Added retrievable type field to tags

core/exports/maintree/maintree.h

@@ -6,6 +6,18 @@
 #include <librr/types.h>
 #include <librr/linear_algebra.h>
 
+typedef enum
+{
+    MT_TAG_NONEXISTENT,
+    MT_TAG_INT,
+    MT_TAG_REAL,
+    MT_TAG_STRING,
+    MT_TAG_POINTER,
+    MT_TAG_VEC2,
+    MT_TAG_VEC3,
+    MT_TAG_VEC4
+} MtTagType;
+
 typedef void           MtEntity;
 
 /// @brief: An MtTask is a piece of functionality with an own state/context which will be executed on the same thread or set of threads.
@@ -60,6 +72,8 @@ void mt_tag_vec2(MtEntity *entity, char *name, rr_vec2f_s vector);
 void mt_tag_vec3(MtEntity *entity, char *name, rr_vec3f_s vector);
 void mt_tag_vec4(MtEntity *entity, char *name, rr_vec4f_s vector);
 
+MtTagType mt_get_tag_type(MtEntity *entity, char *name);
+bool_t mt_has_tag(MtEntity *entity, const char *name);
 void mt_untag(MtEntity *entity, char *name);
 
 i64_t mt_get_i64_tag(MtEntity *entity, char *name);

core/inc-c/entity.h

@@ -5,6 +5,18 @@
 #include <librr/types.h>
 #include <librr/linear_algebra.h>
 
+typedef enum
+{
+    MT_TAG_NONEXISTENT,
+    MT_TAG_INT,
+    MT_TAG_REAL,
+    MT_TAG_STRING,
+    MT_TAG_POINTER,
+    MT_TAG_VEC2,
+    MT_TAG_VEC3,
+    MT_TAG_VEC4
+} MtTagType;
+
 typedef struct MtEntityLookupTree   MtEntityLookupTree;
 typedef struct MtEntityListL1       MtEntityListL1;
 typedef struct MtEntityListL2       MtEntityListL2;
@@ -63,6 +75,7 @@ struct MtEntity
 struct MtTag
 {
     u32_t                       identifier;
+    MtTagType                   type;
     union MtTagData
     {
         i64_t                       integer;

core/src-c/entity_tagging.c

@@ -44,6 +44,7 @@ void mt_tag_i64(MtEntity *entity, char *name, i64_t integer)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_INT;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.integer = integer;
@@ -53,6 +54,7 @@ void mt_tag_f64(MtEntity *entity, char *name, f64_t real)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_REAL;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.real = real;
@@ -62,6 +64,7 @@ void mt_tag_str(MtEntity *entity, char *name, char *string)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_STRING;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.string = string;
@@ -71,6 +74,7 @@ void mt_tag_ptr(MtEntity *entity, char *name, void *pointer)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_POINTER;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.pointer = pointer;
@@ -80,6 +84,7 @@ void mt_tag_vec2(MtEntity *entity, char *name, rr_vec2f_s vector)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_VEC2;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.vec2f = vector;
@@ -89,6 +94,7 @@ void mt_tag_vec3(MtEntity *entity, char *name, rr_vec3f_s vector)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_VEC3;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.vec3f = vector;
@@ -97,11 +103,20 @@ void mt_tag_vec4(MtEntity *entity, char *name, rr_vec4f_s vector)
 {
     MtState *state = entity->parent_state;
     MtTag *tag = mt_get_entity_tag_slot(entity, name);
+    tag->type = MT_TAG_VEC4;
 
     mt_add_entity_to_tag_lookup_list(&state->tag_registry, name, entity->identifier);
     tag->data.vec4f = vector;
 }
 
+MtTagType mt_get_tag_type(MtEntity *entity, char *name)
+{
+    i16_t tag_slot_index = mt_get_entity_tag_slot_index(entity, name);
+    if(tag_slot_index < 0)
+        return MT_TAG_NONEXISTENT;
+    return entity->tags[tag_slot_index].type;
+}
+
 bool_t mt_has_tag(MtEntity *entity, const char *name)
 {
     MtState *state = entity->parent_state;

core/tests/interface/entity-tagging-api/main.c

@@ -18,6 +18,14 @@ int main()
         return -1;
     }
 
+    if(mt_get_tag_type(entity, "test-tag") != MT_TAG_INT)
+    {
+        puts("The integer tag's type wasn't stored correctly.");
+        return -2;
+    }
+    else
+        puts("Integer tags are correctly stored.");
+
     mt_drop(entity);
     mt_cleanup(state);
     puts("The program reached the end; this test is considered as passed. SUCCESS!");