tetoris_c

public

Small block game in C

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Commit `a5d2e11a0a02`

Jaglekon <58274093+Jaglekon@users.noreply.github.com>2026-07-17 14:55 UTC

1 file changed+27-4

crude rotation

Modified file: main.c+27 additions−4 deletions@@ -156,8 +156,7 @@ int main () {
         current_piece.x + move + current_piece.size <= FULL_WIDTH
       ) {
        
-       bool is_valid = true;
-
+        bool is_valid = true;
 
         for (j = 0; j < current_piece.size; j++) {
           for (k = 0; k < current_piece.size; k++) {
@@ -185,7 +184,31 @@ int main () {
     
     if (rotate) {
       
-      direction new_direction = (current_piece.rotation + 1) % (LEFT + 1);
+      piece rotated = current_piece;
+
+      rotated.rotation = (current_piece.rotation + 1) % (LEFT + 1);
+
+      bool is_valid = true;
+
+      for(j = 0; j < rotated.size; j++) {
+        for (k = 0; k < rotated.size; k++) {
+
+          coord points = find_direction(rotated, k, j);
+
+          if (
+            rotated.piece[j][k] &&
+            playfield[rotated.y + points.y][rotated.x + points.x] != EMPTY
+          ) {
+            is_valid = false;
+          }
+        }
+      } 
+      
+      if (is_valid) {
+        current_piece = rotated;
+        draw = true;
+      }
+
     }
     
 
@@ -270,9 +293,9 @@ int main () {
 
     for (j = 0; j < FIELD_WIDTH; j++) {
       if (playfield[TOP_GAP][j + BORDER_WIDTH] > 0) {
-        printf("\033[2J\033[H");
         draw_board(current_piece, -1, is_piece);
         sleep(2);
+        printf("\033[2J\033[H");
         printf("HAHA LOSER\n");
         sleep(1);
         goto end;