This is a basic maze game I created using the Assembler.

TITLE Maze Game INCLUDE Irvine32.inc
;Wall = 35
;Exit = 88
;Player = 42
;Prize = 80
;Blank = 00
.data Maze
DWORD 35,35,35,35,35,35,35,35,35,35,35,35,88,35,35,35,35,35,35,35
rowSize = ($ - Maze)
DWORD 35,35,35,35,35,35,35,35,00,00,00,00,00,35,35,35,35,00,80,35
DWORD 35,35,35,35,35,35,35,35,00,35,35,35,35,35,35,35,35,00,35,35
DWORD 35,35,00,00,00,00,00,00,00,35,00,35,35,35,35,35,35,00,35,35
DWORD 35,35,00,35,35,35,35,35,35,35,00,35,35,35,35,35,35,00,35,35
DWORD 35,35,00,35,35,35,00,35,35,35,00,00,00,00,00,00,35,00,35,35
DWORD 35,35,00,00,00,00,00,35,35,35,00,35,35,35,35,00,00,00,35,35
DWORD 35,35,35,35,35,35,00,00,00,00,00,35,80,00,35,35,35,00,00,35
DWORD 35,35,35,35,35,35,35,35,35,35,35,35,35,00,35,35,35,35,00,35
DWORD 35,80,00,00,00,00,00,00,00,35,35,35,35,00,35,35,35,00,00,35
DWORD 35,35,35,35,35,00,35,35,00,00,00,00,00,00,35,35,35,00,35,35
DWORD 35,35,35,00,00,00,35,35,00,35,35,35,35,00,35,35,35,00,00,35
DWORD 35,35,35,00,35,35,35,35,00,35,35,35,35,00,35,35,35,35,00,35
DWORD 35,00,00,00,35,35,35,35,00,00,35,35,35,00,00,00,00,35,00,35
DWORD 35,00,35,35,00,00,00,35,35,35,35,35,35,35,35,35,00,35,00,35
DWORD 35,00,35,35,00,35,00,00,35,35,35,35,35,80,35,35,00,35,00,35
DWORD 35,00,00,35,00,35,35,00,35,35,35,35,35,00,35,35,00,00,00,35
DWORD 35,35,00,00,00,35,35,00,00,00,00,00,00,00,35,35,35,00,35,35
DWORD 35,35,35,35,80,35,35,35,35,35,42,35,35,35,35,35,35,80,35,35
DWORD 35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35
timer DWORD 100
score DWORD 100
playerPosition DWORD 1480
UPDOWN DWORD 80
LEFTRIGHT DWORD 4
messageDirections BYTE "Use the arrow keys to move", 0dh, 0ah, 0
messageTime BYTE "Time Past", 0dh, 0ah, 0
messageScore BYTE "Your Score is ", 0dh, 0ah, 0
startTime DWORD ?
divisor DWORD ?
timeTaken DWORD ?
difference DWORD ?
scoreStart DWORD ?
prizeScore DWORD 0
.code
;************************************************************************* ;********************************START**MAIN****************************** ;*************************************************************************
main PROC mov edx, 0 ;Register to end game
INVOKE GetTickCount
mov startTime, eax
GameLoop:
cmp edx, 99 ;End game value equals 99
je EndGame
call TimerScore
call ReadKey
jz GameLoop
cmp ah, 72 ;Up arrow key
je Up
cmp ah, 80 ;Down arrow key
je Down
cmp ah, 75 ;Left arrow key
je Left
cmp ah, 77 ;Right arrow key
je Right
Up:
call UpMove
call Next Down:
call DownMove
call Next Left:
call LeftMove
call Next Right:
call RightMove
call Next Next:
jmp GameLoop
EndGame:
call TimerCount
call Crlf
call WaitMsg
exit main
ENDP
;************************************************************************* ;********************************END**MAIN******************************** ;************************************************************************* ;--------------------------------------------------------------------------- ;========================================================================= ;=========================================================================
TimerScore PROC
call TimerCount
mov scoreStart, 99
mov score, eax
mov ebx, ScoreStart
mov ecx, timeTaken ;get incrementing time
sub ebx, ecx
mov edx, prizeScore
add edx, score
mov score, ebx
add ebx, prizeScore
mov score, ebx
call Draw
mov edx,OFFSET MessageScore
call WriteString ;Call Write String procdure
mov eax, score
call WriteInt
call Crlf
ret TimerScore
ENDP
UpMove PROC
mov esi, OFFSET Maze
add esi, playerPosition
sub esi, UPDOWN
;Move up
mov eax, [esi]
cmp eax, 00
;Open Spot
je ValidUp
cmp eax, 35
;Wall
je Wall
cmp eax, 80 ;Prize
je PrizeJump
cmp eax, 88 ;Exit
je ExitGame
ValidUp:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42 ;move the player charater into eax
mov [esi], eax ;move the character into the 2D array
add esi, UPDOWN ;add the constant number 80 to the 2D array
mov eax, 00 ;Move the charater into eax
mov [esi], eax ;move the character into the 2D array
mov eax, playerPosition ;Move the player position into eax
sub eax, UPDOWN ;subtract 80 from the player position
mov playerPosition, eax ;Save the new player position
jmp MoveDone
PrizeJump:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42 ;Move the player charater into eax
mov [esi], eax ;Move the character into the 2D array
add esi, UPDOWN ;Add the constant number 80 to the 2D array
mov eax, 00 ;Move the charater into eax
mov [esi], eax ;Move the character into the 2D array
mov eax, playerPosition ;Move the player position into eax
sub eax, UPDOWN ;Subtract 80 from the player position
mov playerPosition, eax ;Save the new player position
mov ebx, prizeScore
add prizeScore, 25 ;Add 25 to the score
jmp MoveDone ;Move to done
Wall:
jmp MoveDone
ExitGame:
mov edx, 99 ;exit game
MoveDone:
ret UpMove
ENDP
;========================================================================= ;=========================================================================
DownMove PROC
mov esi, OFFSET Maze
add esi, playerPosition
add esi, UPDOWN ;Move up
mov eax, [esi]
cmp eax, 00 ;Open Spot
je ValidDown
cmp eax, 35 ;Wall
je Wall
cmp eax, 80 ;Prize
je PrizeJump
cmp eax, 88 ;Exit
je ExitGame
ValidDown:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42
mov [esi], eax
sub esi, UPDOWN
mov eax, 00
mov [esi], eax
mov eax, playerPosition
add eax, UPDOWN
mov PlayerPosition, eax
jmp MoveDone
PrizeJump:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42 ;Move the player character into eax
mov [esi], eax ;Move the character into the 2D array
sub esi, UPDOWN ;Add the constant number 80 to the 2D array
mov eax, 00 ;Move the character into eax
mov [esi], eax ;Move the character into the 2D array
mov eax, playerPosition ;Move the player position into eax
add eax, UPDOWN ;Subtract 80 from the player position
mov playerPosition, eax ;Save the new player position
mov ebx, prizeScore
add prizeScore, 25 ;Add 25 to the score
jmp MoveDone ;Move to done
Wall:
jmp MoveDone
ExitGame:
mov edx, 99
MoveDone:
ret DownMove
ENDP
;=========================================================================
;=========================================================================
LeftMove PROC
mov esi, OFFSET Maze
add esi, playerPosition
sub esi, LEFTRIGHT ;Move Left
mov eax, [esi]
cmp eax, 00 ;Open Spot
je ValidLeft
cmp eax, 35
;Wall
je Wall
cmp eax, 80 ;Prize
je PrizeJump
cmp eax, 88 ;Exit
je ExitGame
ValidLeft:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42
mov [esi], eax
add esi, LEFTRIGHT
mov eax, 00
mov [esi], eax
mov eax, playerPosition
sub eax, LEFTRIGHT
mov PlayerPosition, eax
jmp MoveDone
PrizeJump:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42 ;Move the player charater into eax
mov [esi], eax
;Move the character into the 2D array
add esi, LEFTRIGHT ;Add the constant number 80 to the 2D array
mov eax, 00 ;Move the charater into eax
mov [esi], eax ;Move the character into the 2D array
mov eax, playerPosition ;Move the player position into eax
sub eax, LEFTRIGHT ;Subtract 80 from the player position
mov playerPosition, eax ;Save the new player position
mov ebx, prizeScore
add prizeScore, 25 ;Add 25 to the score
jmp MoveDone ;Move to done
Wall:
jmp MoveDone
ExitGame:
mov edx, 99
MoveDone:
ret LeftMove
ENDP
;========================================================================= ;=========================================================================
RightMove PROC
mov esi, OFFSET Maze
add esi, playerPosition
add esi, LEFTRIGHT
;Move Left
mov eax, [esi]
cmp eax, 00
;Open Spot
je ValidRight
cmp eax, 35 ;Wall
je Wall
cmp eax, 80 ;Prize
je PrizeJump
cmp eax, 88 ;Exit
je ExitGame
ValidRight:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42
mov [esi], eax
sub esi, LEFTRIGHT
mov eax, 00
mov [esi], eax
mov eax, playerPosition
add eax, LEFTRIGHT
mov playerPosition, eax
jmp MoveDone
PrizeJump:
mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
mov eax, 42 ;Move the player charater into eax
mov [esi], eax ;Move the character into the 2D array
sub esi, LEFTRIGHT ;Add the constant number 80 to the 2D array
mov eax, 00 ;Move the charater into eax
mov [esi], eax ;Move the character into the 2D array
mov eax, playerPosition ;Move the player position into eax
add eax, LEFTRIGHT ;Subtract 80 from the player position
mov playerPosition, eax ;Save the new player position
mov ebx, prizeScore ;Move the score to the register
add prizeScore, 25 ;Add 25 to the score
jmp MoveDone ;Move to done
Wall:
jmp MoveDone
ExitGame:
mov edx, 99
MoveDone:
ret RightMove
ENDP
;========================================================================= ;=========================================================================
Draw PROC
mov dh, 0 ;Set maze position X
mov dl, 0 ;Set maze position Y
call Gotoxy ;Call Go to X Y
mov ebx, OFFSET Maze ;Move the maze 2D array into ebx
mov ecx, 0 ;intialize the counter
PrintLoop:
mov eax, [ebx] ;Move the indirect value of ebx postion 1 into eax
add ebx, 4 ;Move to the next offset position
inc ecx ;Increment the counter
call WriteChar ;Write Character
cmp ecx, 20 ;Compare for end of row for each 20 positions
je NextLine
cmp ecx, 40
je NextLine
cmp ecx, 60
je NextLine
cmp ecx, 80
je NextLine
cmp ecx, 100
je NextLine
cmp ecx, 120
je NextLine
cmp ecx, 140
je NextLine
cmp ecx, 160
je NextLine
cmp ecx, 180
je NextLine
cmp ecx, 200
je NextLine
cmp ecx, 220
je NextLine
cmp ecx, 240
je NextLine
cmp ecx, 260
je NextLine
cmp ecx, 280
je NextLine
cmp ecx, 300
je NextLine
cmp ecx, 320
je NextLine
cmp ecx, 340
je NextLine
cmp ecx, 360
je NextLine
cmp ecx, 380
je NextLine
cmp ecx, 400
jne PrintLoop
jmp Print
NextLine:
call Crlf
jmp PrintLoop
Print:
call Crlf
mov edx,OFFSET MessageDirections
call WriteString ;Call Write String procdure ret Draw ENDP
;========================================================================= ;=========================================================================
TimerCount PROC
INVOKE GetTickCount
sub eax, startTime
mov divisor, 1000 ;milisecs div divisor
mov edx,OFFSET messageTime
call WriteString
mov timeTaken, eax
call WriteInt ;Call Write String procdure
ret TimerCount ENDP
;========================================================================= ;=========================================================================
END main