Working on textbox code.

src/conversation/textbox.c

@@ -7,24 +7,18 @@
 
 #include "textbox.h"
 
-char TEXTBOX_TEXT[TEXTBOX_BUFFER_MAX];
+char TEXTBOX_TEXTS[TEXTBOX_SCROLL_ROWS_MAX * TEXTBOX_CHARS_PER_ROW];
 uint8_t TEXTBOX_ROW_COUNT;
 uint8_t TEXTBOX_ROW_CURRENT;
-
-uint8_t TEXTBOX_TEXT_LENGTH;
 uint8_t TEXTBOX_STATE;
 uint8_t TEXTBOX_SCROLL;
-uint8_t TEXTBOX_CHAR_POSITION;
 
 inline void conversationTextboxInit() {
   uint8_t i;
   uint8_t TEXTBOX_TILES[TEXTBOX_TILES_MAX];
 
   // Reset textbox state
-  TEXTBOX_TEXT[0] = '\0';
   TEXTBOX_STATE = 0;
-  TEXTBOX_TEXT_LENGTH = 0;
-  TEXTBOX_SCROLL = 0;
 
   // Setup window data
   move_win(7, SCREENHEIGHT - (TEXTBOX_HEIGHT_IN_TILES * 8));
@@ -55,26 +49,56 @@ inline void conversationTextboxInit() {
   );
 }
 
-void conversationTextboxSetText(char *text, uint8_t length) {
+void conversationTextboxSetText(char *text) {
-  uint8_t i, j;
+  uint8_t i, j, k, rowStart, stateFlags;
-  char c;
+  char c, c2;
   uint8_t TEXTBOX_TILES[TEXTBOX_CHAR_ROWS * TEXTBOX_CHARS_PER_ROW];
 
-  TEXTBOX_TEXT_LENGTH = 0;
+  for(i = 0; i < TEXTBOX_SCROLL_ROWS_MAX * TEXTBOX_CHARS_PER_ROW; i++) {
-  i = 0;
+    TEXTBOX_TEXTS[i] = '4';
-
-  while((c = text[i]) != '\0') {
-    TEXTBOX_TEXT[i] = c;
-    TEXTBOX_TEXT_LENGTH++;
-    i++;
   }
 
   // Reset textbox state
   TEXTBOX_STATE = TEXTBOX_STATE_VISIBLE;
   TEXTBOX_SCROLL = 0;
-  TEXTBOX_CHAR_POSITION = 0;
+  TEXTBOX_ROW_CURRENT = 0;
   
-  // Fill blank characters
+  // Copy source text to buffer, also determine wordwrapping here.
+  i = 0, j = 0, rowStart = 0, stateFlags = 0;
+  while((c = text[i]) != '\0') {
+    if(c == ' ') {
+      // Scan ahead and look at how many chars remain to the next space
+      k = i;
+      while((c2 = text[++k]) != '\0') {
+        if(c2 == '\n' || c2 == ' ') break;
+        if((k - rowStart) >= TEXTBOX_CHARS_PER_ROW) break;
+      }
+      
+      // IF that number is less than the remaining chars on the current row,
+      // then treat this space like a newline.
+      if(k == (rowStart + TEXTBOX_CHARS_PER_ROW)) {
+        stateFlags |= 1 << 0;
+      }
+    } else if(c == '\n') {
+      stateFlags |= 1 << 0;
+    }
+
+    // Do we need to newline?
+    if((stateFlags & (1 << 0)) != 0) {
+      stateFlags &= ~(1 << 0);
+      rowStart += TEXTBOX_CHARS_PER_ROW;
+      j = rowStart;
+      i++;
+      continue;
+    }
+
+    TEXTBOX_TEXTS[j] = c;
+    i++;
+    j++;
+  }
+
+  // Now we have organized the string nicely we can prep for rendering. Fill the
+  // tiles with blank chars.
   for(j = 0; j < TEXTBOX_CHAR_ROWS; j++) {
     for(i = 0; i < TEXTBOX_CHARS_PER_ROW ; i++) {
       TEXTBOX_TILES[i + (j * TEXTBOX_CHARS_PER_ROW)] = TEXTBOX_TILE_BLANK;
@@ -92,45 +116,50 @@ void conversationTextboxSetText(char *text, uint8_t length) {
 
 inline void conversationTextboxUpdate() {
   uint8_t i;
+  char c;
 
   // Is the textbox visible?
   if(!(TEXTBOX_STATE & TEXTBOX_STATE_VISIBLE)) return;
 
   // Has the textbox finished scrolling?
-  if(TEXTBOX_STATE & TEXTBOX_STATE_SCROLLED) {
+  // if(TEXTBOX_STATE & TEXTBOX_STATE_SCROLLED) {
-    // Is the player attempting to close the textbox?
+  //   // Is the player attempting to close the textbox?
-    if(INPUT_STATE & J_A) {
+  //   if(INPUT_STATE & J_A) {
-      TEXTBOX_STATE &= ~TEXTBOX_STATE_VISIBLE;
+  //     TEXTBOX_STATE &= ~TEXTBOX_STATE_VISIBLE;
-      HIDE_WIN;
+  //     HIDE_WIN;
-      conversationQueueNext();
+  //     conversationQueueNext();
-    }
+  //   }
-    return;
+  //   return;
-  }
+  // }
 
   // Move to the next character.
-  if(TEXTBOX_TEXT[TEXTBOX_SCROLL] == ' ') {
+  i = TEXTBOX_ROW_CURRENT * TEXTBOX_CHARS_PER_ROW;
-    // Whitespace, do nothing.
+  c = TEXTBOX_TEXTS[i+TEXTBOX_SCROLL];
-    TEXTBOX_CHAR_POSITION++;
-  } else if(TEXTBOX_TEXT[TEXTBOX_SCROLL] == '\n') {
-    // Newline character, move the next tile to the next row.
-    TEXTBOX_CHAR_POSITION = (
-      (TEXTBOX_CHAR_POSITION / TEXTBOX_CHARS_PER_ROW) + 1
-    ) * TEXTBOX_CHARS_PER_ROW;
-  } else {
-    // Reveal the next character. TODO: I'll optimize this.
-    set_win_tiles(
-      1 + (TEXTBOX_CHAR_POSITION % TEXTBOX_CHARS_PER_ROW),
-      1 + (TEXTBOX_CHAR_POSITION / TEXTBOX_CHARS_PER_ROW),
-      1, 1,
-      TEXTBOX_TEXT + TEXTBOX_SCROLL
-    );
-    TEXTBOX_CHAR_POSITION++;
-  }
-  TEXTBOX_SCROLL++;
   
-  // Update state. TODO: I actually don't really need this state, it's just here
+  // while((c = TEXTBOX_TEXTS[i+TEXTBOX_SCROLL]) == ' ') {
-  // incase I want to check if the state has scrolled later on? Doubt it though.
+  //   TEXTBOX_SCROLL++;
-  if(TEXTBOX_SCROLL == TEXTBOX_TEXT_LENGTH) {
+
-    TEXTBOX_STATE |= TEXTBOX_STATE_SCROLLED;
+  //   if(TEXTBOX_SCROLL == TEXTBOX_CHARS_MAX) {
+  //     c = '\0';
+  //     break;
+  //   }
+  // }
+
+  if(TEXTBOX_SCROLL == TEXTBOX_CHARS_MAX) {
+    // TEXTBOX_
+  } else if(c != '\0') {
+    set_win_tiles(
+      1 + (TEXTBOX_SCROLL % TEXTBOX_CHARS_PER_ROW),
+      1 + (TEXTBOX_SCROLL / TEXTBOX_CHARS_PER_ROW),
+      1, 1,
+      0x04
+    );
+    TEXTBOX_SCROLL++;
   }
+
+  // // Update state. TODO: I actually don't really need this state, it's just here
+  // // incase I want to check if the state has scrolled later on? Doubt it though.
+  // if(TEXTBOX_SCROLL == TEXTBOX_TEXT_LENGTH) {
+  //   TEXTBOX_STATE |= TEXTBOX_STATE_SCROLLED;
+  // }
 }

src/conversation/textbox.h

@@ -39,19 +39,19 @@
 #define TEXTBOX_TILES_ROWS 3
 #define TEXTBOX_TILE_BLANK COMMON_TILE_3
 
+#define TEXTBOX_SCROLL_ROWS_MAX 9
+
+// STR_ ## name ## _DATA, STR_ ## name ## _LENGTH
 #define conversationTextboxString(name) conversationTextboxSetText(\
-  STR_ ## name ## _DATA, STR_ ## name ## _LENGTH\
+  STR_ ## name ## _DATA\
 )
 
-extern char TEXTBOX_TEXT[TEXTBOX_BUFFER_MAX];
+extern char TEXTBOX_TEXTS[TEXTBOX_SCROLL_ROWS_MAX * TEXTBOX_CHARS_PER_ROW];
 extern uint8_t TEXTBOX_ROW_COUNT;
 extern uint8_t TEXTBOX_ROW_CURRENT;
-
-extern uint8_t TEXTBOX_TEXT_LENGTH;
 extern uint8_t TEXTBOX_STATE;
 extern uint8_t TEXTBOX_SCROLL;
-extern uint8_t TEXTBOX_CHAR_POSITION;
 
 inline void conversationTextboxInit();
-void conversationTextboxSetText(char *text, uint8_t length);
+void conversationTextboxSetText(char *text);
 inline void conversationTextboxUpdate();

src/main.c

@@ -166,10 +166,10 @@ void main() {
 
   // Alright begin the game logic here.
   // conversationQueueNext();
-  char DEBUG_TEXT[] = "HEY";
+  char DEBUG_TEXT[] = "Hello World\nThe quick brown fox jumps over the lazy dog. How now brown cow? The fitness gram pacer test is a";
-  uint8_t DEBUG_TEXT_LENGTH = 3;
+  // uint8_t DEBUG_TEXT_LENGTH = strlen(DEBUG_TEXT);
-  for(j = 0; j < DEBUG_TEXT_LENGTH; j++) DEBUG_TEXT[j] = DEBUG_TEXT[j] - 33 + 4;
+  // for(j = 0; j < DEBUG_TEXT_LENGTH; j++) DEBUG_TEXT[j] = DEBUG_TEXT[j] - 33 + 4;
-  conversationTextboxSetText(DEBUG_TEXT, DEBUG_TEXT_LENGTH);
+  conversationTextboxSetText(DEBUG_TEXT);
 
   // Begin the loop
   while(1) {