Implement touch controls

3 files changed, 11 insertions, 1 deletions

diff --git a/src/mouse/inc/mouse.h b/src/mouse/inc/mouse.h
index a4b4044..60b63d3 100644
--- a/src/mouse/inc/mouse.h
+++ b/src/mouse/inc/mouse.h
@@ -16,12 +16,13 @@ enum mouse_button
 
 struct mouse
 {
-    short x, y;
+    short x, y, dx, dy;
     int mask, oldmask;
 };
 
 void mouse_init(struct mouse *m);
 void mouse_update(struct mouse *m);
+bool mouse_pressed(const struct mouse *m, enum mouse_button b);
 bool mouse_justpressed(const struct mouse *m, enum mouse_button b);
 bool mouse_justreleased(const struct mouse *m, enum mouse_button b);
 
diff --git a/src/mouse/sdl-1.2/src/mouse.c b/src/mouse/sdl-1.2/src/mouse.c
index a0a6d90..cee4549 100644
--- a/src/mouse/sdl-1.2/src/mouse.c
+++ b/src/mouse/sdl-1.2/src/mouse.c
@@ -39,6 +39,7 @@ static void mouse_event(const SDL_MouseMotionEvent *const ev,
 
 void mouse_update(struct mouse *const m)
 {
+    const short x = m->x, y = m->y;
     SDL_Event ev;
     int n;
 
@@ -71,6 +72,9 @@ void mouse_update(struct mouse *const m)
         }
     }
 
+    m->dx = m->x - x;
+    m->dy = m->y - y;
+
 end:
 
     if (n < 0)
diff --git a/src/mouse/src/mouse.c b/src/mouse/src/mouse.c
index 5f5c059..bec978d 100644
--- a/src/mouse/src/mouse.c
+++ b/src/mouse/src/mouse.c
@@ -1,6 +1,11 @@
 #include <mouse.h>
 #include <stdbool.h>
 
+bool mouse_pressed(const struct mouse *const m, const enum mouse_button b)
+{
+    return m->mask & (1 << b);
+}
+
 bool mouse_justpressed(const struct mouse *const m,
     const enum mouse_button b)
 {