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-rw-r--r--lib/cetris.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/cetris.h b/lib/cetris.h
index cc4659c..bd8a375 100644
--- a/lib/cetris.h
+++ b/lib/cetris.h
@@ -32,7 +32,7 @@ typedef struct {
int8_t y;
} vec2;
-typedef uint8_t piece_matrix[4];
+typedef int8_t piece_matrix[4];
enum {
MINO_O,