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-rw-r--r--src/crepe/Particle.cpp13
-rw-r--r--src/crepe/Particle.h14
-rw-r--r--src/crepe/api/CMakeLists.txt2
-rw-r--r--src/crepe/api/Config.h11
-rw-r--r--src/crepe/api/LoopManager.cpp1
-rw-r--r--src/crepe/api/LoopManager.h4
-rw-r--r--src/crepe/api/ParticleEmitter.cpp7
-rw-r--r--src/crepe/api/ParticleEmitter.h53
-rw-r--r--src/crepe/api/Script.cpp2
-rw-r--r--src/crepe/api/Script.h2
-rw-r--r--src/crepe/api/Text.cpp12
-rw-r--r--src/crepe/api/Text.h66
-rw-r--r--src/crepe/facade/CMakeLists.txt4
-rw-r--r--src/crepe/facade/Font.cpp21
-rw-r--r--src/crepe/facade/Font.h42
-rw-r--r--src/crepe/facade/FontFacade.cpp43
-rw-r--r--src/crepe/facade/FontFacade.h34
-rw-r--r--src/crepe/facade/SDLContext.cpp15
-rw-r--r--src/crepe/facade/SDLContext.h18
-rw-r--r--src/crepe/system/ParticleSystem.cpp89
-rw-r--r--src/crepe/system/ParticleSystem.h22
-rw-r--r--src/crepe/system/RenderSystem.cpp30
-rw-r--r--src/crepe/system/RenderSystem.h10
23 files changed, 400 insertions, 115 deletions
diff --git a/src/crepe/Particle.cpp b/src/crepe/Particle.cpp
index 485a0d4..b340826 100644
--- a/src/crepe/Particle.cpp
+++ b/src/crepe/Particle.cpp
@@ -2,8 +2,8 @@
using namespace crepe;
-void Particle::reset(uint32_t lifespan, const vec2 & position, const vec2 & velocity,
- double angle) {
+void Particle::reset(unsigned int lifespan, const vec2 & position, const vec2 & velocity,
+ float angle) {
// Initialize the particle state
this->time_in_life = 0;
this->lifespan = lifespan;
@@ -15,16 +15,17 @@ void Particle::reset(uint32_t lifespan, const vec2 & position, const vec2 & velo
this->force_over_time = {0, 0};
}
-void Particle::update() {
+void Particle::update(double dt) {
// Deactivate particle if it has exceeded its lifespan
- if (++time_in_life >= lifespan) {
+ time_in_life += dt;
+ if (time_in_life >= lifespan) {
this->active = false;
return;
}
// Update velocity based on accumulated force and update position
- this->velocity += force_over_time;
- this->position += velocity;
+ this->velocity += force_over_time * dt;
+ this->position += velocity * dt;
}
void Particle::stop_movement() {
diff --git a/src/crepe/Particle.h b/src/crepe/Particle.h
index d0397c9..ee0cd66 100644
--- a/src/crepe/Particle.h
+++ b/src/crepe/Particle.h
@@ -14,8 +14,6 @@ namespace crepe {
* can also be reset or stopped.
*/
class Particle {
- // TODO: add friend particleSsytem and rendersystem. Unit test will fail.
-
public:
//! Position of the particle in 2D space.
vec2 position;
@@ -24,13 +22,13 @@ public:
//! Accumulated force affecting the particle over time.
vec2 force_over_time;
//! Total lifespan of the particle in milliseconds.
- uint32_t lifespan;
+ float lifespan;
//! Active state of the particle; true if it is in use, false otherwise.
bool active = false;
//! The time the particle has been alive, in milliseconds.
- uint32_t time_in_life = 0;
+ float time_in_life = 0;
//! The angle at which the particle is oriented or moving.
- double angle = 0;
+ float angle = 0;
/**
* \brief Resets the particle with new properties.
@@ -43,14 +41,16 @@ public:
* \param velocity The initial velocity of the particle.
* \param angle The angle of the particle's trajectory or orientation.
*/
- void reset(uint32_t lifespan, const vec2 & position, const vec2 & velocity, double angle);
+ void reset(unsigned int lifespan, const vec2 & position, const vec2 & velocity,
+ float angle);
/**
* \brief Updates the particle's state.
*
* Advances the particle's position based on its velocity and applies accumulated forces.
* Deactivates the particle if its lifespan has expired.
+ * \param dt The amount of fixed delta time that has passed.
*/
- void update();
+ void update(double dt);
/**
* \brief Stops the particle's movement.
*
diff --git a/src/crepe/api/CMakeLists.txt b/src/crepe/api/CMakeLists.txt
index 8f84f06..e8d6f92 100644
--- a/src/crepe/api/CMakeLists.txt
+++ b/src/crepe/api/CMakeLists.txt
@@ -20,6 +20,7 @@ target_sources(crepe PUBLIC
Button.cpp
UIObject.cpp
AI.cpp
+ Text.cpp
Scene.cpp
)
@@ -51,4 +52,5 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
Button.h
UIObject.h
AI.h
+ Text.h
)
diff --git a/src/crepe/api/Config.h b/src/crepe/api/Config.h
index ed1cf38..6b9e3ca 100644
--- a/src/crepe/api/Config.h
+++ b/src/crepe/api/Config.h
@@ -76,6 +76,17 @@ struct Config final {
*/
std::string root_pattern = ".crepe-root";
} asset;
+ //! Default font options
+ struct {
+ /**
+ * \brief Default font size
+ *
+ * Using the SDL_ttf library the font size needs to be set when loading the font.
+ * This config option is the font size at which all fonts will be loaded initially.
+ *
+ */
+ unsigned int size = 16;
+ } font;
//! Configuration for click tolerance.
struct {
//! The maximum number of pixels the mouse can move between MouseDown and MouseUp events to be considered a click.
diff --git a/src/crepe/api/LoopManager.cpp b/src/crepe/api/LoopManager.cpp
index b5e5ff7..7a78019 100644
--- a/src/crepe/api/LoopManager.cpp
+++ b/src/crepe/api/LoopManager.cpp
@@ -65,6 +65,7 @@ void LoopManager::fixed_update() {
this->get_system<InputSystem>().update();
this->event_manager.dispatch_events();
this->get_system<ScriptSystem>().update();
+ this->get_system<ParticleSystem>().update();
this->get_system<AISystem>().update();
this->get_system<PhysicsSystem>().update();
this->get_system<CollisionSystem>().update();
diff --git a/src/crepe/api/LoopManager.h b/src/crepe/api/LoopManager.h
index 40e6b38..1d23cbf 100644
--- a/src/crepe/api/LoopManager.h
+++ b/src/crepe/api/LoopManager.h
@@ -72,6 +72,8 @@ private:
//! Global context
Mediator mediator;
+ //! SDLContext instance
+ SDLContext sdl_context{mediator};
//! Component manager instance
ComponentManager component_manager{mediator};
//! Scene manager instance
@@ -84,8 +86,6 @@ private:
ResourceManager resource_manager{mediator};
//! Save manager instance
SaveManager save_manager{mediator};
- //! SDLContext instance
- SDLContext sdl_context{mediator};
private:
/**
diff --git a/src/crepe/api/ParticleEmitter.cpp b/src/crepe/api/ParticleEmitter.cpp
index 90b77a0..4f54bbd 100644
--- a/src/crepe/api/ParticleEmitter.cpp
+++ b/src/crepe/api/ParticleEmitter.cpp
@@ -1,11 +1,14 @@
#include "ParticleEmitter.h"
+#include "api/Sprite.h"
using namespace crepe;
-ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Data & data)
+ParticleEmitter::ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite,
+ const Data & data)
: Component(game_object_id),
+ sprite(sprite),
data(data) {
for (size_t i = 0; i < this->data.max_particles; i++) {
- this->data.particles.emplace_back();
+ this->particles.emplace_back();
}
}
diff --git a/src/crepe/api/ParticleEmitter.h b/src/crepe/api/ParticleEmitter.h
index b83fd61..8ac2e72 100644
--- a/src/crepe/api/ParticleEmitter.h
+++ b/src/crepe/api/ParticleEmitter.h
@@ -1,7 +1,11 @@
#pragma once
+#include <cmath>
#include <vector>
+#include "system/ParticleSystem.h"
+#include "system/RenderSystem.h"
+
#include "Component.h"
#include "Particle.h"
#include "types.h"
@@ -26,15 +30,18 @@ public:
*/
struct Boundary {
//! boundary width (midpoint is emitter location)
- double width = 0.0;
+ float width = INFINITY;
//! boundary height (midpoint is emitter location)
- double height = 0.0;
+ float height = INFINITY;
//! boundary offset from particle emitter location
vec2 offset;
//! reset on exit or stop velocity and set max postion
bool reset_on_exit = false;
};
+ //! sprite reference of displayed sprite
+ const Sprite & sprite;
+
/**
* \brief Holds parameters that control particle emission.
*
@@ -42,32 +49,28 @@ public:
* and the sprite used for rendering particles.
*/
struct Data {
- //! position of the emitter
- vec2 position;
+ //! offset of the emitter relative to transform
+ vec2 offset;
//! maximum number of particles
- const unsigned int max_particles = 0;
- //! rate of particle emission per update (Lowest value = 0.001 any lower is ignored)
- double emission_rate = 0;
+ const unsigned int max_particles = 256;
+ //! rate of particle emission per second
+ float emission_rate = 50;
//! min speed of the particles
- double min_speed = 0;
+ float min_speed = 100;
//! min speed of the particles
- double max_speed = 0;
+ float max_speed = 100;
//! min angle of particle emission
- double min_angle = 0;
+ float min_angle = 0;
//! max angle of particle emission
- double max_angle = 0;
- //! begin Lifespan of particle (only visual)
- double begin_lifespan = 0.0;
- //! end Lifespan of particle
- double end_lifespan = 0.0;
+ float max_angle = 0;
+ //! begin Lifespan of particle in seconds (only visual)
+ float begin_lifespan = 0.0;
+ //! end Lifespan of particle in seconds
+ float end_lifespan = 10.0;
//! force over time (physics)
vec2 force_over_time;
//! particle boundary
Boundary boundary;
- //! collection of particles
- std::vector<Particle> particles;
- //! sprite reference
- const Sprite & sprite;
};
public:
@@ -75,11 +78,21 @@ public:
* \param game_object_id Identifier for the game object using this emitter.
* \param data Configuration data defining particle properties.
*/
- ParticleEmitter(game_object_id_t game_object_id, const Data & data);
+ ParticleEmitter(game_object_id_t game_object_id, const Sprite & sprite, const Data & data);
public:
//! Configuration data for particle emission settings.
Data data;
+
+private:
+ //! Only ParticleSystem can move and read particles
+ friend ParticleSystem;
+ //! Only RenderSystem can read particles
+ friend RenderSystem;
+ //! Saves time left over from last update event.
+ float spawn_accumulator = 0;
+ //! collection of particles
+ std::vector<Particle> particles;
};
} // namespace crepe
diff --git a/src/crepe/api/Script.cpp b/src/crepe/api/Script.cpp
index d4eaae9..583c04f 100644
--- a/src/crepe/api/Script.cpp
+++ b/src/crepe/api/Script.cpp
@@ -31,7 +31,7 @@ const keyboard_state_t & Script::get_keyboard_state() const {
return sdl_context.get_keyboard_state();
}
-bool Script::get_key_state(Keycode key) const {
+bool Script::get_key_state(Keycode key) const noexcept {
try {
return this->get_keyboard_state().at(key);
} catch (...) {
diff --git a/src/crepe/api/Script.h b/src/crepe/api/Script.h
index b5d3dd2..65306cd 100644
--- a/src/crepe/api/Script.h
+++ b/src/crepe/api/Script.h
@@ -150,7 +150,7 @@ protected:
* \return Keycode state (true if pressed, false if not pressed).
*
*/
- bool get_key_state(Keycode key) const;
+ bool get_key_state(Keycode key) const noexcept;
//! \}
private:
diff --git a/src/crepe/api/Text.cpp b/src/crepe/api/Text.cpp
new file mode 100644
index 0000000..54a4370
--- /dev/null
+++ b/src/crepe/api/Text.cpp
@@ -0,0 +1,12 @@
+#include "../facade/FontFacade.h"
+
+#include "Text.h"
+
+using namespace crepe;
+
+Text::Text(game_object_id_t id, const vec2 & dimensions, const vec2 & offset,
+ const std::string & font_family, const Data & data, const std::string & text)
+ : UIObject(id, dimensions, offset),
+ text(text),
+ data(data),
+ font_family(font_family) {}
diff --git a/src/crepe/api/Text.h b/src/crepe/api/Text.h
new file mode 100644
index 0000000..c30dc80
--- /dev/null
+++ b/src/crepe/api/Text.h
@@ -0,0 +1,66 @@
+#pragma once
+
+#include <optional>
+#include <string>
+
+#include "../Component.h"
+
+#include "Asset.h"
+#include "Color.h"
+#include "UIObject.h"
+
+namespace crepe {
+/**
+ * \brief Text UIObject component for displaying text
+ *
+ * This class can be used to display text on screen. By setting the font_family to a font already stored on the current device it will automatically be loaded in.
+ */
+class Text : public UIObject {
+public:
+ //! Text data that does not have to be set in the constructor
+ struct Data {
+ /**
+ * \brief fontsize for text rendering
+ *
+ * \note this is not the actual font size that is loaded in.
+ *
+ * Since SDL_TTF requires the font size when loading in the font it is not possible to switch the font size.
+ * The default font size that is loaded is set in the Config.
+ * Instead this value is used to upscale the font texture which can cause blurring or distorted text when upscaling or downscaling too much.
+ */
+ unsigned int font_size = 16;
+
+ //! Layer sorting level of the text
+ const int sorting_in_layer = 0;
+
+ //! Order within the sorting text
+ const int order_in_layer = 0;
+
+ //! Label text color.
+ Color text_color = Color::BLACK;
+ };
+
+public:
+ /**
+ *
+ * \param dimensions Width and height of the UIObject.
+ * \param offset Offset of the UIObject relative to its transform
+ * \param text The text to be displayed.
+ * \param font_family The font style name to be displayed.
+ * \param data Data struct containing extra text parameters.
+ * \param font Optional font asset that can be passed or left empty.
+ */
+ Text(game_object_id_t id, const vec2 & dimensions, const vec2 & offset,
+ const std::string & font_family, const Data & data, const std::string & text = "");
+
+ //! Label text.
+ std::string text = "";
+ //! font family name
+ std::string font_family = "";
+ //! Font asset variable if this is not set, it will use the font_family to create an asset.
+ std::optional<Asset> font;
+ //! Data instance
+ Data data;
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/CMakeLists.txt b/src/crepe/facade/CMakeLists.txt
index 0598e16..243ae46 100644
--- a/src/crepe/facade/CMakeLists.txt
+++ b/src/crepe/facade/CMakeLists.txt
@@ -4,6 +4,8 @@ target_sources(crepe PUBLIC
SoundContext.cpp
SDLContext.cpp
DB.cpp
+ FontFacade.cpp
+ Font.cpp
)
target_sources(crepe PUBLIC FILE_SET HEADERS FILES
@@ -12,5 +14,7 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
SoundContext.h
SDLContext.h
DB.h
+ FontFacade.h
+ Font.h
)
diff --git a/src/crepe/facade/Font.cpp b/src/crepe/facade/Font.cpp
new file mode 100644
index 0000000..771002f
--- /dev/null
+++ b/src/crepe/facade/Font.cpp
@@ -0,0 +1,21 @@
+#include <SDL2/SDL_ttf.h>
+
+#include "../api/Asset.h"
+#include "../api/Config.h"
+
+#include "Font.h"
+
+using namespace std;
+using namespace crepe;
+
+Font::Font(const Asset & src, Mediator & mediator) : Resource(src, mediator) {
+ const Config & config = Config::get_instance();
+ const std::string FONT_PATH = src.get_path();
+ TTF_Font * loaded_font = TTF_OpenFont(FONT_PATH.c_str(), config.font.size);
+ if (loaded_font == NULL) {
+ throw runtime_error(format("Font: {} (path: {})", TTF_GetError(), FONT_PATH));
+ }
+ this->font = {loaded_font, [](TTF_Font * close_font) { TTF_CloseFont(close_font); }};
+}
+
+TTF_Font * Font::get_font() const { return this->font.get(); }
diff --git a/src/crepe/facade/Font.h b/src/crepe/facade/Font.h
new file mode 100644
index 0000000..b208d96
--- /dev/null
+++ b/src/crepe/facade/Font.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <SDL2/SDL_ttf.h>
+#include <memory>
+
+#include "../Resource.h"
+#include "../api/Config.h"
+
+namespace crepe {
+
+class Asset;
+/**
+ * \brief Resource for managing font creation and destruction
+ *
+ * This class is a wrapper around an SDL_ttf font instance, encapsulating font loading and usage.
+ * It loads a font from an Asset and manages its lifecycle. The font is automatically unloaded
+ * when this object is destroyed.
+ */
+class Font : public Resource {
+
+public:
+ /**
+ * \param src The Asset containing the font file path and metadata to load the font.
+ * \param mediator The Mediator object used for managing the SDL context or related systems.
+ */
+ Font(const Asset & src, Mediator & mediator);
+ /**
+ * \brief Gets the underlying TTF_Font resource.
+ *
+ * This function returns the raw pointer to the SDL_ttf TTF_Font object that represents
+ * the loaded font. This can be used with SDL_ttf functions to render text.
+ *
+ * \return The raw TTF_Font object wrapped in a unique pointer.
+ */
+ TTF_Font * get_font() const;
+
+private:
+ //! The SDL_ttf font object with custom deleter.
+ std::unique_ptr<TTF_Font, std::function<void(TTF_Font *)>> font = nullptr;
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/FontFacade.cpp b/src/crepe/facade/FontFacade.cpp
new file mode 100644
index 0000000..87f95ab
--- /dev/null
+++ b/src/crepe/facade/FontFacade.cpp
@@ -0,0 +1,43 @@
+#include <fontconfig/fontconfig.h>
+#include <functional>
+#include <memory>
+#include <stdexcept>
+#include <string>
+
+#include "FontFacade.h"
+
+using namespace std;
+using namespace crepe;
+
+FontFacade::FontFacade() {
+ if (!FcInit()) throw runtime_error("Failed to initialize Fontconfig.");
+}
+
+FontFacade::~FontFacade() { FcFini(); }
+
+Asset FontFacade::get_font_asset(const string & font_family) {
+ FcPattern * raw_pattern
+ = FcNameParse(reinterpret_cast<const FcChar8 *>(font_family.c_str()));
+ if (raw_pattern == NULL) throw runtime_error("Failed to create font pattern.");
+
+ unique_ptr<FcPattern, function<void(FcPattern *)>> pattern{
+ raw_pattern, [](FcPattern * p) { FcPatternDestroy(p); }};
+
+ FcConfig * config = FcConfigGetCurrent();
+ if (config == NULL) throw runtime_error("Failed to get current Fontconfig configuration.");
+
+ FcResult result;
+ FcPattern * raw_matched_pattern = FcFontMatch(config, pattern.get(), &result);
+ if (raw_matched_pattern == NULL) throw runtime_error("No matching font found.");
+
+ unique_ptr<FcPattern, function<void(FcPattern *)>> matched_pattern
+ = {raw_matched_pattern, [](FcPattern * p) { FcPatternDestroy(p); }};
+
+ FcChar8 * file_path = nullptr;
+ FcResult res = FcPatternGetString(matched_pattern.get(), FC_FILE, 0, &file_path);
+ if (res != FcResultMatch || file_path == NULL)
+ throw runtime_error("Failed to get font file path.");
+
+ string font_file_path = reinterpret_cast<const char *>(file_path);
+ return Asset(font_file_path);
+}
diff --git a/src/crepe/facade/FontFacade.h b/src/crepe/facade/FontFacade.h
new file mode 100644
index 0000000..9761070
--- /dev/null
+++ b/src/crepe/facade/FontFacade.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include <memory>
+
+#include "../api/Asset.h"
+
+namespace crepe {
+
+/**
+ *
+ * \brief Font facade class for converting font family names to absolute file paths
+ *
+ */
+class FontFacade {
+public:
+ FontFacade();
+ ~FontFacade();
+ FontFacade(const FontFacade & other) = delete;
+ FontFacade & operator=(const FontFacade & other) = delete;
+ FontFacade(FontFacade && other) noexcept = delete;
+ FontFacade & operator=(FontFacade && other) noexcept = delete;
+ /**
+ *
+ * \brief Facade function to convert a font_family into an asset.
+ *
+ * This function uses the FontConfig library to convert a font family name (Arial, Inter, Helvetica) and converts it to the font source path.
+ * This function returns a default font path if the font_family name doesnt exist or cant be found
+ * \param font_family Name of the font family name.
+ * \return Asset with filepath to the corresponding font.
+ */
+ Asset get_font_asset(const std::string & font_family);
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index 7ccc243..fffbe34 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -6,6 +6,8 @@
#include <SDL2/SDL_rect.h>
#include <SDL2/SDL_render.h>
#include <SDL2/SDL_surface.h>
+#include <SDL2/SDL_ttf.h>
+#include <SDL2/SDL_video.h>
#include <array>
#include <cmath>
#include <cstddef>
@@ -30,6 +32,9 @@ using namespace std;
SDLContext::SDLContext(Mediator & mediator) {
dbg_trace();
+ if (TTF_Init() == -1) {
+ throw runtime_error(format("SDL_ttf initialization failed: {}", TTF_GetError()));
+ }
if (SDL_Init(SDL_INIT_VIDEO) != 0) {
throw runtime_error(format("SDLContext: SDL_Init error: {}", SDL_GetError()));
}
@@ -71,13 +76,13 @@ SDLContext::~SDLContext() {
// thread that SDL_Init() was called on? This has caused problems for me
// before.
IMG_Quit();
+ TTF_Quit();
SDL_Quit();
}
Keycode SDLContext::sdl_to_keycode(SDL_Scancode sdl_key) {
- if (!LOOKUP_TABLE.contains(sdl_key)) return Keycode::NONE;
-
- return LOOKUP_TABLE.at(sdl_key);
+ if (!lookup_table.contains(sdl_key)) return Keycode::NONE;
+ return lookup_table.at(sdl_key);
}
const keyboard_state_t & SDLContext::get_keyboard_state() {
@@ -408,3 +413,7 @@ void SDLContext::set_color_texture(const Texture & texture, const Color & color)
SDL_SetTextureColorMod(texture.get_img(), color.r, color.g, color.b);
SDL_SetTextureAlphaMod(texture.get_img(), color.a);
}
+
+Asset SDLContext::get_font_from_name(const std::string & font_family) {
+ return this->font_facade.get_font_asset(font_family);
+}
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index 8f4760e..b687f87 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -17,8 +17,10 @@
#include "api/KeyCodes.h"
#include "api/Sprite.h"
#include "api/Transform.h"
+#include "types.h"
#include "EventData.h"
+#include "FontFacade.h"
namespace crepe {
class Texture;
@@ -242,10 +244,24 @@ private:
CameraAuxiliaryData cam_aux_data;
private:
+ //! instance of the font_facade
+ FontFacade font_facade{};
+
+public:
+ /**
+ * \brief Function to Get asset from font_family
+ *
+ * This function uses the FontFacade function to convert a font_family to an asset.
+ *
+ * \param font_family name of the font style that needs to be used (will return an asset with default font path of the font_family doesnt exist)
+ *
+ * \return asset with the font style absolute path
+ */
+ Asset get_font_from_name(const std::string & font_family);
//! variable to store the state of each key (true = pressed, false = not pressed)
keyboard_state_t keyboard_state;
//! lookup table for converting SDL_SCANCODES to Keycodes
- const std::unordered_map<SDL_Scancode, Keycode> LOOKUP_TABLE
+ const std::unordered_map<SDL_Scancode, Keycode> lookup_table
= {{SDL_SCANCODE_SPACE, Keycode::SPACE},
{SDL_SCANCODE_APOSTROPHE, Keycode::APOSTROPHE},
{SDL_SCANCODE_COMMA, Keycode::COMMA},
diff --git a/src/crepe/system/ParticleSystem.cpp b/src/crepe/system/ParticleSystem.cpp
index b14c52f..35a1d41 100644
--- a/src/crepe/system/ParticleSystem.cpp
+++ b/src/crepe/system/ParticleSystem.cpp
@@ -1,3 +1,4 @@
+#include <chrono>
#include <cmath>
#include <cstdlib>
#include <ctime>
@@ -5,6 +6,7 @@
#include "../api/ParticleEmitter.h"
#include "../api/Transform.h"
#include "../manager/ComponentManager.h"
+#include "../manager/LoopTimerManager.h"
#include "ParticleSystem.h"
@@ -12,7 +14,11 @@ using namespace crepe;
void ParticleSystem::update() {
// Get all emitters
- ComponentManager & mgr = this->mediator.component_manager;
+ const Mediator & mediator = this->mediator;
+ LoopTimerManager & loop_timer = mediator.loop_timer;
+ ComponentManager & mgr = mediator.component_manager;
+ float dt = loop_timer.get_scaled_fixed_delta_time().count();
+
RefVector<ParticleEmitter> emitters = mgr.get_components_by_type<ParticleEmitter>();
for (ParticleEmitter & emitter : emitters) {
@@ -21,38 +27,39 @@ void ParticleSystem::update() {
= mgr.get_components_by_id<Transform>(emitter.game_object_id).front().get();
// Emit particles based on emission_rate
- int updates = calculate_update(this->update_count, emitter.data.emission_rate);
- for (size_t i = 0; i < updates; i++) {
- emit_particle(emitter, transform);
+ emitter.spawn_accumulator += emitter.data.emission_rate * dt;
+ while (emitter.spawn_accumulator >= 1.0) {
+ this->emit_particle(emitter, transform);
+ emitter.spawn_accumulator -= 1.0;
}
// Update all particles
- for (Particle & particle : emitter.data.particles) {
+ for (Particle & particle : emitter.particles) {
if (particle.active) {
- particle.update();
+ particle.update(dt);
}
}
// Check if within boundary
- check_bounds(emitter, transform);
+ this->check_bounds(emitter, transform);
}
-
- this->update_count = (this->update_count + 1) % this->MAX_UPDATE_COUNT;
}
void ParticleSystem::emit_particle(ParticleEmitter & emitter, const Transform & transform) {
constexpr float DEG_TO_RAD = M_PI / 180.0;
- vec2 initial_position = emitter.data.position + transform.position;
- float random_angle = generate_random_angle(emitter.data.min_angle, emitter.data.max_angle);
+ vec2 initial_position = emitter.data.offset + transform.position;
+ float random_angle
+ = this->generate_random_angle(emitter.data.min_angle, emitter.data.max_angle);
- float random_speed = generate_random_speed(emitter.data.min_speed, emitter.data.max_speed);
+ float random_speed
+ = this->generate_random_speed(emitter.data.min_speed, emitter.data.max_speed);
float angle_radians = random_angle * DEG_TO_RAD;
vec2 velocity
= {random_speed * std::cos(angle_radians), random_speed * std::sin(angle_radians)};
- for (Particle & particle : emitter.data.particles) {
+ for (Particle & particle : emitter.particles) {
if (!particle.active) {
particle.reset(emitter.data.end_lifespan, initial_position, velocity,
random_angle);
@@ -61,66 +68,54 @@ void ParticleSystem::emit_particle(ParticleEmitter & emitter, const Transform &
}
}
-int ParticleSystem::calculate_update(int count, double emission) const {
- double integer_part = std::floor(emission);
- double fractional_part = emission - integer_part;
-
- if (fractional_part > 0) {
- int denominator = static_cast<int>(1.0 / fractional_part);
- return (count % denominator == 0) ? 1 : 0;
- }
-
- return static_cast<int>(emission);
-}
-
void ParticleSystem::check_bounds(ParticleEmitter & emitter, const Transform & transform) {
- vec2 offset = emitter.data.boundary.offset + transform.position + emitter.data.position;
- double half_width = emitter.data.boundary.width / 2.0;
- double half_height = emitter.data.boundary.height / 2.0;
+ vec2 offset = emitter.data.boundary.offset + transform.position + emitter.data.offset;
+ float half_width = emitter.data.boundary.width / 2.0;
+ float half_height = emitter.data.boundary.height / 2.0;
- const double LEFT = offset.x - half_width;
- const double RIGHT = offset.x + half_width;
- const double TOP = offset.y - half_height;
- const double BOTTOM = offset.y + half_height;
+ float left = offset.x - half_width;
+ float right = offset.x + half_width;
+ float top = offset.y - half_height;
+ float bottom = offset.y + half_height;
- for (Particle & particle : emitter.data.particles) {
+ for (Particle & particle : emitter.particles) {
const vec2 & position = particle.position;
- bool within_bounds = (position.x >= LEFT && position.x <= RIGHT && position.y >= TOP
- && position.y <= BOTTOM);
-
+ bool within_bounds = (position.x >= left && position.x <= right && position.y >= top
+ && position.y <= bottom);
+ //if not within bounds do a reset or stop velocity
if (!within_bounds) {
if (emitter.data.boundary.reset_on_exit) {
particle.active = false;
} else {
particle.velocity = {0, 0};
- if (position.x < LEFT) particle.position.x = LEFT;
- else if (position.x > RIGHT) particle.position.x = RIGHT;
- if (position.y < TOP) particle.position.y = TOP;
- else if (position.y > BOTTOM) particle.position.y = BOTTOM;
+ if (position.x < left) particle.position.x = left;
+ else if (position.x > right) particle.position.x = right;
+ if (position.y < top) particle.position.y = top;
+ else if (position.y > bottom) particle.position.y = bottom;
}
}
}
}
-double ParticleSystem::generate_random_angle(double min_angle, double max_angle) const {
+float ParticleSystem::generate_random_angle(float min_angle, float max_angle) const {
if (min_angle == max_angle) {
return min_angle;
} else if (min_angle < max_angle) {
return min_angle
- + static_cast<double>(std::rand() % static_cast<int>(max_angle - min_angle));
+ + static_cast<float>(std::rand() % static_cast<int>(max_angle - min_angle));
} else {
- double angle_offset = (360 - min_angle) + max_angle;
- double random_angle
- = min_angle + static_cast<double>(std::rand() % static_cast<int>(angle_offset));
+ float angle_offset = (360 - min_angle) + max_angle;
+ float random_angle
+ = min_angle + static_cast<float>(std::rand() % static_cast<int>(angle_offset));
return (random_angle >= 360) ? random_angle - 360 : random_angle;
}
}
-double ParticleSystem::generate_random_speed(double min_speed, double max_speed) const {
+float ParticleSystem::generate_random_speed(float min_speed, float max_speed) const {
if (min_speed == max_speed) {
return min_speed;
} else {
return min_speed
- + static_cast<double>(std::rand() % static_cast<int>(max_speed - min_speed));
+ + static_cast<float>(std::rand() % static_cast<int>(max_speed - min_speed));
}
}
diff --git a/src/crepe/system/ParticleSystem.h b/src/crepe/system/ParticleSystem.h
index 068f01c..154521d 100644
--- a/src/crepe/system/ParticleSystem.h
+++ b/src/crepe/system/ParticleSystem.h
@@ -32,16 +32,6 @@ private:
void emit_particle(ParticleEmitter & emitter, const Transform & transform);
/**
- * \brief Calculates the number of times particles should be emitted based on emission rate
- * and update count.
- *
- * \param count Current update count.
- * \param emission Emission rate.
- * \return The number of particles to emit.
- */
- int calculate_update(int count, double emission) const;
-
- /**
* \brief Checks whether particles are within the emitter’s boundary, resets or stops
* particles if they exit.
*
@@ -57,7 +47,7 @@ private:
* \param max_angle Maximum emission angle in degrees.
* \return Random angle in degrees.
*/
- double generate_random_angle(double min_angle, double max_angle) const;
+ float generate_random_angle(float min_angle, float max_angle) const;
/**
* \brief Generates a random speed for particle emission within the specified range.
@@ -66,15 +56,7 @@ private:
* \param max_speed Maximum emission speed.
* \return Random speed.
*/
- double generate_random_speed(double min_speed, double max_speed) const;
-
-private:
- //! Counter to count updates to determine how many times emit_particle is
- // called.
- unsigned int update_count = 0;
- //! Determines the lowest amount of emission rate (1000 = 0.001 = 1 particle per 1000
- // updates).
- static constexpr unsigned int MAX_UPDATE_COUNT = 100;
+ float generate_random_speed(float min_speed, float max_speed) const;
};
} // namespace crepe
diff --git a/src/crepe/system/RenderSystem.cpp b/src/crepe/system/RenderSystem.cpp
index afd9548..62d42ec 100644
--- a/src/crepe/system/RenderSystem.cpp
+++ b/src/crepe/system/RenderSystem.cpp
@@ -2,13 +2,16 @@
#include <cassert>
#include <cmath>
#include <functional>
+#include <optional>
#include <stdexcept>
#include <vector>
#include "../api/Camera.h"
#include "../api/ParticleEmitter.h"
#include "../api/Sprite.h"
+#include "../api/Text.h"
#include "../api/Transform.h"
+#include "../facade/Font.h"
#include "../facade/SDLContext.h"
#include "../facade/Texture.h"
#include "../manager/ComponentManager.h"
@@ -83,11 +86,11 @@ bool RenderSystem::render_particle(const Sprite & sprite, const double & scale)
bool rendering_particles = false;
for (const ParticleEmitter & em : emitters) {
- if (&em.data.sprite != &sprite) continue;
+ if (&em.sprite != &sprite) continue;
rendering_particles = true;
if (!em.active) continue;
- for (const Particle & p : em.data.particles) {
+ for (const Particle & p : em.particles) {
if (!p.active) continue;
ctx.draw(SDLContext::RenderContext{
@@ -120,8 +123,14 @@ void RenderSystem::render() {
this->update_camera();
RefVector<Sprite> sprites = mgr.get_components_by_type<Sprite>();
+ ResourceManager & resource_manager = this->mediator.resource_manager;
RefVector<Sprite> sorted_sprites = this->sort(sprites);
-
+ RefVector<Text> text_components = mgr.get_components_by_type<Text>();
+ for (Text & text : text_components) {
+ const Transform & transform
+ = mgr.get_components_by_id<Transform>(text.game_object_id).front().get();
+ this->render_text(text, transform);
+ }
for (const Sprite & sprite : sorted_sprites) {
if (!sprite.active) continue;
const Transform & transform
@@ -134,3 +143,18 @@ void RenderSystem::render() {
this->render_normal(sprite, transform);
}
}
+void RenderSystem::render_text(Text & text, const Transform & tm) {
+ SDLContext & ctx = this->mediator.sdl_context;
+
+ if (!text.font.has_value()) {
+ text.font.emplace(ctx.get_font_from_name(text.font_family));
+ }
+
+ ResourceManager & resource_manager = this->mediator.resource_manager;
+
+ if (!text.font.has_value()) {
+ return;
+ }
+ const Asset & font_asset = text.font.value();
+ const Font & res = resource_manager.get<Font>(font_asset);
+}
diff --git a/src/crepe/system/RenderSystem.h b/src/crepe/system/RenderSystem.h
index fc7b46e..56a0553 100644
--- a/src/crepe/system/RenderSystem.h
+++ b/src/crepe/system/RenderSystem.h
@@ -10,7 +10,7 @@ namespace crepe {
class Camera;
class Sprite;
class Transform;
-
+class Text;
/**
* \brief Manages rendering operations for all game objects.
*
@@ -50,7 +50,13 @@ private:
* \return true if particles have been rendered
*/
bool render_particle(const Sprite & sprite, const double & scale);
-
+ /**
+ * \brief Renders all Text components
+ *
+ * \param text The text component to be rendered.
+ * \param tm the Transform component that holds the position,rotation and scale
+ */
+ void render_text(Text & text, const Transform & tm);
/**
* \brief renders a sprite with a Transform component on the screen
*