Bruh? 😳

src/conversation/textbox.c

@@ -0,0 +1,126 @@
+/**
+ * Copyright (c) 2022 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "textbox.h"
+
+char *TEXTBOX_TEXT;
+uint8_t TEXTBOX_TEXT_LENGTH;
+uint8_t TEXTBOX_STATE;
+uint8_t TEXTBOX_SCROLL;
+uint8_t TEXTBOX_TILES[TEXTBOX_TILES_MAX];
+
+void conversationTextboxInit() {
+  uint8_t i;
+
+  // Reset textbox state
+  TEXTBOX_TEXT = NULL;
+  TEXTBOX_STATE = 0;
+  TEXTBOX_TEXT_LENGTH = 0;
+  TEXTBOX_SCROLL = 0;
+
+  // Setup window data
+  move_win(7, SCREENHEIGHT - (TEXTBOX_HEIGHT_IN_TILES * 8));
+  set_win_data(FONT_DATA_POSITION, FONT_IMAGE_TILES, FONT_IMAGE);
+  set_win_data(BORDER_DATA_POSITION, BORDER_IMAGE_TILES, BORDER_IMAGE);
+
+  // Corners
+  TEXTBOX_TILES[0] = BORDER_TILE_TOP_LEFT;
+  TEXTBOX_TILES[TEXTBOX_WIDTH_IN_TILES-1] = BORDER_TILE_TOP_RIGHT;
+  TEXTBOX_TILES[TEXTBOX_TILES_MAX-1] = BORDER_TILE_BOTTOM_RIGHT;
+  TEXTBOX_TILES[TEXTBOX_TILES_MAX-TEXTBOX_WIDTH_IN_TILES] = BORDER_TILE_BOTTOM_LEFT;
+
+  // Edges
+  for(i = 1; i < TEXTBOX_WIDTH_IN_TILES - 1; i++) {
+    TEXTBOX_TILES[i] = BORDER_TILE_TOP_CENTER;
+    TEXTBOX_TILES[TEXTBOX_TILES_MAX - 1 - i] = BORDER_TILE_BOTTOM_CENTER;
+  }
+  for(i = 1; i < TEXTBOX_HEIGHT_IN_TILES - 1; i++) {
+    TEXTBOX_TILES[TEXTBOX_WIDTH_IN_TILES * i] = BORDER_TILE_CENTER_LEFT;
+    TEXTBOX_TILES[TEXTBOX_WIDTH_IN_TILES * (i+1) - 1] = BORDER_TILE_CENTER_RIGHT;
+  }
+}
+
+void conversationTextboxSetText(char *text, uint8_t length) {
+  uint8_t i, j;
+
+  // Reset textbox state
+  TEXTBOX_TEXT = text;
+  TEXTBOX_TEXT_LENGTH = length;
+  TEXTBOX_STATE = TEXTBOX_STATE_VISIBLE;
+  TEXTBOX_SCROLL = 0;
+  
+  // Fill blank characters
+  for(j = 0; j < TEXTBOX_CHAR_ROWS; j++) {
+    for(i = 0; i < TEXTBOX_CHARS_PER_ROW ; i++) {
+      TEXTBOX_TILES[(i+1) + ((j + 1) * TEXTBOX_WIDTH_IN_TILES)] = (
+        TEXTBOX_TILE_BLANK
+      );
+    }
+  }
+
+  set_win_tiles(
+    0, 0,
+    TEXTBOX_WIDTH_IN_TILES, TEXTBOX_HEIGHT_IN_TILES,
+    TEXTBOX_TILES
+  );
+  SHOW_WIN;
+}
+
+void conversationTextboxUpdate() {
+  uint8_t i, j;
+
+  // Is the textbox visible?
+  if(!(TEXTBOX_STATE & TEXTBOX_STATE_VISIBLE)) return;
+
+  // Has the textbox finished scrolling?
+  if(TEXTBOX_STATE & TEXTBOX_STATE_SCROLLED) {
+    // Is the player attempting to close the textbox?
+    if(INPUT_STATE & J_A) {
+      TEXTBOX_STATE &= ~TEXTBOX_STATE_VISIBLE;
+      HIDE_WIN;
+      conversationQueueNext();
+    }
+    return;
+  }
+
+  // Move to the next character.
+  TEXTBOX_SCROLL++;
+  j = TEXTBOX_WIDTH_IN_TILES + 1;
+  for(i = 0; i < TEXTBOX_SCROLL; i++) {
+    // Whitespace, do nothing.
+    if(TEXTBOX_TEXT[i] == ' ') {
+      j++;
+      continue;
+    }
+
+    // Newline character, move the next tile to the next row.
+    if(TEXTBOX_TEXT[i] == '\n') {
+      j = (
+        (j / TEXTBOX_WIDTH_IN_TILES)*TEXTBOX_WIDTH_IN_TILES
+      ) + TEXTBOX_WIDTH_IN_TILES + 1;
+      continue;
+    }
+
+    // Reveal the next character
+    TEXTBOX_TILES[j] = TEXTBOX_TEXT[i];
+    j++;
+  }
+
+  // Update the window tilemap
+  set_win_tiles(
+    0, 0,
+    TEXTBOX_WIDTH_IN_TILES,
+    TEXTBOX_HEIGHT_IN_TILES,
+    TEXTBOX_TILES
+  );
+
+  // 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;
+  }
+}