integrate imgui

build.zig

@@ -45,6 +45,63 @@ pub fn build(b: *std.Build) !void {
     const incbin_dep = b.dependency("incbin", .{});
     mod.addIncludePath(incbin_dep.path("."));
 
+    {
+        const imgui_mod = b.createModule(.{
+            .target = target,
+            .optimize = optimize,
+            .link_libcpp = true,
+        });
+
+        const imgui = b.dependency("imgui", .{});
+        imgui_mod.addCSourceFiles(.{
+            .root = imgui.path("."),
+            .files = &.{
+                "imgui.cpp",
+                "imgui_demo.cpp",
+                "imgui_draw.cpp",
+                "imgui_tables.cpp",
+                "imgui_widgets.cpp",
+            },
+            .flags = &.{
+                "-fno-sanitize=undefined",
+                "-std=c++11",
+                "-Wno-deprecated-declarations",
+                "-DNO_FONT_AWESOME",
+            },
+        });
+        imgui_mod.addIncludePath(imgui.path("."));
+
+        const imgui_lib = b.addLibrary(.{
+            .name = "imgui",
+            .root_module = imgui_mod
+        });
+        imgui_lib.installHeadersDirectory(imgui.path("."), "imgui", .{});
+        imgui_lib.installHeadersDirectory(imgui.path("."), ".", .{});
+
+        mod.linkLibrary(imgui_lib);
+    }
+
+    const cimgui = b.dependency("cimgui", .{});
+    mod.addCSourceFile(.{
+        .file = cimgui.path("cimgui.cpp"),
+        .flags = &.{
+            "-fno-exceptions",
+            "-fno-rtti",
+            "-std=c++11"
+        },
+    });
+    mod.addIncludePath(cimgui.path("."));
+
+    const rlimgui = b.dependency("rlimgui", .{
+        .target = target,
+        .optimize = optimize,
+    });
+    mod.addCSourceFile(.{
+        .file = rlimgui.path("rlImGui.cpp"),
+        .flags = &.{},
+    });
+    mod.addIncludePath(rlimgui.path("."));
+
     const exe = b.addExecutable(.{
         .name = "gaem",
         .root_module = mod

build.zig.zon

@@ -17,6 +17,18 @@
             .url = "https://github.com/the-argus/zig-compile-commands/archive/f74e2d13e43fafab3a71e19557a0e1cfbf0f2e1b.tar.gz",
             .hash = "zig_compile_commands-0.0.1-OZg5-a3CAACM-h32Kjb1obTMqrKGs9YoDhorVZ8-LGle",
         },
+        .imgui = .{
+            .url = "https://github.com/ocornut/imgui/archive/6d910d5487d11ca567b61c7824b0c78c569d62f0.tar.gz",
+            .hash = "N-V-__8AALp9cwA8tEuEno2YCZyivsMaobnF-Z7qZGY3qBOt",
+        },
+        .rlimgui = .{
+            .url = "https://github.com/raylib-extras/rlImGui/archive/dc7f97679a024eee8f5f009e77cc311748200415.tar.gz",
+            .hash = "N-V-__8AAC-taQCKZ-3IjRuWJ-5Dc47QKHDPEmqlwXhvjBGq",
+        },
+        .cimgui = .{
+            .url = "https://github.com/cimgui/cimgui/archive/bfd30140a9c5832b5e0dcf179d6e1e5c69373d5a.tar.gz",
+            .hash = "N-V-__8AAOY-OACWjhmHu289AXFy9Fro3w_30mGFYL8FTq71",
+        }
     },
     .minimum_zig_version = "0.15.2",
     .paths = .{""},

src/main.c

@@ -86,11 +86,15 @@ int main(void)
     SetWindowState(FLAG_WINDOW_RESIZABLE);
     SetTargetFPS(60);
 
+    rlImGuiSetup(true);
+
     resources_init(&g_resources);
 
     struct Game game = { 0 };
     game_init(&game);
 
+    bool open = true;
+
     while (!WindowShouldClose())
     {
         TracyCFrameMark;
@@ -115,10 +119,15 @@ int main(void)
         game_tick(&game);
         end_window_scaling(&transform, BLACK);
 
+        rlImGuiBegin();
+        if (open) igShowDemoWindow(&open);
+        rlImGuiEnd();
+
         EndDrawing();
     }
 
     game_free(&game);
+    rlImGuiShutdown();
     CloseWindow();
 
     return 0;

src/main.h

@@ -2,6 +2,7 @@
 
 #include <raylib.h>
 #include <raymath.h>
+#include <rlImGui.h>
 #include <rlgl.h>
 #include <TracyConfig.h>
 #include <tracy/TracyC.h>
@@ -14,6 +15,9 @@
 #include <stdio.h>
 #include <string.h>
 
+#define CIMGUI_DEFINE_ENUMS_AND_STRUCTS
+#include <cimgui.h>
+
 #define INCBIN_STYLE INCBIN_STYLE_SNAKE
 #define INCBIN_PREFIX
 #include <incbin.h>