From 042da1570181dc80ee76860582f6a3c97641c14a Mon Sep 17 00:00:00 2001
From: Star Rauchenberger <fefferburbia@gmail.com>
Date: Mon, 14 Mar 2022 08:32:39 -0400
Subject: fmod splash screen

---
 src/main.cpp | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 66 insertions(+), 3 deletions(-)

(limited to 'src/main.cpp')

diff --git a/src/main.cpp b/src/main.cpp
index ec253ee..4ae11d6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,6 +5,12 @@
 #include "game.h"
 #include "renderer.h"
 
+enum class TitleState {
+  FadeIn,
+  Sustain,
+  FadeOut
+};
+
 int main(int, char**)
 {
   std::random_device randomEngine;
@@ -17,6 +23,14 @@ int main(int, char**)
 
     Game game(rng, muxer);
 
+    constexpr int titleFadeLen = 3000;
+    bool doneTitles = false;
+    int titleNum = 0;
+    TitleState titleState = TitleState::FadeIn;
+    Interpolation titleFade;
+    Timer titleSustain(3000);
+    titleFade.start(titleFadeLen);
+
     size_t lastTime = SDL_GetTicks();
     while (!game.quit)
     {
@@ -24,9 +38,58 @@ int main(int, char**)
       size_t frameTime = currentTime - lastTime;
       lastTime = currentTime;
 
-      game.update(frameTime);
-      renderer.renderGame(game, true);
-      muxer.update();
+      if (doneTitles) {
+        game.update(frameTime);
+        renderer.renderGame(game, true);
+        muxer.update();
+      } else {
+        SDL_Event e;
+
+        while (SDL_PollEvent(&e));
+
+        switch (titleState) {
+          case TitleState::FadeIn: {
+            titleFade.tick(frameTime);
+            if (titleFade.isComplete()) {
+              titleState = TitleState::Sustain;
+              titleSustain.reset();
+            }
+
+            renderer.renderTitle(titleNum, titleFade.getProgress(0, 1));
+
+            break;
+          }
+          case TitleState::Sustain: {
+            titleSustain.accumulate(frameTime);
+            const Uint8* state = SDL_GetKeyboardState(NULL);
+            if (state[SDL_SCANCODE_SPACE] || titleSustain.step()) {
+              titleState = TitleState::FadeOut;
+              titleFade.start(titleFadeLen);
+            }
+
+            renderer.renderTitle(titleNum, 1);
+
+            break;
+          }
+          case TitleState::FadeOut: {
+            titleFade.tick(frameTime);
+            renderer.renderTitle(titleNum, titleFade.getProgress(1, 0));
+
+            if (titleFade.isComplete()) {
+              titleNum++;
+
+              if (titleNum < NUM_TITLES) {
+                titleState = TitleState::FadeIn;
+                titleFade.start(titleFadeLen);
+              } else {
+                doneTitles = true;
+              }
+            }
+
+            break;
+          }
+        }
+      }
     }
   } catch (const sdl_error& ex)
   {
-- 
cgit 1.4.1