signs can be read now!

1 files changed, 130 insertions, 0 deletions

@@ -0,0 +1,130 @@
+#include "sign.h"
+#include <list>
+#include "util.h"
+#include "consts.h"
+#include "game.h"
+
+void Sign::displayMessage(std::string text) {
+  signDisplayState = SignInstructionState::FadingIn;
+  lines.clear();
+
+  auto lineChunks = splitStr<std::list<std::string>>(text, "\\n");
+  for (std::string lineChunk : lineChunks) {
+    auto words = splitStr<std::list<std::string>>(lineChunk, " ");
+    std::string prev = words.front();
+    words.pop_front();
+    std::string cur = prev;
+    bool pauseLine = false;
+
+    while (!words.empty()) {
+      cur = prev + " " + words.front();
+
+      int width = 0;
+      TTF_SizeText(font_, cur.c_str(), &width, nullptr);
+      if (width > MESSAGE_TEXT_WIDTH) {
+        lines.push_back({.text = prev, .pause = pauseLine});
+        pauseLine = !pauseLine;
+        cur = words.front();
+      } else if (words.size() == 1) {
+        lines.push_back({.text = cur, .pause = true});
+      }
+
+      prev = cur;
+      words.pop_front();
+    }
+  }
+
+  lines.back().pause = true;
+  linesToShow.push_back(lines.front());
+  lines.pop_front();
+
+  if (!linesToShow.back().pause) {
+    linesToShow.push_back(lines.front());
+    lines.pop_front();
+  }
+}
+
+void Sign::update(size_t dt, Game& game) {
+  SDL_Event e;
+
+  while (SDL_PollEvent(&e)) {
+    if (e.type == SDL_QUIT) {
+      game.quit = true;
+    }
+  }
+
+  switch (signDisplayState) {
+    case SignInstructionState::Hidden: {
+      // Shouldn't happen.
+      break;
+    }
+    case SignInstructionState::FadingIn: {
+      signDisplayFade.tick(dt);
+      if (signDisplayFade.isComplete()) {
+        signDisplayState = SignInstructionState::Visible;
+      }
+
+      break;
+    }
+    case SignInstructionState::FadingOut: {
+      signDisplayFade.tick(dt);
+      if (signDisplayFade.isComplete()) {
+        signDisplayState = SignInstructionState::Hidden;
+      }
+
+      break;
+    }
+    case SignInstructionState::Visible: {
+      const Uint8* state = SDL_GetKeyboardState(NULL);
+      if (state[SDL_SCANCODE_SPACE]) {
+        bool fullyRevealed = true;
+        for (const SignLine& line : linesToShow) {
+          if (line.charsRevealed != line.text.size()) {
+            fullyRevealed = false;
+            break;
+          }
+        }
+
+        if (fullyRevealed) {
+          if (linesToShow.back().pause) {
+            linesToShow.back().pause = false;
+            // Play a sound
+          }
+          if (lines.empty()) {
+            linesToShow.clear();
+            signDisplayState = SignInstructionState::FadingOut;
+            signDisplayFade.start(1000);
+            break;
+          }
+        }
+      }
+
+      textAdvTimer_.accumulate(dt);
+      while (textAdvTimer_.step()) {
+        bool advancedChars = false;
+        for (SignLine& line : linesToShow) {
+          if (line.charsRevealed < line.text.size()) {
+            if (line.charsRevealed % CHARS_PER_BEEP == 0) {
+              // Play a sound
+              game.muxer.playSound("textbeep");
+            }
+            line.charsRevealed++;
+            advancedChars = true;
+            break;
+          }
+        }
+        if (!advancedChars) {
+          if (!lines.empty() && !linesToShow.back().pause) {
+            if (linesToShow.size() == 2) {
+              linesToShow.pop_front();
+            }
+            linesToShow.push_back(lines.front());
+            lines.pop_front();
+          }
+        }
+      }
+
+      break;
+    }
+  }
+}