Super Mario Game on FPGA
verilog
posted: Jan, 29th 2012 | jump to bottom
/* Author: Khe Lok Chen, Jian Wei Chuah */ module Project(CLOCK_50, SW, KEY, VGA_R, VGA_G, VGA_B, VGA_HS, VGA_VS, VGA_BLANK, VGA_SYNC, VGA_CLK,LEDR,LEDG, HEX4,HEX5,HEX6,HEX7, PS2_CLK, PS2_DAT); input CLOCK_50; input [17:0] SW; input [3:0] KEY; inout PS2_CLK; inout PS2_DAT; output [17:0] LEDR; output [8:0] LEDG; output [9:0] VGA_R; output [9:0] VGA_G; output [9:0] VGA_B; output VGA_HS; output VGA_VS; output VGA_BLANK; output VGA_SYNC; output VGA_CLK; output [6:0] HEX4,HEX5,HEX6,HEX7; //input to the timer for fsm draw,move. wire enable; //inputs to move mario character wire left = ~KEY[3];//((Q1 == 8'h29)&& (Q1 == 8'h6B) && (Q2 == 8'hE0)); wire right = ~KEY[2];//((Q1 == 8'h74) && (Q2 == 8'hE0)); wire up = ~KEY[0];//((Q1 == 8'h29) && (Q2 != 8'hF0)); wire down = ((Q1 == 8'h72) && (Q2 == 8'hE0)); //end of inputs to move mario character //vars for drawing and moving enemy image wire[2:0] color_enemy; reg [7:0] x_start_enemy_d,x_start_enemy_q; reg [6:0] y_start_enemy_d,y_start_enemy_q; reg [3:0] counter_x_enemy_d,counter_x_enemy_q,counter_y_enemy_d,counter_y_enemy_q; //end of vars for drawing and moving enemy image //vars for drawing and moving mario image wire[2:0] color_mario; reg [7:0] x_start_mario_d,x_start_mario_q; reg [6:0] y_start_mario_d,y_start_mario_q; reg [3:0] counter_x_mario_d,counter_x_mario_q,counter_y_mario_d,counter_y_mario_q; //end of vars for drawing and moving mario image //vars for collison Q_brick reg [7:0] x_start_Qbrick_d,x_start_Qbrick_q; reg [6:0] y_start_Qbrick_d,y_start_Qbrick_q; reg [3:0] counter_x_Qbrick_d,counter_x_Qbrick_q,counter_y_Qbrick_d,counter_y_Qbrick_q; reg erase_brown_twice_d,erase_brown_twice_q,coll_qbrick_d,coll_qbrick_q; //vars for mushroom wire[2:0] color_mush; reg [7:0] x_start_mush_d,x_start_mush_q; reg [6:0] y_start_mush_d,y_start_mush_q; reg [3:0] counter_x_mush_d,counter_x_mush_q,counter_y_mush_d,counter_y_mush_q; reg ani_mush_twice_d,ani_mush_twice_q,mush_go_down_d,mush_go_down_q,mush_go_left_d,mush_go_left_q ,mush_go_right_d,mush_go_right_q; //end of vars for collison Q_brick //outputs sent to vga reg [2:0] color_d,color_q; reg [7:0] x_d,x_q; reg [6:0] y_d,y_q; //end of outputs sent to vga //vars for fsm move,draw reg [5:0] state_draw_d,state_draw_q; parameter [5:0] SETUP_MAINBACKGROUND = 6'd0, SETUP_MAINMARIO = 6'd1, WAIT_MAIN = 6'd2, MOVE_MAINMARIO = 6'd3, DRAW_MAINBACKGROUND = 6'd4, DRAW_MAINMARIO = 6'd5, SETUP_STAGE1_BACKGROUND = 6'd6, SETUP_MARIO = 6'd7, SETUP_ENEMY = 6'd8, WAIT = 6'd9, ERASE_MARIO = 6'd10, ERASE_ENEMY = 6'd11, ERASE_QBRICK = 6'd12, ERASE_FATMARIO = 6'd13, ERASE_MUSH = 6'd14, ERASE_DEAD_MARIO = 6'd15, MOVE_MARIO = 6'd16, MOVE_ENEMY = 6'd17, MOVE_FATMARIO = 6'd18,MOVE_MUSH = 6'd19, MOVE_DEAD_MARIO = 6'd20, DRAW_MARIO = 6'd21, DRAW_ENEMY = 6'd22, DRAW_MUSH = 6'd23, DRAW_FATMARIO = 6'd24, DRAW_DEAD_MARIO = 6'd25, COLLIDE_ENEMY = 6'd26, COLLIDE_MONEY = 6'd27, SETUP_STAGE2_BACKGROUND = 6'd28, SETUP_PRINCESS = 6'd29, SETUP_STAGE2_MARIO = 6'd30, WAIT_STAGE2 = 6'd31, MOVE_STAGE2_MARIO = 6'd32, MOVE_DEAD_STAGE2_MARIO = 6'd33, DRAW_STAGE2_BACKGROUND = 6'd34, DRAW_PRINCESS = 6'd35, DRAW_STAGE2_MARIO = 6'd36, DRAW_TURTLE = 6'd37,DRAW_DEAD_STAGE2_MARIO = 6'd38, GAME_END = 6'd39, GAME_OVER = 6'd40; // end of vars for fsm move,draw //vars for main_background wire[2:0] color_main_background; reg [7:0] x_start_mainbckgnd_d,x_start_mainbckgnd_q; reg [6:0] y_start_mainbckgnd_d,y_start_mainbckgnd_q; reg [7:0] counter_x_mainbckgnd_d,counter_x_mainbckgnd_q; reg [6:0] counter_y_mainbckgnd_d,counter_y_mainbckgnd_q; //end of vars for main background //vars for main mario wire[2:0] color_main_mario; reg [7:0] x_start_mainmario_d,x_start_mainmario_q; reg [6:0] y_start_mainmario_d,y_start_mainmario_q; reg [2:0] counter_x_mainmario_d,counter_x_mainmario_q; reg [3:0] counter_y_mainmario_d,counter_y_mainmario_q; //end of vars for main mario //vars for fsm WAIT reg [26:0] counterClock_d, counterClock_q; //end of vars for fsm WAIT //vars for fsm MOVE_ENEMY reg leftRight_d,leftRight_q; //end of vars from fsm MOVE_ENEMY //vars for keyboard control wire [7:0] keyboard_control; wire data_received; reg [7:0] Q1, Q2; //end of vars for keyboard control //vars for fsm WAIT_MAIN reg [26:0] counterClock_main_d, counterClock_main_q; //end of vars for fsm WAIT_MAIN //vars for stage1 background wire[2:0] color_stage1_background; reg [7:0] x_start_stage1bckgnd_d,x_start_stage1bckgnd_q; reg [6:0] y_start_stage1bckgnd_d,y_start_stage1bckgnd_q; reg [7:0] counter_x_stage1bckgnd_d,counter_x_stage1bckgnd_q; reg [6:0] counter_y_stage1bckgnd_d,counter_y_stage1bckgnd_q; //end of vars for stage1 background //vars for fat mario wire[2:0] color_fat_mario; reg [7:0] x_start_fatmario_d,x_start_fatmario_q; reg [6:0] y_start_fatmario_d,y_start_fatmario_q; reg [3:0] counter_x_fatmario_d,counter_x_fatmario_q; reg [4:0] counter_y_fatmario_d,counter_y_fatmario_q; //end of vars for fat mario //vars for collision mush reg collision_mush_d,collision_mush_q; //end of vars for collision mush //vars for stage2_background wire[2:0] color_stage2_background; reg [7:0] x_start_stage2bckgnd_d,x_start_stage2bckgnd_q; reg [6:0] y_start_stage2bckgnd_d,y_start_stage2bckgnd_q; reg [7:0] counter_x_stage2bckgnd_d,counter_x_stage2bckgnd_q; reg [6:0] counter_y_stage2bckgnd_d,counter_y_stage2bckgnd_q; //end of vars for stage2 background //vars for princess wire[2:0] color_princess; reg [7:0] x_start_princess_d,x_start_princess_q; reg [6:0] y_start_princess_d,y_start_princess_q; reg [3:0] counter_x_princess_d,counter_x_princess_q; reg [4:0] counter_y_princess_d,counter_y_princess_q; //end of vars for princess //vars for stage2 mario wire[2:0] color_stage2_mario; reg [7:0] x_start_stage2mario_d,x_start_stage2mario_q; reg [6:0] y_start_stage2mario_d,y_start_stage2mario_q; reg [3:0] counter_x_stage2mario_d,counter_x_stage2mario_q,counter_y_stage2mario_d,counter_y_stage2mario_q; //end of vars for stage2 mario //vars for fsm WAIT_STAGE2 reg [26:0] counterClock_stage2_d, counterClock_stage2_q; //end of vars for fsm WAIT_STAGE2 //vars for turtle wire[2:0] color_turtle; reg [7:0] x_start_turtle_d,x_start_turtle_q; reg [6:0] y_start_turtle_d,y_start_turtle_q; reg [4:0] counter_x_turtle_d,counter_x_turtle_q,counter_y_turtle_d,counter_y_turtle_q; //end of vars for turtle //vars for collision princess reg collision_princess_d,collision_princess_q; //end of vars for collision princess //vars for mario projectile reg [6:0] v_y_d,v_y_q; reg [6:0] d_y_d,d_y_q; reg setTwice_d,setTwice_q; //end of vars for mario projectile //enemy collision reg collision_enemy_d,collision_enemy_q; //coin collision reg collision_coin_d,collision_coin_q; //vars for dead stage2 mario wire[2:0] color_dead_stage2_mario; reg [7:0] x_start_dead_stage2mario_d,x_start_dead_stage2mario_q; reg [6:0] y_start_dead_stage2mario_d,y_start_dead_stage2mario_q; reg [3:0] counter_x_dead_stage2mario_d,counter_x_dead_stage2mario_q,counter_y_dead_stage2mario_d,counter_y_dead_stage2mario_q; //end of vars for dead stage2 mario //vars for ending_background wire[2:0] color_ending_background; reg [7:0] x_start_endingbckgnd_d,x_start_endingbckgnd_q; reg [6:0] y_start_endingbckgnd_d,y_start_endingbckgnd_q; reg [7:0] counter_x_endingbckgnd_d,counter_x_endingbckgnd_q; reg [6:0] counter_y_endingbckgnd_d,counter_y_endingbckgnd_q; //end of vars for ending background //vars for dead stage1 mario wire[2:0] color_dead_stage1_mario; reg [7:0] x_start_dead_stage1mario_d,x_start_dead_stage1mario_q; reg [6:0] y_start_dead_stage1mario_d,y_start_dead_stage1mario_q; reg [3:0] counter_x_dead_stage1mario_d,counter_x_dead_stage1mario_q,counter_y_dead_stage1mario_d,counter_y_dead_stage1mario_q; //end of vars for dead stage1 mario //vars for game over reg [3:0] gameover_d, gameover_q; //vars for ending_background wire[2:0] color_gameover; reg [7:0] x_start_gameover_d,x_start_gameover_q; reg [6:0] y_start_gameover_d,y_start_gameover_q; reg [7:0] counter_x_gameover_d,counter_x_gameover_q; reg [6:0] counter_y_gameover_d,counter_y_gameover_q; //end of vars for ending background //vars for erase coins reg [7:0] x_start_coin_d,x_start_coin_q; reg [6:0] y_start_coin_d,y_start_coin_q; reg [3:0] counter_x_coin_d,counter_x_coin_q,counter_y_coin_d,counter_y_coin_q; //end of vars for erase coins //vars for levels reg [3:0] level_d, level_q; //vars for the game feature in which the jump will not be stopped even after the player releases the jump button. reg condition_up_d,condition_up_q,condition_up_y63_d,condition_up_y63_q,condition_up_y71_d,condition_up_y71_q; reg condition_leftup_d,condition_leftup_q,condition_rightup_d,condition_rightup_q; reg condition_leftup_y63_d,condition_leftup_y63_q,condition_rightup_y63_d,condition_rightup_y63_q; reg condition_leftup_y71_d,condition_leftup_y71_q,condition_rightup_y71_d,condition_rightup_y71_q; reg cond2_up_q, cond2_up_d,cond2_rightup_q, cond2_rightup_d,cond2_leftup_q, cond2_leftup_d; //end of vars for the game feature in which the jump will not be stopped even after the player releases the jump button. ////////////fsm for draw,move////////////// //Register for keyboard control always@ (posedge CLOCK_50) begin if(~KEY[0]) begin Q1 <= 0; Q2 <= 0; end else if(data_received == 1) begin Q1 <= keyboard_control; Q2 <= Q1; end end //timer for controlling the speed when the player moves the mario halfSecTimer T0(CLOCK_50, enable); always@ (*) begin //retain the previous state when it is not going into any state //state that controls this fsm, and outputs to vga state_draw_d = state_draw_q; color_d = color_q; x_d = x_q; y_d = y_q; //enemy image x_start_enemy_d = x_start_enemy_q; y_start_enemy_d = y_start_enemy_q; counter_x_enemy_d = counter_x_enemy_q; counter_y_enemy_d = counter_y_enemy_q; //mario image x_start_mario_d = x_start_mario_q; y_start_mario_d = y_start_mario_q; counter_x_mario_d = counter_x_mario_q; counter_y_mario_d = counter_y_mario_q; //Counter for WAIT counterClock_d = counterClock_q; leftRight_d = leftRight_q; //collision Q_brick //Q_brick x_start_Qbrick_d = x_start_Qbrick_q; y_start_Qbrick_d = y_start_Qbrick_q; counter_x_Qbrick_d = counter_x_Qbrick_q; counter_y_Qbrick_d = counter_y_Qbrick_q; //boolean wire for Q brick and mushroom erase_brown_twice_d = erase_brown_twice_q; coll_qbrick_d = coll_qbrick_q; ani_mush_twice_d = ani_mush_twice_q; mush_go_down_d = mush_go_down_q; mush_go_left_d = mush_go_left_q; mush_go_right_d = mush_go_right_q; //mushroom image x_start_mush_d = x_start_mush_q; y_start_mush_d = y_start_mush_q; counter_x_mush_d = counter_x_mush_q; counter_y_mush_d = counter_y_mush_q; //main_background x_start_mainbckgnd_d = x_start_mainbckgnd_q; y_start_mainbckgnd_d = y_start_mainbckgnd_q; counter_x_mainbckgnd_d = counter_x_mainbckgnd_q; counter_y_mainbckgnd_d = counter_y_mainbckgnd_q; //main_mario x_start_mainmario_d = x_start_mainmario_q; y_start_mainmario_d = y_start_mainmario_q; counter_x_mainmario_d = counter_x_mainmario_q; counter_y_mainmario_d = counter_y_mainmario_q; //fsm WAIT_MAIN counterClock_main_d = counterClock_main_q; //stage1_background x_start_stage1bckgnd_d = x_start_stage1bckgnd_q; y_start_stage1bckgnd_d = y_start_stage1bckgnd_q; counter_x_stage1bckgnd_d = counter_x_stage1bckgnd_q; counter_y_stage1bckgnd_d = counter_y_stage1bckgnd_q; //fat_mario x_start_fatmario_d = x_start_fatmario_q; y_start_fatmario_d = y_start_fatmario_q; counter_x_fatmario_d = counter_x_fatmario_q; counter_y_fatmario_d = counter_y_fatmario_q; //Collision mush collision_mush_d = collision_mush_q; //stage2_background x_start_stage2bckgnd_d = x_start_stage2bckgnd_q; y_start_stage2bckgnd_d = y_start_stage2bckgnd_q; counter_x_stage2bckgnd_d = counter_x_stage2bckgnd_q; counter_y_stage2bckgnd_d = counter_y_stage2bckgnd_q; //princess x_start_princess_d = x_start_princess_q; y_start_princess_d = y_start_princess_q; counter_x_princess_d = counter_x_princess_q; counter_y_princess_d = counter_y_princess_q; //stage2 mario image x_start_stage2mario_d = x_start_stage2mario_q; y_start_stage2mario_d = y_start_stage2mario_q; counter_x_stage2mario_d = counter_x_stage2mario_q; counter_y_stage2mario_d = counter_y_stage2mario_q; //fsm WAIT_STAGE2 counterClock_stage2_d = counterClock_stage2_q; //turtle x_start_turtle_d = x_start_turtle_q; y_start_turtle_d = y_start_turtle_q; counter_x_turtle_d = counter_x_turtle_q; counter_y_turtle_d = counter_y_turtle_q; //Collision princess collision_princess_d = collision_princess_q; //Mario projectile v_y_d = v_y_q; d_y_d = d_y_q; setTwice_d = setTwice_q; //enemy collision collision_enemy_d = collision_enemy_q; //coin collision collision_coin_d = collision_coin_q; //dead stage2 mario image x_start_dead_stage2mario_d = x_start_dead_stage2mario_q; y_start_dead_stage2mario_d = y_start_dead_stage2mario_q; counter_x_dead_stage2mario_d = counter_x_dead_stage2mario_q; counter_y_dead_stage2mario_d = counter_y_dead_stage2mario_q; //Ending Background x_start_endingbckgnd_d = x_start_endingbckgnd_q; y_start_endingbckgnd_d = y_start_endingbckgnd_q; counter_x_endingbckgnd_d = counter_x_endingbckgnd_q; counter_y_endingbckgnd_d = counter_y_endingbckgnd_q; //dead stage1 mario image x_start_dead_stage1mario_d = x_start_dead_stage1mario_q; y_start_dead_stage1mario_d = y_start_dead_stage1mario_q; counter_x_dead_stage1mario_d = counter_x_dead_stage1mario_q; counter_y_dead_stage1mario_d = counter_y_dead_stage1mario_q; //game over gameover_d = gameover_q; //GameOver Background x_start_gameover_d = x_start_gameover_q; y_start_gameover_d = y_start_gameover_q; counter_x_gameover_d = counter_x_gameover_q; counter_y_gameover_d = counter_y_gameover_q; //Erase coins x_start_coin_d = x_start_coin_q; y_start_coin_d = y_start_coin_q; counter_x_coin_d = counter_x_coin_q; counter_y_coin_d = counter_y_coin_q; //vars for levels level_d = level_q; //jump feature where the jump is not stopped even after the button is released condition_up_d = condition_up_q; condition_leftup_d = condition_leftup_q; condition_rightup_d = condition_rightup_q; condition_up_y63_d = condition_up_y63_q; condition_leftup_y63_d = condition_leftup_y63_q; condition_rightup_y63_d = condition_rightup_y63_q; condition_up_y71_d = condition_up_y71_q; condition_leftup_y71_d = condition_leftup_y71_q; condition_rightup_y71_d = condition_rightup_y71_q; cond2_up_d = cond2_up_q; cond2_leftup_d = cond2_leftup_q; cond2_rightup_d = cond2_rightup_q; //end of retaining the previous state when it is not going into any state case (state_draw_q) //draws main page background on the screen SETUP_MAINBACKGROUND: begin counter_x_coin_d = 4'd0; counter_y_coin_d = 4'd0; counter_x_gameover_d = 8'd0; counter_y_gameover_d = 7'd0; counter_x_endingbckgnd_d = 8'd0; counter_y_endingbckgnd_d = 7'd0; gameover_d = 4'd0; level_d = 4'd0; //draw image if (counter_y_mainbckgnd_q <= 7'd119) begin color_d = color_main_background; x_start_mainbckgnd_d = 8'd0; y_start_mainbckgnd_d = 7'd0; x_d = x_start_mainbckgnd_d + counter_x_mainbckgnd_q; y_d = y_start_mainbckgnd_d + counter_y_mainbckgnd_q; counter_x_mainbckgnd_d = counter_x_mainbckgnd_q + 8'd01; if (counter_x_mainbckgnd_q == 8'd159) begin counter_y_mainbckgnd_d = counter_y_mainbckgnd_q + 7'd01; counter_x_mainbckgnd_d = 8'd00; end end //condition for choosing next state if ((counter_x_mainbckgnd_q == 8'd159) && (counter_y_mainbckgnd_q == 7'd119)) begin counter_x_mainbckgnd_d = 8'd00; counter_y_mainbckgnd_d = 7'd00; state_draw_d = SETUP_MAINMARIO; end else state_draw_d = SETUP_MAINBACKGROUND; end //Draws the mario on the main page on the screen SETUP_MAINMARIO: begin //draw image if (counter_y_mainmario_q <= 4'd11) begin color_d = color_main_mario; x_start_mainmario_d = 8'd79; y_start_mainmario_d = 7'd108; x_d = x_start_mainmario_d + counter_x_mainmario_q; y_d = y_start_mainmario_d + counter_y_mainmario_q; counter_x_mainmario_d = counter_x_mainmario_q + 3'd01; if (counter_x_mainmario_q == 3'd5) begin counter_y_mainmario_d = counter_y_mainmario_q + 4'd01; counter_x_mainmario_d = 3'd00; end end //condition for choosing next state if ((counter_x_mainmario_q == 3'd5) && (counter_y_mainmario_q == 4'd11)) begin counter_x_mainmario_d = 3'd00; counter_y_mainmario_d = 4'd00; state_draw_d = WAIT_MAIN; end else state_draw_d = SETUP_MAINMARIO; end //Wait state for main page WAIT_MAIN: begin counterClock_main_d = counterClock_main_q + 27'd01; if (counterClock_main_q == 26'd5000000) begin if(y_start_mainmario_q == 7'd94)//Transition from main page to stage 1 state_draw_d = SETUP_STAGE1_BACKGROUND; else begin counterClock_main_d = 26'd0; state_draw_d = MOVE_MAINMARIO; end end else state_draw_d = WAIT_MAIN; end //Moves main mario MOVE_MAINMARIO: begin if (Q1 == 8'h75 && Q2 == 8'hE0) begin y_start_mainmario_d = y_start_mainmario_q-7'd01;state_draw_d = DRAW_MAINBACKGROUND; end else state_draw_d = DRAW_MAINBACKGROUND; end //Draws main page background DRAW_MAINBACKGROUND: begin //draw image if (counter_y_mainbckgnd_q <= 7'd119) begin color_d = color_main_background; x_start_mainbckgnd_d = 8'd0; y_start_mainbckgnd_d = 7'd0; x_d = x_start_mainbckgnd_d + counter_x_mainbckgnd_q; y_d = y_start_mainbckgnd_d + counter_y_mainbckgnd_q; counter_x_mainbckgnd_d = counter_x_mainbckgnd_q + 8'd01; if (counter_x_mainbckgnd_q == 8'd159) begin counter_y_mainbckgnd_d = counter_y_mainbckgnd_q + 7'd01; counter_x_mainbckgnd_d = 8'd00; end end //condition for choosing next state if ((counter_x_mainbckgnd_q == 8'd159) && (counter_y_mainbckgnd_q == 7'd119)) begin counter_x_mainbckgnd_d = 8'd00; counter_y_mainbckgnd_d = 7'd00; state_draw_d = DRAW_MAINMARIO; end else state_draw_d = DRAW_MAINBACKGROUND; end //Draws main mario DRAW_MAINMARIO: begin //draw image if (counter_y_mainmario_q <= 4'd11) begin color_d = color_main_mario; x_d = x_start_mainmario_d + counter_x_mainmario_q; y_d = y_start_mainmario_d + counter_y_mainmario_q; counter_x_mainmario_d = counter_x_mainmario_q + 3'd01; if (counter_x_mainmario_q == 3'd5) begin counter_y_mainmario_d = counter_y_mainmario_q + 4'd01; counter_x_mainmario_d = 3'd00; end end //condition for choosing next state if ((counter_x_mainmario_q == 3'd5) && (counter_y_mainmario_q == 4'd11)) begin counter_x_mainmario_d = 3'd00; counter_y_mainmario_d = 4'd00; state_draw_d = WAIT_MAIN; end else state_draw_d = DRAW_MAINMARIO; end //Draws stage 1 background SETUP_STAGE1_BACKGROUND: begin level_d = 4'd1; //draw image if (gameover_q == 4'd3) begin state_draw_d = GAME_OVER; end else begin if (counter_y_stage1bckgnd_q <= 7'd119) begin color_d = color_stage1_background; x_start_stage1bckgnd_d = 8'd0; y_start_stage1bckgnd_d = 7'd0; x_d = x_start_stage1bckgnd_d + counter_x_stage1bckgnd_q; y_d = y_start_stage1bckgnd_d + counter_y_stage1bckgnd_q; counter_x_stage1bckgnd_d = counter_x_stage1bckgnd_q + 8'd01; if (counter_x_stage1bckgnd_q == 8'd159) begin counter_y_stage1bckgnd_d = counter_y_stage1bckgnd_q + 7'd01; counter_x_stage1bckgnd_d = 8'd00; end end //condition for choosing next state if ((counter_x_stage1bckgnd_q == 8'd159) && (counter_y_stage1bckgnd_q == 7'd119)) begin counter_x_stage1bckgnd_d = 8'd0; counter_y_stage1bckgnd_d = 7'd0; state_draw_d = SETUP_MARIO; end else state_draw_d = SETUP_STAGE1_BACKGROUND; end end //This draws mario on the screen and is called only at the beginning of the game. SETUP_MARIO: begin //besides, also set all s that are used in subsequent states to 1'b0; erase_brown_twice_d = 1'b0; coll_qbrick_d = 1'b0; counter_x_mush_d = 4'd0; counter_y_mush_d = 4'd0; ani_mush_twice_d = 1'b0; mush_go_down_d = 1'b0; mush_go_left_d = 1'b0; mush_go_right_d = 1'b0; x_start_mush_d = 8'd74; y_start_mush_d = 7'd63; collision_mush_d = 1'b0; x_start_dead_stage1mario_d = 4'd0; y_start_dead_stage1mario_d = 4'd0; v_y_d = 7'd0; d_y_d = 7'd0; setTwice_d = 1'b0; collision_enemy_d = 1'b0; collision_coin_d = 1'b0; x_start_fatmario_d = 8'd0; y_start_fatmario_d = 7'd0; condition_up_d = 1'b0; condition_up_y63_d = 1'b0; condition_leftup_d = 1'b0; condition_leftup_y63_d = 1'b0; condition_rightup_d = 1'b0; condition_rightup_y63_d = 1'b0; condition_leftup_y71_d = 1'b0; condition_rightup_y71_d = 1'b0; condition_up_y71_d = 1'b0; cond2_up_d = 1'b0; cond2_leftup_d = 1'b0; cond2_rightup_d = 1'b0; //draw mario if (counter_y_mario_q <= 4'd09) begin color_d = color_mario; x_start_mario_d = 8'd23; y_start_mario_d = 7'd97; x_d = x_start_mario_d + counter_x_mario_q; y_d = y_start_mario_d + counter_y_mario_q; counter_x_mario_d = counter_x_mario_q + 4'd01; if (counter_x_mario_q == 4'd04) begin counter_y_mario_d = counter_y_mario_q+4'd01; counter_x_mario_d = 0; end end //condition for choosing next state if ((counter_x_mario_q == 4'd04) && (counter_y_mario_q == 4'd09)) state_draw_d = SETUP_ENEMY; else state_draw_d = SETUP_MARIO; end //draw SETUP_ENEMY: begin //draw image if (counter_y_enemy_q <= 4'd09) begin color_d = color_enemy; x_start_enemy_d = 8'd149; y_start_enemy_d = 7'd97; x_d = x_start_enemy_d + counter_x_enemy_q; y_d = y_start_enemy_d + counter_y_enemy_q; counter_x_enemy_d = counter_x_enemy_q + 4'd01; if (counter_x_enemy_q == 4'd09) begin counter_y_enemy_d = counter_y_enemy_q + 4'd01; counter_x_enemy_d = 4'd00; end end //condition for choosing next state if ((counter_x_enemy_q == 4'd09) && (counter_y_enemy_q == 4'd09)) state_draw_d = WAIT; else state_draw_d = SETUP_ENEMY; end //stay at the wait state for 0.1s, then go to next state. WAIT: begin counterClock_d = counterClock_q + 27'd01; if(collision_coin_q == 1'b1 && y_start_dead_stage1mario_q == 7'd30) begin if(counterClock_q == 26'd50000000) begin gameover_d = gameover_q + 4'd01; counterClock_d = 26'd0; state_draw_d = SETUP_STAGE1_BACKGROUND; end else state_draw_d = WAIT; end else if(collision_enemy_q == 1'b1 && y_start_dead_stage1mario_q == 7'd82) begin if(counterClock_q == 26'd50000000) begin gameover_d = gameover_q + 4'd01; counterClock_d = 26'd0; state_draw_d = SETUP_STAGE1_BACKGROUND; end else state_draw_d = WAIT; end else if(collision_mush_q == 1'b1 && y_start_fatmario_q == 7'd101) begin if(counterClock_q == 26'd50000000) begin gameover_d = gameover_q + 4'd01; counterClock_d = 26'd0; state_draw_d = SETUP_STAGE1_BACKGROUND; end else state_draw_d = WAIT; end else if (coll_qbrick_q && x_start_mario_q >= 8'd19 && x_start_mario_q <= 8'd100 && y_start_mush_q >= 7'd77 && y_start_mush_q <= 7'd97 && y_start_mario_q >= 7'd87 && y_start_mario_q <= 7'd97) begin if (((x_start_mario_q < x_start_mush_q) &&(x_start_mario_q + 8'd05 >= x_start_mush_q)) || ((x_start_mush_q + 8'd10 >= x_start_mario_q) && (x_start_mario_q >= x_start_mush_q))) begin collision_mush_d = 1'b1; //erase the mushroom if (counter_y_mush_q <= 4'd09) begin color_d = 3'b011; x_d = x_start_mush_d + counter_x_mush_q; y_d = y_start_mush_d + counter_y_mush_q; counter_x_mush_d = counter_x_mush_q + 4'd01; if (counter_x_mush_q == 4'd09) begin counter_y_mush_d = counter_y_mush_q + 4'd01; counter_x_mush_d = 4'd00; end end else if (counterClock_q == 26'd5000000) begin counterClock_d = 26'd0; counter_x_mario_d = 4'd00; counter_y_mario_d = 4'd00; counter_x_enemy_d = 4'd00; counter_y_enemy_d = 4'd00; state_draw_d = ERASE_MARIO; end else state_draw_d = WAIT; end else if (counterClock_q == 26'd5000000) begin counterClock_d = 26'd0; counter_x_mario_d = 4'd00; counter_y_mario_d = 4'd00; counter_x_enemy_d = 4'd00; counter_y_enemy_d = 4'd00; state_draw_d = ERASE_MARIO; end else state_draw_d = WAIT; end else if (counterClock_q == 26'd5000000) begin if (x_start_mario_q == 8'd155) state_draw_d = SETUP_STAGE2_BACKGROUND; else begin counterClock_d = 26'd0; counter_x_mario_d = 4'd00; counter_y_mario_d = 4'd00; counter_x_enemy_d = 4'd00; counter_y_enemy_d = 4'd00; state_draw_d = ERASE_MARIO; end end else state_draw_d = WAIT; end //erase mario,once finished, go to next state ERASE_MARIO: begin if(collision_mush_q == 1'b0) begin if (counter_y_mario_q <= 4'd09) begin color_d = 3'b011; x_d = x_start_mario_d + counter_x_mario_q; y_d = y_start_mario_d + counter_y_mario_q; counter_x_mario_d = counter_x_mario_q + 4'd01; if (counter_x_mario_q == 4'd04) begin counter_y_mario_d = counter_y_mario_q + 4'd01; counter_x_mario_d = 4'd00; end end //condition for choosing next state if ((counter_x_mario_q == 4'd04) && (counter_y_mario_q == 4'd09)) begin counter_x_mario_d = 4'd0; counter_y_mario_d = 4'd0; state_draw_d = ERASE_ENEMY; end else state_draw_d = ERASE_MARIO; end else state_draw_d = ERASE_ENEMY; end //erase enemy,once finished, go to next state ERASE_ENEMY: begin if (counter_y_enemy_q <= 4'd09) begin color_d = 3'b011; x_d = x_start_enemy_d + counter_x_enemy_q; y_d = y_start_enemy_d + counter_y_enemy_q; counter_x_enemy_d = counter_x_enemy_q + 4'd01; if (counter_x_enemy_q == 4'd09) begin counter_y_enemy_d = counter_y_enemy_q + 4'd01; counter_x_enemy_d = 4'd00; end end //condition for choosing next state if ((counter_x_enemy_q == 4'd09) && (counter_y_enemy_q == 4'd09)) begin counter_x_enemy_d = 4'd0; counter_y_enemy_d = 4'd0; state_draw_d = ERASE_QBRICK; end else state_draw_d = ERASE_ENEMY; end ///////////new event: with "question_mark" brick///////////// ERASE_QBRICK: begin if ((x_start_mario_q >= 8'd71) && (x_start_mario_q <= 8'd80) && (y_start_mario_q == 7'd82) && (erase_brown_twice_q == 1'b0)) begin //erase Qbrick: dimension = 8x9 excluding boundaries if (counter_y_Qbrick_q <= 4'd06) begin color_d = 3'b110; x_start_Qbrick_d = 8'd74; y_start_Qbrick_d = 7'd74; x_d = x_start_Qbrick_d + counter_x_Qbrick_q; y_d = y_start_Qbrick_d + counter_y_Qbrick_q; coll_qbrick_d = 1'b1; counter_x_Qbrick_d = counter_x_Qbrick_q + 4'd01; if (counter_x_Qbrick_q == 4'd07) begin counter_y_Qbrick_d = counter_y_Qbrick_q + 4'd01; counter_x_Qbrick_d = 4'd00; end end //condition for choosing next state if ((counter_x_Qbrick_q == 4'd07) && (counter_y_Qbrick_q == 4'd06)) begin counter_x_Qbrick_d = 4'd00; counter_y_Qbrick_d = 4'd00; erase_brown_twice_d = 1'b1; state_draw_d = ERASE_FATMARIO; end else state_draw_d = ERASE_QBRICK; end else state_draw_d = ERASE_FATMARIO; end //erase fat mario ERASE_FATMARIO: begin if(collision_mush_q == 1'b1 && y_start_fatmario_q != 7'd101) begin //draw image if (counter_y_fatmario_q <= 5'd19) begin color_d = 3'b011; x_d = x_start_fatmario_d + counter_x_fatmario_q; y_d = y_start_fatmario_d + counter_y_fatmario_q; counter_x_fatmario_d = counter_x_fatmario_q + 4'd01; if (counter_x_fatmario_q == 4'd09) begin counter_y_fatmario_d = counter_y_fatmario_q + 5'd01; counter_x_fatmario_d = 4'd00; end end //condition for choosing next state if ((counter_x_fatmario_q == 4'd09) && (counter_y_fatmario_q == 5'd19)) begin counter_x_fatmario_d = 4'd00; counter_y_fatmario_d = 5'd00; state_draw_d = ERASE_MUSH; end else state_draw_d = ERASE_FATMARIO; end else state_draw_d = ERASE_MUSH; end //erase the mushroom ERASE_MUSH: begin if (coll_qbrick_q && collision_mush_q == 1'b0) begin //1st time it erases nothing, since mushroom is not drawn yet. //erase mush: dimension = 8x9 excluding boundaries if (counter_y_mush_q <= 4'd09) begin color_d = 3'b011; x_d = x_start_mush_d + counter_x_mush_q; y_d = y_start_mush_d + counter_y_mush_q; counter_x_mush_d = counter_x_mush_q + 4'd01; if (counter_x_mush_q == 4'd09) begin counter_y_mush_d = counter_y_mush_q + 4'd01; counter_x_mush_d = 4'd00; end end //condition for choosing next state if ((counter_x_mush_q == 4'd09) && (counter_y_mush_q == 4'd09)) begin counter_x_mush_d = 4'd00; counter_y_mush_d = 4'd00; mush_go_left_d = 1'b1; state_draw_d = ERASE_DEAD_MARIO; end else begin state_draw_d = ERASE_MUSH; end end else state_draw_d = ERASE_DEAD_MARIO; end //Erases dead mario after mario is dead ERASE_DEAD_MARIO: begin //a game feature in which the animation of jump is not stopped even when the player releases the jump button after being pressed once. //for all boundaries except boundary 1 if ((!condition_leftup_q) && !(y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin if (left &&up) begin condition_leftup_d = 1'b1; condition_up_d = 1'b0; end else condition_leftup_d = 1'b0; end if ((!condition_rightup_q) && !(y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin if (((right) &&(up)) || ((condition_up_q) && (right))) begin condition_rightup_d = 1'b1; condition_up_d = 1'b0; end else condition_rightup_d = 1'b0; end if ((!condition_up_q) && !(y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin if (up) condition_up_d = 1'b1; else condition_up_d = 1'b0; end //for boundary 1: sky above bricks if ((!condition_leftup_y63_q) && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin if ((left) &&(up) || ((condition_up_y63_q) && (left)) || (condition_up_q)/* || (condition_rightup_y71_q)*/) begin condition_leftup_y63_d = 1'b1; condition_up_y63_d = 1'b0; condition_up_d = 1'b0; //condition_rightup_y71_d = 1'b0; end else condition_leftup_y63_d = 1'b0; end if ((!condition_rightup_y63_q) && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin if (((right) &&(up)) || ((condition_up_y63_q) && (right)) || (condition_up_q) || (condition_rightup_y71_q)) begin condition_up_d = 1'b0; condition_rightup_y63_d = 1'b1; condition_up_y63_d = 1'b0; condition_rightup_y71_d = 1'b0; end else condition_rightup_y63_d = 1'b0; end if ((!condition_up_y63_q) && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin if(up) condition_up_y63_d = 1'b1; else condition_up_y63_d = 1'b0; end if(collision_coin_q == 1'b1 && y_start_dead_stage1mario_q != 7'd30) begin //draw dead stage 2 mario if (counter_y_dead_stage1mario_q <= 4'd13) begin color_d = 3'b011; x_d = x_start_dead_stage1mario_d + counter_x_dead_stage1mario_q; y_d = y_start_dead_stage1mario_d + counter_y_dead_stage1mario_q; counter_x_dead_stage1mario_d = counter_x_dead_stage1mario_q + 4'd01; if (counter_x_dead_stage1mario_q == 4'd04) begin counter_y_dead_stage1mario_d = counter_y_dead_stage1mario_q+4'd01; counter_x_dead_stage1mario_d = 4'd00; end end //condition for choosing next state if ((counter_x_dead_stage1mario_q == 4'd04) && (counter_y_dead_stage1mario_q == 4'd13)) begin counter_x_dead_stage1mario_d = 4'd00; counter_y_dead_stage1mario_d = 4'd00; state_draw_d = MOVE_MARIO; end else state_draw_d = ERASE_DEAD_MARIO; end else if(collision_enemy_q == 1'b1 && y_start_dead_stage1mario_q != 7'd82) begin //draw dead stage 2 mario if (counter_y_dead_stage1mario_q <= 4'd13) begin color_d = 3'b011; x_d = x_start_dead_stage1mario_d + counter_x_dead_stage1mario_q; y_d = y_start_dead_stage1mario_d + counter_y_dead_stage1mario_q; counter_x_dead_stage1mario_d = counter_x_dead_stage1mario_q + 4'd01; if (counter_x_dead_stage1mario_q == 4'd04) begin counter_y_dead_stage1mario_d = counter_y_dead_stage1mario_q+4'd01; counter_x_dead_stage1mario_d = 4'd00; end end //condition for choosing next state if ((counter_x_dead_stage1mario_q == 4'd04) && (counter_y_dead_stage1mario_q == 4'd13)) begin counter_x_dead_stage1mario_d = 4'd00; counter_y_dead_stage1mario_d = 4'd00; state_draw_d = MOVE_MARIO; end else state_draw_d = ERASE_DEAD_MARIO; end else state_draw_d = MOVE_MARIO; end //move the mario MOVE_MARIO: begin //condition for jumping motion, determined by the keys. //all boundaries except boundary 1 if ((condition_leftup_q) && (y_start_mario_q == 7'd97)) condition_leftup_d = 1'b0; if ((condition_rightup_q) && (y_start_mario_q == 7'd97)) condition_rightup_d = 1'b0; if ((condition_up_q) && (y_start_mario_q == 7'd97)) condition_up_d = 1'b0; //for boundary 1 if ((condition_leftup_y63_q) && (y_start_mario_q == 7'd63)) condition_leftup_y63_d = 1'b0; if ((condition_rightup_y63_q) && (y_start_mario_q == 7'd63)) condition_rightup_y63_d = 1'b0; if ((condition_up_y63_q) && (y_start_mario_q == 7'd63)) condition_up_y63_d = 1'b0; /* Note: Boundary Table Boundary 1: 48 <= x <= 111, 0 <= y <= 63; (sky above the bricks) Boundary 2: 0 <= x < 48 , 0 <= y <= 63; (region before the bricks) Boundary 6: 111 < x <= 155, 0 <= y <= 97; (region after the bricks) const coordinate: 1.ground : y = 97; */ if(collision_mush_q == 1'b0 && collision_enemy_q == 1'b0 && collision_coin_q == 1'b0) begin /******************************************Boundary 1********************************************************/ //sky above the bricks if (y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin if (condition_rightup_y63_q && (y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin //do not fall into the brick if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd56 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin y_start_mario_d = 7'd63; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q+8'd2; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (condition_leftup_y63_q && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin //do not fall into the brick if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd56 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin y_start_mario_d = 7'd63; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q-8'd2; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (left && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; x_start_mario_d = x_start_mario_q-8'd1; state_draw_d = MOVE_ENEMY; end else if (right && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; x_start_mario_d = x_start_mario_q+8'd1; state_draw_d = MOVE_ENEMY; end else if (condition_up_y63_q && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111) begin //do not fall into the brick if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd52 && y_start_mario_q <= 7'd63 && x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111)) begin y_start_mario_d = 7'd63; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end end /******************************************End of Boundary 1********************************************************/ /******************************************Boundary 2********************************************************/ else if(x_start_mario_q >= 8'd0 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97) begin //mario is on the pipe in this range. if (right && up && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd97) begin //do not fall into the pipe if ((v_y_q >= 7'd9) && (d_y_q >= 7'd0) && (y_start_mario_q >= 7'd65 && y_start_mario_q <= 7'd71 && x_start_mario_q >= 8'd0 && x_start_mario_q <= 8'd20)) begin x_start_mario_d = 7'd1; y_start_mario_d = 7'd71; state_draw_d = MOVE_ENEMY; end //do not fall into the ground else if ((v_y_q >= 7'd9) && (d_y_q >= 7'd0) && (y_start_mario_q >= 7'd91 && y_start_mario_q <= 7'd97 && x_start_mario_q >= 8'd21 && x_start_mario_q < 8'd48)) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end //do not touch the bricks else if ((x_start_mario_q >= 8'd44 && x_start_mario_q <= 8'd47) && (y_start_mario_q >= 7'd60 && y_start_mario_q <= 7'd90)) begin if ((!setTwice_q) && (y_start_mario_q >= 7'd71)) begin x_start_mario_d = 8'd47; y_start_mario_d = 7'd71; setTwice_d = 1'b1; state_draw_d = MOVE_ENEMY; end else begin d_y_d = d_y_q+7'd1; x_start_mario_d = 8'd47; y_start_mario_d = y_start_mario_q + d_y_q; state_draw_d = MOVE_ENEMY; end end //safe to fall down else begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q+8'd2; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (left && up && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd97) begin //do not fall into the pipe while the mario is falling down onto the pipe. if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd61 && y_start_mario_q <= 7'd71 && x_start_mario_q > 8'd6 && x_start_mario_q <= 8'd22)) begin y_start_mario_d = 7'd71; state_draw_d = MOVE_ENEMY; end //while jumping to the left corner, restrict the mario to stay at x = 1, y = 71 to prevent it jumps off the boundary. else if ((y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd71 && x_start_mario_q >= 8'd0 && x_start_mario_q <= 8'd6)) begin x_start_mario_d = 7'd2; y_start_mario_d = 7'd71; state_draw_d = MOVE_ENEMY; end //do not fall into the ground else if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd87 && y_start_mario_q <= 7'd97 && x_start_mario_q > 8'd22 && x_start_mario_q < 8'd48)) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end //while jumping, do not touch the body of the pipe. else if ((y_start_mario_q >= 7'd71 && y_start_mario_q <= 7'd97 && x_start_mario_q >= 8'd15 && x_start_mario_q <= 8'd22)) begin v_y_d = v_y_q+7'd1; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end //safe to jump and fall down else begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q-8'd2; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (left && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd97) begin if (x_start_mario_q > 8'd22 && x_start_mario_q < 8'd48 && y_start_mario_q == 7'd97) begin x_start_mario_d = x_start_mario_q-8'd1; v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end else if (x_start_mario_q > 8'd22 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd90) begin x_start_mario_d = x_start_mario_q-8'd2; v_y_d = v_y_q + 7'd1; setTwice_d = 1'b0; d_y_d = 7'd0; y_start_mario_d = y_start_mario_q + v_y_q; state_draw_d = MOVE_ENEMY; end //Note: x > 1 instead of x >= 1, to prevent mario go to x = 0. else if (x_start_mario_q > 8'd1 && x_start_mario_q <= 8'd22 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd71) begin x_start_mario_d = x_start_mario_q-8'd1; v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end else begin v_y_d = 7'd0; setTwice_d = 1'b0; y_start_mario_d = 7'd97; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end end else if (right && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd97) begin //make mario fall down in projectile if (x_start_mario_q >= 8'd22 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd90) begin v_y_d = v_y_q + 7'd1; x_start_mario_d = x_start_mario_q+8'd1; y_start_mario_d = y_start_mario_q + v_y_q; state_draw_d = MOVE_ENEMY; end //move to right else if (x_start_mario_q > 8'd22 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd90 && y_start_mario_q <= 7'd96) begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; x_start_mario_d = x_start_mario_q+8'd1; state_draw_d = MOVE_ENEMY; end end else if (up/*(condition_up_q) || condition_up_y71_q)*/ && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd48 && y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd97) begin //do not fall into the pipe if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd61 && y_start_mario_q <= 7'd71 && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd21)) begin y_start_mario_d = 7'd71; state_draw_d = MOVE_ENEMY; end //do not fall into the ground else if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd87 && y_start_mario_q <= 7'd97 && x_start_mario_q >= 8'd1 && x_start_mario_q < 8'd48)) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end //safe to fall down or jump else begin v_y_d = v_y_q+7'd1; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else state_draw_d = MOVE_ENEMY; end /******************************************Boundary 3********************************************************/ else if(x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd82 && y_start_mario_q <= 7'd97) begin if (condition_rightup_q && (x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd82 && y_start_mario_q <= 7'd97)) begin //do not fall into the ground do not change 97 to 96, b/c this 97 prevents it from sinking into ground. if ((v_y_q >= 7'd5) && ((x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd92 && y_start_mario_q <= 7'd97))) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q+8'd2; y_start_mario_d = y_start_mario_q-7'd5 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (condition_leftup_q && (x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd82 && y_start_mario_q <= 7'd97)) begin //do not fall into the ground do not change 97 to 96, b/c this 97 prevents it from sinking into ground. if ((v_y_q >= 7'd5) && ((x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd92 && y_start_mario_q <= 7'd97))) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q-8'd2; y_start_mario_d = y_start_mario_q-7'd5 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (left && (x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd82 && y_start_mario_q <= 7'd97)) begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; x_start_mario_d = x_start_mario_q-8'd1; state_draw_d = MOVE_ENEMY; end else if (right && (x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd82 && y_start_mario_q <= 7'd97)) begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; x_start_mario_d = x_start_mario_q+8'd1; state_draw_d = MOVE_ENEMY; end else if (condition_up_q && (x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd82 && y_start_mario_q <= 7'd97)) begin //do not fall into the ground if ((v_y_q >= 7'd5) && (x_start_mario_q >= 8'd48 && x_start_mario_q <= 8'd111 && y_start_mario_q >= 7'd92 && y_start_mario_q <= 7'd97)) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; y_start_mario_d = y_start_mario_q-7'd5 + v_y_q; state_draw_d = MOVE_ENEMY; end end else begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end end /******************************************End of Boundary 3********************************************************/ /******************************************Boundary 4********************************************************/ else if(x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd155 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97) begin if (condition_rightup_q && (x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd154 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97)) begin //do not fall into the ground do not change 97 to 96, b/c this 97 prevents it from sinking into ground. if ((v_y_q >= 7'd9) && ((x_start_mario_q > 8'd150 && x_start_mario_q <= 8'd159) && (y_start_mario_q >= 7'd1 && y_start_mario_q <= 7'd97))) begin x_start_mario_d = 8'd152; y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else if ((v_y_q >= 7'd9) && ((x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd150) && (y_start_mario_q >= 7'd91 && y_start_mario_q <= 7'd97))) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q+8'd2; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (condition_leftup_q && (x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd155 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97)) begin //do not fall into the ground,and off the right screen if ((v_y_q >= 7'd9) && (x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd154 && y_start_mario_q >= 7'd87 && y_start_mario_q <= 7'd97)) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end //do not touch the bricks else if ((x_start_mario_q >= 8'd110 && x_start_mario_q <= 8'd114) && (y_start_mario_q >= 7'd63 && y_start_mario_q <= 7'd90)) begin if ((!setTwice_q) && (y_start_mario_q >= 7'd71)) begin x_start_mario_d = 8'd114; y_start_mario_d = 7'd71; setTwice_d = 1'b1; state_draw_d = MOVE_ENEMY; end else begin d_y_d = d_y_q+7'd1; x_start_mario_d = 8'd114; y_start_mario_d = y_start_mario_q + d_y_q; state_draw_d = MOVE_ENEMY; end end else //safe to fall down begin v_y_d = v_y_q+7'd1; x_start_mario_d = x_start_mario_q-8'd2; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else if (left && x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd155 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97) begin x_start_mario_d = x_start_mario_q-8'd1; v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end else if (right && x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd154 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97) begin //make mario fall down in projectile if (x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd154 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd90) begin v_y_d = v_y_d + 7'd1; x_start_mario_d = x_start_mario_q + 8'd1; y_start_mario_d = y_start_mario_q + v_y_q; state_draw_d = MOVE_ENEMY; end else begin x_start_mario_d = x_start_mario_q+8'd1; y_start_mario_d = 7'd97; v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end end else if (condition_up_q && x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd155 && y_start_mario_q >= 7'd0 && y_start_mario_q <= 7'd97) begin //do not fall into the ground if ((v_y_q >= 7'd9) && (y_start_mario_q >= 7'd87 && y_start_mario_q <= 7'd97 && x_start_mario_q > 8'd111 && x_start_mario_q <= 8'd155)) begin y_start_mario_d = 7'd97; state_draw_d = MOVE_ENEMY; end else //safe to fall down begin v_y_d = v_y_q+7'd1; y_start_mario_d = y_start_mario_q-7'd9 + v_y_q; state_draw_d = MOVE_ENEMY; end end else begin v_y_d = 7'd0; setTwice_d = 1'b0; d_y_d = 7'd0; state_draw_d = MOVE_ENEMY; end end /******************************************End of Boundary 4********************************************************/ else state_draw_d = MOVE_ENEMY; end else state_draw_d = MOVE_ENEMY; end //move the enemy MOVE_ENEMY: begin if (x_start_enemy_q >= 8'd149) leftRight_d = 1'b0; if (x_start_enemy_q <= 8'd109) leftRight_d = 1'b1; if (leftRight_d == 1'b0)//move to the left x_start_enemy_d = x_start_enemy_q - 8'd01; if (leftRight_d == 1'b1)//move to the right x_start_enemy_d = x_start_enemy_q + 8'd01; state_draw_d = MOVE_FATMARIO; end //move fat mario MOVE_FATMARIO: begin if(collision_mush_q == 1'b1 && y_start_fatmario_q != 7'd101) begin y_start_fatmario_d = y_start_fatmario_q + 7'd01; state_draw_d = MOVE_MUSH; end else state_draw_d = MOVE_MUSH; end //move the mushroom MOVE_MUSH: begin if (coll_qbrick_q && collision_mush_q == 1'b0) begin if ((mush_go_left_q) && (!mush_go_down_q) && (!mush_go_right_q)) begin x_start_mush_d = x_start_mush_q-8'd1; state_draw_d = MOVE_DEAD_MARIO; end else if ((mush_go_left_q) && (mush_go_down_q) && (!mush_go_right_q)) begin x_start_mush_d = x_start_mush_q-8'd1; y_start_mush_d = y_start_mush_q+7'd2; state_draw_d = MOVE_DEAD_MARIO; end else if ((mush_go_left_q) && (!mush_go_down_q) && (mush_go_right_q)) begin x_start_mush_d = x_start_mush_q+8'd1; state_draw_d = MOVE_DEAD_MARIO; end else state_draw_d = MOVE_DEAD_MARIO; end else state_draw_d = MOVE_DEAD_MARIO; end //Moves dead mario MOVE_DEAD_MARIO: begin if(collision_enemy_q == 1'b1 && y_start_dead_stage1mario_q != 7'd82) begin y_start_dead_stage1mario_d = y_start_dead_stage1mario_q - 7'd01; state_draw_d = DRAW_MARIO; end else if (collision_coin_q == 1'b1 && y_start_dead_stage1mario_q != 7'd30) begin y_start_dead_stage1mario_d = y_start_dead_stage1mario_q - 7'd01; state_draw_d = DRAW_MARIO; end else state_draw_d = DRAW_MARIO; end //draw mario on its new position, go back to wait again once it is done. DRAW_MARIO: begin if(collision_mush_q == 1'b0 && collision_enemy_q == 1'b0 && collision_coin_q == 1'b0) begin //draw image if (counter_y_mario_q <= 4'd09) begin color_d = color_mario; x_d = x_start_mario_d + counter_x_mario_q; y_d = y_start_mario_d + counter_y_mario_q; counter_x_mario_d = counter_x_mario_q + 4'd01; if (counter_x_mario_q == 4'd04) begin counter_y_mario_d = counter_y_mario_q + 4'd01; counter_x_mario_d = 4'd00; end end //condition for choosing next state if ((counter_x_mario_q == 4'd04) && (counter_y_mario_q == 4'd09)) begin x_start_dead_stage1mario_d = x_start_mario_q; y_start_dead_stage1mario_d = y_start_mario_q - 4'd4; counter_x_mario_d = 4'd00; counter_y_mario_d = 4'd00; state_draw_d = DRAW_ENEMY; x_start_fatmario_d = x_start_mario_q; y_start_fatmario_d = y_start_mario_q - 7'd10; end else state_draw_d = DRAW_MARIO; end else state_draw_d = DRAW_ENEMY; end DRAW_ENEMY: begin //draw image if (counter_y_enemy_q <= 4'd09) begin color_d = color_enemy; x_d = x_start_enemy_d + counter_x_enemy_q; y_d = y_start_enemy_d + counter_y_enemy_q; counter_x_enemy_d = counter_x_enemy_q + 4'd01; if (counter_x_enemy_q == 4'd09) begin counter_y_enemy_d = counter_y_enemy_q + 4'd01; counter_x_enemy_d = 4'd00; end end //condition for choosing next state if ((counter_x_enemy_q == 4'd09) && (counter_y_enemy_q == 4'd09)) begin counter_x_enemy_d = 4'd00; counter_y_enemy_d = 4'd00; state_draw_d = DRAW_MUSH; end else state_draw_d = DRAW_ENEMY; end DRAW_MUSH: begin if (coll_qbrick_q && collision_mush_q == 1'b0) begin //draw mush if (counter_y_mush_q <= 4'd09) begin color_d = color_mush; x_d = x_start_mush_d + counter_x_mush_q; y_d = y_start_mush_d + counter_y_mush_q; counter_x_mush_d = counter_x_mush_q + 4'd01; if (counter_x_mush_q == 4'd09) begin counter_y_mush_d = counter_y_mush_q + 4'd01; counter_x_mush_d = 4'd00; end end //condition for choosing next state if ((counter_x_mush_q == 4'd09) && (counter_y_mush_q == 4'd09)) begin counter_x_mush_d = 4'd00; counter_y_mush_d = 4'd00; state_draw_d = DRAW_FATMARIO; end else state_draw_d = DRAW_MUSH; //end of draw mush if ((x_start_mush_q == 8'd43) && (y_start_mush_q == 7'd63)) begin mush_go_down_d = 1'b1; mush_go_left_d = 1'b0; mush_go_right_d = 1'b0; end else if ((x_start_mush_q >= 8'd0) && (x_start_mush_q <= 8'd40) && (y_start_mush_q == 7'd97) && (!ani_mush_twice_d)) begin ani_mush_twice_d = 1'b1; mush_go_down_d = 1'b0; mush_go_left_d = 1'b1; mush_go_right_d = 1'b0; end else if (x_start_mush_q == 8'd19) begin mush_go_down_d = 1'b0; mush_go_left_d = 1'b0; mush_go_right_d = 1'b1; end else if (x_start_mush_q == 8'd90) begin mush_go_down_d = 1'b0; mush_go_left_d = 1'b1; mush_go_right_d = 1'b0; end end else state_draw_d = DRAW_FATMARIO; end //Draws Fat Mario after the mushroom is eaten DRAW_FATMARIO: begin if(collision_mush_q == 1'b1 && y_start_fatmario_q != 7'd101) begin //draw image if (counter_y_fatmario_q <= 5'd19) begin color_d = color_fat_mario; x_d = x_start_fatmario_d + counter_x_fatmario_q; y_d = y_start_fatmario_d + counter_y_fatmario_q; counter_x_fatmario_d = counter_x_fatmario_q + 4'd01; if (counter_x_fatmario_q == 4'd09) begin counter_y_fatmario_d = counter_y_fatmario_q + 5'd01; counter_x_fatmario_d = 4'd00; end end //condition for choosing next state if ((counter_x_fatmario_q == 4'd09) && (counter_y_fatmario_q == 5'd19)) begin counter_x_fatmario_d = 4'd00; counter_y_fatmario_d = 5'd00; state_draw_d = DRAW_DEAD_MARIO; end else state_draw_d = DRAW_FATMARIO; end else state_draw_d = DRAW_DEAD_MARIO; end //Draws dead mario DRAW_DEAD_MARIO: begin if(collision_coin_q == 1'b1) begin //draw dead stage 2 mario if (counter_y_dead_stage1mario_q <= 4'd13) begin color_d = color_dead_stage1_mario; x_d = x_start_dead_stage1mario_d + counter_x_dead_stage1mario_q; y_d = y_start_dead_stage1mario_d + counter_y_dead_stage1mario_q; counter_x_dead_stage1mario_d = counter_x_dead_stage1mario_q + 4'd01; if (counter_x_dead_stage1mario_q == 4'd04) begin counter_y_dead_stage1mario_d = counter_y_dead_stage1mario_q+4'd01; counter_x_dead_stage1mario_d = 4'd00; end end //condition for choosing next state if ((counter_x_dead_stage1mario_q == 4'd04) && (counter_y_dead_stage1mario_q == 4'd13)) begin counter_x_dead_stage1mario_d = 4'd00; counter_y_dead_stage1mario_d = 4'd00; state_draw_d = COLLIDE_ENEMY; end else state_draw_d = DRAW_DEAD_MARIO; end else if(collision_enemy_q == 1'b1) begin //draw dead stage 2 mario if (counter_y_dead_stage1mario_q <= 4'd13) begin color_d = color_dead_stage1_mario; x_d = x_start_dead_stage1mario_d + counter_x_dead_stage1mario_q; y_d = y_start_dead_stage1mario_d + counter_y_dead_stage1mario_q; counter_x_dead_stage1mario_d = counter_x_dead_stage1mario_q + 4'd01; if (counter_x_dead_stage1mario_q == 4'd04) begin counter_y_dead_stage1mario_d = counter_y_dead_stage1mario_q+4'd01; counter_x_dead_stage1mario_d = 4'd00; end end //condition for choosing next state if ((counter_x_dead_stage1mario_q == 4'd04) && (counter_y_dead_stage1mario_q == 4'd13)) begin counter_x_dead_stage1mario_d = 4'd00; counter_y_dead_stage1mario_d = 4'd00; state_draw_d = COLLIDE_ENEMY; end else state_draw_d = DRAW_DEAD_MARIO; end else state_draw_d = COLLIDE_ENEMY; end COLLIDE_ENEMY: begin if (((x_start_mario_q - x_start_enemy
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