Added text boxes

Text now reveals itself and scrolls! Yay! It even plays speaker beeps.

TODO: the arror indicating an A press is needed. Bullets on lines that need bullets. The header that says who the speaker is, if relevant.

1 files changed, 153 insertions, 0 deletions

@@ -1,4 +1,9 @@
 #include "message_system.h"
+#include "game.h"
+#include "util.h"
+
+const int CHARS_TO_REVEAL = 1;
+const int CHARS_PER_BEEP = 10;
 
 void MessageSystem::tick(double dt) {
   if (barsState_ == BarsState::Opening || barsState_ == BarsState::Closing) {
@@ -11,6 +16,53 @@ void MessageSystem::tick(double dt) {
         barsState_ = BarsState::Closed;
       }
     }
+  } else if (barsState_ == BarsState::Open) {
+    if (!linesToShow_.empty()) {
+      textAdvTimer_.accumulate(dt);
+      while (textAdvTimer_.step()) {
+        // Try to advance text on the first line that isn't totally revealed yet.
+        bool advancedChars = false;
+        for (MessageLine& line : linesToShow_) {
+          if (line.charsRevealed < line.text.size()) {
+            // Every so often play a beep.
+            if (line.charsRevealed % CHARS_PER_BEEP == 0) {
+              if (speaker_ == SpeakerType::Man) {
+                game_.getMixer().playSound("../res/speaking_man.wav");
+              } else if (speaker_ == SpeakerType::Woman) {
+                game_.getMixer().playSound("../res/speaking_woman.wav");
+              } else if (speaker_ == SpeakerType::Boy) {
+                game_.getMixer().playSound("../res/speaking_boy.wav");
+              } else if (speaker_ == SpeakerType::Girl) {
+                game_.getMixer().playSound("../res/speaking_girl.wav");
+              } else if (speaker_ == SpeakerType::Nonhuman) {
+                game_.getMixer().playSound("../res/speaking_nonhuman.wav");
+              }
+            }
+
+            line.charsRevealed += CHARS_TO_REVEAL;
+            if (line.charsRevealed > line.text.size()) {
+              line.charsRevealed = line.text.size();
+            }
+            advancedChars = true;
+            break;
+          }
+        }
+
+        if (!advancedChars) {
+          // If both lines are totally revealed, see if we can scroll up a line.
+          // This is doable as long as the next line isn't the sentinel value that
+          // means an A press is required.
+          if (!lines_.empty() && lines_.front() != "\n") {
+            if (linesToShow_.size() == 2) {
+              linesToShow_.pop_front();
+            }
+
+            linesToShow_.push_back(MessageLine { .text = lines_.front() });
+            lines_.pop_front();
+          }
+        }
+      }
+    }
   }
 }
 
@@ -24,6 +76,107 @@ void MessageSystem::hideCutsceneBars() {
   barsState_ = BarsState::Closing;
 }
 
+void MessageSystem::displayMessage(std::string_view msg, SpeakerType speaker) {
+  if (!(barsState_ == BarsState::Opening || barsState_ == BarsState::Open)) {
+    displayCutsceneBars();
+  }
+
+  speaker_ = speaker;
+
+  auto lineChunks = splitStr<std::list<std::string>>(std::string(msg), "\n");
+  for (const std::string& text : lineChunks) {
+    auto words = splitStr<std::list<std::string>>(text, " ");
+
+    std::string curLine;
+    int curWidth = 0;
+    bool firstWord = true;
+    bool shouldAddBlank = false;
+
+    // I'm gonna be frank and admit it: I'm not gonna take hyphenation into
+    // consideration. Please don't write any words that are wider than the
+    // textbox.
+    for (const std::string& word : words) {
+      int wordWidth = 0;
+      bool firstChar = true;
+      for (int i=0; i<word.size(); i++) {
+        if (firstChar) {
+          firstChar = false;
+        } else {
+          wordWidth++;
+        }
+
+        wordWidth += game_.getFont().getCharacterWidth(word[i]);
+      }
+
+      int nextWidth = curWidth + wordWidth;
+      if (!firstWord) {
+        nextWidth += game_.getFont().getCharacterWidth(' ');
+      }
+
+      if (nextWidth > MESSAGE_TEXT_WIDTH) {
+        lines_.push_back(curLine);
+        curLine = word;
+        curWidth = wordWidth + game_.getFont().getCharacterWidth(' ');
+
+        if (shouldAddBlank) {
+          shouldAddBlank = false;
+          lines_.push_back("\n");
+        } else {
+          shouldAddBlank = true;
+        }
+      } else {
+        curWidth = nextWidth;
+        if (!firstWord) {
+          curLine.append(" ");
+        }
+        curLine.append(word);
+      }
+
+      firstWord = false;
+    }
+
+    lines_.push_back(curLine);
+    lines_.push_back("\n");
+  }
+
+  if (linesToShow_.empty()) {
+    linesToShow_.push_back(MessageLine { .text = lines_.front() });
+    lines_.pop_front();
+
+    if (lines_.front() != "\n") {
+      linesToShow_.push_back(MessageLine { .text = lines_.front() });
+      lines_.pop_front();
+    }
+  }
+}
+
+void MessageSystem::advanceText() {
+  if (barsState_ != BarsState::Open) {
+    return;
+  }
+
+  for (const MessageLine& line : linesToShow_) {
+    if (line.charsRevealed != line.text.size()) {
+      return;
+    }
+  }
+
+  if (lines_.empty()) {
+    linesToShow_.clear();
+    return;
+  }
+
+  if (lines_.front() != "\n") {
+    return;
+  }
+
+  lines_.pop_front();
+
+  if (lines_.empty()) {
+    linesToShow_.clear();
+  }
+}
+
 double MessageSystem::getCutsceneBarsProgress() const {
   switch (barsState_) {
     case BarsState::Closed: return 0.0;