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score_updater.sv
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module score_updater(update_done, score_board, gameover, winning, state, player_symbol , clk);
output reg update_done;
output reg [7:0] score_board [5:0];
output gameover;
input [5:0] winning;
input [2:0] state;
input player_symbol;
input clk;
reg [3:0] displays [5:0];
reg [3:0] computer_score = 0;
reg [3:0] player_score = 0;
reg [3:0] round_number = 1;
reg [5:0] enable = 6'b111_111;
reg [2:0] clk_counter = 0;
reg [5:0] flash_counter = 0;
reg flash_clk;
reg endgame = 0;
reg flash = 0; //bool for enabling flash
reg start_update;
parameter s_updating_score = 3'b101, s_start_game = 3'b000 ,s_refreshing = 3'b100, s_checking = 3'b011;
parameter C_symbol = 4'd10 , P_symbol = 4'd11 , r_symbol = 4'd12;
/* //for debugging
seven_seg_dec player_segment (score_board[5], winning[5] , enable[5]);
seven_seg_dec displays[4]_segment (score_board[4], winning[4] , enable[4]);
seven_seg_dec computer_segment (score_board[3], winning[3] , enable[3]);
seven_seg_dec computer_score_segment (score_board[2], winning[2] , enable[2]);
seven_seg_dec round_segment (score_board[1], winning[1] , enable[1]);
seven_seg_dec round_number_segment (score_board[0], winning[0] , enable[0]);
*/
seven_seg_dec player_segment (score_board[0], displays[5] , enable[5]);
seven_seg_dec displays_player_score (score_board[1], displays[4] , enable[4]);
seven_seg_dec computer_segment (score_board[2], displays[3] , enable[3]);
seven_seg_dec computer_score_segment (score_board[3], displays[2] , enable[2]);
seven_seg_dec round_segment (score_board[4], displays[1] , enable[1]);
seven_seg_dec round_number_segment (score_board[5], displays[0] , enable[0]);
always @(posedge clk)
begin
start_update <= 1;
if(state == s_start_game)
begin
player_score <= 0;
computer_score <= 0;
round_number <= 1;
displays[5] <= P_symbol;
displays[4] <= player_score;
displays[3] <= C_symbol;
displays[2] <= computer_score;
displays[1] <= r_symbol;
displays[0] <= round_number;
start_update <= 0;
gameover <= 0;
end
else
if(state == s_updating_score )
begin
displays[4] <= player_score;
displays[2] <= computer_score;
displays[0] <= round_number;
start_update <= 0;
if(displays[4] == 3 | displays[2] == 3)
begin
gameover <= 1;
end
if(flash == 1)
begin
if(flash_counter < 30)
begin
flash_counter <= flash_counter + 1;
enable[0] <= flash_clk;
// enable[1] <= flash_clk;
enable[2] <= flash_clk;
// enable[3] <= flash_clk;
enable[4] <= flash_clk;
// enable[5] <= flash_clk;
end
else
begin
flash_counter <= 0;
flash <= 0;
start_update <= 0;
enable <= 6'b111_111;
end
end
end
else
if(state == s_checking)
begin
if(winning[5] == 1 & displays[0] == round_number)
begin
round_number <= round_number + 1;
flash <= 1;
end
if(winning[4] == 1)// & flash == 0 & endgame == 0)
begin
if(player_symbol == winning[3] & displays[4] == player_score & displays[2] == computer_score)
player_score <= player_score + 1;
else
computer_score <= computer_score + 1;
start_update <= 0;
end
update_done <= 0;
gameover <= 0;
end
/*
if(flash == 0 & state == s_updating_score & (displays[4] != player_score | displays[2] != computer_score | displays[0] != round_number) ) //& displays[4] != 0 & displays[2] != 0 & displays[0] != 1)
begin
displays[4] <= player_score;
displays[2] <= computer_score;
displays[0] <= round_number;
flash <= 1;
end
*/
if(start_update == 0 & flash == 0 & endgame == 0 & displays[4] == player_score & displays[2] == computer_score & displays[0] == round_number)
begin
update_done <= 1;
end
//-------------------------
//clock
if(clk_counter < 4)
clk_counter <= clk_counter + 1;
else
begin
flash_clk = ~ flash_clk;
clk_counter <= 0;
end
end
endmodule