHASE_SELECTION);
 

	
 
	if (src_industry != IT_AI_UNKNOWN && src_industry != IT_AI_TOWN) {
 
		const IndustrySpec *is = GetIndustrySpec(src_industry);
 
@@ -208,15 +220,14 @@ uint16 GetAiPurchaseCallbackResult(uint8
 
		if (is->grf_prop.subst_id != INVALID_INDUSTRYTYPE) dst_industry = is->grf_prop.subst_id;
 
	}
 

	
 
	object.callback = CBID_GENERIC_AI_PURCHASE_SELECTION;
 
	object.u.generic.cargo_type        = cargo_type;
 
	object.u.generic.default_selection = default_selection;
 
	object.u.generic.src_industry      = src_industry;
 
	object.u.generic.dst_industry      = dst_industry;
 
	object.u.generic.distance          = distance;
 
	object.u.generic.event             = event;
 
	object.u.generic.count             = count;
 
	object.u.generic.station_size      = station_size;
 
	object.generic_scope.cargo_type        = cargo_type;
 
	object.generic_scope.default_selection = default_selection;
 
	object.generic_scope.src_industry      = src_industry;
 
	object.generic_scope.dst_industry      = dst_industry;
 
	object.generic_scope.distance          = distance;
 
	object.generic_scope.event             = event;
 
	object.generic_scope.count             = count;
 
	object.generic_scope.station_size      = station_size;
 

	
 
	uint16 callback = GetGenericCallbackResult(feature, &object, 0, 0, file);
 
	if (callback != CALLBACK_FAILED) callback = GB(callback, 0, 8);
 
@@ -236,11 +247,8 @@ void AmbientSoundEffectCallback(TileInde
 
	uint32 r; // Save for later
 
	if (!Chance16R(1, 200, r)) return;
 

	
 
	ResolverObject object;
 

	
 
	/* Prepare resolver object. */
 
	NewGenericResolver(&object, false);
 
	object.callback = CBID_SOUNDS_AMBIENT_EFFECT;
 
	GenericResolverObject object(false, CBID_SOUNDS_AMBIENT_EFFECT);
 

	
 
	uint32 param1_v7 = GetTileType(tile) << 28 | Clamp(TileHeight(tile), 0, 15) << 24 | GB(r, 16, 8) << 16 | GetTerrainType(tile);
 
	uint32 param1_v8 = GetTileType(tile) << 24 | GetTileZ(tile) << 16 | GB(r, 16, 8) << 8 | (HasTileWaterClass(tile) ? GetWaterClass(tile) : 0) << 3 | GetTerrainType(tile);
src/newgrf_spritegroup.h
Show inline comments
 
@@ -363,16 +363,6 @@ struct ResolverObject {
 
			IndustryGfx gfx;
 
			IndustryType type;
 
		} industry;
 
		struct {
 
			CargoID cargo_type;
 
			uint8 default_selection;
 
			uint8 src_industry;            ///< Source industry substitute type. 0xFF for "town", 0xFE for "unknown".
 
			uint8 dst_industry;            ///< Destination industry substitute type. 0xFF for "town", 0xFE for "unknown".
 
			uint8 distance;
 
			AIConstructionEvent event;
 
			uint8 count;
 
			uint8 station_size;
 
		} generic;
 
	} u;
 

	
 
	uint32 (*GetRandomBits)(const struct ResolverObject*);
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