make beep use a game sound

src/tools/winutil.cpp

@@ -2,6 +2,8 @@
 
 #include "keymods.hpp"
 
+void play_sound(snd_num_t which, sf::Time delay = sf::Time());
+
 // The default scale should be the largest that the user's screen can fit all three
 // BoE application windows (because they should probably default to match each other).
 double fallback_scale() {
@@ -48,4 +50,8 @@ bool pollEvent(sf::Window& win, sf::Event& event){
 
 bool pollEvent(sf::Window* win, sf::Event& event){
     return pollEvent(*win, event);
+}
+
+void beep() {
+	play_sound(1);
 }

src/tools/winutil.linux.cpp

@@ -224,9 +224,6 @@ std::unique_ptr<sf::Image> get_clipboard_img() {
 	return nullptr;
 }
 
-void beep() {
-}
-
 void launchURL(std::string url) {
 	system((std::string { "xdg-open " } + url).c_str());
 }

src/tools/winutil.mac.mm

@@ -169,10 +169,6 @@ std::unique_ptr<sf::Image> get_clipboard_img() {
 	return ret;
 }
 
-void beep() {
-	NSBeep();
-}
-
 void launchURL(std::string url) {
 	[[NSWorkspace sharedWorkspace] openURL:[NSURL URLWithString:[NSString stringWithUTF8String:url.c_str()]]];
 }

src/tools/winutil.win.cpp

@@ -418,10 +418,6 @@ CLEANUP:
 	return img;
 }
 
-void beep() {
-	MessageBeep(-1);
-}
-
 void launchURL(std::string url) {
 	ShellExecuteA(NULL, "open", url.c_str(), NULL, NULL, SW_SHOWNORMAL);
 }