tetris high score

Firmware/main/src/apps/tetris_app.cpp

@@ -13,6 +13,7 @@
 #include <buzzer.hpp>
 #include <disp_tools.hpp>
 #include <display.hpp>
+#include <nvs.h>
 #include <power_helper.hpp>
 
 #include <algorithm>
@@ -20,10 +21,12 @@
 #include <cmath>
 #include <cstdio>
 #include <cstring>
+#include <limits>
 #include <random>
 #include <string_view>
 #include <vector>
 
+#include <esp_err.h>
 #include "esp_random.h"
 #include "esp_timer.h"
 
@@ -223,8 +226,8 @@ public:
         oy = (fb.height() - bh) / 2;    // centered vertically with margin
     }
 
-    void render(const Board& b, int px, int py, int prot, int pidx, int score, int level, int lines, int nextIdx,
-                bool ghost, bool paused, bool gameOver, int fps, int avgFrameMs10) {
+    void render(const Board& b, int px, int py, int prot, int pidx, int score, int highScore, int level, int lines,
+                int nextIdx, bool ghost, bool paused, bool gameOver, int fps, int avgFrameMs10) {
         auto&    ps  = PerfStats::get();
         auto     tus = []() { return esp_timer_get_time(); };
         uint64_t t0  = tus(); // frame start (no full clear; buffer already zeroed by async post-blit)
@@ -257,6 +260,10 @@ public:
         drawLabel(hudX, yHUD, "SCORE");
         yHUD += hudFontHeight() + kHudLabelGap;
         drawNumber(hudX, yHUD, score);
+        yHUD += hudFontHeight() + kHudLabelGap;
+        drawLabel(hudX, yHUD, "BEST");
+        yHUD += hudFontHeight() + kHudLabelGap;
+        drawNumber(hudX, yHUD, highScore);
         yHUD += hudFontHeight() + kHudBlockGap;
         drawLabel(hudX, yHUD, "LEVEL");
         yHUD += hudFontHeight() + kHudLabelGap;
@@ -681,16 +688,18 @@ private:
 // ─────────────────────────────────────────────────────────────────────────────
 // Game
 struct ScoreState {
-    int level  = 0;
-    int score  = 0;
-    int lines  = 0;
-    int dropMs = cfg::DropMsStart;
+    int level     = 0;
+    int score     = 0;
+    int highScore = 0;
+    int lines     = 0;
+    int dropMs    = cfg::DropMsStart;
 };
 
 class Game {
 public:
     explicit Game(AppContext& ctx) :
         appContext(ctx), fb(ctx.framebuffer), input(ctx.input), clock(ctx.clock), renderer(ctx.framebuffer) {
+        loadHighScore();
         nextPiece = bag.next();
         spawn();
         lastFall       = clock.millis();
@@ -970,6 +979,32 @@ private:
         else if (!wantSlow && ph.is_slow())
             ph.set_slow(false);
     }
+    void loadHighScore() {
+        nvs_handle_t h;
+        if (nvs_open("tetris", NVS_READONLY, &h) == ESP_OK) {
+            uint32_t stored = 0;
+            if (nvs_get_u32(h, "best", &stored) == ESP_OK) {
+                uint32_t capped = std::min<uint32_t>(stored, static_cast<uint32_t>(std::numeric_limits<int>::max()));
+                score.highScore = static_cast<int>(capped);
+            }
+            nvs_close(h);
+        }
+    }
+    void persistHighScore() {
+        nvs_handle_t h;
+        if (nvs_open("tetris", NVS_READWRITE, &h) == ESP_OK) {
+            uint32_t value = score.highScore > 0 ? static_cast<uint32_t>(score.highScore) : 0;
+            nvs_set_u32(h, "best", value);
+            nvs_commit(h);
+            nvs_close(h);
+        }
+    }
+    void updateHighScoreIfNeeded() {
+        if (score.score > score.highScore) {
+            score.highScore = score.score;
+            persistHighScore();
+        }
+    }
     void paintHUD() {
         // Complete previous frame transfer & implicit clear so dma_buf pixel area is zeroed before we draw
         SMD::async_draw_wait();
@@ -989,8 +1024,8 @@ private:
             frameAccumMs     = 0;
             lastStatTime     = rStart;
         }
-        renderer.render(board, px, py, rot, current, score.score, score.level, score.lines, nextPiece, true, paused,
-                        !running, statFps, statAvgFrameMs10);
+        renderer.render(board, px, py, rot, current, score.score, score.highScore, score.level, score.lines, nextPiece,
+                        true, paused, !running, statFps, statAvgFrameMs10);
         uint64_t rEndUs = esp_timer_get_time();
         {
             auto&    ps  = PerfStats::get();
@@ -1008,8 +1043,11 @@ private:
         dirty = false;
     }
     void restart() {
+        updateHighScoreIfNeeded();
         board.clear();
-        score = ScoreState{};
+        int best        = score.highScore;
+        score           = ScoreState{};
+        score.highScore = best;
         bag.reset(); // new randomized sequence without reconstructing (avoids potential random_device issues)
         nextPiece      = bag.next();
         running        = true;
@@ -1036,6 +1074,7 @@ private:
             gameOverTime        = clock.millis();
             gameOverPrevPressed = true; // require a release after delay
             // slow mode applied centrally next step
+            updateHighScoreIfNeeded();
             Buzzer::get().beepGameOver();
         }
     }
@@ -1122,6 +1161,7 @@ private:
             gameOverTime        = clock.millis();
             gameOverPrevPressed = true;
             // slow mode applied centrally next step
+            updateHighScoreIfNeeded();
             Buzzer::get().beepGameOver();
             return;
         }
@@ -1130,6 +1170,7 @@ private:
             static const int pts[5] = {0, 100, 300, 500, 800};
             score.lines += c;
             score.score += pts[c] * (score.level + 1);
+            updateHighScoreIfNeeded();
             int nl = score.lines / cfg::LevelStepClr;
             if (nl != score.level) {
                 score.level  = nl;
@@ -1177,9 +1218,9 @@ private:
 
     void runStep() {
         game.step();
-        const auto now  = context.clock.millis();
-        const auto plan = game.recommendedSleepMs(now);
-        uint32_t delay = plan.normal_ms != 0 ? plan.normal_ms : plan.slow_ms;
+        const auto now   = context.clock.millis();
+        const auto plan  = game.recommendedSleepMs(now);
+        uint32_t   delay = plan.normal_ms != 0 ? plan.normal_ms : plan.slow_ms;
         scheduleNextTick(delay);
     }