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This is a basic maze game I created using the Assembler.
1		This is a basic maze game I created using the Assembler.
2
3		TITLE Maze Game INCLUDE Irvine32.inc
4		;Wall = 35
5		;Exit = 88
6		;Player = 42
7		;Prize = 80
8		;Blank = 00
9		.data Maze
10		DWORD 35,35,35,35,35,35,35,35,35,35,35,35,88,35,35,35,35,35,35,35
11		rowSize = ($ - Maze)
12		DWORD 35,35,35,35,35,35,35,35,00,00,00,00,00,35,35,35,35,00,80,35
13		DWORD 35,35,35,35,35,35,35,35,00,35,35,35,35,35,35,35,35,00,35,35
14		DWORD 35,35,00,00,00,00,00,00,00,35,00,35,35,35,35,35,35,00,35,35
15		DWORD 35,35,00,35,35,35,35,35,35,35,00,35,35,35,35,35,35,00,35,35
16		DWORD 35,35,00,35,35,35,00,35,35,35,00,00,00,00,00,00,35,00,35,35
17		DWORD 35,35,00,00,00,00,00,35,35,35,00,35,35,35,35,00,00,00,35,35
18		DWORD 35,35,35,35,35,35,00,00,00,00,00,35,80,00,35,35,35,00,00,35
19		DWORD 35,35,35,35,35,35,35,35,35,35,35,35,35,00,35,35,35,35,00,35
20		DWORD 35,80,00,00,00,00,00,00,00,35,35,35,35,00,35,35,35,00,00,35
21		DWORD 35,35,35,35,35,00,35,35,00,00,00,00,00,00,35,35,35,00,35,35
22		DWORD 35,35,35,00,00,00,35,35,00,35,35,35,35,00,35,35,35,00,00,35
23		DWORD 35,35,35,00,35,35,35,35,00,35,35,35,35,00,35,35,35,35,00,35
24		DWORD 35,00,00,00,35,35,35,35,00,00,35,35,35,00,00,00,00,35,00,35
25		DWORD 35,00,35,35,00,00,00,35,35,35,35,35,35,35,35,35,00,35,00,35
26		DWORD 35,00,35,35,00,35,00,00,35,35,35,35,35,80,35,35,00,35,00,35
27		DWORD 35,00,00,35,00,35,35,00,35,35,35,35,35,00,35,35,00,00,00,35
28		DWORD 35,35,00,00,00,35,35,00,00,00,00,00,00,00,35,35,35,00,35,35
29		DWORD 35,35,35,35,80,35,35,35,35,35,42,35,35,35,35,35,35,80,35,35
30		DWORD 35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35,35
31		timer DWORD 100
32		score DWORD 100
33		playerPosition DWORD 1480
34		UPDOWN DWORD 80
35		LEFTRIGHT DWORD 4
36		messageDirections BYTE "Use the arrow keys to move", 0dh, 0ah, 0
37		messageTime BYTE "Time Past", 0dh, 0ah, 0
38		messageScore BYTE "Your Score is ", 0dh, 0ah, 0
39		startTime DWORD ?
40		divisor DWORD ?
41		timeTaken DWORD ?
42		difference DWORD ?
43		scoreStart DWORD ?
44		prizeScore DWORD 0
45		.code
46		;*********************************************************************** ;****************************STARTMAIN**************************** ;***********************************************************************
47		main PROC mov edx, 0 ;Register to end game
48		INVOKE GetTickCount
49		mov startTime, eax
50		GameLoop:
51		cmp edx, 99 ;End game value equals 99
52		je EndGame
53		call TimerScore
54		call ReadKey
55		jz GameLoop
56		cmp ah, 72 ;Up arrow key
57		je Up
58		cmp ah, 80 ;Down arrow key
59		je Down
60		cmp ah, 75 ;Left arrow key
61		je Left
62		cmp ah, 77 ;Right arrow key
63		je Right
64		Up:
65		call UpMove
66		call Next Down:
67		call DownMove
68		call Next Left:
69		call LeftMove
70		call Next Right:
71		call RightMove
72		call Next Next:
73		jmp GameLoop
74		EndGame:
75		call TimerCount
76		call Crlf
77		call WaitMsg
78		exit main
79		ENDP
80		;*********************************************************************** ;****************************ENDMAIN****************************** ;*********************************************************************** ;--------------------------------------------------------------------------- ;========================================================================= ;=========================================================================
81		TimerScore PROC
82		call TimerCount
83		mov scoreStart, 99
84		mov score, eax
85		mov ebx, ScoreStart
86		mov ecx, timeTaken ;get incrementing time
87		sub ebx, ecx
88		mov edx, prizeScore
89		add edx, score
90		mov score, ebx
91		add ebx, prizeScore
92		mov score, ebx
93		call Draw
94		mov edx,OFFSET MessageScore
95		call WriteString ;Call Write String procdure
96		mov eax, score
97		call WriteInt
98		call Crlf
99		ret TimerScore
100		ENDP
101		UpMove PROC
102		mov esi, OFFSET Maze
103		add esi, playerPosition
104		sub esi, UPDOWN
105		;Move up
106		mov eax, [esi]
107		cmp eax, 00
108		;Open Spot
109		je ValidUp
110		cmp eax, 35
111		;Wall
112		je Wall
113		cmp eax, 80 ;Prize
114		je PrizeJump
115		cmp eax, 88 ;Exit
116		je ExitGame
117		ValidUp:
118		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
119		mov eax, 42 ;move the player charater into eax
120		mov [esi], eax ;move the character into the 2D array
121		add esi, UPDOWN ;add the constant number 80 to the 2D array
122		mov eax, 00 ;Move the charater into eax
123		mov [esi], eax ;move the character into the 2D array
124		mov eax, playerPosition ;Move the player position into eax
125		sub eax, UPDOWN ;subtract 80 from the player position
126		mov playerPosition, eax ;Save the new player position
127		jmp MoveDone
128		PrizeJump:
129		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
130		mov eax, 42 ;Move the player charater into eax
131		mov [esi], eax ;Move the character into the 2D array
132		add esi, UPDOWN ;Add the constant number 80 to the 2D array
133		mov eax, 00 ;Move the charater into eax
134		mov [esi], eax ;Move the character into the 2D array
135		mov eax, playerPosition ;Move the player position into eax
136		sub eax, UPDOWN ;Subtract 80 from the player position
137		mov playerPosition, eax ;Save the new player position
138		mov ebx, prizeScore
139		add prizeScore, 25 ;Add 25 to the score
140		jmp MoveDone ;Move to done
141		Wall:
142		jmp MoveDone
143		ExitGame:
144		mov edx, 99 ;exit game
145		MoveDone:
146		ret UpMove
147		ENDP
148		;========================================================================= ;=========================================================================
149		DownMove PROC
150		mov esi, OFFSET Maze
151		add esi, playerPosition
152		add esi, UPDOWN ;Move up
153		mov eax, [esi]
154		cmp eax, 00 ;Open Spot
155		je ValidDown
156		cmp eax, 35 ;Wall
157		je Wall
158		cmp eax, 80 ;Prize
159		je PrizeJump
160		cmp eax, 88 ;Exit
161		je ExitGame
162		ValidDown:
163		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
164		mov eax, 42
165		mov [esi], eax
166		sub esi, UPDOWN
167		mov eax, 00
168		mov [esi], eax
169		mov eax, playerPosition
170		add eax, UPDOWN
171		mov PlayerPosition, eax
172		jmp MoveDone
173		PrizeJump:
174		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
175		mov eax, 42 ;Move the player character into eax
176		mov [esi], eax ;Move the character into the 2D array
177		sub esi, UPDOWN ;Add the constant number 80 to the 2D array
178		mov eax, 00 ;Move the character into eax
179		mov [esi], eax ;Move the character into the 2D array
180		mov eax, playerPosition ;Move the player position into eax
181		add eax, UPDOWN ;Subtract 80 from the player position
182		mov playerPosition, eax ;Save the new player position
183		mov ebx, prizeScore
184		add prizeScore, 25 ;Add 25 to the score
185		jmp MoveDone ;Move to done
186		Wall:
187		jmp MoveDone
188		ExitGame:
189		mov edx, 99
190		MoveDone:
191		ret DownMove
192		ENDP
193		;=========================================================================
194		;=========================================================================
195		LeftMove PROC
196		mov esi, OFFSET Maze
197		add esi, playerPosition
198		sub esi, LEFTRIGHT ;Move Left
199		mov eax, [esi]
200		cmp eax, 00 ;Open Spot
201		je ValidLeft
202		cmp eax, 35
203		;Wall
204		je Wall
205		cmp eax, 80 ;Prize
206		je PrizeJump
207		cmp eax, 88 ;Exit
208		je ExitGame
209		ValidLeft:
210		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
211		mov eax, 42
212		mov [esi], eax
213		add esi, LEFTRIGHT
214		mov eax, 00
215		mov [esi], eax
216		mov eax, playerPosition
217		sub eax, LEFTRIGHT
218		mov PlayerPosition, eax
219		jmp MoveDone
220		PrizeJump:
221		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
222		mov eax, 42 ;Move the player charater into eax
223		mov [esi], eax
224		;Move the character into the 2D array
225		add esi, LEFTRIGHT ;Add the constant number 80 to the 2D array
226		mov eax, 00 ;Move the charater into eax
227		mov [esi], eax ;Move the character into the 2D array
228		mov eax, playerPosition ;Move the player position into eax
229		sub eax, LEFTRIGHT ;Subtract 80 from the player position
230		mov playerPosition, eax ;Save the new player position
231		mov ebx, prizeScore
232		add prizeScore, 25 ;Add 25 to the score
233		jmp MoveDone ;Move to done
234		Wall:
235		jmp MoveDone
236		ExitGame:
237		mov edx, 99
238		MoveDone:
239		ret LeftMove
240		ENDP
241		;========================================================================= ;=========================================================================
242		RightMove PROC
243		mov esi, OFFSET Maze
244		add esi, playerPosition
245		add esi, LEFTRIGHT
246		;Move Left
247		mov eax, [esi]
248		cmp eax, 00
249		;Open Spot
250		je ValidRight
251		cmp eax, 35 ;Wall
252		je Wall
253		cmp eax, 80 ;Prize
254		je PrizeJump
255		cmp eax, 88 ;Exit
256		je ExitGame
257		ValidRight:
258		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
259		mov eax, 42
260		mov [esi], eax
261		sub esi, LEFTRIGHT
262		mov eax, 00
263		mov [esi], eax
264		mov eax, playerPosition
265		add eax, LEFTRIGHT
266		mov playerPosition, eax
267		jmp MoveDone
268		PrizeJump:
269		mov eax, playerPosition ;Move the indirect value of ebx postion 1 into eax
270		mov eax, 42 ;Move the player charater into eax
271		mov [esi], eax ;Move the character into the 2D array
272		sub esi, LEFTRIGHT ;Add the constant number 80 to the 2D array
273		mov eax, 00 ;Move the charater into eax
274		mov [esi], eax ;Move the character into the 2D array
275		mov eax, playerPosition ;Move the player position into eax
276		add eax, LEFTRIGHT ;Subtract 80 from the player position
277		mov playerPosition, eax ;Save the new player position
278		mov ebx, prizeScore ;Move the score to the register
279		add prizeScore, 25 ;Add 25 to the score
280		jmp MoveDone ;Move to done
281		Wall:
282		jmp MoveDone
283		ExitGame:
284		mov edx, 99
285		MoveDone:
286		ret RightMove
287		ENDP
288		;========================================================================= ;=========================================================================
289		Draw PROC
290		mov dh, 0 ;Set maze position X
291		mov dl, 0 ;Set maze position Y
292		call Gotoxy ;Call Go to X Y
293		mov ebx, OFFSET Maze ;Move the maze 2D array into ebx
294		mov ecx, 0 ;intialize the counter
295		PrintLoop:
296		mov eax, [ebx] ;Move the indirect value of ebx postion 1 into eax
297		add ebx, 4 ;Move to the next offset position
298		inc ecx ;Increment the counter
299		call WriteChar ;Write Character
300		cmp ecx, 20 ;Compare for end of row for each 20 positions
301		je NextLine
302		cmp ecx, 40
303		je NextLine
304		cmp ecx, 60
305		je NextLine
306		cmp ecx, 80
307		je NextLine
308		cmp ecx, 100
309		je NextLine
310		cmp ecx, 120
311		je NextLine
312		cmp ecx, 140
313		je NextLine
314		cmp ecx, 160
315		je NextLine
316		cmp ecx, 180
317		je NextLine
318		cmp ecx, 200
319		je NextLine
320		cmp ecx, 220
321		je NextLine
322		cmp ecx, 240
323		je NextLine
324		cmp ecx, 260
325		je NextLine
326		cmp ecx, 280
327		je NextLine
328		cmp ecx, 300
329		je NextLine
330		cmp ecx, 320
331		je NextLine
332		cmp ecx, 340
333		je NextLine
334		cmp ecx, 360
335		je NextLine
336		cmp ecx, 380
337		je NextLine
338		cmp ecx, 400
339		jne PrintLoop
340		jmp Print
341		NextLine:
342		call Crlf
343		jmp PrintLoop
344		Print:
345		call Crlf
346		mov edx,OFFSET MessageDirections
347		call WriteString ;Call Write String procdure ret Draw ENDP
348		;========================================================================= ;=========================================================================
349		TimerCount PROC
350		INVOKE GetTickCount
351		sub eax, startTime
352		mov divisor, 1000 ;milisecs div divisor
353		mov edx,OFFSET messageTime
354		call WriteString
355		mov timeTaken, eax
356		call WriteInt ;Call Write String procdure
357		ret TimerCount ENDP
358		;========================================================================= ;=========================================================================
359		END main