Extracted pop menu animation to a rect copying function for shop

2025-07-10 16:37:43 +03:00
parent 83af67c3ed
commit fb7b60431c
3 changed files with 123 additions and 62 deletions
@@ -1,22 +1,65 @@
-#include <tonc_core.h>
-#include <tonc_tte.h>
-
-#include "graphic_utils.h"
-
-void main_bg_se_clear_rect(Rect rect)
-{
-    for (int y = rect.top; y < rect.bottom; y++)
-    {
-        for (int x = rect.left; x < rect.right; x++)
-        {
-            // I also tried to use se_mat and it didn't work
-            memset16(&se_mem[MAIN_BG_SBB][x + SCREENBLOCK_ROW_LEN * y], 0x000, 1);
-        }
-    }
-}
-
-void tte_erase_rect_wrapper(Rect rect)
-{
-    tte_erase_rect(rect.left, rect.top, rect.right, rect.bottom);
-}
-
+#include <tonc_core.h>
+#include <tonc_tte.h>
+#include <tonc_math.h>
+
+#include "graphic_utils.h"
+
+/* 
+ * 
+ */
+const Rect FULL_SCREENBLOCK_RECT = { 0, 0, SE_ROW_LEN, SE_COL_LEN };
+
+
+// Clips a rect of screenblock entries to a specified rect
+static void clip_se_rect_to_bounding_rect(Rect* rect, const Rect* bounding_rect)
+{
+    rect->right = min(rect->right, SE_ROW_LEN);
+    rect->bottom = min(rect->bottom, SE_COL_LEN);
+    rect->left = max(rect->left, 0);
+    rect->top = max(rect->top, 0);
+}
+
+// Can be unstaticed if needed
+// Clips a rect of screenblock entries to screenblock boundaries
+// The bounding rect is not required to be within screenblock boundaries
+static void clip_se_rect_to_screenblock(Rect* rect)
+{
+    clip_se_rect_to_bounding_rect(rect, &FULL_SCREENBLOCK_RECT);
+}
+
+
+void main_bg_se_clear_rect(Rect se_rect)
+{
+    if (se_rect.left > se_rect.right)
+        return;
+    // Just to make sure we're not overflowing the boundaries
+    clip_se_rect_to_screenblock(&se_rect);
+
+    for (int y = se_rect.top; y < se_rect.bottom; y++)
+    {
+        memset16(&(se_mem[MAIN_BG_SBB][se_rect.left + SE_ROW_LEN * y]), 0x0000, se_rect.right - se_rect.left);
+    }
+}
+
+void main_bg_se_copy_rect_1_tile_up(Rect se_rect)
+{
+    if (se_rect.left > se_rect.right)
+        return;
+    
+    Rect bounding_rect = FULL_SCREENBLOCK_RECT;
+    bounding_rect.top = 1; // Since we're going up, need to clip to 1 to not overflow
+    clip_se_rect_to_bounding_rect(&se_rect, &bounding_rect);
+
+    for (int y = se_rect.top; y < se_rect.bottom; y++)
+    {
+        memcpy16(&se_mem[MAIN_BG_SBB][se_rect.left + SE_ROW_LEN * (y - 1)], 
+			     &se_mem[MAIN_BG_SBB][se_rect.left + SE_ROW_LEN * y], 
+                 se_rect.right - se_rect.left);
+    }   
+}
+
+void tte_erase_rect_wrapper(Rect rect)
+{
+    tte_erase_rect(rect.left, rect.top, rect.right, rect.bottom);
+}
+