tr1/game-flow: fix story so far not playing cafe.rpl

Resolves #2779.

docs/tr1/CHANGELOG.md

@@ -27,6 +27,7 @@
 - fixed the camera going out of bounds in 60fps near specific invalid floor data (known as no-space) (#2764, regression from 4.9)
 - fixed wrong PS1-style title bar color for the end of the level stats dialog (regression from 4.9)
 - fixed Story So Far showing up even when there's nothing to play (#2611, regression from 2.10)
+- fixed Story So Far not playing the opening FMV, `cafe.rpl` (#2779, regression from 2.10)
 - improved bubble appearance (#2672)
 - improved rendering performance
 - improved pause exit dialog - it can now be canceled with escape

src/tr1/game/game_flow/sequencer_misc.c

@@ -6,6 +6,7 @@
 #include "game/level.h"
 #include "game/savegame.h"
 
+#include <libtrx/config.h>
 #include <libtrx/game/game_string_table.h>
 #include <libtrx/log.h>
 
@@ -23,6 +24,12 @@ GF_COMMAND GF_RunTitle(void)
 GF_COMMAND GF_PlayAvailableStory(const int32_t slot_num)
 {
     const int32_t savegame_level = Savegame_GetLevelNumber(slot_num);
+    const bool prev_enable_legal = g_Config.gameplay.enable_legal;
+    g_Config.gameplay.enable_legal = false;
+
+    // Play intro FMVs and cutscenes
+    GF_DoFrontendSequence();
+
     const GF_LEVEL_TABLE *const level_table = GF_GetLevelTable(GFLT_MAIN);
     for (int32_t i = 0; i <= MIN(savegame_level, level_table->count); i++) {
         const GF_LEVEL *const level = GF_GetLevel(GFLT_MAIN, i);
@@ -36,12 +43,35 @@ GF_COMMAND GF_PlayAvailableStory(const int32_t slot_num)
             break;
         }
     }
+
+    g_Config.gameplay.enable_legal = prev_enable_legal;
     return (GF_COMMAND) { .action = GF_EXIT_TO_TITLE };
 }
 
 bool GF_HasAvailableStory(const int32_t slot_num)
 {
     const int32_t savegame_level = Savegame_GetLevelNumber(slot_num);
+
+    // Check intro FMVs and cutscenes in frontend sequence (skip legal FMVs)
+    const GF_LEVEL *const title_level = GF_GetTitleLevel();
+    if (title_level != nullptr) {
+        const GF_SEQUENCE *const seq = &title_level->sequence;
+        for (int32_t j = 0; j < seq->length; j++) {
+            const GF_SEQUENCE_EVENT *const ev = &seq->events[j];
+            if (ev->type == GFS_PLAY_CUTSCENE) {
+                return true;
+            }
+            if (ev->type == GFS_PLAY_FMV) {
+                const int32_t fmv_id = (int32_t)(intptr_t)ev->data;
+                const GF_FMV *const fmv = &g_GameFlow.fmvs[fmv_id];
+                if (!fmv->is_legal) {
+                    return true;
+                }
+            }
+        }
+    }
+
+    // Check for any cutscenes or FMVs up until the save point
     const GF_LEVEL_TABLE *const level_table = GF_GetLevelTable(GFLT_MAIN);
     const int32_t max_level = MIN(savegame_level, level_table->count);
     for (int32_t i = 0; i <= max_level; i++) {
@@ -52,12 +82,20 @@ bool GF_HasAvailableStory(const int32_t slot_num)
         const GF_SEQUENCE *const seq = &level->sequence;
         for (int32_t j = 0; j < seq->length; j++) {
             const GF_SEQUENCE_EVENT *const ev = &seq->events[j];
+            // Stop checking after the saved level
             if (ev->type == GFS_LOOP_GAME) {
                 break;
             }
-            if (ev->type == GFS_PLAY_CUTSCENE || ev->type == GFS_PLAY_FMV) {
+            if (ev->type == GFS_PLAY_CUTSCENE) {
                 return true;
             }
+            if (ev->type == GFS_PLAY_FMV) {
+                const int32_t fmv_id = (int32_t)(intptr_t)ev->data;
+                const GF_FMV *const fmv = &g_GameFlow.fmvs[fmv_id];
+                if (!fmv->is_legal) {
+                    return true;
+                }
+            }
         }
     }
     return false;