Add initialization of all member variables.

Author: sago007

source/code/BlockGameSdl.hpp

@@ -668,16 +668,17 @@ class BlockGameSdl : public BlockGame {
 	sago::SagoTextField player_speed;
 
 	//Old Stage Clear Buble
-	int oldBubleX;
-	int oldBubleY;
+	int oldBubleX = 0;
+	int oldBubleY = 0;
 
 	std::string infostring;
 	std::string infostringName;
 	std::string controldBoxText;
 
 
 private:
-	int topx, topy;
+	int topx = 0;
+	int topy = 0;
 	sago::SagoTextField scoreLabel;
 	sago::SagoTextField timeLabel;
 	sago::SagoTextField chainLabel;