Implement sub-tile collboxes

These will be later used by the pathfinding algorithm.

3 files changed, 16 insertions, 1 deletions

diff --git a/src/building/CMakeLists.txt b/src/building/CMakeLists.txt
index 3eb352e..5bfa674 100644
--- a/src/building/CMakeLists.txt
+++ b/src/building/CMakeLists.txt
@@ -1,3 +1,3 @@
 add_library(building "src/building.c")
 target_include_directories(building PUBLIC "inc")
-target_link_libraries(building PUBLIC gfx instance camera)
+target_link_libraries(building PUBLIC gfx instance camera util)
diff --git a/src/building/inc/building.h b/src/building/inc/building.h
index 7763b7d..a0ab539 100644
--- a/src/building/inc/building.h
+++ b/src/building/inc/building.h
@@ -5,6 +5,7 @@
 #include <camera.h>
 #include <gfx.h>
 #include <instance.h>
+#include <util.h>
 #include <stdbool.h>
 #include <stddef.h>
 
@@ -28,6 +29,7 @@ struct building_cfg
 };
 
 void building_create(const struct building_cfg *cfg, struct building *b);
+void building_set_alive_cb(void (*f)(const struct util_rect *dim, bool alive, void *p), void *p);
 int building_render(const struct building *b, const struct camera *cam, bool sel);
 instance_hp building_maxhp(const struct building *b);
 const char *building_str(const struct building *b);
diff --git a/src/building/src/building.c b/src/building/src/building.c
index 5b94ee3..5ff9183 100644
--- a/src/building/src/building.c
+++ b/src/building/src/building.c
@@ -56,6 +56,9 @@ static void get_dimensions(const enum building_type type, short *const w,
     *h = d->h;
 }
 
+static void *op;
+static void (*cb)(const struct util_rect *, bool, void *);
+
 void building_create(const struct building_cfg *const cfg,
     struct building *const b)
 {
@@ -67,6 +70,16 @@ void building_create(const struct building_cfg *const cfg,
     i->r.y = cfg->y;
     i->alive = true;
     i->hp = building_maxhp(b);
+
+    if (cb)
+        cb(&i->r, i->alive, op);
+}
+
+void building_set_alive_cb(void (*const f)(const struct util_rect *, bool, void *),
+    void *const p)
+{
+    cb = f;
+    op = p;
 }
 
 const char *building_str(const struct building *const b)