cpp/openttd-patchpack/source Changeset - r19267:1d5d8ee85137

Changeset - r19267:1d5d8ee85137

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frosch - 12 years ago 2012-04-22 16:28:32
frosch@openttd.org

(svn r24170) -Add: Methods for translating between NewGRFClass spec indices and user interface indices.

2 files changed with 50 insertions and 0 deletions:

src/newgrf_class.h

src/newgrf_class_func.h

0 comments (0 inline, 0 general)

src/newgrf_class.h

➞

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@@ @@ -46,6 +46,8 @@ public: @@
 	uint GetSpecCount() const { return this->count; }
 	/** Get the number of potentially user-available specs within the class. */
 	uint GetUISpecCount() const { return this->ui_count; }
 	int GetUIFromIndex(int index) const;
 	int GetIndexFromUI(int ui_index) const;
 	const Tspec *GetSpec(uint index) const;
@@ @@ -57,6 +59,7 @@ public: @@
 	static void Assign(Tspec *spec);
 	static uint GetClassCount();
 	static uint GetUIClassCount();
 	static Tid GetUIClass(uint index);
 	static NewGRFClass *Get(Tid cls_id);
 	static const Tspec *GetByGrf(uint32 grfid, byte local_id, int *index);

src/newgrf_class_func.h

➞

Show inline comments

@@ @@ -133,6 +133,20 @@ DEFINE_NEWGRF_CLASS_METHOD(uint)::GetUIC @@
+}
 /**
  * Get the nth-class with user available specs.
  * @param index UI index of a class.
  * @return The class ID of the class.
  */
 DEFINE_NEWGRF_CLASS_METHOD(Tid)::GetUIClass(uint index)
+{
 	for (uint i = 0; i < Tmax && classes[i].global_id != 0; i++) {
 		if (classes[i].GetUISpecCount() == 0) continue;
 		if (index-- == 0) return (Tid)i;
+	}
 	NOT_REACHED();
+}
 /**
  * Get a spec from the class at a given index.
  * @param index  The index where to find the spec.
  * @return The spec at given location.
@@ @@ -144,6 +158,36 @@ DEFINE_NEWGRF_CLASS_METHOD(const Tspec * @@
+}
 /**
  * Translate a UI spec index into a spec index.
  * @param ui_index UI index of the spec.
  * @return index of the spec, or -1 if out of range.
  */
 DEFINE_NEWGRF_CLASS_METHOD(int)::GetIndexFromUI(int ui_index) const
+{
 	if (ui_index < 0) return -1;
 	for (uint i = 0; i < this->GetSpecCount(); i++) {
 		if (!this->IsUIAvailable(i)) continue;
 		if (ui_index-- == 0) return i;
+	}
 	return -1;
+}
 /**
  * Translate a spec index into a UI spec index.
  * @param index index of the spec.
  * @return UI index of the spec, or -1 if out of range.
  */
 DEFINE_NEWGRF_CLASS_METHOD(int)::GetUIFromIndex(int index) const
+{
 	if ((uint)index >= this->GetSpecCount()) return -1;
 	uint ui_index = 0;
 	for (int i = 0; i < index; i++) {
 		if (this->IsUIAvailable(i)) ui_index++;
+	}
 	return ui_index;
+}
 /**
  * Retrieve a spec by GRF location.
  * @param grfid    GRF ID of spec.
  * @param local_id Index within GRF file of spec.
@@ @@ -180,5 +224,8 @@ DEFINE_NEWGRF_CLASS_METHOD(const Tspec * @@
 	template NewGRFClass<Tspec, Tid, Tmax> *name::Get(Tid cls_id); \
 	template uint name::GetClassCount(); \
 	template uint name::GetUIClassCount(); \
 	template Tid name::GetUIClass(uint index); \
 	template const Tspec *name::GetSpec(uint index) const; \
 	template int name::GetUIFromIndex(int index) const; \
 	template int name::GetIndexFromUI(int ui_index) const; \
 	template const Tspec *name::GetByGrf(uint32 grfid, byte localidx, int *index);

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