5 files changed, 27 insertions, 5 deletions
diff --git a/src/main/engine/engine.c b/src/main/engine/engine.c
index 495b960..d9477cc 100644
--- a/src/main/engine/engine.c
+++ b/src/main/engine/engine.c
@@ -96,14 +96,21 @@ engine_calculate_fps()
 }
 
 static void
+engine_set_background(Engine *engine)
+{
+	if (engine == NULL || engine->rendering_background == NULL) return;
+	Color *bk = engine->rendering_background;
+	glClearColor(bk->r, bk->g, bk->b, bk->a);
+}
+
+static void
 draw_frames(void *data)
 {
 	if (data == NULL) return;
 
 	Engine *engine = data;
-	Color *bk = engine->rendering_background;
 
-	glClearColor(bk->r, bk->g, bk->b, bk->a);
+	engine_set_background(engine);
 	glClear(GL_COLOR_BUFFER_BIT);
 	glEnable(GL_LINE_SMOOTH);
 	glEnable(GL_BLEND);
diff --git a/src/main/engine/shape/circle.c b/src/main/engine/shape/circle.c
index f60e917..996ae19 100644
--- a/src/main/engine/shape/circle.c
+++ b/src/main/engine/shape/circle.c
@@ -40,6 +40,10 @@ engine_render_circle(Circle *circle)
 {
 	glBegin(GL_LINE_LOOP);
 
+	if (circle->color != NULL) {
+		glColor3f(circle->color->r, circle->color->g, circle->color->b);
+	}
+
 	for (int i = 0; i < circle->num_segments; i++) {
 		float theta = 2.0f * M_PI * i / circle->num_segments;
 		float x = circle->r * cosf(theta);
@@ -49,3 +53,10 @@ engine_render_circle(Circle *circle)
 
 	glEnd();
 }
+
+void
+engine_circle_set_color(Circle *circle, Color *color)
+{
+	if (circle == NULL) return;
+	circle->color = color;
+}
diff --git a/src/main/engine/shape/circle.h b/src/main/engine/shape/circle.h
index 67c3a46..3830256 100644
--- a/src/main/engine/shape/circle.h
+++ b/src/main/engine/shape/circle.h
@@ -33,5 +33,6 @@ typedef struct {
 
 Circle *engine_circle_new(float cx, float cy, float r, int num_segments, int outline);
 void    engine_render_circle(Circle *circle);
+void    engine_circle_set_color(Circle *, Color *);
 
 #endif /* __CIRCLE_H__ */
diff --git a/src/main/engine/shape/line.c b/src/main/engine/shape/line.c
index 7c0bc18..c3ef502 100644
--- a/src/main/engine/shape/line.c
+++ b/src/main/engine/shape/line.c
@@ -47,13 +47,16 @@ engine_render_line(Line *line)
 }
 
 void
-engine_render_lines(list_t *lines)
+engine_render_lines(list_t *lines, Color *color)
 {
 	if (lines == NULL || lines->size <= 0) return;
 
 	glLineWidth(5.0f);
 	glBegin(GL_LINES);
-	glColor3f(1.0f, 1.0f, 0.0f); /* Yellow */
+
+	if (color != NULL) {
+		glColor3f(color->r, color->g, color->b);
+	}
 
 	list_node_t *current = lines->head;
 	do {
diff --git a/src/main/engine/shape/line.h b/src/main/engine/shape/line.h
index c1a933d..ec589a9 100644
--- a/src/main/engine/shape/line.h
+++ b/src/main/engine/shape/line.h
@@ -30,6 +30,6 @@ typedef struct Line {
 
 Line  *engine_line_new(float x1, float y1, float x2, float y2);
 void   engine_render_line(Line *line);
-void   engine_render_lines(list_t *lines);
+void   engine_render_lines(list_t *lines, Color *color);
 
 #endif /* __ENGINE_LINE_H__ */