music! random dialogue!

src/main.cpp

@@ -187,6 +187,16 @@ static void cmd_line(Script& s, text_t* dialogue,
     } });
 }
 
+static void cmd_clear(Script& s, text_t* dialogue,
+    element_handle_t dialogue_id, compositor_t* comp)
+{
+    s.push_back({ "CLEAR", [=]() -> bool {
+        text_clear(dialogue);
+        compositor_mark_content_dirty(comp, dialogue_id);
+        return false;
+    } });
+}
+
 static void cmd_wait_click(Script& s, Interpreter& interp)
 {
     s.push_back({ "WAIT_CLICK", [&interp]() -> bool {
@@ -302,6 +312,8 @@ static void cmd_end(Script& s, Interpreter& interp)
 // ---------------------------------------------------------------------------
 
 int main() {
+    srand((unsigned int)time(NULL));
+
     const int WIDTH = 1280;
     const int HEIGHT = 720;
     const int CHAR_WIDTH = 400;
@@ -327,9 +339,26 @@ int main() {
 
     audio_set_global_volume(audio, 1.0f);
 
+    typedef struct {
+        const char* title;
+        const char* composer;
+        const char* file;
+    } music_track_t;
+
+    static const music_track_t strauss_tracks[] = {
+        {"Freikugeln", "Johann Strauss II", "assets/Freikugeln.wav"},
+        {"Perpetuum Mobile", "Johann Strauss II", "assets/Perpetuum_Mobile.wav"},
+        {"Ohne Sorgen!", "Josef Strauss", "assets/Ohne_Sorgen!.wav"},
+        {"Auf Ferienreisen", "Josef Strauss", "assets/Auf_Ferienreisen.wav"},
+        {"Dynamiden", "Josef Strauss", "assets/Dynamiden.wav"}
+    };
+
+    int track_idx = rand() % (sizeof(strauss_tracks) / sizeof(strauss_tracks[0]));
+    const music_track_t* track = &strauss_tracks[track_idx];
+
     int music_size, music_channels, music_rate, music_total_samples;
     AudioDataHandle music_data(audio_load_madpcm(
-        "assets/Freikugeln.wav",
+        track->file,
         &music_size, &music_channels, &music_rate, &music_total_samples));
     if (!music_data) { printf("Failed to load audio\n"); return 1; }
 
@@ -415,6 +444,7 @@ int main() {
     auto line = [&](const char* text, float speed = 30.0f) {
         cmd_line(S, dlg, dlg_id, comp, text, speed);
         };
+	auto clear = [&]() { cmd_clear(S, dlg, dlg_id, comp); };
     auto wait_click = [&]() { cmd_wait_click(S, interp); };
     auto wait_anim_all = [&]() { cmd_wait_anim_all(S, interp); };
     auto wait_anim = [&](element_handle_t e) { cmd_wait_anim_elem(S, interp, e); };
@@ -440,9 +470,6 @@ int main() {
     // Scene 1 - maksw slides in, introduces the engine
     // ------------------------------------------------------------------
 
-    // Slide maksw_happy in from off-screen, bob on arrival, scale up as
-    // "active speaker". No WAIT_ANIM here - dialogue starts immediately
-    // and the animation plays alongside the typewriter, which feels natural.
     anim_move(maksw_happy_id, CENTER_X, CHAR_BASELINE_Y,
         1.5f, EASE_OUT_CUBIC, true);
     anim_scale(maksw_happy_id, 1.1f, 0.3f, EASE_IN_OUT_CUBIC, /*queue=*/true, /*parallel=*/false);
@@ -463,10 +490,25 @@ int main() {
     line("Yeah, hello to you too.");
     wait_click();
 
+    const char* greetings[] = {
+        "Oh Wiktor, what a nice surprise!",
+        "Oh hey Wiktor, didn't expect to see you!",
+        "Wiktor! What brings you here?"
+    };
+
+    const char* responses[] = {
+        "No, I was just walking by.",
+        "Nah, just passing through.",
+        "Not really, just wandering."
+    };
+
+    int greeting_idx = rand() % 3;
+    int response_idx = rand() % 3;
+
     anim_scale(wikor_id, 1.0f, 0.3f, EASE_IN_OUT_CUBIC);
     anim_scale(maksw_happy_id, 1.05f, 0.3f, EASE_IN_OUT_CUBIC);
     speaker("maksw");
-    line("Oh Wiktor, what a nice surprise!");
+    line(greetings[greeting_idx]);
     wait_click();
 
     line("...Do you need anything?");
@@ -475,48 +517,28 @@ int main() {
     anim_scale(maksw_happy_id, 1.0f, 0.3f, EASE_IN_OUT_CUBIC);
     anim_scale(wikor_id, 1.05f, 0.3f, EASE_IN_OUT_CUBIC);
     speaker("wikor");
-    line("No, I was just walking by.");
+    line(responses[response_idx]);
     wait_click();
 
     line("Cool engine though.");
     wait_click();
 
-    // ------------------------------------------------------------------
-    // Transition - wipe in, swap scene, wipe out
-    //
-    // Phase 1: mask slides down from above to cover the screen.
-    //          We WAIT on that specific element so we know exactly when
-    //          the screen is fully hidden - no guessing, no hack cases.
-    //
-    // Phase 2: while hidden, swap sprites and set up the new scene state.
-    //          All of this is instant (no animation), which is fine because
-    //          the mask is covering everything.
-    //
-    // Phase 3: hide mask, show mask2 (already covering screen at y=0),
-    //          slide mask2 downward to reveal the new scene.
-    //          We don't WAIT here - dialogue runs alongside the wipe-out,
-    //          which looks intentional and cinematic.
-    // ------------------------------------------------------------------
-
-    // Phase 1 - cover
     finish_all();
     show(mask_id);
     anim_move(mask_id, 0, 0, 0.5f, EASE_OUT_CUBIC);
-    wait_anim(mask_id);     // block until mask fully covers the screen
+    wait_anim(mask_id);
 
-    // Phase 2 - swap (mask is covering, player sees nothing)
     hide(maksw_happy_id);
     show(maksw_neutral_id);
     scale(maksw_neutral_id, 1.0f);
     scale(wikor_id, 1.05f);
 
-    // Phase 3 - uncover
     hide(mask_id);
     show(mask2_id);
-    // mask2 starts at y=0 (covering screen), animate it off downward
     anim_move(mask2_id, 0, HEIGHT, 0.5f, EASE_OUT_CUBIC);
-    // Dialogue fires immediately - text appears as the wipe reveals the scene
     speaker("wikor");
+    clear();
+    wait_anim(mask2_id);
     line("Anyways, how's your day going?");
     wait_click();
 
@@ -542,7 +564,10 @@ int main() {
     anim_scale(wikor_id, 1.0f, 0.3f, EASE_IN_OUT_CUBIC);
     anim_scale(maksw_neutral_id, 1.05f, 0.3f, EASE_IN_OUT_CUBIC);
     speaker("maksw");
-    line("Yep! Freikugeln by Johann Strauss II!");
+    char music_line[256];
+    snprintf(music_line, sizeof(music_line),
+        "Yep! %s by %s!", track->title, track->composer);
+    line(music_line);
     wait_click();
 
     finish_all();
@@ -632,4 +657,4 @@ int main() {
 
     audio_stop(audio, music_id);
     return 0;
-}
+}