Init, drawing walls semi-works

kubo_wall.c

@@ -0,0 +1,40 @@
+#include "kubo_wall.h"
+
+struct kubo_wall *kubo_wall_init() {
+    struct kubo_wall *wall = malloc(sizeof(struct kubo_wall));
+
+    if (!wall)
+        return NULL;
+
+    wall->num_vertices_alloc = KUBO_WALL_INIT_VERTICES;
+    wall->vertices = malloc(sizeof(Vector2) * wall->num_vertices_alloc);
+
+    return wall;
+}
+
+void kubo_wall_cleanup(struct kubo_wall *wall) {
+    free(wall->vertices);
+    free(wall);
+}
+
+bool kubo_wall_append(struct kubo_wall *wall, Vector2 vertex) {
+
+    Vector2 *new_vertices;
+
+    if (wall->num_vertices == wall->num_vertices_alloc - 1) {
+
+        wall->num_vertices_alloc *= 2;
+
+        new_vertices =
+            realloc(wall->vertices, sizeof(Vector2) * wall->num_vertices_alloc);
+
+        if (!new_vertices)
+            return false;
+
+        wall->vertices = new_vertices;
+    }
+
+    wall->vertices[wall->num_vertices++] = vertex;
+
+    return true;
+}