EE2026/Soccer Field at main · kinneo/EE2026 · GitHub

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module soccer_field(input basys_clock, input reset, input [12:0] pixel_index,
    output reg [15:0] oled_data);

    //coordinates
    wire [6:0] x;
    wire [5:0] y;
    assign x = pixel_index % 96;
    assign y = pixel_index / 96;

    //circle formula
    wire [12:0] circle_formula;
    assign circle_formula = (x - 48)*(x - 48) + (y - 32)*(y - 32);
    wire [12:0] circle_formula_semi_left;
    assign circle_formula_semi_left = (x - 9)*(x - 9) + (y - 32)*(y - 32);
    wire [12:0] circle_formula_semi_right;
    assign circle_formula_semi_right = (x - 86)*(x - 86) + (y - 32)*(y - 32);

    always @ (posedge basys_clock)begin

        if (reset) oled_data <= 16'b00000_000000_00000;
        else begin

            //field border lines
            if ((x == 0 || x == 95) && (y >= 0 && y <= 63) ||
                (y == 0 || y == 63) && (x >= 0 && x <= 95))
                    oled_data <= 16'b11111_111111_11111;
            else if ((y == 63) && (x >= 0 && x <= 95))
                oled_data <= 16'b11111_111111_11111;

            //goal post line small
            else if (((x == 0 || x == 5) && (y >= 20 && y <= 44)) || //left vertical
                         ((y == 20 || y == 44) && (x >= 0 && x <= 5)) || //left horizontal
                         ((x == 90 || x == 95) && (y >= 20 && y <= 44)) || //right vertical
                         ((y == 20 || y == 44) && (x >= 90 && x <= 95))) //right horizontal
                    oled_data <= 16'b11111_111111_11111;

            //goal post line big
            else if (((x == 0 || x == 15) && (y >= 10 && y <= 54)) || //left vertical
                        ((y == 10 || y == 54) && (x >= 0 && x <= 15)) || //left horizontal
                        ((x == 80 || x == 95) && (y >= 10 && y <= 54)) || //right vertical
                        ((y == 10 || y == 54) && (x >= 80 && x <= 95))) //right horizontal
                    oled_data <= 16'b11111_111111_11111;

            //center line
            else if (x == 48 && y >= 0 && y <= 63)
                oled_data <= 16'b11111_111111_11111;

            //center circle
            else if (circle_formula <= 196 && circle_formula >= 169)
                oled_data <= 16'b11111_111111_11111;

            //semi circles
            else if ((circle_formula_semi_left <= 196 && circle_formula_semi_left >= 169) && (x >= 15)) //left semi circle
                oled_data <= 16'b11111_111111_11111;
            else if ((circle_formula_semi_right <= 196 && circle_formula_semi_right >= 169) && (x <= 80)) //right semi circle
                    oled_data <= 16'b11111_111111_11111;

            //soccer field green
            else
                oled_data <= 16'b00000_111111_00000;
//                16'b01111_111111_01111; //lighter green colour

        end

        //test for player on top of soccer field(outside the whole soccer field code block)
//        if (circle_formula <= 49) begin
//            oled_data <= 16'b11111_011111_00111;
//        end


    end //always @ end

endmodule