Initial commit.

.gitignore

@@ -50,3 +50,10 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+
+# Xmake
+.xmake/
+build/
+
+# Clangd
+.cache/

Makefile

@@ -0,0 +1,4 @@
+.PHONY: run
+
+run:
+	xmake && xmake r

compile_commands.json

@@ -0,0 +1,6 @@
+[
+{
+  "directory": "/home/jason/github/c_stuff/rlib_projects/ball_room",
+  "arguments": ["/usr/bin/gcc", "-c", "-m64", "-fvisibility=hidden", "-Wall", "-Werror", "-O3", "-D_DEFAULT_SOURCE", "-D_BSD_SOURCE", "-DHAS_FCHOWN", "-DHAS_STICKY_DIR_BIT", "-isystem", "/home/jason/.xmake/packages/r/raygui/4.0/9d606ceee8cb49559023212a8fb08d54/include", "-isystem", "/home/jason/.xmake/packages/r/raylib/5.0/aeed26e13a7a466f9d7c7ad6dd3b75c2/include", "-DNDEBUG", "-o", "build/.objs/ball_room/linux/x86_64/release/src/main.c.o", "src/main.c"],
+  "file": "src/main.c"
+}]

src/main.c

@@ -0,0 +1,116 @@
+#include "raylib.h"
+#include <stdbool.h>
+
+#define STB_DS_IMPLEMENTATION
+#include "libs/stb_ds.h"
+
+#define WIN_WIDTH 1000.0
+#define WIN_HEIGHT 800.0
+#define BG CLITERAL(Color){0x18, 0x18, 0x18, 0xFF}
+
+// Adjust gravity value for smoother fall
+#define GRAVITY 1000.0f 
+#define MAX_SPEED 16.0f
+
+typedef enum  
+{
+    Circle
+} entity_type;
+
+typedef struct {
+    Vector2 position;
+    Color color;
+    int size;
+    entity_type type;
+} Entity;
+
+typedef struct {
+    bool is_running;
+    Entity* entities;
+} App;
+
+void render_entities(Entity* entities, int count)
+{
+    for (int i = 0; i < count; i++) {
+        switch(entities[i].type)
+        {
+            case Circle:
+                DrawCircle(entities[i].position.x, entities[i].position.y, entities[i].size, entities[i].color);
+                break;
+        }
+    }
+}
+
+void update_entities(Entity* entities, int count, float deltaTime)
+{
+    for (int i = 0; i < count; i++)
+    {
+        // Calculate new position based on gravity and deltaTime
+        float fallSpeed = GRAVITY * deltaTime;
+        // Clamp the fall speed to prevent choppiness
+        if (fallSpeed > MAX_SPEED) fallSpeed = MAX_SPEED;
+
+        // Update the position of each entity
+        if(!(entities[i].position.y >= WIN_HEIGHT - entities[i].size))
+        {
+            entities[i].position.y += fallSpeed;
+        }
+    }
+}
+
+
+int main(void) {
+
+    bool is_paused = false;
+
+    Entity* entity_array = NULL;
+
+    Entity c = {
+        { WIN_WIDTH / 2, 0 },
+        RED,
+        20,
+        Circle
+    };
+    arrput(entity_array,c);
+
+    App my_app = {
+        true,
+        entity_array
+    };
+
+    // raylib begin
+    // ---------------------------------------------
+    
+    SetConfigFlags(FLAG_MSAA_4X_HINT | FLAG_VSYNC_HINT);
+    InitWindow(WIN_WIDTH, WIN_HEIGHT, "Ball Room");
+    SetTargetFPS(60);
+
+    while(!WindowShouldClose())
+    {
+        float dt = GetFrameTime();
+
+        BeginDrawing();
+
+            ClearBackground(BG);
+
+            // Inputs
+            if (IsKeyPressed(KEY_SPACE)) is_paused = !is_paused;
+
+            // Render app
+            render_entities(my_app.entities, arrlen(my_app.entities));
+
+            // Update app
+            if(!is_paused) 
+                update_entities(my_app.entities, arrlen(my_app.entities), dt);
+
+            DrawFPS(10, 10);
+        EndDrawing();
+    }
+
+    // Clean up
+    // ---------------------------------------------
+    
+    arrfree(entity_array);
+    CloseWindow();
+    return 0;
+}

xmake.lua

@@ -0,0 +1,81 @@
+add_rules("mode.debug", "mode.release")
+
+set_warnings("all", "error")
+
+add_requires("raygui")
+
+target("ball_room")
+    set_kind("binary")
+    add_files("src/*.c")
+    add_packages("raygui")
+    add_headerfiles("src/libs/*.h")
+
+--
+-- If you want to known more usage about xmake, please see https://xmake.io
+--
+-- ## FAQ
+--
+-- You can enter the project directory firstly before building project.
+--
+--   $ cd projectdir
+--
+-- 1. How to build project?
+--
+--   $ xmake
+--
+-- 2. How to configure project?
+--
+--   $ xmake f -p [macosx|linux|iphoneos ..] -a [x86_64|i386|arm64 ..] -m [debug|release]
+--
+-- 3. Where is the build output directory?
+--
+--   The default output directory is `./build` and you can configure the output directory.
+--
+--   $ xmake f -o outputdir
+--   $ xmake
+--
+-- 4. How to run and debug target after building project?
+--
+--   $ xmake run [targetname]
+--   $ xmake run -d [targetname]
+--
+-- 5. How to install target to the system directory or other output directory?
+--
+--   $ xmake install
+--   $ xmake install -o installdir
+--
+-- 6. Add some frequently-used compilation flags in xmake.lua
+--
+-- @code
+--    -- add debug and release modes
+--    add_rules("mode.debug", "mode.release")
+--
+--    -- add macro definition
+--    add_defines("NDEBUG", "_GNU_SOURCE=1")
+--
+--    -- set warning all as error
+--    set_warnings("all", "error")
+--
+--    -- set language: c99, c++11
+--    set_languages("c99", "c++11")
+--
+--    -- set optimization: none, faster, fastest, smallest
+--    set_optimize("fastest")
+--
+--    -- add include search directories
+--    add_includedirs("/usr/include", "/usr/local/include")
+--
+--    -- add link libraries and search directories
+--    add_links("tbox")
+--    add_linkdirs("/usr/local/lib", "/usr/lib")
+--
+--    -- add system link libraries
+--    add_syslinks("z", "pthread")
+--
+--    -- add compilation and link flags
+--    add_cxflags("-stdnolib", "-fno-strict-aliasing")
+--    add_ldflags("-L/usr/local/lib", "-lpthread", {force = true})
+--
+-- @endcode
+--
+