2 files changed, 6 insertions, 8 deletions

diff --git a/src/main/engine/engine.c b/src/main/engine/engine.c
index 97ba445..36bb352 100644
--- a/src/main/engine/engine.c
+++ b/src/main/engine/engine.c
@@ -46,8 +46,6 @@ init_log(void)
 static int width;
 static int height;
 
-static list_t *lines = NULL;
-
 typedef struct Line {
 	float x1, y1, x2, y2;
 } Line;
@@ -79,14 +77,13 @@ engine_new(int w, int h)
 		exit(EXIT_FAILURE);
 	}
 	engine->circles = list_create();
+	engine->lines = list_create();
 	engine_set_rendering_background(engine, 0.0f, 0.0f, 0.2f, 1.0f);
 
 	width = w;
 	height = h;
 	engine->ui = ui_init(w, h);
 
-	lines = list_create();
-
 	return engine;
 }
 
@@ -125,9 +122,9 @@ engine_new_line(float x1, float y1, float x2, float y2)
 void
 engine_draw_line(float x1, float y1, float x2, float y2)
 {
-	if (lines != NULL) {
+	if (engine->lines != NULL) {
 		Line *line = engine_new_line(x1, y1, x2, y2);
-		list_add(lines, line);
+		list_add(engine->lines, line);
 	}
 }
 
@@ -156,13 +153,13 @@ render_line(Line *line)
 static void
 draw_lines()
 {
-	if (lines == NULL || lines->size <= 0) return;
+	if (engine->lines == NULL || engine->lines->size <= 0) return;
 
 	glLineWidth(5.0f);
 	glBegin(GL_LINES);
 	glColor3f(1.0f, 1.0f, 0.0f); /* Yellow */
 
-	list_node_t *current = lines->head;
+	list_node_t *current = engine->lines->head;
 	do {
 		render_line(current->data);
 		current = current->next;
diff --git a/src/main/engine/engine.h b/src/main/engine/engine.h
index f77fc4e..1e26f05 100644
--- a/src/main/engine/engine.h
+++ b/src/main/engine/engine.h
@@ -31,6 +31,7 @@ enum EngineInput {
 typedef struct {
 	UI *ui;
 	list_t *circles;
+	list_t *lines;
 	void (*draw_frame)();
 	float ortho_left, ortho_right, ortho_top, ortho_bottom;
 	Color *rendering_background;