fix mining nearest block on android

src/core/controls.c

@@ -46,6 +46,23 @@ bool check_collision_touch(Vector2 position, float size) {
   return !Vector2Equals(get_collision_touch(position, size), VEC_ZERO);
 }
 
+Vector2 get_nearest_touch(Vector2 position)
+{
+    const int touch_count = GetTouchPointCount();
+    Vector2 nearest = VEC_ZERO;
+    float distance = 0;
+    for (int i = 0; i < touch_count; i++) {
+        Vector2 point =
+            VEC(FORMAT_W(GetTouchPosition(i).x), FORMAT_H(GetTouchPosition(i).y));
+        float d = Vector2Distance(point, position);
+        if (d < distance || distance == 0) {
+          distance = d;
+          nearest = point;
+        }
+    }
+    return nearest;
+}
+
 Vector2 get_collision_touch(Vector2 position, float size) {
   const int touch_count = GetTouchPointCount();
   for (int i = 0; i < touch_count; i++) {

src/core/controls.h

@@ -33,6 +33,7 @@ void clear_controls(w_controls *kb);
 
 #ifdef __ANDROID__
 bool check_collision_touch(Vector2 position, float size);
+Vector2 get_nearest_touch(Vector2 position);
 Vector2 get_collision_touch(Vector2 position, float size);
 
 bool check_collision_touch_rect(Rectangle rect);

src/gui/joystick.c

@@ -22,7 +22,7 @@ Vector2 update_joystick(w_guijoystick *js) {
 
 #ifdef __ANDROID__
   if (has_touch()) {
-    Vector2 mouse = VEC(FORMAT_W(GetMouseX()), FORMAT_H(GetMouseY()));
+    Vector2 mouse = get_nearest_touch(Vector2SubtractValue(js->position, js->size/2.f));
     Vector2 touch = get_collision_touch(js->position, js->size);
 #else
   if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) {