shell脚本编写的flipbird

Myth丶恋晨 2022-08-10 03:54 265阅读 0赞

最近在学习shell脚本方面，所以写了这个flipbird游戏，自娱自乐+锻炼一下+提升动力，比较好维护但是有点啰嗦。

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#!/bin/bash
    function random(){
    	min=$1
    	max=`expr $2 - $1`
    	num=$RANDOM
        <span style="white-space:pre">	</span>temp=$(( $num % $max ))
    	retnum=$(( $temp + $min ))
    	echo $retnum
    }
    function print_bird()
    {
    	x=$1
    	y=$2
    	tput setf 6
    	tput bold
    	tput sc
    	tput cup $y $x
    	printf '   ______';((y++));tput cup $y $x
    	printf ' _/   /  \ ';((y++));tput cup $y $x
    	printf '/  \  \__0|_';((y++));tput cup $y $x
    	printf '\__|    /___\ ';((y++));tput cup $y $x
    	printf ' \______\___/';
    	tput rc
    }
    # x r h is_top
    function print_pillar(){
    	if [ $3 -gt 0 ]; then
    		left=`expr $1 - $2`
    		right=`expr $1 + $2`
    		width=`expr $right -  $left`
    		top=0
    		bottom=$3
    
    		is_top=$4
    		if [ $is_top -eq 0 ]; then
    			bottom=$( tput lines )
    			top=`expr $bottom - $3`
    		fi
    		tput sc
    
    		temp=`expr $width - 2`
    		command=$( printf '|%%-%ds|' $temp )
    		for i in $( seq $top $bottom );
    		do
    			#plot the bottom pillar's top line
    			if [ $i -eq $top ] && [ $is_top -eq 0 ]; then
    				temp=`expr $top - 1`
    				tput cup $temp $left
    				for j in $( seq $width );
    				do
    					printf "_"
    				done
    			fi
    			#plot the pillar's stick
    			tput cup $i $left
    			printf "$command" " "
    			#plot the top pillar's bottom line
    			if [ $i -eq $bottom ] && [ $is_top -gt 0 ]; then
    				temp=`expr $left + 1`
    				tput cup $i $temp
    				temp=`expr $width - 2`
    				for j in $( seq $temp );
    				do
    					printf "_"
    				done
    			fi
    		done
    		tput rc
    	fi
    }
    #*********************************
    # mode set
    ##################################
    tput clear
    echo -e "\033[?25l"
    ##################################
    # parameters set
    ##################################
    init_g=10
    init_x=5
    init_y=`expr $( tput lines ) / 2`
    init_v=0
    
    speed=2
    space=30
    bird_r=5
    line_top=8
    line_bot=30
    left_space_min=2
    left_space_max=10
    pillar_w=4
    bird_w=13
    bird_h=4
    g_bird_x=$init_x 
    g_bird_y=$init_y 
    g_bird_v=$init_v 
    g_bird_a=$init_g
    
    g_line=()
    g_line_x=()
    g_pillars_x=()
    g_pillars_r=()
    g_pillars_h=()
    g_pillars_is_top=()
    ##################################
    # init the pillars
    ##################################
    
    bottom_border=$( tput lines )
    right_border=$( tput cols )
    temp=`expr $right_border / $space`
    point_num=`expr $temp + 3`
    for init_t in $(seq $point_num);
    do
    	temp=$(($init_t*$space))
    	pass_pos=$(random $line_top $line_bot)
    	g_line=("${g_line[@]}" $pass_pos)
    	g_line_x=("${g_line_x[@]}" $temp)
    	if [ $(($RANDOM%10)) -lt 8 ]; then
    		left_space=$( random $left_space_min $left_space_max )
    		# add the top pillar
    		temp=$(($init_t*$space))
    		g_pillars_x=("${g_pillars_x[@]}" $temp)
    		g_pillars_r=("${g_pillars_r[@]}" $pillar_w)
    		temp=$(($pass_pos-$bird_r -$left_space))
    		if [ $temp -lt 1 ];then
    			temp=0
    		fi
    		g_pillars_h=("${g_pillars_h[@]}" $temp)
    		g_pillars_is_top=("${g_pillars_is_top[@]}" 1)
    		# add the bottom pillar
    		temp=$(($init_t*$space))
    		g_pillars_x=("${g_pillars_x[@]}" $temp)
    		g_pillars_r=("${g_pillars_r[@]}" $pillar_w)
    		temp=$(($bottom_border-$pass_pos-$bird_r-$left_space))
    		if [ $temp -lt 1 ];then
    			temp=0
    		fi
    		g_pillars_h=("${g_pillars_h[@]}" $temp)
    		g_pillars_is_top=("${g_pillars_is_top[@]}" 0)
    	fi
    done
    ######################################
    # make the pillars move
    ######################################
    loop_num=0
    while :
    do
    	loop_num=`expr $loop_num + 1`
    	# read in the user's operation
    	is_jump=0
    	read -n 1 -t 0.01 $letter && is_jump=1
    	# update the pillars' position
    	for p_id in $( seq ${#g_pillars_x[@]} );
    	do
    		id=`expr $p_id - 1`
    		g_pillars_x[$id]=`expr ${g_pillars_x[$id]} - 1`
    	done
    	for l_id in $( seq ${#g_line_x[@]} );
    	do
    		id=`expr $l_id - 1`
    		g_line_x[$id]=`expr ${g_line_x[$id]} - 1`
    	done	
    	# update the bird's position
    	if [ $is_jump -eq 0 ];then
    		g_bird_v=$(( $g_bird_a / 4 + $g_bird_v ))
    	else
    		g_bird_v=-8
    	fi
    	g_bird_y=$(( $g_bird_y + $g_bird_v / 4 ))
    
    	# check whether the game is over
    	pillar_num=${#g_pillars_x[@]}
    	is_over=0
    	if [ $g_bird_y -lt 0 ] || [ $g_bird_y -gt $bottom_border ]; then 
    		is_over=1
    	fi
    	for p_id in $( seq $pillar_num ); do
    		{
    		id=`expr $p_id - 1`
    		temp_pillar_left=`expr ${g_pillars_x[$id]} - ${g_pillars_r[$id]}`
    		temp_pillar_right=`expr ${g_pillars_x[$id]} + ${g_pillars_r[$id]}`
    		temp_pillar_pos=`expr $bottom_border - ${g_pillars_h[$id]}`
    		temp_bird_right=`expr $g_bird_x + $bird_w`
    		temp_bird_bot=`expr $g_bird_y + $bird_h`
    		if [ ${g_pillars_is_top[$id]} -gt 0 ]; then
    			if [ $temp_bird_right -gt $temp_pillar_left ] && [ $g_bird_x -lt $temp_pillar_right ] && [ $g_bird_y -lt ${g_pillars_h[$id]} ]; then
    				tput clear
    				is_over=1
    				echo "TOUCH THE TOP PILLAR"
    				exit
    			fi
    		else 
    			if [ $temp_bird_right -gt $temp_pillar_left  ] && [ $g_bird_x -lt $temp_pillar_right  ] && [ $temp_bird_bot -gt $temp_pillar_pos ]; then
    				tput clear
    				is_over=1
    				echo "TOUCH THE BOTTOM PILLAR"
    				exit
    			fi
    		fi	
    		} 
    	done
    	# if bird touch the pillar then the game over
    	if [ $is_over -gt 0 ]; then
    		tput clear
    		echo "GAME OVER"
    		exit
    	fi
    	# check whether need to add one new pillar
    	if [ ${g_line_x[0]} -lt 0 ]; then
    		# delete the line point and remove the pillar if exist
    		g_line_x=(${g_line_x[@]:1:${#g_line_x[@]}})
    		g_line=(${g_line[@]:1:${#g_line[@]}})
    	fi
    	if [ ${g_pillars_x[0]} -lt 0 ]; then
    		g_pillars_x=(${g_pillars_x[@]:1:${#g_pillars_x[@]}})
    		g_pillars_r=(${g_pillars_r[@]:1:${#g_pillars_r[@]}})
    		g_pillars_h=(${g_pillars_h[@]:1:${#g_pillars_h[@]}})
    		g_pillars_is_top=(${g_pillars_is_top[@]:1:${#g_pillars_is_top[@]}})
    	fi
    	
    	# add a new line point and a new pillar if fall into possibility
    	if [ ${#g_line_x[@]} -lt $point_num ]; then
    		last_id=`expr ${#g_line_x[@]} - 1`
    		temp=`expr ${g_line_x[$last_id]} + $space`
    		pass_pos=$(random $line_top $line_bot)
    		g_line=("${g_line[@]}" $pass_pos)
    		g_line_x=("${g_line_x[@]}" $temp)
    		if [ $(random 0 10) -lt 18 ]; then 
    			left_space=$( random $left_space_min $left_space_max)
    			g_pillars_x=("${g_pillars_x[@]}" $temp)
    			g_pillars_r=("${g_pillars_r[@]}" 3)
    			g_pillars_x=("${g_pillars_x[@]}" $temp)
    			g_pillars_r=("${g_pillars_r[@]}" 3)
    
    			temp=$(($pass_pos - $bird_r - $left_space))
    			g_pillars_h=("${g_pillars_h[@]}" $temp)
    			g_pillars_is_top=("${g_pillars_is_top[@]}" 1)
    			temp=$(($bottom_border - $pass_pos - $bird_r - $left_space)) 
    			g_pillars_h=("${g_pillars_h[@]}" $temp)
    			g_pillars_is_top=("${g_pillars_is_top[@]}" 0)
    		fi
    	fi
    	# display the pillars
    	tput clear
    	if [ ${#g_pillars_h[@]} -gt 0 ] && [ ${#g_pillars_x[@]} -eq ${#g_pillars_r[@]} ] && [ ${#g_pillars_r[@]} -eq ${#g_pillars_h[@]} ] && [ ${#g_pillars_x[@]} -eq ${#g_pillars_is_top[@]} ]; then
    		for p_id in $( seq ${#g_pillars_x[@]} ); do
    			{
    
    				id=`expr $p_id - 1`
    				cur_x=${g_pillars_x[$id]} 
    				cur_r=${g_pillars_r[$id]} 
    				cur_h=${g_pillars_h[$id]} 
    				cur_is_top=${g_pillars_is_top[$id]}
    				temp_pillar_right=`expr $cur_x + $cur_r`
    				if [ $temp_pillar_right -lt $right_border ] && [ $cur_x -gt $cur_r ]; then
    					print_pillar $cur_x $cur_r $cur_h $cur_is_top
    				fi
    			}
    		done
    	fi
    	print_bird $g_bird_x $g_bird_y 
    done

[Center]: /images/20220731/bc0ecaedfc1546429ab2a83f9111840f.png