From 4e5199d89a34fedaab8693102d5bdb6b13d6170f Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Tue, 29 Apr 2025 15:59:52 +0300
Subject: [PATCH] feat: lights debug mode

---
 res/shaders/main.glslf                |  3 +++
 src/engine/Engine.cpp                 |  3 ++-
 src/frontend/screens/LevelScreen.cpp  | 19 ++++++++++++-------
 src/graphics/render/WorldRenderer.cpp |  5 +++++
 src/graphics/render/WorldRenderer.hpp |  3 +++
 src/graphics/render/commons.hpp       |  2 --
 6 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/res/shaders/main.glslf b/res/shaders/main.glslf
index bccbd53a..d856acc2 100644
--- a/res/shaders/main.glslf
+++ b/res/shaders/main.glslf
@@ -7,10 +7,13 @@ out vec4 f_color;
 uniform sampler2D u_texture0;
 uniform samplerCube u_cubemap;
 uniform bool u_alphaClip;
+uniform bool u_debugLights;
 
 void main() {
     vec3 fogColor = texture(u_cubemap, a_dir).rgb;
     vec4 tex_color = texture(u_texture0, a_texCoord);
+    if (u_debugLights)
+        tex_color.rgb = vec3(1.0);
     float alpha = a_color.a * tex_color.a;
     if (u_alphaClip) {
         if (alpha < 0.2f)
diff --git a/src/engine/Engine.cpp b/src/engine/Engine.cpp
index 63db4490..6596733f 100644
--- a/src/engine/Engine.cpp
+++ b/src/engine/Engine.cpp
@@ -203,7 +203,8 @@ void Engine::updateHotkeys() {
     if (input->jpressed(Keycode::F2)) {
         saveScreenshot();
     }
-    if (input->jpressed(Keycode::F8)) {
+    if (input->pressed(Keycode::LEFT_CONTROL) && input->pressed(Keycode::F3) &&
+        input->jpressed(Keycode::U)) {
         gui->toggleDebug();
     }
     if (input->jpressed(Keycode::F11)) {
diff --git a/src/frontend/screens/LevelScreen.cpp b/src/frontend/screens/LevelScreen.cpp
index 76f7e950..210ef802 100644
--- a/src/frontend/screens/LevelScreen.cpp
+++ b/src/frontend/screens/LevelScreen.cpp
@@ -184,16 +184,21 @@ void LevelScreen::saveWorldPreview() {
 void LevelScreen::updateHotkeys() {
     auto& settings = engine.getSettings();
 
-    if (input.jpressed(Keycode::O)) {
-        settings.graphics.frustumCulling.toggle();
-    }
     if (input.jpressed(Keycode::F1)) {
         hudVisible = !hudVisible;
     }
-    if (input.jpressed(Keycode::F3)) {
-        debug = !debug;
-        hud->setDebug(debug);
-        renderer->setDebug(debug);
+    if (!input.pressed(Keycode::LEFT_CONTROL)) {
+        if (input.jpressed(Keycode::F3)) {
+            debug = !debug;
+            hud->setDebug(debug);
+            renderer->setDebug(debug);
+        }
+    } else if (input.pressed(Keycode::F3)) {
+        if (input.jpressed(Keycode::L)) {
+            renderer->toggleLightsDebug();
+        } else if (input.jpressed(Keycode::O)) {
+            settings.graphics.frustumCulling.toggle();
+        }
     }
 }
 
diff --git a/src/graphics/render/WorldRenderer.cpp b/src/graphics/render/WorldRenderer.cpp
index 79a9edfc..20640a78 100644
--- a/src/graphics/render/WorldRenderer.cpp
+++ b/src/graphics/render/WorldRenderer.cpp
@@ -118,6 +118,7 @@ void WorldRenderer::setupWorldShader(
     shader.uniform1f("u_gamma", settings.graphics.gamma.get());
     shader.uniform1f("u_fogFactor", fogFactor);
     shader.uniform1f("u_fogCurve", settings.graphics.fogCurve.get());
+    shader.uniform1i("u_debugLights", lightsDebug);
     shader.uniform1f("u_weatherFogOpacity", weather.fogOpacity());
     shader.uniform1f("u_weatherFogDencity", weather.fogDencity());
     shader.uniform1f("u_weatherFogCurve", weather.fogCurve());
@@ -442,6 +443,10 @@ void WorldRenderer::setDebug(bool flag) {
     debug = flag;
 }
 
+void WorldRenderer::toggleLightsDebug() {
+    lightsDebug = !lightsDebug;
+}
+
 Weather& WorldRenderer::getWeather() {
     return weather;
 }
diff --git a/src/graphics/render/WorldRenderer.hpp b/src/graphics/render/WorldRenderer.hpp
index fbcf5480..fbfd4998 100644
--- a/src/graphics/render/WorldRenderer.hpp
+++ b/src/graphics/render/WorldRenderer.hpp
@@ -48,6 +48,7 @@ class WorldRenderer {
     
     float timer = 0.0f;
     bool debug = false;
+    bool lightsDebug = false;
 
     /// @brief Render block selection lines
     void renderBlockSelection();
@@ -107,5 +108,7 @@ public:
 
     void setDebug(bool flag);
 
+    void toggleLightsDebug();
+
     Weather& getWeather();
 };
diff --git a/src/graphics/render/commons.hpp b/src/graphics/render/commons.hpp
index 3f193500..cfc2f16c 100644
--- a/src/graphics/render/commons.hpp
+++ b/src/graphics/render/commons.hpp
@@ -22,8 +22,6 @@ struct ChunkVertex {
         {{}, 0}};
 };
 
-/// @brief Chunk mesh vertex attributes
-
 template<typename VertexStructure>
 class Mesh;