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242module ball_controller_furkan #(
parameter PLAYER_RADIUS,
parameter BALL_RADIUS,
parameter MOVEMENT_FREQUENCY
)
(
input clk,
input game_initiated,
input game_over,
input [9:0] team1_ver_pos, // 240
input [9:0] team2_ver_pos, // 560
input [9:0] team1_hor_pos, // 380
input [9:0] team2_hor_pos, // 180
output reg signed [10:0] x_position,
output reg signed [10:0] y_position,
output reg blue_score_up,
output reg red_score_up
);
reg signed [4:0] x_dir, y_dir;
integer counter;
integer touching_player = (PLAYER_RADIUS + BALL_RADIUS + 2) ** 2;
reg state;
parameter dead = 'd0;
parameter alive = 'd1;
initial begin
state = dead;
counter = 0;
x_position = 400;
y_position = 275;
x_dir = 2;
y_dir = 2;
blue_score_up = 0;
red_score_up = 0;
end
always @(posedge clk) begin
if (counter < MOVEMENT_FREQUENCY) begin
counter <= counter + 'd1;
end else begin
counter <= 0;
end
end
always @(posedge clk) begin
if (game_initiated == 0) begin
state <= dead;
end else begin
state <= alive;
end
end
always @(posedge clk) begin
if (state == dead) begin
x_position <= 400;
y_position <= 275;
end else if (state == alive && counter == 'd28) begin
x_position <= x_position + x_dir;
y_position <= y_position + y_dir;
end
// wall collisions
if ((y_position) < (36 + BALL_RADIUS)) begin // top wall
y_dir <= - y_dir;
y_position <= y_position + 5;
end else if ((y_position) > (510 - BALL_RADIUS)) begin // bottom wall
y_dir <= - y_dir;
y_position <= y_position - 5;
end else if ((x_position) < (150 + BALL_RADIUS)) begin // left wall
x_dir <= - x_dir;
x_position <= x_position + 5;
end else if (x_position > (660 - BALL_RADIUS)) begin // right wall
x_dir <= - x_dir;
x_position <= x_position - 5;
end
// ball collisions blue vertical
if ((((y_position - team1_ver_pos)**2)+((x_position - 240)**2) < touching_player)) begin
if (x_position > 240 + 28) begin // east side
x_dir <= - x_dir;
x_position <= x_position + 5;
end else if (x_position < 240 - 28) begin // west side
x_dir <= - x_dir;
x_position <= x_position - 5;
end else if (y_position > team1_ver_pos + 28) begin // south side
y_dir <= - y_dir;
y_position <= y_position + 5;
end else if (y_position < team1_ver_pos - 28) begin // north side
y_dir <= - y_dir;
y_position <= y_position - 5;
end else begin
if ((x_position > 240) && (y_position < team1_ver_pos)) begin // northeast side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position + 5;
y_position <= y_position - 5;
end else if ((x_position > 240) && (y_position > team1_ver_pos)) begin // southeast side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position + 5;
y_position <= y_position + 5;
end else if ((x_position < 240) && (y_position > team1_ver_pos)) begin // southwest side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position - 5;
y_position <= y_position + 5;
end else if ((x_position < 240) && (y_position < team1_ver_pos)) begin // northwest side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position - 5;
y_position <= y_position - 5;
end
end
end
// ball collisions blue horizontal
if ((((y_position - 380)**2)+((x_position - team1_hor_pos)**2) < touching_player)) begin
if (x_position > team1_hor_pos + 28) begin // east side
x_dir <= - x_dir;
x_position <= x_position + 5;
end else if (x_position < team1_hor_pos - 28) begin // west side
x_dir <= - x_dir;
x_position <= x_position - 5;
end else if (y_position > 380 + 28) begin // south side
y_dir <= - y_dir;
y_position <= y_position + 5;
end else if (y_position < 380 - 28) begin // north side
y_dir <= - y_dir;
y_position <= y_position - 5;
end else begin
if ((x_position > team1_hor_pos) && (y_position < 380)) begin // northeast side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position + 5;
y_position <= y_position - 5;
end else if ((x_position > team1_hor_pos) && (y_position > 380)) begin // southeast side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position + 5;
y_position <= y_position + 5;
end else if ((x_position < team1_hor_pos) && (y_position > 380)) begin // southwest side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position - 5;
y_position <= y_position + 5;
end else if ((x_position < team1_hor_pos) && (y_position < 380)) begin // northwest side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position - 5;
y_position <= y_position - 5;
end
end
end
// ball collisions red vertical
if ((((y_position - team2_ver_pos)**2)+((x_position - 560)**2) < touching_player)) begin
if (x_position > 560 + 28) begin // east side
x_dir <= - x_dir;
x_position <= x_position + 5;
end else if (x_position < 560 - 28) begin // west side
x_dir <= - x_dir;
x_position <= x_position - 5;
end else if (y_position > team2_ver_pos + 28) begin // south side
y_dir <= - y_dir;
y_position <= y_position + 5;
end else if (y_position < team2_ver_pos - 28) begin // north side
y_dir <= - y_dir;
y_position <= y_position - 5;
end else begin
if ((x_position > 560) && (y_position < team2_ver_pos)) begin // northeast side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position + 5;
y_position <= y_position - 5;
end else if ((x_position > 560) && (y_position > team2_ver_pos)) begin // southeast side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position + 5;
y_position <= y_position + 5;
end else if ((x_position < 560) && (y_position > team2_ver_pos)) begin // southwest side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position - 5;
y_position <= y_position + 5;
end else if ((x_position < 560) && (y_position < team2_ver_pos)) begin // northwest side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position - 5;
y_position <= y_position - 5;
end
end
end
// ball collisions red horizontal
if ((((y_position - 180)**2)+((x_position - team2_hor_pos)**2) < touching_player)) begin
if (x_position > team2_hor_pos + 28) begin // east side
x_dir <= - x_dir;
x_position <= x_position + 5;
end else if (x_position < team2_hor_pos - 28) begin // west side
x_dir <= - x_dir;
x_position <= x_position - 5;
end else if (y_position > 180 + 28) begin // south side
y_dir <= - y_dir;
y_position <= y_position + 5;
end else if (y_position < 180 - 28) begin // north side
y_dir <= - y_dir;
y_position <= y_position - 5;
end else begin
if ((x_position > team2_hor_pos) && (y_position < 180)) begin // northeast side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position + 5;
y_position <= y_position - 5;
end else if ((x_position > team2_hor_pos) && (y_position > 180)) begin // southeast side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position + 5;
y_position <= y_position + 5;
end else if ((x_position < team2_hor_pos) && (y_position > 180)) begin // southwest side
x_dir <= y_dir;
y_dir <= x_dir;
x_position <= x_position - 5;
y_position <= y_position + 5;
end else if ((x_position < team2_hor_pos) && (y_position < 180)) begin // northwest side
x_dir <= -y_dir;
y_dir <= -x_dir;
x_position <= x_position - 5;
y_position <= y_position - 5;
end
end
end
end
endmodule