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-rw-r--r--.vscode/extensions.json1
-rw-r--r--contributing.md29
-rw-r--r--lib/soloud/CMakeLists.txt2
-rw-r--r--makefile3
-rw-r--r--mwe/audio/soloud/main.cpp3
-rw-r--r--mwe/dynlink/exec/CMakeLists.txt10
-rw-r--r--mwe/dynlink/exec/main.c2
-rw-r--r--mwe/dynlink/lib/CMakeLists.txt16
-rw-r--r--mwe/dynlink/lib/test.c (renamed from mwe/dynlink/lib/lib.c)0
-rw-r--r--mwe/dynlink/lib/test.h (renamed from mwe/dynlink/lib/lib.h)0
-rw-r--r--mwe/gameloop/include/gameObject.h54
-rw-r--r--mwe/gameloop/include/timer.h29
-rw-r--r--mwe/gameloop/src/loopManager.cpp113
-rw-r--r--mwe/gameloop/src/main.cpp1
-rw-r--r--mwe/gameloop/src/timer.cpp79
-rw-r--r--readme.md3
-rw-r--r--src/CMakeLists.txt30
-rw-r--r--src/crepe/Asset.cpp14
-rw-r--r--src/crepe/Asset.h33
-rw-r--r--src/crepe/CMakeLists.txt22
-rw-r--r--src/crepe/Sound.cpp60
-rw-r--r--src/crepe/Sound.h82
-rw-r--r--src/crepe/SoundContext.cpp20
-rw-r--r--src/crepe/SoundContext.h26
-rw-r--r--src/crepe/api/AudioSource.cpp22
-rw-r--r--src/crepe/api/AudioSource.h41
-rw-r--r--src/crepe/api/CMakeLists.txt9
-rw-r--r--src/crepe/api/Component.h10
-rw-r--r--src/crepe/util/CMakeLists.txt9
-rw-r--r--src/crepe/util/color.h41
-rw-r--r--src/crepe/util/log.cpp50
-rw-r--r--src/crepe/util/log.h36
-rw-r--r--src/example/CMakeLists.txt6
-rw-r--r--src/example/audio_internal.cpp45
-rw-r--r--src/example/particel.cpp (renamed from src/crepe/main.cpp)0
-rw-r--r--src/makefile6
-rw-r--r--src/readme.md8
-rw-r--r--src/test/CMakeLists.txt5
-rw-r--r--src/test/audio.cpp10
-rw-r--r--src/test/dummy.cpp (renamed from test/dummy.cpp)0
-rw-r--r--test/CMakeLists.txt21
41 files changed, 768 insertions, 183 deletions
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
index 5b380e1..977c0ca 100644
--- a/.vscode/extensions.json
+++ b/.vscode/extensions.json
@@ -1,5 +1,6 @@
{
"recommendations": [
+ "llvm-vs-code-extensions.vscode-clangd",
"EditorConfig.EditorConfig",
"ms-vscode.cmake-tools"
]
diff --git a/contributing.md b/contributing.md
index eec5bc0..9f87ec5 100644
--- a/contributing.md
+++ b/contributing.md
@@ -22,6 +22,35 @@
- When using libraries of which the header include order is important, make
sure to separate the include statements using a blank line (clang-format may
sort include statements, but does not sort across empty lines).
+- All engine-related code is implemented under the `crepe` namespace,
+ user-facing APIs under `crepe::api` (the folder structure should also reflect
+ this).
+- `using namespace` may not be used in header files, only in source files.
+- Do not (indirectly) include private dependency headers in API header files,
+ as these are no longer accessible when the engine is installed
+- Getter and setter functions are appropriately prefixed with `get_` and
+ `set_`.
+- Doxygen commands are used with a backslash instead of an at-sign (i.e.
+ `\brief` instead of `@brief`)
+- A singleton's instance is always accessed using a getter function that
+ instantiates its own class as a static variable within the getter function
+ scope, instead of storing the instance as a member variable directly:
+
+ ```cpp
+ class Bad {
+ static Bad instance;
+ Bad & get_instance() { return instance; }
+ };
+
+ class Good {
+ Good & get_instance() {
+ static Good instance;
+ return instance;
+ }
+ };
+ ```
+- Member variable default values should be directly defined in the class
+ declaration instead of using the constructor.
## CMakeLists specific
diff --git a/lib/soloud/CMakeLists.txt b/lib/soloud/CMakeLists.txt
index 8433281..aaccd96 100644
--- a/lib/soloud/CMakeLists.txt
+++ b/lib/soloud/CMakeLists.txt
@@ -9,7 +9,7 @@ add_subdirectory(../sdl2 sdl2)
project(soloud C CXX)
-add_library(soloud STATIC
+add_library(soloud SHARED
src/src/audiosource/ay/chipplayer.cpp
src/src/audiosource/ay/sndbuffer.cpp
src/src/audiosource/ay/sndchip.cpp
diff --git a/makefile b/makefile
index 737e7a8..dd7c587 100644
--- a/makefile
+++ b/makefile
@@ -6,6 +6,5 @@ doxygen: Doxyfile FORCE
FMT += $(shell git ls-files '*.c' '*.cpp' '*.h' '*.hpp')
format: FORCE
clang-format -i $(FMT)
-# clang tidy doesn't work that well :/
-# clang-tidy --fix-errors $(FMT)
+ $(MAKE) -C src $@
diff --git a/mwe/audio/soloud/main.cpp b/mwe/audio/soloud/main.cpp
index 25ba003..50df0b7 100644
--- a/mwe/audio/soloud/main.cpp
+++ b/mwe/audio/soloud/main.cpp
@@ -38,8 +38,7 @@ int main() {
this_thread::sleep_for(500ms);
// play all samples simultaniously
- for (unsigned i = 0; i < 3; i++)
- soloud.play(sfx[i]);
+ for (unsigned i = 0; i < 3; i++) soloud.play(sfx[i]);
this_thread::sleep_for(1000ms);
// stop all audio and exit
diff --git a/mwe/dynlink/exec/CMakeLists.txt b/mwe/dynlink/exec/CMakeLists.txt
index 5335f0f..465b45e 100644
--- a/mwe/dynlink/exec/CMakeLists.txt
+++ b/mwe/dynlink/exec/CMakeLists.txt
@@ -5,12 +5,20 @@ set(CMAKE_CXX_STANDARD 20)
project(main C CXX)
+add_executable(main main.c)
+
# Since we have the source code for the test library, we might as well let
# CMake use it so it automatically picks up the interface headers and compiles
# the library for us. The same can be achieved manually, but is more code.
add_subdirectory(../lib test)
-add_executable(main main.c)
+# include(ExternalProject)
+# ExternalProject_Add(test_ext
+# SOURCE_DIR ../../lib
+# CMAKE_ARGS -DCMAKE_INSTALL_PREFIX="${CMAKE_BINARY_DIR}/ext"
+# )
+# add_dependencies(main test_ext)
+# find_package(test REQUIRED)
# Make sure ld.so (linux) looks in the same folder as the final executable for
# the .so dependency
diff --git a/mwe/dynlink/exec/main.c b/mwe/dynlink/exec/main.c
index 2bbdc20..ff884f2 100644
--- a/mwe/dynlink/exec/main.c
+++ b/mwe/dynlink/exec/main.c
@@ -1,4 +1,4 @@
-#include <lib.h>
+#include <test.h>
int main() {
library_function();
diff --git a/mwe/dynlink/lib/CMakeLists.txt b/mwe/dynlink/lib/CMakeLists.txt
index 2d15353..7efc91a 100644
--- a/mwe/dynlink/lib/CMakeLists.txt
+++ b/mwe/dynlink/lib/CMakeLists.txt
@@ -5,6 +5,20 @@ set(CMAKE_CXX_STANDARD 20)
project(lib C CXX)
-add_library(test SHARED lib.c)
+add_library(test SHARED)
+
target_include_directories(test SYSTEM INTERFACE .)
+target_sources(test PUBLIC
+ test.c
+)
+
+target_sources(test PUBLIC FILE_SET HEADERS FILES
+ test.h
+)
+
+install(
+ TARGETS test
+ FILE_SET HEADERS DESTINATION include
+)
+
diff --git a/mwe/dynlink/lib/lib.c b/mwe/dynlink/lib/test.c
index c7a78e4..c7a78e4 100644
--- a/mwe/dynlink/lib/lib.c
+++ b/mwe/dynlink/lib/test.c
diff --git a/mwe/dynlink/lib/lib.h b/mwe/dynlink/lib/test.h
index 093eadb..093eadb 100644
--- a/mwe/dynlink/lib/lib.h
+++ b/mwe/dynlink/lib/test.h
diff --git a/mwe/gameloop/include/gameObject.h b/mwe/gameloop/include/gameObject.h
index fc7d026..abdc9b0 100644
--- a/mwe/gameloop/include/gameObject.h
+++ b/mwe/gameloop/include/gameObject.h
@@ -1,30 +1,32 @@
#pragma once
#include <iostream>
class GameObject {
- public:
- GameObject();
- GameObject(std::string name, float x, float y, float width, float height, float velX, float velY);
- std::string getName() const;
- float getX() const;
- float getY() const;
- float getWidth() const;
- float getHeight() const;
- float getVelX() const;
- float getVelY() const;
- void setName(std::string value);
- void setX(float value);
- void setY(float value);
- void setWidth(float value);
- void setHeight(float value);
- void setVelX(float value);
- void setVelY(float value);
- int direction;
- private:
- std::string name = "";
- float x = 0;
- float y = 0;
- float width = 0;
- float height = 0;
- float velX = 0;
- float velY = 0;
+public:
+ GameObject();
+ GameObject(std::string name, float x, float y, float width, float height,
+ float velX, float velY);
+ std::string getName() const;
+ float getX() const;
+ float getY() const;
+ float getWidth() const;
+ float getHeight() const;
+ float getVelX() const;
+ float getVelY() const;
+ void setName(std::string value);
+ void setX(float value);
+ void setY(float value);
+ void setWidth(float value);
+ void setHeight(float value);
+ void setVelX(float value);
+ void setVelY(float value);
+ int direction;
+
+private:
+ std::string name = "";
+ float x = 0;
+ float y = 0;
+ float width = 0;
+ float height = 0;
+ float velX = 0;
+ float velY = 0;
};
diff --git a/mwe/gameloop/include/timer.h b/mwe/gameloop/include/timer.h
index ca1e5f3..8273746 100644
--- a/mwe/gameloop/include/timer.h
+++ b/mwe/gameloop/include/timer.h
@@ -4,29 +4,30 @@
class LoopTimer {
public:
- static LoopTimer& getInstance();
- void start();
- void update();
- double getDeltaTime() const;
- int getCurrentTime() const;
+ static LoopTimer & getInstance();
+ void start();
+ void update();
+ double getDeltaTime() const;
+ int getCurrentTime() const;
void advanceFixedUpdate();
double getFixedDeltaTime() const;
- void setFPS(int FPS);
- int getFPS() const;
+ void setFPS(int FPS);
+ int getFPS() const;
double getGameScale();
void setGameScale(double);
- void enforceFrameRate();
+ void enforceFrameRate();
double getLag() const;
+
private:
- LoopTimer();
+ LoopTimer();
int FPS = 50;
double gameScale = 1;
double maximumDeltaTime = 0.25;
- double deltaTime;
+ double deltaTime;
double frameTargetTime = FPS / 1000;
- double fixedDeltaTime = 0.01;
- double elapsedTime;
- double elapsedFixedTime;
+ double fixedDeltaTime = 0.01;
+ double elapsedTime;
+ double elapsedFixedTime;
double time;
- uint64_t lastFrameTime;
+ uint64_t lastFrameTime;
};
diff --git a/mwe/gameloop/src/loopManager.cpp b/mwe/gameloop/src/loopManager.cpp
index dde3cef..0392853 100644
--- a/mwe/gameloop/src/loopManager.cpp
+++ b/mwe/gameloop/src/loopManager.cpp
@@ -1,92 +1,89 @@
#include "loopManager.h"
#include "timer.h"
-LoopManager::LoopManager(){
-}
-void LoopManager::processInput(){
+LoopManager::LoopManager() {}
+void LoopManager::processInput() {
SDL_Event event;
SDL_PollEvent(&event);
- switch(event.type){
+ switch (event.type) {
case SDL_QUIT:
gameRunning = false;
break;
case SDL_KEYDOWN:
- if(event.key.keysym.sym == SDLK_ESCAPE){
+ if (event.key.keysym.sym == SDLK_ESCAPE) {
gameRunning = false;
- }else if(event.key.keysym.sym == SDLK_i){
- LoopTimer::getInstance().setGameScale(LoopTimer::getInstance().getGameScale() + 0.1);
- }else if(event.key.keysym.sym == SDLK_k){
- LoopTimer::getInstance().setGameScale(LoopTimer::getInstance().getGameScale() - 0.1);
+ } else if (event.key.keysym.sym == SDLK_i) {
+ LoopTimer::getInstance().setGameScale(
+ LoopTimer::getInstance().getGameScale() + 0.1);
+ } else if (event.key.keysym.sym == SDLK_k) {
+ LoopTimer::getInstance().setGameScale(
+ LoopTimer::getInstance().getGameScale() - 0.1);
}
-
- break;
+
+ break;
}
}
-void LoopManager::fixedUpdate(){
- fprintf(stderr,"fixed update\n");
-}
+void LoopManager::fixedUpdate() { fprintf(stderr, "fixed update\n"); }
void LoopManager::loop() {
- LoopTimer& timer = LoopTimer::getInstance();
- timer.start();
+ LoopTimer & timer = LoopTimer::getInstance();
+ timer.start();
- while (gameRunning) {
- timer.update();
+ while (gameRunning) {
+ timer.update();
- while (timer.getLag() >= timer.getFixedDeltaTime()) {
- processInput();
- fixedUpdate();
- timer.advanceFixedUpdate();
- }
+ while (timer.getLag() >= timer.getFixedDeltaTime()) {
+ processInput();
+ fixedUpdate();
+ timer.advanceFixedUpdate();
+ }
- update();
- render();
+ update();
+ render();
- timer.enforceFrameRate();
- }
+ timer.enforceFrameRate();
+ }
- window.destroyWindow();
+ window.destroyWindow();
}
-void LoopManager::setup(){
+void LoopManager::setup() {
gameRunning = window.initWindow();
LoopTimer::getInstance().start();
LoopTimer::getInstance().setFPS(500);
-
- for(int i = 1; i < 3;i++){
- GameObject* square = new GameObject("square2",i*60,i*60,20,20,0,0);
+
+ for (int i = 1; i < 3; i++) {
+ GameObject * square
+ = new GameObject("square2", i * 60, i * 60, 20, 20, 0, 0);
objectList.push_back(square);
}
}
-void LoopManager::render(){
- fprintf(stderr,"**********render********** \n");
- if(gameRunning){
+void LoopManager::render() {
+ fprintf(stderr, "**********render********** \n");
+ if (gameRunning) {
window.render(objectList);
}
}
void LoopManager::update() {
- fprintf(stderr, "********** normal update ********** \n");
- LoopTimer& timer = LoopTimer::getInstance();
-
- float delta = timer.getDeltaTime();
- for (int i = 0; i < objectList.size(); i++) {
- GameObject* obj = objectList[i];
-
- // Move the object based on its direction
- if (obj->direction == 1) {
- obj->setX(obj->getX() + 50 * delta);
- } else {
- obj->setX(obj->getX() - 50 * delta);
- }
-
+ fprintf(stderr, "********** normal update ********** \n");
+ LoopTimer & timer = LoopTimer::getInstance();
- if (obj->getX() > 500) {
- obj->setX(500);
- obj->direction = 0; // Switch direction to left
- } else if (obj->getX() < 50) {
- obj->setX(50); // Clamp the position to the boundary
- obj->direction = 1; // Switch direction to right
- }
- }
-}
+ float delta = timer.getDeltaTime();
+ for (int i = 0; i < objectList.size(); i++) {
+ GameObject * obj = objectList[i];
+ // Move the object based on its direction
+ if (obj->direction == 1) {
+ obj->setX(obj->getX() + 50 * delta);
+ } else {
+ obj->setX(obj->getX() - 50 * delta);
+ }
+ if (obj->getX() > 500) {
+ obj->setX(500);
+ obj->direction = 0; // Switch direction to left
+ } else if (obj->getX() < 50) {
+ obj->setX(50); // Clamp the position to the boundary
+ obj->direction = 1; // Switch direction to right
+ }
+ }
+}
diff --git a/mwe/gameloop/src/main.cpp b/mwe/gameloop/src/main.cpp
index 9f407c4..c0f216a 100644
--- a/mwe/gameloop/src/main.cpp
+++ b/mwe/gameloop/src/main.cpp
@@ -5,7 +5,6 @@
#include "loopManager.h"
#include "timer.h"
-
int main(int argc, char * args[]) {
LoopManager gameLoop;
gameLoop.setup();
diff --git a/mwe/gameloop/src/timer.cpp b/mwe/gameloop/src/timer.cpp
index 03fb9eb..97baef6 100644
--- a/mwe/gameloop/src/timer.cpp
+++ b/mwe/gameloop/src/timer.cpp
@@ -1,68 +1,53 @@
#include "timer.h"
-LoopTimer::LoopTimer(){}
+LoopTimer::LoopTimer() {}
-LoopTimer& LoopTimer::getInstance() {
- static LoopTimer instance;
- return instance;
+LoopTimer & LoopTimer::getInstance() {
+ static LoopTimer instance;
+ return instance;
}
void LoopTimer::start() {
- lastFrameTime = SDL_GetTicks64();
- elapsedTime = 0;
- elapsedFixedTime = 0;
- deltaTime = 0;
+ lastFrameTime = SDL_GetTicks64();
+ elapsedTime = 0;
+ elapsedFixedTime = 0;
+ deltaTime = 0;
}
void LoopTimer::update() {
- uint64_t currentFrameTime = SDL_GetTicks64();
- deltaTime = (currentFrameTime - lastFrameTime) / 1000.0;
+ uint64_t currentFrameTime = SDL_GetTicks64();
+ deltaTime = (currentFrameTime - lastFrameTime) / 1000.0;
- if (deltaTime > maximumDeltaTime) {
- deltaTime = maximumDeltaTime;
- }
+ if (deltaTime > maximumDeltaTime) {
+ deltaTime = maximumDeltaTime;
+ }
deltaTime *= gameScale;
- elapsedTime += deltaTime;
- lastFrameTime = currentFrameTime;
+ elapsedTime += deltaTime;
+ lastFrameTime = currentFrameTime;
}
-double LoopTimer::getDeltaTime() const {
- return deltaTime;
-}
-int LoopTimer::getCurrentTime() const {
- return SDL_GetTicks();
-}
+double LoopTimer::getDeltaTime() const { return deltaTime; }
+int LoopTimer::getCurrentTime() const { return SDL_GetTicks(); }
-void LoopTimer::advanceFixedUpdate() {
- elapsedFixedTime += fixedDeltaTime;
-}
+void LoopTimer::advanceFixedUpdate() { elapsedFixedTime += fixedDeltaTime; }
-double LoopTimer::getFixedDeltaTime() const {
- return fixedDeltaTime;
-}
+double LoopTimer::getFixedDeltaTime() const { return fixedDeltaTime; }
void LoopTimer::setFPS(int FPS) {
- this->FPS = FPS;
- frameTargetTime = 1.0 / FPS;
+ this->FPS = FPS;
+ frameTargetTime = 1.0 / FPS;
}
-int LoopTimer::getFPS() const {
- return FPS;
-}
-void LoopTimer::setGameScale(double value){
- gameScale = value;
-};
-double LoopTimer::getGameScale(){
- return gameScale;
-}
+int LoopTimer::getFPS() const { return FPS; }
+void LoopTimer::setGameScale(double value) { gameScale = value; };
+double LoopTimer::getGameScale() { return gameScale; }
void LoopTimer::enforceFrameRate() {
- uint64_t currentFrameTime = SDL_GetTicks64();
- double frameDuration = (currentFrameTime - lastFrameTime) / 1000.0;
+ uint64_t currentFrameTime = SDL_GetTicks64();
+ double frameDuration = (currentFrameTime - lastFrameTime) / 1000.0;
- if (frameDuration < frameTargetTime) {
- uint32_t delayTime = (uint32_t)((frameTargetTime - frameDuration) * 1000.0);
- SDL_Delay(delayTime);
- }
-}
-double LoopTimer::getLag() const {
- return elapsedTime - elapsedFixedTime;
+ if (frameDuration < frameTargetTime) {
+ uint32_t delayTime
+ = (uint32_t) ((frameTargetTime - frameDuration) * 1000.0);
+ SDL_Delay(delayTime);
+ }
}
+double LoopTimer::getLag() const { return elapsedTime - elapsedFixedTime; }
diff --git a/readme.md b/readme.md
index f3aab09..5351dfe 100644
--- a/readme.md
+++ b/readme.md
@@ -7,7 +7,8 @@ This repository contains:
|`lib/`|third-party libraries as git submodules|
|`mwe/`|minimal working examples and proof-of-concepts|
|`src/crepe/`|game engine source code|
-|`test/`|game engine unit tests|
+|`src/test/`|unit tests|
+|`src/example`|standalone examples using game engine|
## Compilation
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b8ed359..f11402a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -7,13 +7,35 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
set(CMAKE_BUILD_TYPE Debug)
add_compile_definitions(DEBUG)
+add_subdirectory(../lib/soloud soloud)
+add_subdirectory(../lib/googletest googletest)
+
project(crepe C CXX)
-find_package(SDL2 REQUIRED)
-include_directories(${SDL2_INCLUDE_DIRS})
+add_library(crepe SHARED)
+add_executable(test_main EXCLUDE_FROM_ALL)
+
+target_include_directories(crepe
+ PUBLIC SYSTEM INTERFACE .
+)
+
+# TODO: libraries should be linked as PRIVATE
+target_link_libraries(crepe
+ PUBLIC soloud
+)
+
+add_subdirectory(crepe)
+add_subdirectory(test)
+add_subdirectory(example)
-add_executable(main)
+install(
+ TARGETS crepe
+ FILE_SET HEADERS DESTINATION include/crepe
+)
-target_link_libraries(main ${SDL2_LIBRARIES})
+target_link_libraries(test_main
+ PRIVATE gtest_main
+ PUBLIC crepe
+)
add_subdirectory(crepe) \ No newline at end of file
diff --git a/src/crepe/Asset.cpp b/src/crepe/Asset.cpp
new file mode 100644
index 0000000..15ddc27
--- /dev/null
+++ b/src/crepe/Asset.cpp
@@ -0,0 +1,14 @@
+#include <filesystem>
+
+#include "Asset.h"
+
+using namespace crepe;
+
+Asset::Asset(const std::string & src) {
+ this->src = std::filesystem::canonical(src);
+ this->file = std::ifstream(this->src, std::ios::in | std::ios::binary);
+}
+
+const std::istream & Asset::read() { return this->file; }
+
+const char * Asset::canonical() { return this->src.c_str(); }
diff --git a/src/crepe/Asset.h b/src/crepe/Asset.h
new file mode 100644
index 0000000..0cb5834
--- /dev/null
+++ b/src/crepe/Asset.h
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <fstream>
+#include <iostream>
+#include <string>
+
+namespace crepe {
+
+/**
+ * \brief Asset location helper
+ *
+ * This class is used to locate and canonicalize paths to game asset files, and
+ * should *always* be used when retrieving files from disk.
+ */
+class Asset {
+public:
+ /**
+ * \param src Unique identifier to asset
+ */
+ Asset(const std::string & src);
+
+public:
+ //! Get an input stream to the contents of this resource
+ const std::istream & read();
+ //! Get the canonical path to this resource
+ const char * canonical();
+
+private:
+ std::string src;
+ std::ifstream file;
+};
+
+} // namespace crepe
diff --git a/src/crepe/CMakeLists.txt b/src/crepe/CMakeLists.txt
index 43a3835..c7f18cd 100644
--- a/src/crepe/CMakeLists.txt
+++ b/src/crepe/CMakeLists.txt
@@ -1,9 +1,25 @@
-target_sources(main PUBLIC
- main.cpp
+
+target_sources(crepe PUBLIC
+ Asset.cpp
+ Sound.cpp
+ SoundContext.cpp
+ main.cpp
Particle.cpp
ParticleEmitter.cpp
ParticleSystem.cpp
SDLApp.cpp
)
-target_include_directories(main PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+target_sources(crepe PUBLIC FILE_SET HEADERS FILES
+ Asset.h
+ Sound.h
+ SoundContext.h
+ ParticleEmitter.hpp
+ ParticleSystem.hpp
+ Particle.hpp
+ SDLApp.hpp
+)
+
+add_subdirectory(api)
+add_subdirectory(util)
+
diff --git a/src/crepe/Sound.cpp b/src/crepe/Sound.cpp
new file mode 100644
index 0000000..64fa281
--- /dev/null
+++ b/src/crepe/Sound.cpp
@@ -0,0 +1,60 @@
+#include "util/log.h"
+
+#include "Sound.h"
+#include "SoundContext.h"
+
+using namespace crepe;
+
+Sound::Sound(std::unique_ptr<Asset> res) {
+ dbg_trace();
+ this->load(std::move(res));
+}
+
+Sound::Sound(const char * src) {
+ dbg_trace();
+ this->load(std::make_unique<Asset>(src));
+}
+
+void Sound::load(std::unique_ptr<Asset> res) {
+ this->sample.load(res->canonical());
+}
+
+void Sound::play() {
+ SoundContext & ctx = SoundContext::get_instance();
+ if (ctx.engine.getPause(this->handle)) {
+ // resume if paused
+ ctx.engine.setPause(this->handle, false);
+ } else {
+ // or start new sound
+ this->handle = ctx.engine.play(this->sample, this->volume);
+ ctx.engine.setLooping(this->handle, this->looping);
+ }
+}
+
+void Sound::pause() {
+ SoundContext & ctx = SoundContext::get_instance();
+ if (ctx.engine.getPause(this->handle)) return;
+ ctx.engine.setPause(this->handle, true);
+}
+
+void Sound::rewind() {
+ SoundContext & ctx = SoundContext::get_instance();
+ if (!ctx.engine.isValidVoiceHandle(this->handle)) return;
+ ctx.engine.seek(this->handle, 0);
+}
+
+void Sound::set_volume(float volume) {
+ this->volume = volume;
+
+ SoundContext & ctx = SoundContext::get_instance();
+ if (!ctx.engine.isValidVoiceHandle(this->handle)) return;
+ ctx.engine.setVolume(this->handle, this->volume);
+}
+
+void Sound::set_looping(bool looping) {
+ this->looping = looping;
+
+ SoundContext & ctx = SoundContext::get_instance();
+ if (!ctx.engine.isValidVoiceHandle(this->handle)) return;
+ ctx.engine.setLooping(this->handle, this->looping);
+}
diff --git a/src/crepe/Sound.h b/src/crepe/Sound.h
new file mode 100644
index 0000000..1ac20a7
--- /dev/null
+++ b/src/crepe/Sound.h
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <soloud.h>
+#include <soloud_wav.h>
+
+#include <memory>
+
+#include "Asset.h"
+
+namespace crepe {
+
+class Sound {
+public:
+ /**
+ * \brief Pause this sample
+ *
+ * Pauses this sound if it is playing, or does nothing if it is already
+ * paused. The playhead position is saved, such that calling \c play() after
+ * this function makes the sound resume.
+ */
+ void pause();
+ /**
+ * \brief Play this sample
+ *
+ * Resume playback if this sound is paused, or start from the beginning of
+ * the sample.
+ *
+ * \note This class only saves a reference to the most recent 'voice' of this
+ * sound. Calling \c play() while the sound is already playing causes
+ * multiple instances of the sample to play simultaniously. The sample
+ * started last is the one that is controlled afterwards.
+ */
+ void play();
+ /**
+ * \brief Reset playhead position
+ *
+ * Resets the playhead position so that calling \c play() after this function
+ * makes it play from the start of the sample. If the sound is not paused
+ * before calling this function, this function will stop playback.
+ */
+ void rewind();
+ /**
+ * \brief Set playback volume / gain
+ *
+ * \param volume Volume (0 = muted, 1 = full volume)
+ */
+ void set_volume(float volume);
+ /**
+ * \brief Get playback volume / gain
+ *
+ * \return Volume
+ */
+ float get_volume() const { return this->volume; }
+ /**
+ * \brief Set looping behavior for this sample
+ *
+ * \param looping Looping behavior (false = one-shot, true = loop)
+ */
+ void set_looping(bool looping);
+ /**
+ * \brief Get looping behavior
+ *
+ * \return true if looping, false if one-shot
+ */
+ bool get_looping() const { return this->looping; }
+
+public:
+ Sound(const char * src);
+ Sound(std::unique_ptr<Asset> res);
+
+private:
+ void load(std::unique_ptr<Asset> res);
+
+private:
+ SoLoud::Wav sample;
+ SoLoud::handle handle;
+
+ float volume = 1.0f;
+ bool looping = false;
+};
+
+} // namespace crepe
diff --git a/src/crepe/SoundContext.cpp b/src/crepe/SoundContext.cpp
new file mode 100644
index 0000000..72047d2
--- /dev/null
+++ b/src/crepe/SoundContext.cpp
@@ -0,0 +1,20 @@
+#include "util/log.h"
+
+#include "SoundContext.h"
+
+using namespace crepe;
+
+SoundContext & SoundContext::get_instance() {
+ static SoundContext instance;
+ return instance;
+}
+
+SoundContext::SoundContext() {
+ dbg_trace();
+ engine.init();
+}
+
+SoundContext::~SoundContext() {
+ dbg_trace();
+ engine.deinit();
+}
diff --git a/src/crepe/SoundContext.h b/src/crepe/SoundContext.h
new file mode 100644
index 0000000..090966d
--- /dev/null
+++ b/src/crepe/SoundContext.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <soloud.h>
+
+#include "Sound.h"
+
+namespace crepe {
+
+class SoundContext {
+private:
+ SoundContext();
+ virtual ~SoundContext();
+
+ // singleton
+ static SoundContext & get_instance();
+ SoundContext(const SoundContext &) = delete;
+ SoundContext(SoundContext &&) = delete;
+ SoundContext & operator=(const SoundContext &) = delete;
+ SoundContext & operator=(SoundContext &&) = delete;
+
+private:
+ SoLoud::Soloud engine;
+ friend class Sound;
+};
+
+} // namespace crepe
diff --git a/src/crepe/api/AudioSource.cpp b/src/crepe/api/AudioSource.cpp
new file mode 100644
index 0000000..b512d27
--- /dev/null
+++ b/src/crepe/api/AudioSource.cpp
@@ -0,0 +1,22 @@
+#include "AudioSource.h"
+
+#include "../Sound.h"
+#include <memory>
+
+using namespace crepe::api;
+
+AudioSource::AudioSource(std::unique_ptr<Asset> audio_clip) {
+ this->sound = std::make_unique<crepe::Sound>(std::move(audio_clip));
+}
+
+void AudioSource::play() { return this->play(false); }
+
+void AudioSource::play(bool looping) {
+ this->sound->set_looping(looping);
+ this->sound->play();
+}
+
+void AudioSource::stop() {
+ this->sound->pause();
+ this->sound->rewind();
+}
diff --git a/src/crepe/api/AudioSource.h b/src/crepe/api/AudioSource.h
new file mode 100644
index 0000000..2d26cda
--- /dev/null
+++ b/src/crepe/api/AudioSource.h
@@ -0,0 +1,41 @@
+#pragma once
+
+#include <memory>
+
+#include "Asset.h"
+#include "Component.h"
+
+namespace crepe {
+class Sound;
+}
+
+namespace crepe::api {
+
+//! Audio source component
+class AudioSource : Component {
+public:
+ AudioSource(std::unique_ptr<Asset> audio_clip);
+ virtual ~AudioSource() = default;
+
+public:
+ //! Start or resume this audio source
+ void play();
+ void play(bool looping);
+ //! Stop this audio source
+ void stop();
+
+public:
+ //! Sample file location
+ std::unique_ptr<Asset> audio_clip;
+ //! TODO: ?????
+ bool play_on_awake;
+ //! Repeat the current audio clip during playback
+ bool loop;
+ //! Normalized volume (0.0 - 1.0)
+ float volume;
+
+private:
+ std::unique_ptr<crepe::Sound> sound;
+};
+
+} // namespace crepe::api
diff --git a/src/crepe/api/CMakeLists.txt b/src/crepe/api/CMakeLists.txt
new file mode 100644
index 0000000..9548594
--- /dev/null
+++ b/src/crepe/api/CMakeLists.txt
@@ -0,0 +1,9 @@
+target_sources(crepe PUBLIC
+ # AudioSource.cpp
+)
+
+target_sources(crepe PUBLIC FILE_SET HEADERS FILES
+ AudioSource.h
+ Component.h
+)
+
diff --git a/src/crepe/api/Component.h b/src/crepe/api/Component.h
new file mode 100644
index 0000000..d5e0499
--- /dev/null
+++ b/src/crepe/api/Component.h
@@ -0,0 +1,10 @@
+#pragma once
+
+namespace crepe::api {
+
+class Component {
+public:
+ bool active;
+};
+
+} // namespace crepe::api
diff --git a/src/crepe/util/CMakeLists.txt b/src/crepe/util/CMakeLists.txt
new file mode 100644
index 0000000..100f028
--- /dev/null
+++ b/src/crepe/util/CMakeLists.txt
@@ -0,0 +1,9 @@
+target_sources(crepe PUBLIC
+ log.cpp
+)
+
+target_sources(crepe PUBLIC FILE_SET HEADERS FILES
+ color.h
+ log.h
+)
+
diff --git a/src/crepe/util/color.h b/src/crepe/util/color.h
new file mode 100644
index 0000000..066c9d3
--- /dev/null
+++ b/src/crepe/util/color.h
@@ -0,0 +1,41 @@
+#pragma once
+
+namespace crepe::util::color {
+
+constexpr const char * RESET = "\e[0m";
+
+constexpr const char * FG_BLACK = "\e[30m";
+constexpr const char * FG_RED = "\e[31m";
+constexpr const char * FG_GREEN = "\e[32m";
+constexpr const char * FG_YELLOW = "\e[33m";
+constexpr const char * FG_BLUE = "\e[34m";
+constexpr const char * FG_MAGENTA = "\e[35m";
+constexpr const char * FG_CYAN = "\e[36m";
+constexpr const char * FG_WHITE = "\e[37m";
+constexpr const char * BG_BLACK = "\e[40m";
+constexpr const char * BG_RED = "\e[41m";
+constexpr const char * BG_GREEN = "\e[42m";
+constexpr const char * BG_YELLOW = "\e[43m";
+constexpr const char * BG_BLUE = "\e[44m";
+constexpr const char * BG_MAGENTA = "\e[45m";
+constexpr const char * BG_CYAN = "\e[46m";
+constexpr const char * BG_WHITE = "\e[47m";
+
+constexpr const char * FG_BLACK_BRIGHT = "\e[90m";
+constexpr const char * FG_RED_BRIGHT = "\e[91m";
+constexpr const char * FG_GREEN_BRIGHT = "\e[92m";
+constexpr const char * FG_YELLOW_BRIGHT = "\e[93m";
+constexpr const char * FG_BLUE_BRIGHT = "\e[94m";
+constexpr const char * FG_MAGENTA_BRIGHT = "\e[95m";
+constexpr const char * FG_CYAN_BRIGHT = "\e[96m";
+constexpr const char * FG_WHITE_BRIGHT = "\e[97m";
+constexpr const char * BG_BLACK_BRIGHT = "\e[100m";
+constexpr const char * BG_RED_BRIGHT = "\e[101m";
+constexpr const char * BG_GREEN_BRIGHT = "\e[102m";
+constexpr const char * BG_YELLOW_BRIGHT = "\e[103m";
+constexpr const char * BG_BLUE_BRIGHT = "\e[104m";
+constexpr const char * BG_MAGENTA_BRIGHT = "\e[105m";
+constexpr const char * BG_CYAN_BRIGHT = "\e[106m";
+constexpr const char * BG_WHITE_BRIGHT = "\e[107m";
+
+} // namespace crepe::util::color
diff --git a/src/crepe/util/log.cpp b/src/crepe/util/log.cpp
new file mode 100644
index 0000000..6829ec3
--- /dev/null
+++ b/src/crepe/util/log.cpp
@@ -0,0 +1,50 @@
+#include <cstdarg>
+#include <cstdio>
+#include <cstdlib>
+#include <string>
+
+#include "log.h"
+
+using namespace crepe::util;
+
+static const char * const LOG_PREFIX[] = {
+ [log_level::debug] = "[DBG] ",
+ [log_level::info] = "[INFO] ",
+ [log_level::warning] = "[WARN] ",
+ [log_level::error] = "[ERR] ",
+};
+
+static void va_logf(enum log_level level, va_list args, const std::string fmt) {
+ va_list args_copy;
+ va_copy(args_copy, args);
+
+ // prepend log level and ensure newline
+ std::string format_fixed = LOG_PREFIX[level] + fmt;
+ if (!format_fixed.ends_with("\n")) format_fixed += "\n";
+
+ size_t sz = vsnprintf(NULL, 0, format_fixed.c_str(), args_copy) + 1;
+ char * msg = (char *) malloc(sz);
+ va_end(args_copy);
+
+ vsnprintf(msg, sz, format_fixed.c_str(), args);
+
+ // TODO: also log to file or smth
+ printf("%s", msg);
+ fflush(stdout);
+
+ free(msg);
+}
+
+void crepe::util::logf(const char * fmt, ...) {
+ va_list args;
+ va_start(args, fmt);
+ va_logf(crepe::util::log_level::debug, args, fmt);
+ va_end(args);
+}
+
+void crepe::util::logf(log_level level, const char * fmt, ...) {
+ va_list args;
+ va_start(args, fmt);
+ va_logf(level, args, fmt);
+ va_end(args);
+}
diff --git a/src/crepe/util/log.h b/src/crepe/util/log.h
new file mode 100644
index 0000000..bfe7291
--- /dev/null
+++ b/src/crepe/util/log.h
@@ -0,0 +1,36 @@
+#pragma once
+
+// allow user to disable debug macros
+#ifndef CREPE_DISABLE_MACROS
+
+#include "color.h"
+
+// utility macros
+#define _crepe_logf_here(fmt, ...) \
+ crepe::util::logf(util::log_level::debug, "%s%s (%s:%d)" fmt "\n", \
+ crepe::util::color::FG_WHITE, __PRETTY_FUNCTION__, \
+ __FILE_NAME__, __LINE__, crepe::util::color::RESET, \
+ __VA_ARGS__)
+
+// very illegal global function-style macros
+// NOLINTBEGIN
+#define dbg_logf(fmt, ...) _crepe_logf_here(": " fmt, __VA_ARGS__)
+#define dbg_log(str) _crepe_logf_here(": %s", str)
+#define dbg_trace() _crepe_logf_here("%s", "")
+// NOLINTEND
+
+#endif
+
+namespace crepe::util {
+
+enum log_level {
+ debug,
+ info,
+ warning,
+ error,
+};
+
+void logf(const char * fmt, ...);
+void logf(enum log_level level, const char * fmt, ...);
+
+} // namespace crepe::util
diff --git a/src/example/CMakeLists.txt b/src/example/CMakeLists.txt
new file mode 100644
index 0000000..17e995b
--- /dev/null
+++ b/src/example/CMakeLists.txt
@@ -0,0 +1,6 @@
+add_executable(audio_internal EXCLUDE_FROM_ALL audio_internal.cpp)
+target_link_libraries(audio_internal PUBLIC crepe)
+
+add_executable(particel EXCLUDE_FROM_ALL particel.cpp)
+target_link_libraries(particel PUBLIC crepe)
+
diff --git a/src/example/audio_internal.cpp b/src/example/audio_internal.cpp
new file mode 100644
index 0000000..1199e2d
--- /dev/null
+++ b/src/example/audio_internal.cpp
@@ -0,0 +1,45 @@
+/** \file
+ *
+ * Standalone example for usage of the internal \c Sound class.
+ */
+
+#include <crepe/Sound.h>
+#include <crepe/util/log.h>
+
+#include <chrono>
+#include <thread>
+
+using namespace crepe;
+using namespace std;
+using namespace std::chrono_literals;
+using std::make_unique;
+
+int main() {
+ dbg_trace();
+
+ auto bgm = Sound("../mwe/audio/bgm.ogg");
+ auto sfx1 = Sound("../mwe/audio/sfx1.wav");
+ auto sfx2 = Sound("../mwe/audio/sfx2.wav");
+ auto sfx3 = Sound("../mwe/audio/sfx3.wav");
+
+ bgm.play();
+
+ // play each sample sequentially
+ this_thread::sleep_for(500ms);
+ sfx1.play();
+ this_thread::sleep_for(500ms);
+ sfx2.play();
+ bgm.pause();
+ this_thread::sleep_for(500ms);
+ sfx3.play();
+ bgm.play();
+ this_thread::sleep_for(500ms);
+
+ // play all samples simultaniously
+ sfx1.play();
+ sfx2.play();
+ sfx3.play();
+ this_thread::sleep_for(1000ms);
+
+ return 0;
+}
diff --git a/src/crepe/main.cpp b/src/example/particel.cpp
index 58480a9..58480a9 100644
--- a/src/crepe/main.cpp
+++ b/src/example/particel.cpp
diff --git a/src/makefile b/src/makefile
new file mode 100644
index 0000000..c1ef601
--- /dev/null
+++ b/src/makefile
@@ -0,0 +1,6 @@
+.PHONY: FORCE
+
+FMT += $(shell git ls-files '*.c' '*.cpp' '*.h' '*.hpp')
+format: FORCE
+ clang-tidy -p build/compile_commands.json --fix-errors $(FMT)
+
diff --git a/src/readme.md b/src/readme.md
new file mode 100644
index 0000000..1c5d3a2
--- /dev/null
+++ b/src/readme.md
@@ -0,0 +1,8 @@
+# engine source
+
+This folder contains the crêpe engine source files, unit tests, and some toy
+examples. The only target built by default by the CMakeLists.txt in this folder
+is the crêpe shared library object. Unit tests can be built by explicitly
+specifying the target `test_main` when running the build command. Each source
+file in the example/ folder corresponds to a CMake target as well.
+
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
new file mode 100644
index 0000000..0d316d6
--- /dev/null
+++ b/src/test/CMakeLists.txt
@@ -0,0 +1,5 @@
+target_sources(test_main PUBLIC
+ dummy.cpp
+ # audio.cpp
+)
+
diff --git a/src/test/audio.cpp b/src/test/audio.cpp
new file mode 100644
index 0000000..d6ff689
--- /dev/null
+++ b/src/test/audio.cpp
@@ -0,0 +1,10 @@
+#include <gtest/gtest.h>
+
+using namespace std;
+using namespace std::chrono_literals;
+
+// using namespace crepe;
+
+// TODO: mock internal audio class
+
+TEST(audio, play) { ASSERT_TRUE(true); }
diff --git a/test/dummy.cpp b/src/test/dummy.cpp
index a00a9c6..a00a9c6 100644
--- a/test/dummy.cpp
+++ b/src/test/dummy.cpp
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
deleted file mode 100644
index 26aa460..0000000
--- a/test/CMakeLists.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-cmake_minimum_required(VERSION 3.28)
-
-set(CMAKE_C_STANDARD 11)
-set(CMAKE_CXX_STANDARD 20)
-set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
-
-set(CMAKE_BUILD_TYPE Debug)
-
-project(test C CXX)
-
-add_subdirectory(../lib/googletest googletest)
-
-add_executable(test
- dummy.cpp
-)
-
-target_link_libraries(test
- gtest_main
- # TODO: add crepe engine
-)
-