Minor improvements

1 files changed, 12 insertions, 3 deletions

diff --git a/src/eetg.c b/src/eetg.c
index 8a95ede..816a410 100644
--- a/src/eetg.c
+++ b/src/eetg.c
@@ -64,7 +64,7 @@ eetg_object_unset(struct eetg_object *object)
     object->layer_id = -1;
 }
 
-static char
+static signed char
 eetg_object_get_char(const struct eetg_object *object, int x, int y)
 {
     int index;
@@ -112,7 +112,7 @@ eetg_object_check_collision(struct eetg_object *object1,
 
     for (int i = xtl; i <= xbr; i++) {
         for (int j = ytl; j <= ybr; j++) {
-            char c1, c2;
+            signed char c1, c2;
             bool hit;
 
             c1 = eetg_object_get_char(object1, i, j);
@@ -214,7 +214,7 @@ eetg_layer_lookup(struct eetg_layer *layer, int x, int y)
     for (struct eetg_object *object = layer->objects;
          object;
          object = object->next) {
-        char c;
+        signed char c;
 
         c = eetg_object_get_char(object, x, y);
 
@@ -894,6 +894,15 @@ eetg_object_get_world(const struct eetg_object *object)
     return object->world;
 }
 
+bool
+eetg_object_has_type(const struct eetg_object *object1,
+                     const struct eetg_object *object2,
+                     int type)
+{
+    return (eetg_object_get_type(object1) == type)
+           || (eetg_object_get_type(object2) == type);
+}
+
 void eetg_init_rand(unsigned int seed)
 {
     eetg_rand_next = seed;