Add basic textbox

src/main.c

@@ -19,24 +19,32 @@ along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
 #include "raylib.h"
+#include "ui/text_box.h"
 
 int main(void)
 {
-    const int screenWidth = 800;
-    const int screenHeight = 600;
+    const int screenWidth = 1280;
+    const int screenHeight = 720;
 
     InitWindow(screenWidth, screenHeight, "Vinora Engine");
-
     SetTargetFPS(60);
 
+    TextBox dialogueBox;
+    TextBoxInit(&dialogueBox, screenWidth, screenHeight);
+
+    TextBoxSetText(&dialogueBox, "Alice",
+                   "Hello from Vinora Engine textbox!\n\n"
+                   "D-d-do you like it or something? :3");
+
     while (!WindowShouldClose())
     {
         BeginDrawing();
-        ClearBackground(RAYWHITE);
-        DrawText("Vinora Engine", 250, 280, 40, DARKGRAY);
+            ClearBackground((Color){20, 25, 40, 255});
+            TextBoxDraw(&dialogueBox);
         EndDrawing();
     }
 
+    TextBoxCleanup(&dialogueBox);
     CloseWindow();
     return 0;
 }

src/ui/text_box.c

@@ -0,0 +1,89 @@
+#include "text_box.h"
+#include <stdlib.h>
+#include <string.h>
+
+static char *strdup(const char *s)
+{
+    if (!s)
+        return NULL;
+    size_t n = strlen(s) + 1;
+    char *p = malloc(n);
+    if (!p)
+        return NULL;
+    memcpy(p, s, n);
+    return p;
+}
+
+void TextBoxInit(TextBox *tb, int screenWidth, int screenHeight)
+{
+    tb->rect = (Rectangle){
+        .x = 40,
+        .y = screenHeight - 180,
+        .width = screenWidth - 80,
+        .height = 160};
+
+    tb->bg_color = (Color){0, 0, 0, 220};
+    tb->border_color = (Color){255, 255, 255, 180};
+    tb->border_thickness = 3;
+
+    tb->font = GetFontDefault();
+    tb->font_size = 24;
+    tb->text_color = WHITE;
+    tb->name_color = YELLOW;
+
+    memset(tb->name, 0, sizeof(tb->name));
+    tb->text = NULL;
+    tb->max_text_length = 1024;
+}
+
+void TextBoxSetText(TextBox *tb, const char *name, const char *text)
+{
+    if (name)
+        strncpy(tb->name, name, 63);
+    else
+        tb->name[0] = '\0';
+
+    if (tb->text)
+        free(tb->text);
+    tb->text = strdup(text ? text : "");
+}
+
+void TextBoxDraw(TextBox *tb)
+{
+    DrawRectangleRec(tb->rect, tb->bg_color);
+    DrawRectangleLinesEx(tb->rect, tb->border_thickness, tb->border_color);
+
+    if (tb->name[0] != '\0')
+    {
+        Vector2 nameSize = MeasureTextEx(tb->font, tb->name,
+                                         tb->font_size + 2, 1);
+        Rectangle nameRect = {
+            tb->rect.x + 20,
+            tb->rect.y - 30,
+            nameSize.x + 24,
+            32};
+
+        DrawRectangleRec(nameRect, tb->bg_color);
+        DrawRectangleLinesEx(nameRect, 3, tb->border_color);
+
+        DrawTextEx(tb->font, tb->name,
+                   (Vector2){nameRect.x + 12, nameRect.y + 6},
+                   tb->font_size + 2, 1, tb->name_color);
+    }
+
+    if (tb->text)
+    {
+        DrawTextEx(tb->font, tb->text,
+                   (Vector2){tb->rect.x + 25, tb->rect.y + 25},
+                   tb->font_size, 1.2f, tb->text_color);
+    }
+}
+
+void TextBoxCleanup(TextBox *tb)
+{
+    if (tb->text)
+    {
+        free(tb->text);
+        tb->text = NULL;
+    }
+}

src/ui/text_box.h

@@ -0,0 +1,29 @@
+#ifndef TEXT_BOX_H
+#define TEXT_BOX_H
+
+#include "raylib.h"
+
+typedef struct
+{
+    Rectangle rect;
+    Color bg_color;
+    Color border_color;
+    int border_thickness;
+
+    Font font;
+    int font_size;
+    Color text_color;
+
+    char name[256];
+    Color name_color;
+
+    char *text;
+    int max_text_length;
+} TextBox;
+
+void TextBoxInit(TextBox *tb, int screenWidth, int screenHeight);
+void TextBoxSetText(TextBox *tb, const char *name, const char *text);
+void TextBoxDraw(TextBox *tb);
+void TextBoxCleanup(TextBox *tb);
+
+#endif