基于FPGA的五子棋小游戏

有一些说明：

1、本文是基于VGA的显示小游戏，主要为VGA显示的拓展应用；

2、为适应不同显示屏的分辨率，棋盘确定为10X10的黑线白底的方格；

3、下棋主要用棋格颜色变化来反映，通过移位按键确定数组位置来表示待选择的方格，确定键按下改变对应方格像素值（下棋）；

4、通过数组来保存每次按下的颜色，避免每次按下所有棋子颜色全变；

5、阿汪先生用的FPGA板子型号为：xc7a35tcsg324-1 ；

6、相关代码段后有注释，以便读者理解；

7、如有帮助，请点个赞，谢谢！（手动滑稽）

`timescale 1ns / 1psmodule vga(clk,yidong,disp_rgb,hsync,vsync,flag);input clk;//系统时钟input [4:0] yidong;//四个按键input[0:0] flag;output[11:0] disp_rgb;outputhsync,vsync;reg[11:0] hcount; //行信号reg[11:0] vcount;//列信号reg[11:0] data;reg[11:0] h_dat; //12位的色素显示变量reg[11:0] z_dat;reg[11:0] y_dat;reg[11:0] v_dat;reg[11:0] x_dat;reg over=0;//游戏是否结束标志wire hcount_ov;wire vcount_ov;wire dat_act;wire hsync;wire vsync;reg vga_clk=0;reg clk_50ms=0;reg cnt_clk=0;localparam DVSR=7000000;//分频计数的阈值reg [28:0] js;//分频信号的中间计数变量reg [9:0] R [9:0];//10X10的数组reg [99:0] U;//每个格子的状态标志reg[9:0]xsync,ysync;wire [11:0]x_pos, y_pos;wire [9:0]a;wire [9:0]b;//表示每个格子在100个格子的位置wire [9:0]c;wire [9:0]d;wire [99:0] x;assign a=(hcount-220)/40;assign b=(vcount-70)/40;//计算每个格子在100个格子的位置assign c=(ball_x_pos-240)/40;assign d=(ball_y_pos-90)/40;//一百个格子嘛assign x[0] = ((hcount - 240)*(hcount - 240)+(vcount - 90)*(vcount - 90))<=400;assign x[1] =((hcount - 280)*(hcount - 280)+(vcount - 90)*(vcount - 90))<=400;assign x[2] =( (hcount - 320)*(hcount - 320)+(vcount - 90)*(vcount - 90))<=400;assign x[3] = ((hcount - 360)*(hcount - 360)+(vcount - 90)*(vcount - 90))<=400;assign x[4] =( (hcount - 400)*(hcount - 400)+(vcount - 90)*(vcount - 90))<=400;assign x[5] = ((hcount - 440)*(hcount - 440)+(vcount - 90)*(vcount - 90))<=400;assign x[6] = ((hcount - 480)*(hcount - 480)+(vcount - 90)*(vcount - 90))<=400;assign x[7] = ((hcount - 520)*(hcount - 520)+(vcount - 90)*(vcount - 90))<=400;assign x[8] =( (hcount - 560)*(hcount - 560)+(vcount - 90)*(vcount - 90))<=400;assign x[9] = ((hcount - 600)*(hcount - 600)+(vcount - 90)*(vcount - 90))<=400;assign x[10] = (hcount - 240)*(hcount - 240)+(vcount - 130)*(vcount - 130)<=400;assign x[11] = (hcount - 280)*(hcount - 280)+(vcount - 130)*(vcount - 130)<=400;assign x[12] = (hcount - 320)*(hcount - 320)+(vcount - 130)*(vcount - 130)<=400;assign x[13] = (hcount - 360)*(hcount -360)+(vcount - 130)*(vcount - 130)<=400;assign x[14] = (hcount - 400)*(hcount - 400)+(vcount - 130)*(vcount - 130)<=400;assign x[15] = (hcount - 440)*(hcount - 440)+(vcount - 130)*(vcount - 130)<=400;assign x[16] = (hcount - 480)*(hcount -480)+(vcount - 130)*(vcount - 130)<=400;assign x[17] = (hcount -520)*(hcount - 520)+(vcount - 130)*(vcount - 130)<=400;assign x[18] = (hcount - 560)*(hcount - 560)+(vcount - 130)*(vcount - 130)<=400;assign x[19] = (hcount - 600)*(hcount - 600)+(vcount - 130)*(vcount - 130)<=400;assign x[20] = (hcount - 240)*(hcount - 240)+(vcount -170)*(vcount - 170)<=400;assign x[21] = (hcount - 280)*(hcount - 280)+(vcount -170)*(vcount - 170)<=400;assign x[22] = (hcount -320)*(hcount - 320)+(vcount -170)*(vcount - 170)<=400;assign x[23] = (hcount -360)*(hcount - 360)+(vcount -170)*(vcount - 170)<=400;assign x[24] =(hcount -400)*(hcount - 400)+(vcount -170)*(vcount - 170)<=400;assign x[25] =(hcount - 440)*(hcount - 440)+(vcount -170)*(vcount - 170)<=400;assign x[26] = (hcount - 480)*(hcount - 480)+(vcount -170)*(vcount - 170)<=400;assign x[27] = (hcount - 520)*(hcount - 520)+(vcount -170)*(vcount - 170)<=400;assign x[28] =(hcount - 560)*(hcount -560)+(vcount -170)*(vcount - 170)<=400;assign x[29] =(hcount - 600)*(hcount - 600)+(vcount -170)*(vcount - 170)<=400;assign x[30] = (hcount - 240)*(hcount - 240)+(vcount - 210)*(vcount - 210)<=400;assign x[31] =(hcount - 280)*(hcount - 280)+(vcount - 210)*(vcount - 210)<=400;assign x[32] =(hcount - 320)*(hcount - 320)+(vcount - 210)*(vcount - 210)<=400;assign x[33] = (hcount - 360)*(hcount - 360)+(vcount - 210)*(vcount - 210)<=400;assign x[34] =(hcount - 400)*(hcount - 400)+(vcount - 210)*(vcount - 210)<=400;assign x[35] = (hcount - 440)*(hcount - 440)+(vcount - 210)*(vcount - 210)<=400;assign x[36] = (hcount - 480)*(hcount -480)+(vcount - 210)*(vcount - 210)<=400;assign x[37] = (hcount - 520)*(hcount - 520)+(vcount - 210)*(vcount - 210)<=400;assign x[38] =(hcount - 560)*(hcount - 560)+(vcount - 210)*(vcount - 210)<=400;assign x[39] =(hcount - 600)*(hcount - 600)+(vcount - 210)*(vcount - 210)<=400;assign x[40] = (hcount - 240)*(hcount - 240)+(vcount - 250)*(vcount - 250)<=400;assign x[41] = (hcount - 280)*(hcount - 280)+(vcount - 250)*(vcount - 250)<=400;assign x[42] = (hcount - 320)*(hcount - 320)+(vcount - 250)*(vcount - 250)<=400;assign x[43] = (hcount - 360)*(hcount - 360)+(vcount - 250)*(vcount - 250)<=400;assign x[44] = (hcount - 400)*(hcount - 400)+(vcount - 250)*(vcount - 250)<=400;assign x[45] = (hcount - 440)*(hcount - 440)+(vcount - 250)*(vcount - 250)<=400;assign x[46] = (hcount - 480)*(hcount -480)+(vcount - 250)*(vcount - 250)<=400;assign x[47] = (hcount - 520)*(hcount - 520)+(vcount - 250)*(vcount - 250)<=400;assign x[48] = (hcount - 560)*(hcount -560)+(vcount - 250)*(vcount - 250)<=400;assign x[49] = (hcount - 600)*(hcount -600)+(vcount - 250)*(vcount - 250)<=400;assign x[50] = (hcount - 240)*(hcount - 240)+(vcount - 290)*(vcount - 290)<=400;assign x[51] = (hcount - 280)*(hcount - 280)+(vcount - 290)*(vcount - 290)<=400;assign x[52] = (hcount - 320)*(hcount - 320)+(vcount - 290)*(vcount - 290)<=400;assign x[53] = (hcount - 360)*(hcount - 360)+(vcount - 290)*(vcount - 290)<=400;assign x[54] = (hcount - 400)*(hcount -400)+(vcount - 290)*(vcount - 290)<=400;assign x[55] = (hcount - 440)*(hcount - 440)+(vcount - 290)*(vcount - 290)<=400;assign x[56] = (hcount -480)*(hcount - 480)+(vcount - 290)*(vcount - 290)<=400;assign x[57] = (hcount - 520)*(hcount - 520)+(vcount - 290)*(vcount - 290)<=400;assign x[58] = (hcount - 560)*(hcount - 560)+(vcount - 290)*(vcount - 290)<=400;assign x[59] = (hcount - 600)*(hcount - 600)+(vcount - 290)*(vcount - 290)<=400;assign x[60] = (hcount - 240)*(hcount - 240)+(vcount -330)*(vcount - 330)<=400;assign x[61] = (hcount - 280)*(hcount - 280)+(vcount -330)*(vcount - 330)<=400;assign x[62] = (hcount -320)*(hcount - 320)+(vcount -330)*(vcount - 330)<=400;assign x[63] = (hcount - 360)*(hcount - 360)+(vcount -330)*(vcount - 330)<=400;assign x[64] = (hcount - 400)*(hcount - 400)+(vcount -330)*(vcount - 330)<=400;assign x[65] =(hcount - 440)*(hcount - 440)+(vcount -330)*(vcount - 330)<=400;assign x[66] = (hcount - 480)*(hcount - 480)+(vcount -330)*(vcount - 330)<=400;assign x[67] =(hcount - 520)*(hcount -520)+(vcount -330)*(vcount - 330)<=400;assign x[68] = (hcount -560)*(hcount - 560)+(vcount -330)*(vcount - 330)<=400;assign x[69] =(hcount - 600)*(hcount - 600)+(vcount -330)*(vcount - 330)<=400;assign x[70] = (hcount - 240)*(hcount - 240)+(vcount - 370)*(vcount - 370)<=400;assign x[71] = (hcount - 280)*(hcount - 280)+(vcount - 370)*(vcount - 370)<=400;assign x[72] =(hcount - 320)*(hcount - 320)+(vcount - 370)*(vcount - 370)<=400;assign x[73] =(hcount -360)*(hcount - 360)+(vcount - 370)*(vcount - 370)<=400;assign x[74] = (hcount - 400)*(hcount - 400)+(vcount - 370)*(vcount - 370)<=400;assign x[75] =(hcount - 440)*(hcount - 440)+(vcount - 370)*(vcount - 370)<=400;assign x[76] = (hcount - 480)*(hcount - 480)+(vcount - 370)*(vcount - 370)<=400;assign x[77] =(hcount - 520)*(hcount - 520)+(vcount - 370)*(vcount - 370)<=400;assign x[78] =(hcount - 560)*(hcount -560)+(vcount - 370)*(vcount - 370)<=400;assign x[79] = (hcount - 600)*(hcount - 600)+(vcount - 370)*(vcount - 370)<=400;assign x[80] = (hcount - 240)*(hcount - 240)+(vcount - 410)*(vcount -410)<=400;assign x[81] = (hcount - 280)*(hcount - 280)+(vcount - 410)*(vcount -410)<=400;assign x[82] = (hcount - 320)*(hcount - 320)+(vcount - 410)*(vcount -410)<=400;assign x[83] = (hcount - 360)*(hcount - 360)+(vcount - 410)*(vcount -410)<=400;assign x[84] =(hcount - 400)*(hcount - 400)+(vcount - 410)*(vcount -410)<=400;assign x[85] = (hcount - 440)*(hcount - 440)+(vcount - 410)*(vcount -410)<=400;assign x[86] = (hcount - 480)*(hcount - 480)+(vcount - 410)*(vcount -410)<=400;assign x[87] =(hcount - 520)*(hcount - 520)+(vcount - 410)*(vcount -410)<=400;assign x[88] = (hcount - 560)*(hcount - 560)+(vcount - 410)*(vcount -410)<=400;assign x[89] = (hcount - 600)*(hcount - 600)+(vcount - 410)*(vcount -410)<=400;assign x[90] = (hcount - 240)*(hcount - 240)+(vcount - 450)*(vcount - 450)<=400;assign x[91] = (hcount - 280)*(hcount - 280)+(vcount - 450)*(vcount -450)<=400;assign x[92] = (hcount - 320)*(hcount -320)+(vcount -450)*(vcount - 450)<=400;assign x[93] = (hcount - 360)*(hcount - 360)+(vcount - 450)*(vcount - 450)<=400;assign x[94] = (hcount - 400)*(hcount - 400)+(vcount - 450)*(vcount - 450)<=400;assign x[95] = (hcount - 440)*(hcount - 440)+(vcount -450)*(vcount - 450)<=400;assign x[96] = (hcount - 480)*(hcount - 480)+(vcount - 450)*(vcount - 450)<=400;assign x[97] = (hcount - 520)*(hcount - 520)+(vcount -450)*(vcount - 450)<=400;assign x[98] = (hcount - 560)*(hcount - 560)+(vcount -450)*(vcount -450)<=400;assign x[99] = (hcount - 600)*(hcount - 600)+(vcount - 450)*(vcount - 450)<=400;//VGA行，场扫描时序参数表parameter hsync_end = 10'd95,hdat_begin = 10'd143,hdat_end = 10'd783,hpixel_end = 10'd799,vsync_end = 10'd1,vdat_begin = 10'd34,vdat_end = 10'd514,vline_end = 10'd524; parameter ball_r=20;always@(posedge clk)beginif(cnt_clk == 1)beginvga_clk <= ~vga_clk;cnt_clk <= 0;endelsecnt_clk <= cnt_clk + 1;end /**********VGA驱动**********///行扫描always@(posedge vga_clk)beginif(hcount_ov)hcount <= 10'd0;elsehcount <= hcount + 10'd1;endassign hcount_ov = (hcount == hpixel_end);//场扫描always@(posedge vga_clk)beginif(hcount_ov)beginif(vcount_ov)vcount <= 10'd0;elsevcount <= vcount + 10'd1;endendassign vcount_ov = (vcount == vline_end);//数据、同步信号输入assign dat_act = ((hcount >= hdat_begin) && (hcount < hdat_end)) && ((vcount > vdat_begin) && (vcount<vdat_end));assign hsync = (hcount > hsync_end);assign vsync = (vcount > vsync_end);assign disp_rgb = (dat_act)?data:3'h000; //显示模块 always@(posedge vga_clk)beginif(over==0)data <=v_dat&h_dat&x_dat&y_dat; //与计算显示色素块elsedata <=z_dat; //游戏结束则显示另外画面endparameter WIDTH = 40, //矩形长HEIGHT = 40, //矩形宽 //显示区域的边界 （显示屏上总的显色区域）DISV_TOP = 10'd470, DISV_DOWN =10'd70, DISH_LEFT = 10'd220, DISH_RIGHT = 10'd620;//变色区域（棋格）_右边界=左边界+格子宽度 reg [9:0] ball_y_pos = 10'd90 ;reg [9:0] ball_x_pos = 10'd240 ;reg [9:0] rightbound = DISH_LEFT + WIDTH ; //对100MHz的系统时钟进行分频always @ (posedge clk)beginif(js==DVSR)beginjs<=0;clk_50ms=~clk_50ms;endelsebeginjs<=js+1;end end//按键控制棋子移动//每次按下改变待选择棋子的边界坐标always@(posedge clk_50ms)begincase(yidong[4:0])5'b00100:begin if (ball_x_pos== 10'd240)ball_x_pos<=10'd600;else ball_x_pos<=ball_x_pos-10'd40;end5'b01000:begin if (ball_x_pos==10'd600)ball_x_pos<=10'd240;else ball_x_pos<= ball_x_pos+10'd40;end 5'b00001: begin if (ball_y_pos== 10'd90)ball_y_pos<=10'd450;else ball_y_pos<=ball_y_pos-10'd40; end5'b00010: beginif(ball_y_pos== 10'd450)ball_y_pos<=10'd90;else ball_y_pos<=ball_y_pos+10'd40; end5'b10000: beginif(R[d][c]==0)beginR[d][c]<=1; U[d*10+c]<=flag[0];endenddefault: rightbound<=10'd220;endcaseend//棋盘区域判断及上色always@(posedge vga_clk)beginif ( (hcount - ball_x_pos)*(hcount - ball_x_pos) + (vcount- ball_y_pos)*(vcount - ball_y_pos) <= (ball_r * ball_r)) x_dat<= 12'h0ff; else if (x[b*10+a]&&R[b][a]&&U[b*10+a])beginx_dat<= 12'hfff;y_dat <= 12'hf0f;endelse if (x[b*10+a]&&R[b][a])beginx_dat<= 12'hfff;y_dat <= 12'hff0;end else beginx_dat<= 12'hfff;y_dat <= 12'hfff; end end//产生竖长条always@(posedge vga_clk)beginif(hcount<=200||hcount>=640)v_dat <= 12'h000;//heielse if(hcount ==240||hcount ==280||hcount ==320||hcount ==360||hcount ==400||hcount ==440||hcount ==480||hcount ==520||hcount==560||hcount==600)v_dat <= 12'h000;//heielse v_dat <= 12'hfff;//baiend//产生横长条always@(posedge vga_clk)beginif(vcount<=50||vcount>=490)h_dat <= 12'h000;//heielse if(vcount ==90||vcount ==130||vcount ==170||vcount==210 ||vcount==250||vcount ==290||vcount ==330||vcount==370 ||vcount==410||vcount==450)h_dat <= 12'h000;elseh_dat <= 12'hfff;end //输赢状态判断always@(posedge vga_clk)beginif(b<=5&&U[b*10+a]==1&&U[b*10+a+1]==1&&U[b*10+a+2]==1&&U[b*10+a+3]==1&&U[b*10+a+4]==1)//hengover=1;else if(a<=5&&U[b*10+a]==1&&U[b*10+a+10]==1&&U[b*10+a+20]==1&&U[b*10+a+30]==1&&U[b*10+a+40]==1)//shuover=1;else if(a<=5&&b<=5&&U[b*10+a]==1&&U[b*10+a+11]==1&&U[b*10+a+22]==1&&U[b*10+a+33]==1&&U[b*10+a+44]==1)//chenggongover=1;else if(b<=5&&a>=4&&U[b*10+a]==1&&U[b*10+a+9]==1&&U[b*10+a+18]==1&&U[b*10+a+27]==1&&U[b*10+a+36]==1)over=1;end \\产生黑线（格子之间的黑线）always@(posedge vga_clk)beginif(((hcount>=240&&hcount<=260)||(hcount>=300&&hcount<=320)||(hcount>=360&&hcount<=380)||(hcount>=420&&hcount<=440)||(hcount>=480&&hcount<=500)||(hcount>=560&&hcount<=580))&&(vcount >=200&&vcount <=360))z_dat <= 12'h0f0;//heielse if(hcount>=260&&hcount<=380&&vcount>=340&&vcount <=360)z_dat <= 12'h0f0;else if(hcount>=500&&hcount<=560&&vcount>=200&&vcount <=220)z_dat <= 12'h0f0;elsez_dat <= 12'hfff;end //阿汪先生的博客.ws endmodule

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