From c772a3e5d8d9507b898813cdfb597c14b07cdc61 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Tue, 2 Feb 2021 20:18:41 -0500
Subject: Added "bumping into something while running" sfx

---
 src/main.cpp   |  8 ++++---
 src/mixer.cpp  | 16 ++++++++++++++
 src/mixer.h    | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/party.cpp  |  5 +++--
 src/party.h    |  4 +++-
 src/renderer.h |  2 +-
 6 files changed, 95 insertions(+), 7 deletions(-)
 create mode 100644 src/mixer.cpp
 create mode 100644 src/mixer.h

(limited to 'src')

diff --git a/src/main.cpp b/src/main.cpp
index 5e5953b..1d1583f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,8 +5,9 @@
 #include "party.h"
 #include "timer.h"
 #include "map.h"
+#include "mixer.h"
 
-void loop(Renderer& renderer) {
+void loop(Renderer& renderer, Mixer& mixer) {
   Game game;
   Input keystate;
 
@@ -61,7 +62,7 @@ void loop(Renderer& renderer) {
 
     inputTimer.accumulate(frameTime);
     while (inputTimer.step()) {
-      party.move(game, keystate);
+      party.move(game, mixer, keystate);
     }
 
     animTimer.accumulate(frameTime);
@@ -79,8 +80,9 @@ int main(int, char**) {
   try
   {
     Renderer renderer;
+    Mixer mixer;
 
-    loop(renderer);
+    loop(renderer, mixer);
   } catch (const sdl_error& ex)
   {
     std::cout << "SDL error (" << ex.what() << ")" << std::endl;
diff --git a/src/mixer.cpp b/src/mixer.cpp
new file mode 100644
index 0000000..bfbedcd
--- /dev/null
+++ b/src/mixer.cpp
@@ -0,0 +1,16 @@
+#include "mixer.h"
+
+void Mixer::playSound(std::string filename) {
+  if (!sounds_.count(filename)) {
+    Mix_Chunk* sample = Mix_LoadWAV(filename.c_str());
+    if (!sample) {
+      throw mix_error();
+    }
+
+    sounds_[filename] = chunk_ptr(sample);
+  }
+
+  if (Mix_PlayChannel(-1, sounds_[filename].get(), 0) == -1) {
+    throw mix_error();
+  }
+}
diff --git a/src/mixer.h b/src/mixer.h
new file mode 100644
index 0000000..010bb09
--- /dev/null
+++ b/src/mixer.h
@@ -0,0 +1,67 @@
+#ifndef MIXER_H_6DF82000
+#define MIXER_H_6DF82000
+
+#include <SDL_mixer.h>
+#include <memory>
+#include <stdexcept>
+#include <map>
+#include <string>
+
+class mix_error : public std::logic_error {
+public:
+
+  mix_error() : std::logic_error(Mix_GetError())
+  {
+  }
+};
+
+class mix_wrapper {
+public:
+
+  mix_wrapper()
+  {
+    if (Mix_Init(0) != 0) {
+      mix_error ex;
+      Mix_Quit();
+
+    	throw ex;
+    }
+
+    if (Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, MIX_DEFAULT_FORMAT, 2, 1024) != 0) {
+      mix_error ex;
+      Mix_Quit();
+
+    	throw ex;
+    }
+  }
+
+  ~mix_wrapper()
+  {
+    Mix_CloseAudio();
+    Mix_Quit();
+  }
+};
+
+class chunk_deleter {
+public:
+
+  void operator()(Mix_Chunk* chunk) {
+    Mix_FreeChunk(chunk);
+  }
+};
+
+using chunk_ptr = std::unique_ptr<Mix_Chunk, chunk_deleter>;
+
+// MUST create the Renderer first!
+class Mixer {
+public:
+
+  void playSound(std::string filename);
+
+private:
+
+  mix_wrapper mix_;
+  std::map<std::string, chunk_ptr> sounds_;
+};
+
+#endif /* end of include guard: MIXER_H_6DF82000 */
diff --git a/src/party.cpp b/src/party.cpp
index 307bca8..b7284c7 100644
--- a/src/party.cpp
+++ b/src/party.cpp
@@ -1,6 +1,6 @@
 #include "party.h"
 #include "consts.h"
-#include <iostream>
+#include "mixer.h"
 
 void Party::addMember(Game& game, int spriteId) {
   int index = members_.size();
@@ -19,7 +19,7 @@ void Party::addMember(Game& game, int spriteId) {
   game.setSpriteState(spriteId, "still");
 }
 
-void Party::move(Game& game, const Input& keystate) {
+void Party::move(Game& game, Mixer& mixer, const Input& keystate) {
   if (members_.empty()) {
     return;
   }
@@ -151,6 +151,7 @@ void Party::move(Game& game, const Input& keystate) {
 
   if (blocked && state_ == State::Running) {
     stopRunning(game);
+    mixer.playSound("../res/bump.wav");
   }
 
   // Move everything
diff --git a/src/party.h b/src/party.h
index 2864073..59330c8 100644
--- a/src/party.h
+++ b/src/party.h
@@ -5,12 +5,14 @@
 #include <vector>
 #include "game.h"
 
+class Mixer;
+
 class Party {
 public:
 
   void addMember(Game& game, int spriteId);
 
-  void move(Game& game, const Input& keystate);
+  void move(Game& game, Mixer& mixer, const Input& keystate);
 
   void beginCrouch(Game& game);
 
diff --git a/src/renderer.h b/src/renderer.h
index f952ab3..71c4ade 100644
--- a/src/renderer.h
+++ b/src/renderer.h
@@ -32,7 +32,7 @@ public:
 
   sdl_wrapper()
   {
-    if (SDL_Init(SDL_INIT_VIDEO) != 0)
+    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) != 0)
     {
       sdl_error ex;
       SDL_Quit();
-- 
cgit 1.4.1