add debug mode

Author: indevn

test/system_test/main.cpp

@@ -16,10 +16,12 @@
 
 #include <renderer.h>
 
+#include <chrono>
 #include <cstdint>
 #include <iostream>
 #include <span>
 #include <string>
+#include <thread>
 #include <vector>
 
 #include "buffer.hpp"
@@ -81,7 +83,7 @@ int main(int argc, char **argv) {
   simple_renderer::Camera camera(simple_renderer::Vector3f(0.0f, 0.0f, 1.0f));
 
   // 设置渲染模式（可选：TRADITIONAL、TILE_BASED 或 DEFERRED）
-  simple_renderer.SetRenderingMode(simple_renderer::RenderingMode::TILE_BASED);
+  simple_renderer.SetRenderingMode(simple_renderer::RenderingMode::TRADITIONAL);
 
   // 输出当前渲染模式
   std::string current_mode_name;
@@ -101,9 +103,11 @@ int main(int argc, char **argv) {
   auto display = Display(kWidth, kHeight);
   display.loopBegin();
 
-  while (!display.loopShouldClose()) {
-    display.handleEvents(camera);
-
+  // 调试模式：固定相机状态，只渲染一帧
+  bool debug_mode = true;
+  
+  if (debug_mode) {
+    // 固定相机参数进行调试
     shader.SetUniform("cameraPos", camera.GetPosition());
     shader.SetUniform("viewMatrix", camera.GetViewMatrix());
     shader.SetUniform("projectionMatrix",
@@ -115,8 +119,29 @@ int main(int argc, char **argv) {
     }
 
     buffer.SwapBuffer();
-
     display.fill(buffer.GetDisplayBuffer());
+    
+    // 调试模式下等待几秒让我们看到结果
+    std::this_thread::sleep_for(std::chrono::seconds(3));
+  } else {
+    // 正常渲染循环
+    while (!display.loopShouldClose()) {
+      display.handleEvents(camera);
+
+      shader.SetUniform("cameraPos", camera.GetPosition());
+      shader.SetUniform("viewMatrix", camera.GetViewMatrix());
+      shader.SetUniform("projectionMatrix",
+                        camera.GetProjectionMatrix(60.0f, static_cast<float>(kWidth) / static_cast<float>(kHeight), 0.1f, 100.0f));
+
+      buffer.ClearDrawBuffer(simple_renderer::Color::kBlack);
+      for (auto &model : models) {
+        simple_renderer.DrawModel(model, shader, buffer.GetDrawBuffer());
+      }
+
+      buffer.SwapBuffer();
+
+      display.fill(buffer.GetDisplayBuffer());
+    }
   }
 
   return 0;