From 77a456b65b3d21213db9a5c88076f511b753e07c Mon Sep 17 00:00:00 2001
From: Alessandro Iezzi <aiezzi@alessandroiezzi.it>
Date: Sun, 18 May 2025 11:35:29 +0200
Subject: Add the mouse button pressed in the graphics engine

---
 src/main/engine/engine.c | 10 ++++++++++
 src/main/engine/engine.h |  1 +
 2 files changed, 11 insertions(+)

(limited to 'src/main/engine')

diff --git a/src/main/engine/engine.c b/src/main/engine/engine.c
index e0da00c..e619dc7 100644
--- a/src/main/engine/engine.c
+++ b/src/main/engine/engine.c
@@ -46,6 +46,7 @@ static int frames;
 static time_t end;
 
 void (*dispatch_ui_event)(int);
+void (*on_mouse_pressed)();
 
 void
 engine_init(int w, int h)
@@ -108,6 +109,12 @@ engine_loop(void (*draw_frame)())
 	ui_loop();
 }
 
+void
+engine_on_mouse_pressed(void (*event)())
+{
+	on_mouse_pressed = event;
+}
+
 static void
 engine_dispatch_ui_events(int type)
 {
@@ -116,6 +123,9 @@ engine_dispatch_ui_events(int type)
 #ifdef X11
 		case ButtonPress:
 			event_type = ENGINE_MOUSE_PRESSED;
+			if (on_mouse_pressed != NULL) {
+				on_mouse_pressed();
+			}
 			break;
 #endif
 		default:
diff --git a/src/main/engine/engine.h b/src/main/engine/engine.h
index fc4c5b9..db555fc 100644
--- a/src/main/engine/engine.h
+++ b/src/main/engine/engine.h
@@ -28,5 +28,6 @@ void engine_init(int width, int height);
 void engine_draw_line(int x1, int y1, int x2, int y2);
 void engine_loop(void (*draw_frame)());
 void engine_input(void (*f_input)(int engine_input));
+void engine_on_mouse_pressed(void (*event)());
 
 #endif /* __ENGINE_H__ */
-- 
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