From e954d4ea59f4e4794d4357be86a592947304930e Mon Sep 17 00:00:00 2001
From: Sergio Valor <jaildesigner@gmail.com>
Date: Fri, 22 May 2026 23:10:06 +0200
Subject: [PATCH] =?UTF-8?q?tweak(playfield):=20rejilla=20violeta=20synthwa?=
 =?UTF-8?q?ve=20+=20brillos=20+5%;=20starfield=20unificat=20al=20color=20d?=
 =?UTF-8?q?el=20t=C3=ADtol?=
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---
 source/core/defaults/playfield.hpp          |  9 +++++++--
 source/core/graphics/playfield.cpp          | 12 +++++++++---
 source/core/graphics/starfield_parallax.cpp | 11 +++--------
 3 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/source/core/defaults/playfield.hpp b/source/core/defaults/playfield.hpp
index 512722c..d0dc67a 100644
--- a/source/core/defaults/playfield.hpp
+++ b/source/core/defaults/playfield.hpp
@@ -3,6 +3,8 @@
 
 #pragma once
 
+#include <SDL3/SDL.h>
+
 namespace Defaults::Playfield {
 
     // Estructura de la graella (cel·les omplen tota la PLAYAREA)
@@ -11,8 +13,11 @@ namespace Defaults::Playfield {
     constexpr int SUBDIVISIONS = 4;  // cada cel·la principal es divideix en N subcel·les
 
     // Brillo respecte al color global (border = 1.0)
-    constexpr float GRID_BRIGHTNESS = 0.15F;
-    constexpr float SUBGRID_BRIGHTNESS = 0.05F;
+    constexpr float GRID_BRIGHTNESS = 0.20F;
+    constexpr float SUBGRID_BRIGHTNESS = 0.10F;
+
+    // Color de la rejilla (lila/violeta synthwave). Es modula amb brillantor.
+    constexpr SDL_Color GRID_COLOR = {.r = 160, .g = 80, .b = 255, .a = 255};
 
     // Animació de creació amb timer intern del Playfield.
     // L'animació total cobreix tot l'INIT_HUD (3 s). Cada línia es pinta en
diff --git a/source/core/graphics/playfield.cpp b/source/core/graphics/playfield.cpp
index f382a4e..4358cb5 100644
--- a/source/core/graphics/playfield.cpp
+++ b/source/core/graphics/playfield.cpp
@@ -290,7 +290,9 @@ namespace Graphics {
                 static_cast<int>(START_Y),
                 static_cast<int>(END_X),
                 static_cast<int>(END_Y),
-                line.brightness);
+                line.brightness,
+                0.0F,
+                Defaults::Playfield::GRID_COLOR);
             // Cap brillant mentre creix.
             if (P < 1.0F) {
                 const float LENGTH = std::sqrt((DX * DX) + (DY * DY));
@@ -302,7 +304,9 @@ namespace Graphics {
                         static_cast<int>(START_Y + (DY * HEAD_T)),
                         static_cast<int>(END_X),
                         static_cast<int>(END_Y),
-                        Defaults::Playfield::HEAD_BRIGHTNESS);
+                        Defaults::Playfield::HEAD_BRIGHTNESS,
+                        0.0F,
+                        Defaults::Playfield::GRID_COLOR);
                 }
             }
             return;
@@ -329,7 +333,9 @@ namespace Graphics {
                 static_cast<int>(prev_y),
                 static_cast<int>(NX),
                 static_cast<int>(NY),
-                line.brightness);
+                line.brightness,
+                0.0F,
+                Defaults::Playfield::GRID_COLOR);
             prev_x = NX;
             prev_y = NY;
         }
diff --git a/source/core/graphics/starfield_parallax.cpp b/source/core/graphics/starfield_parallax.cpp
index 32b4da3..8735ace 100644
--- a/source/core/graphics/starfield_parallax.cpp
+++ b/source/core/graphics/starfield_parallax.cpp
@@ -31,20 +31,15 @@ namespace Graphics {
         const float MIN_Y = zona.y;
         const float MAX_Y = zona.y + zona.h;
 
-        // Tint aleatori entre blanc (255,255,255) i cyan (0,255,255) per estrella.
-        // T ∈ [0,1]: 0 → blanc; 1 → cyan. R = 255·(1-T), G=B=255.
+        // Color únic per a totes les estrelles: el mateix blanc-blau gel
+        // del starfield del títol (Defaults::Title::Colors::STARFIELD).
         const auto FILL_LAYER = [&](int layer, int count, int& idx) {
             for (int i = 0; i < count; i++) {
-                const float T = randUniform(0.0F, 1.0F);
                 stars_[idx++] = Star{
                     .x = randUniform(MIN_X, MAX_X),
                     .y = randUniform(MIN_Y, MAX_Y),
                     .layer = layer,
-                    .color = SDL_Color{
-                        .r = static_cast<Uint8>(255.0F * (1.0F - T)),
-                        .g = 255,
-                        .b = 255,
-                        .a = 255}};
+                    .color = Defaults::Title::Colors::STARFIELD};
             }
         };