Implement sub-tile collboxes

These will be later used by the pathfinding algorithm.

2 files changed, 20 insertions, 1 deletions

diff --git a/src/resource/inc/resource.h b/src/resource/inc/resource.h
index 56da45e..aa7f1bd 100644
--- a/src/resource/inc/resource.h
+++ b/src/resource/inc/resource.h
@@ -41,6 +41,7 @@ struct resource_cfg
 };
 
 const struct container_list *resource_res(void);
+void resource_set_alive_cb(void (*f)(const struct util_rect *dim, bool alive, void *p), void *p);
 int resource_create(const struct resource_cfg *cfg, struct resource *list, size_t n);
 int resource_render(const struct resource *res, const struct camera *cam, bool sel);
 instance_sheltered_cb resource_shelter(const struct resource *res);
diff --git a/src/resource/src/resource.c b/src/resource/src/resource.c
index ae0b528..40f2301 100644
--- a/src/resource/src/resource.c
+++ b/src/resource/src/resource.c
@@ -5,6 +5,8 @@
 #include <stddef.h>
 
 struct sprite resource_sprites[MAX_RESOURCE_TYPES];
+static void (*cb)(const struct util_rect *, bool, void *);
+static void *op;
 
 static bool gold_shelter(struct instance *const self,
     struct instance *const other)
@@ -39,7 +41,12 @@ instance_sheltered_cb resource_shelter(const struct resource *res)
 
 bool resource_harvested(struct instance *const self, const instance_hp ap)
 {
-    return instance_attacked(self, ap);
+    const bool ret = instance_attacked(self, ap);
+
+    if (ret && cb)
+        cb(&self->r, self->alive, op);
+
+    return ret;
 }
 
 instance_hp resource_maxhp(const struct resource *const res)
@@ -120,6 +127,10 @@ int resource_create(const struct resource_cfg *const cfg, struct resource *const
             in->r.y = cfg->y;
             in->alive = true;
             in->hp = resource_maxhp(r);
+
+            if (cb)
+                cb(&in->r, in->alive, op);
+
             return 0;
         }
     }
@@ -127,6 +138,13 @@ int resource_create(const struct resource_cfg *const cfg, struct resource *const
     return -1;
 }
 
+void resource_set_alive_cb(void (*const f)(const struct util_rect *, bool, void *),
+    void *const p)
+{
+    cb = f;
+    op = p;
+}
+
 const char *resource_str(const struct resource *const res)
 {
     static const char *const str[] =