From 586942c66f7d4aa71f0b60bb5de9ae19266f0cad Mon Sep 17 00:00:00 2001
From: Physick <96335032+DegustatorPonos@users.noreply.github.com>
Date: Wed, 8 Jul 2026 18:39:59 +0500
Subject: scrolling

---
 src/puzzles/puzzle.c     |  2 +-
 src/scenes/puzzleScene.c |  3 ++-
 src/ui_elements/UI.c     | 32 +++++++++++++++++++++++++++-----
 src/ui_elements/UI.h     |  2 +-
 4 files changed, 31 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/puzzles/puzzle.c b/src/puzzles/puzzle.c
index 8c2c3de..1bfb6be 100644
--- a/src/puzzles/puzzle.c
+++ b/src/puzzles/puzzle.c
@@ -7,7 +7,7 @@ Puzzle *GetTestPuzzle() {
     if (outp == NULL) return NULL;
 
     outp->Name = strdup("Test puzzle");
-    outp->Description = strdup("In this puzzle you will have to return the input string");
+    outp->Description = strdup("In this puzzle you will have to return the input string\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\n-\nThis is a line that should be somewhere down");
 
     return outp;
 }
diff --git a/src/scenes/puzzleScene.c b/src/scenes/puzzleScene.c
index 1706ff2..70a3667 100644
--- a/src/scenes/puzzleScene.c
+++ b/src/scenes/puzzleScene.c
@@ -6,6 +6,7 @@
 
 typedef struct {
     Puzzle *PuzzlePtr;
+    int scroll;
 } puzzleSceneData;
 
 
@@ -75,7 +76,7 @@ bool drawPuzzleScene(void *self) {
     DrawRecBordered(pane2, WHITE, COLORSCHEME_ORANGE, BORDER);
 
     DrawTextInRec(pane1, data->PuzzlePtr->Description, 
-            GetMainFont(), 20, COLORSCHEME_BROWN);
+            GetMainFont(), 20, COLORSCHEME_BROWN, 3, &data->scroll);
 
     return true;
 }
diff --git a/src/ui_elements/UI.c b/src/ui_elements/UI.c
index 7e00aa3..139f746 100644
--- a/src/ui_elements/UI.c
+++ b/src/ui_elements/UI.c
@@ -3,6 +3,7 @@
 
 const int MAX_LINES = 256;
 const int SPACING_H = 1;
+const float SCROLL_SENC = 10;
 
 void DrawRecBordered(Rectangle rec, Color bg, Color border_color, int border_width) {
     DrawRectangleRounded(rec, 0.015f, 8, bg); 
@@ -19,10 +20,11 @@ int CalculateSpans(Rectangle rec, char *text, Font *font, int height, int *spans
     int ptr = 0, span_ptr = 1, last_space_ptr;
     float acc = 0;
     while (text[ptr] != 0x0) {
-        float char_width = MeasureChar(font, height, text[ptr]);
+        char symbol = text[ptr];
+        float char_width = MeasureChar(font, height, symbol);
         acc += char_width + SPACING_H;
-        if (text[ptr] == ' ') last_space_ptr = ptr;
-        if (acc > rec.width) {
+        if (symbol == ' ' || symbol == '\n') last_space_ptr = ptr;
+        if (acc > rec.width || symbol == '\n') {
             spans[span_ptr] = last_space_ptr + 1;
             ptr = last_space_ptr;
             span_ptr++;
@@ -33,8 +35,17 @@ int CalculateSpans(Rectangle rec, char *text, Font *font, int height, int *spans
     return span_ptr + 1;
 }
 
-void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color color) {
+bool IsMouseInRec(Rectangle rec) {
+    Vector2 MousePos = GetMousePosition();
+    return CheckCollisionPointRec(MousePos, rec);
+}
+
+void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color color, float padding, int *scroll) {
     int spans[MAX_LINES];
+    rec.x += padding;
+    rec.y += padding;
+    rec.width -= 2 * padding;
+    rec.height -= 2 * padding;
     int lines = CalculateSpans(rec, text, font, height, spans);
 
     if (lines == 2) {
@@ -43,7 +54,17 @@ void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color colo
         return;
     }
 
-    int vertical_acc = rec.y;
+    int vertical_acc = rec.y - *scroll;
+    int text_height = lines * height;
+    int max_scroll = text_height - rec.height;
+
+    if (text_height >= rec.height && IsMouseInRec(rec)) {
+        *scroll -= GetMouseWheelMove() * SCROLL_SENC;
+        if (*scroll < 0) *scroll = 0;
+        if (*scroll > max_scroll) *scroll = max_scroll;
+    }
+
+    BeginScissorMode(rec.x, rec.y, rec.width, rec.height);
     for (int i = 1; i < lines; i++) {
         Vector2 pos = { .x = rec.x, .y = vertical_acc };
         char *line_start = text + spans[i-1];
@@ -53,4 +74,5 @@ void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color colo
                 pos, height, SPACING_H, color);
         vertical_acc += height;
     }
+    EndScissorMode();
 }
diff --git a/src/ui_elements/UI.h b/src/ui_elements/UI.h
index b98ece0..5868efe 100644
--- a/src/ui_elements/UI.h
+++ b/src/ui_elements/UI.h
@@ -4,6 +4,6 @@
 #define UI_ELEMENTS_H
 
 void DrawRecBordered(Rectangle rec, Color bg, Color border_color, int border_width);
-void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color color);
+void DrawTextInRec(Rectangle rec, char *text, Font *font, int height, Color color, float padding, int *scroll);
 
 #endif // UI_ELEMENTS_H
-- 
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