Processing 自动贪吃蛇脚本
2024-06-09 05:31:22
スマートインフォメディアシステム特論 期末课题
用Processing写贪吃蛇脚本，有手动和自动两种模式，程序开始直接手动控制，GG一次后可以选择RESTART重新开始，或者AI MODE进入自动模式。其中AI MODE模式有两种报酬计算方法，或者两种距离算法，distance_type=1 表示曼哈顿距离， distance_type=2 表示欧拉距离。具体代码直接贴出来，放到Processing 2.XX 里应该是可以直接运行的。
int game_pause = -1;
int snake_length_max = 800;
int snake_length = 10;
int grid = 10;
int Length = 600;
int score = 0;
int count = 0;
int frame_rate = 15;
int distance_type = 1;
char snake_direction = 'L';
char snake_direction_tmp = snake_direction;
boolean food_eaten = true;
boolean stop = false;
boolean ai_flag = true;PVector [] snake = new PVector[snake_length_max];
PVector food;
PVector [] neighbor = new PVector[4];int interval = 100;
int button_width = 150;
int button_height = 50;
boolean rectOver1, rectOver2, rectOver3 = false;char [] direction_array = new char[4];void setup(){size(600, 800);make_background();frameRate(frame_rate);initial_snake();food = new PVector(Length/4, Length/4);direction_array[0] = 'U';direction_array[1] = 'L';direction_array[2] = 'D';direction_array[3] = 'R';for (int i=0; i<4; i++){neighbor[i] = new PVector(0,0);
}}void draw(){count++;make_background();draw_arrow();draw_food();if (ai_flag && count > 2){ai_mode(); }if(!stop){ switch(snake_direction) {case 'L':snake[0].set(snake[0].x-grid, snake[0].y);break;case 'R':snake[0].set(snake[0].x+grid, snake[0].y);break; case 'D':snake[0].set(snake[0].x, snake[0].y+grid);break;case 'U':snake[0].set(snake[0].x, snake[0].y-grid);break;}}if (snake_direction != 'P'){check_snake_end(); }draw_snake();if (snake[0].x == food.x && snake[0].y == food.y){food_eaten = true;snake_length++;score+=10;frame_rate++;frameRate(frame_rate);}}void initial_snake()
{for (int i = snake_length-1; i >= 0 ; i--){snake[i] = new PVector(Length/2, Length/2-i);}
}void draw_snake(){if (snake_direction != 'P' && !stop){for (int i = snake_length - 1; i>0; i--){if (i == snake_length - 1){snake[i] = new PVector(snake[i-1].x, snake[i-1].y); }else{snake[i].set(snake[i-1].x, snake[i-1].y);}}}fill(50, 131, 168);for(int i=0; i<snake_length; i++){rect(snake[i].x, snake[i].y, grid, grid); }
}void draw_food(){if (food_eaten){while(food_check()){food.set(int(random(0, Length) / grid) * grid, int(random(0, Length) / grid) * grid);}}fill(252,3,3);rect(food.x, food.y, grid, grid);food_eaten = false;
}boolean food_check()
{boolean check = false;for (int i = 0; i < snake_length-1; i++){if (food.x == snake[i].x && food.y == snake[i].y){check = true;break;}} return check;
}void keyPressed()
{if(snake_direction != 'P' && keyPressed && key == CODED){switch(keyCode) {case LEFT:if (snake_direction != 'R'){snake_direction = 'L'; }break;case RIGHT:if (snake_direction != 'L'){snake_direction = 'R'; }break;case DOWN:if (snake_direction != 'U'){snake_direction = 'D'; }break;case UP:if (snake_direction != 'D'){snake_direction = 'U'; }break; }}if(key == 'P' || key == 'p'){game_pause *= -1;if (game_pause > 0){snake_direction_tmp = snake_direction;snake_direction = 'P';}else{snake_direction = snake_direction_tmp; }}
}void show_game_over()
{make_background();draw_arrow();int textsize = 100;textSize(textsize);fill(0);text("GGWP", Length/2 - textsize*1.5, Length/2-100);stop = true;draw_button();//stop();
}void check_snake_end()
{if (snake[0].x <= 0 - grid/2 || snake[0].x > Length - grid/2 || snake[0].y < 0 - grid/2 || snake[0].y > Length - grid){show_game_over();}if (snake_length > 2){for (int i = 1; i<snake_length-1; i++){if (snake[0].x == snake[i].x && snake[0].y == snake[i].y) {show_game_over();}}}
}void make_background(){background(0);fill(255);rect(0,0,Length,Length);if(snake_direction == 'P'){int textsize = 100;fill(0, 60);rect(0,0,Length,Length); textSize(textsize);fill(255);text("PAUSE", Length/2 - textsize*1.5, Length/2-100);}
}void draw_arrow(){int a = 30;int b = 30;int origin_y = Length;//fill(255);beginShape(TRIANGLES);//UPif (snake_direction == 'U' && !ai_flag){fill(3, 252, 73);}else{fill(255); }vertex(2*b + a/2 + a/2*sqrt(3), origin_y + b);vertex(2*b + a/2*sqrt(3), origin_y + b + a/2*sqrt(3));vertex(2*b + a/2*sqrt(3) + a, origin_y + b + a/2*sqrt(3));if (snake_direction == 'L' && !ai_flag){fill(3, 252, 73);}else{fill(255); }//LEFTvertex(b, origin_y+ 2*b + a/2*sqrt(3) + a/2);vertex(b + a/2*sqrt(3), origin_y + 2*b + a/2*sqrt(3));vertex(b + a/2*sqrt(3), origin_y + 2*b + a/2*sqrt(3) + a);if (snake_direction == 'D' && !ai_flag){fill(3, 252, 73);}else{fill(255); }//DOWNvertex(2*b + a/2*sqrt(3), origin_y + 3*b + a/2*sqrt(3) + a);vertex(2*b + a/2*sqrt(3) + a, origin_y + 3*b + a/2*sqrt(3) + a);vertex(2*b + a/2*sqrt(3) + a/2, origin_y + 3*b + a + a*sqrt(3));if (snake_direction == 'R' && !ai_flag){fill(3, 252, 73);}else{fill(255); }//RIGHTvertex(3*b + a + a/2*sqrt(3), origin_y + 2*b + a/2*sqrt(3));vertex(3*b + a + a/2*sqrt(3), origin_y + 2*b + a/2*sqrt(3) + a);vertex(3*b + a + a*sqrt(3), origin_y + 2*b + a/2 + a/2*sqrt(3));endShape();if (snake_direction == 'P' && ai_flag){fill(3, 252, 73);}else {fill(225);}ellipse(2*b + a/2 + a/2*sqrt(3), origin_y + 2*b + a/2 + a/2*sqrt(3), a+20, a+20);fill(0);textSize(40);text("P", 2*b + a/2 + a/2*sqrt(3)-12, origin_y + 2*b + a/2 + a/2*sqrt(3)+13);fill(255);textSize(30);if (!ai_flag){text("Player Mode", 300, origin_y + 110);}else{text("AI Mode", 300, origin_y + 110);}fill(255);textSize(30);text("Score: ", 300, origin_y + 150);text(score, 400, origin_y + 150);fill(255);textSize(25);if (distance_type == 1 && ai_flag){text("Manhattan distance", 300, origin_y + 60);}else if(distance_type == 2 && ai_flag){text("Euclidean distance", 300, origin_y + 60);}}void draw_button() {int a = button_width;int b = button_height;int line_wieght = 3;int round = 8;update();//restartif (rectOver1){fill(100); }else{fill(255);}strokeWeight(line_wieght);rect(Length/2 - a/2, Length/2 - b/2, a, b, round);fill(0);int textsize = 25;textSize(textsize);text("RESTART",Length/2-50, Length/2+10);//exitif (rectOver2){fill(100); }else{fill(255);}strokeWeight(line_wieght);rect(Length/2 - a/2, Length/2 - b/2 + interval, a, b, round);fill(0);textSize(textsize);text("EXIT",Length/2-25, Length/2+10+interval);//AI modelif (rectOver3){fill(100); }else{fill(255);}strokeWeight(line_wieght);rect(Length/2 - a/2, Length/2 - b/2 + 2*interval, a, b, round);fill(0);textSize(textsize);text("AI MODE",Length/2-50, Length/2+10+2*interval); strokeWeight(1);
}boolean overRect(int x, int y, int width, int height) {if (mouseX >= x && mouseX <= x+width && mouseY >= y && mouseY <= y+height) {return true;} else {return false;}
}void update(){if ( overRect(Length/2 - button_width/2, Length/2 - button_height/2, button_width, button_height)){rectOver1 = true; }else{rectOver1 = false;}if( overRect(Length/2 - button_width/2, Length/2 - button_height/2 + interval, button_width, button_height)){rectOver2 = true;}else{rectOver2 = false; }if( overRect(Length/2 - button_width/2, Length/2 - button_height/2 + 2*interval, button_width, button_height)){rectOver3 = true;}else{rectOver3 = false; }
}void mousePressed() {if (rectOver1){reset();stop = false;ai_flag = false;frame_rate = 15;} if (rectOver2){exit();} if (rectOver3){reset();stop = false;ai_flag = true;frame_rate = 20;ai_mode();}
}void reset(){snake_length = 10;snake = new PVector[snake_length_max];initial_snake();food = new PVector(Length/4, Length/4);score = 0;
}void ai_mode(){neighbor[0].set(snake[0].x, snake[0].y-grid); // upneighbor[1].set(snake[0].x-grid, snake[0].y); // leftneighbor[2].set(snake[0].x, snake[0].y+grid); // downneighbor[3].set(snake[0].x+grid, snake[0].y); // rightfloat tmp = Length*3;int target = 0;for (int i=0; i<4; i++){if (snake_direction == 'L' && i == 3){continue; }else if (snake_direction == 'R' && i == 1){ continue;}else if (snake_direction == 'U' && i == 2){continue;}else if (snake_direction == 'D' && i == 0){continue;}else if (body_check(direction_array[i])){continue; }else if (get_distance(neighbor[i]) <= tmp){tmp = get_distance(neighbor[i]);target = i;}}if (target == 0){snake_direction = 'U';}else if (target == 1){snake_direction = 'L'; }else if (target == 2){snake_direction = 'D'; }else if (target == 3){snake_direction = 'R'; }
}float get_distance(PVector neighbor){float distance;if (distance_type == 1){distance = abs(food.y - neighbor.y) + abs(food.x - neighbor.x); // Manhattan}else{distance = sqrt(pow(food.y - neighbor.y,2) + pow(food.x - neighbor.x,2)); // Euclidean}return distance;
}boolean body_check(char direction){boolean check = false;for (int i=1; i<snake_length-1; i++){if ((snake[i].y == snake[0].y && snake[i].x > snake[0].x) && direction == 'R'){check = true;break;}else if((snake[i].y == snake[0].y && snake[i].x < snake[0].x) && direction == 'L'){check = true;break;}else if((snake[i].x == snake[0].x && snake[i].y < snake[0].y) && direction == 'U'){check = true;break; }else if((snake[i].x == snake[0].x && snake[i].y > snake[0].y) && direction == 'D'){check = true;break; }}return check;
}
参考
TonyIOT: Processing笔记05—贪吃蛇小游戏
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