add episode transitions

src/duet.h

@@ -98,6 +98,8 @@ typedef struct game {
     float time_dead;
     /* Time spent during level transition */
     float time_transition;
+    /* Time spent during episode transition */
+    float time_episode_transition;
 
     /* Forced rotation speed for level transitions and death rewind */
     float forced_player_rota;

src/main.c

@@ -17,7 +17,7 @@ typedef enum {
     State_Dead,
     State_Rewind,
     State_Transition,
-    State_EpisodeCard,
+    State_EpisodeTransition,
     State_Finale,
 } state_t;
 
@@ -97,6 +97,12 @@ int main(void)
 
     state_t state = State_Playing;
 
+    if(current_level == 0) {
+        state = State_EpisodeTransition;
+        game.time_episode_transition = 0;
+        game.time = -13.0;
+    }
+
     /* Direction of time (with a factor regulating game speed) */
     float const time_direction_forward = 2.7;
     float const time_direction_rewind = -40;
@@ -136,6 +142,18 @@ int main(void)
                 state = State_Playing;
             }
         }
+        if(state == State_EpisodeTransition) {
+            time_direction = 1.0;
+            game.time_episode_transition += (1.0 / 30);
+            if(game.time_episode_transition >= 1.0) {
+                game.player_rota = 0;
+                game.forced_player_rota = 0;
+            }
+            if(game.time_episode_transition >= 3.0) {
+                game.time_episode_transition = 0;
+                state = State_Playing;
+            }
+        }
 
         float dt = (1.0 / 30) * time_direction;
         game.time += dt;
@@ -161,20 +179,32 @@ int main(void)
         // End of level
         if(state == State_Playing &&
                 game.time >= lv->blocks[lv->block_count-1].time + 5) {
+            bool changed_episode = false;
+
             current_level++;
             if(current_level >= episodes[current_episode].level_count) {
                 current_episode++;
                 current_level = 0;
+                changed_episode = true;
             }
             if(current_episode >= episode_count)
                 break;
 
             load_level(&game, episodes[current_episode].levels[current_level]);
 
-            state = State_Transition;
-            game.time_transition = 0;
-            game.forced_player_rota = -game.player_rota / 1.0;
-            continue;
+            if(changed_episode) {
+                state = State_EpisodeTransition;
+                game.time_episode_transition = 0;
+                game.forced_player_rota = -game.player_rota / 1.0;
+                game.time = -13.0;
+                continue;
+            }
+            else {
+                state = State_Transition;
+                game.time_transition = 0;
+                game.forced_player_rota = -game.player_rota / 1.0;
+                continue;
+            }
         }
 
         // End of rewind
@@ -215,7 +245,7 @@ int main(void)
 
         dclear(C_BLACK);
 
-        if(game.time < -5.0 && lv->message != NULL) {
+        if(state == State_Playing && game.time < -5.0 && lv->message) {
             int x = DWIDTH/2 + 8 * (strcount(lv->message, '\n') + 1);
 
             /* Split at newlines */
@@ -229,6 +259,11 @@ int main(void)
             }
         }
 
+        if(state == State_EpisodeTransition) {
+            duet_text_opt(DWIDTH/2, DHEIGHT/2, C_WHITE, C_NONE, DTEXT_CENTER,
+                DTEXT_MIDDLE, episodes[current_episode].name, -1);
+        }
+
         render_player(PLAYER_X, DHEIGHT/2, game.player_rota);
         for(int i = 0; i < game.rect_count; i++)
             drectoid(&game.rects[i], C_WHITE);