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| 1 | +{ @author: Sylvain Maltais (support@gladir.com) |
| 2 | + @created: 2024 |
| 3 | + @website(https://www.gladir.com/7iles) |
| 4 | + @abstract(Target: Turbo Pascal 7, Free Pascal 3.2) |
| 5 | +} |
| 6 | + |
| 7 | +Program ASTEROIDS; |
| 8 | + |
| 9 | +Uses {$IFDEF FPC} |
| 10 | + Crt,PtcGraph,PtcCrt,PtcMouse |
| 11 | + {$ELSE} |
| 12 | + Crt,Graph |
| 13 | + {$ENDIF}; |
| 14 | + |
| 15 | +Const |
| 16 | + TopY=20; |
| 17 | + |
| 18 | +Var |
| 19 | + Lives,Score:LongInt; |
| 20 | + Finish,North,South,East,West:Boolean; |
| 21 | + ShipAngle:Real; |
| 22 | + ShipX,ShipY:Integer; |
| 23 | + BallX:Array[0..19]of Integer; |
| 24 | + BallY:Array[0..19]of Integer; |
| 25 | + BallDelta:Array[0..19]of Integer; |
| 26 | + BallAngle:Array[0..19]of Real; |
| 27 | + AsteroidX:Array[0..19]of Integer; |
| 28 | + AsteroidY:Array[0..19]of Integer; |
| 29 | + AsteroidDelta:Array[0..19]of Integer; |
| 30 | + AsteroidAngle:Array[0..19]of Real; |
| 31 | + AsteroidRadius:Array[0..19]of Integer; |
| 32 | + |
| 33 | +Function LongToStr(X:LongInt):String; |
| 34 | +Var |
| 35 | + S:String; |
| 36 | +Begin |
| 37 | + Str(X,S); |
| 38 | + LongToStr:=S; |
| 39 | +End; |
| 40 | + |
| 41 | +Procedure ClrKbd;Begin |
| 42 | + While(Keypressed)do ReadKey; |
| 43 | +End; |
| 44 | + |
| 45 | +Procedure InitScr; |
| 46 | +Var |
| 47 | + Driver,Mode:Integer; |
| 48 | + ErrCode:Integer; |
| 49 | +Begin |
| 50 | + {$IFDEF FPC} |
| 51 | + Driver:=VGA; |
| 52 | + Mode:=VGAHi; |
| 53 | + {$ELSE} |
| 54 | + Driver:=Detect; |
| 55 | + Mode:=VGAHi; |
| 56 | + {$ENDIF} |
| 57 | + InitGraph(Driver,Mode,''); |
| 58 | + ErrCode:=GraphResult; |
| 59 | + If ErrCode=grOk Then Begin |
| 60 | + SetColor(White); |
| 61 | + SetLineStyle(0,0,1); |
| 62 | + End |
| 63 | + Else |
| 64 | + Begin |
| 65 | + WriteLn('Erreur graphique : ',GraphErrorMsg(ErrCode)); |
| 66 | + Halt; |
| 67 | + End; |
| 68 | +End; |
| 69 | + |
| 70 | +Function FindY(X,Y:Integer):Integer;Begin |
| 71 | + FindY:=ShipY+Round(Y*Sin(ShipAngle)+X*Cos(ShipAngle)); |
| 72 | +End; |
| 73 | + |
| 74 | +Function FindX(X,Y:Integer):Integer;Begin |
| 75 | + FindX:=ShipX+Round(Y*Cos(ShipAngle)-X*Sin(ShipAngle)); |
| 76 | +End; |
| 77 | + |
| 78 | +Procedure Ship(Show:Boolean); |
| 79 | +Var |
| 80 | + X:Array[0..9]of Integer; |
| 81 | +Begin |
| 82 | + FillChar(X,SizeOf(X),0); |
| 83 | + X[0]:=FindX(0,12); |
| 84 | + X[1]:=FindY(0,12); |
| 85 | + X[2]:=FindX(-6,0); |
| 86 | + X[3]:=FindY(-6,0); |
| 87 | + X[4]:=FindX(6,0); |
| 88 | + X[5]:=FindY(6,0); |
| 89 | + X[6]:=X[0]; |
| 90 | + X[7]:=X[1]; |
| 91 | + If(Show)Then Begin |
| 92 | + SetColor(LightGreen); |
| 93 | + SetFillStyle(SolidFill,Green); |
| 94 | + End |
| 95 | + Else |
| 96 | + Begin |
| 97 | + SetColor(Black); |
| 98 | + SetFillStyle(SolidFill,Black); |
| 99 | + End; |
| 100 | + FillPoly(4,X); |
| 101 | +End; |
| 102 | + |
| 103 | +Function FindBallY(Ball,X,Y:Integer):Integer;Begin |
| 104 | + FindBallY:=BallY[Ball]+Round(Y*Sin(BallAngle[Ball])+X*Cos(BallAngle[Ball])); |
| 105 | +End; |
| 106 | + |
| 107 | +Function FindBallX(Ball,X,Y:Integer):Integer;Begin |
| 108 | + FindBallX:=BallX[Ball]+Round(Y*Cos(BallAngle[Ball])-X*Sin(BallAngle[Ball])); |
| 109 | +End; |
| 110 | + |
| 111 | +Function FindAsteroidY(Asteroid,X,Y:Integer):Integer;Begin |
| 112 | + FindAsteroidY:=AsteroidY[Asteroid]+Round(Y*Sin(AsteroidAngle[Asteroid])+ |
| 113 | + X*Cos(AsteroidAngle[Asteroid])); |
| 114 | +End; |
| 115 | + |
| 116 | +Function FindAsteroidX(Asteroid,X,Y:Integer):Integer;Begin |
| 117 | + FindAsteroidX:=AsteroidX[Asteroid]+Round(Y*Cos(AsteroidAngle[Asteroid])- |
| 118 | + X*Sin(AsteroidAngle[Asteroid])); |
| 119 | +End; |
| 120 | + |
| 121 | +Function Collision(x1,y1,h1,w1,x2,y2,h2,w2:Integer):Boolean; |
| 122 | +Var |
| 123 | + CX1,CX2,CY1,CY2,Dist,R1,R2:Real; |
| 124 | +Begin |
| 125 | + CX1:=X1+W1/2.0; |
| 126 | + CY1:=Y1+H1/2.0; |
| 127 | + CX2:=X2+W2/2.0; |
| 128 | + CY2:=Y2+H2/2.0; |
| 129 | + R1:=H1/2.0; |
| 130 | + R2:=H2/2.0; |
| 131 | + Dist:=Sqrt(Sqr(cx2-cx1)+Sqr(cy2-cy1)); |
| 132 | + Collision:=Dist<R1+R2; |
| 133 | +End; |
| 134 | + |
| 135 | +Function AsteroidCollision(Asteroid,X,Y:Integer):Boolean;Begin |
| 136 | + AsteroidCollision:=Collision(X-1,Y-1,3,3, |
| 137 | + AsteroidX[Asteroid]-AsteroidRadius[Asteroid], |
| 138 | + AsteroidY[Asteroid]-AsteroidRadius[Asteroid], |
| 139 | + AsteroidRadius[Asteroid] shl 1, |
| 140 | + AsteroidRadius[Asteroid] shl 1); |
| 141 | +End; |
| 142 | + |
| 143 | +Function ShipCollision:Boolean; |
| 144 | +Var |
| 145 | + I:Integer; |
| 146 | +Begin |
| 147 | + ShipCollision:=False; |
| 148 | + For I:=0 to 19 do Begin |
| 149 | + If Collision(ShipX-6,ShipY-6,12,12, |
| 150 | + AsteroidX[I]-AsteroidRadius[I], |
| 151 | + AsteroidY[I]-AsteroidRadius[I], |
| 152 | + AsteroidRadius[I] shl 1, |
| 153 | + AsteroidRadius[I] shl 1)Then Begin |
| 154 | + ShipCollision:=True; |
| 155 | + Exit; |
| 156 | + End; |
| 157 | + End; |
| 158 | +End; |
| 159 | + |
| 160 | +Procedure AddScore(X:Integer);Begin |
| 161 | + SetColor(Black); |
| 162 | + OutTextXY(20*8,0,'Pointage : '+LongToStr(Score)); |
| 163 | + Score:=Score+X; |
| 164 | + SetColor(Yellow); |
| 165 | + OutTextXY(20*8,0,'Pointage : '+LongToStr(Score)); |
| 166 | +End; |
| 167 | + |
| 168 | +Procedure ShowLives; |
| 169 | +Var |
| 170 | + I:Integer; |
| 171 | +Begin |
| 172 | + SetFillStyle(SolidFill,Black); |
| 173 | + Bar(0,0,639,19); |
| 174 | + For I:=1 to Lives do Begin |
| 175 | + ShipAngle:=(PI/2)*3; |
| 176 | + ShipX:=I*20; |
| 177 | + ShipY:=10; |
| 178 | + Ship(True); |
| 179 | + End; |
| 180 | +End; |
| 181 | + |
| 182 | +Procedure ResetBoard;Begin |
| 183 | + SetColor(Black); |
| 184 | + SetFillStyle(SolidFill,Black); |
| 185 | + Bar(0,TopY,639,479); |
| 186 | + FillChar(BallX,SizeOf(BallX),0); |
| 187 | + FillChar(BallY,SizeOf(BallY),0); |
| 188 | + FillChar(BallDelta,SizeOf(BallDelta),0); |
| 189 | + FillChar(BallAngle,SizeOf(BallAngle),0); |
| 190 | + FillChar(AsteroidX,SizeOf(AsteroidX),0); |
| 191 | + FillChar(AsteroidY,SizeOf(AsteroidY),0); |
| 192 | + FillChar(AsteroidDelta,SizeOf(AsteroidDelta),0); |
| 193 | + FillChar(AsteroidAngle,SizeOf(AsteroidAngle),0); |
| 194 | + FillChar(AsteroidRadius,SizeOf(AsteroidRadius),0); |
| 195 | + AddScore(0); |
| 196 | + ShipX:=320; |
| 197 | + ShipY:=240; |
| 198 | + ShipAngle:=(PI/2)*3; |
| 199 | + Ship(True); |
| 200 | +End; |
| 201 | + |
| 202 | +Var |
| 203 | + I,J:Integer; |
| 204 | + |
| 205 | +BEGIN |
| 206 | + InitScr; |
| 207 | + OutTextXY(0,8,' úú úú úúú '); |
| 208 | + OutTextXY(0,16,' úú ú úú úú '); |
| 209 | + OutTextXY(0,24,' ú úú úú úú '); |
| 210 | + OutTextXY(0,32,' ú úú úúúú ú úúúúúú úúúúú úú úúú úúúúú úúú úúú úú úúúú ú '); |
| 211 | + OutTextXY(0,40,' ú úú úú úú úú úú úú úú úú úú úú úú úú úúú úú úú '); |
| 212 | + OutTextXY(0,48,' úúúúúú úúú úú úúúúúúú úú úú úú úú úú úú úúú '); |
| 213 | + OutTextXY(0,56,'ú úú úúú úú úú úú úú úú úú úú úú úúú '); |
| 214 | + OutTextXY(0,64,'ú úúúú úú úú ú úú ú úú úú úú úú úú úú úú úú '); |
| 215 | + OutTextXY(0,72,'úú úúúú úúúú úúú úúúúú úúúú úúúúú úúúú úúúú úúú úúúú '); |
| 216 | + ShipX:=100; |
| 217 | + ShipY:=300; |
| 218 | + ShipAngle:=(PI/180)*350; |
| 219 | + Ship(True); |
| 220 | + BallX[0]:=FindX(0,12); |
| 221 | + BallY[0]:=FindY(0,12); |
| 222 | + BallDelta[0]:=12; |
| 223 | + BallAngle[0]:=ShipAngle; |
| 224 | + For I:=0 to 5 do Begin |
| 225 | + Inc(BallDelta[0],5); |
| 226 | + BallX[0]:=FindBallX(0,0,BallDelta[0]); |
| 227 | + BallY[0]:=FindBallY(0,0,BallDelta[0]); |
| 228 | + PutPixel(BallX[0],BallY[0],LightRed); |
| 229 | + End; |
| 230 | + SetColor(White); |
| 231 | + Circle(400,250,25); |
| 232 | + OutTextXY(0,460,'Presse une touche pour jouer...'); |
| 233 | + ReadKey; |
| 234 | + ClearDevice; |
| 235 | + Finish:=False; |
| 236 | + Score:=0; |
| 237 | + Lives:=3; |
| 238 | + ShowLives; |
| 239 | + ResetBoard; |
| 240 | + Repeat |
| 241 | + Repeat |
| 242 | + For I:=0 to 19 do Begin |
| 243 | + If AsteroidDelta[I]<>0 Then Begin |
| 244 | + SetColor(Black); |
| 245 | + Circle(AsteroidX[I],AsteroidY[I],AsteroidRadius[I]); |
| 246 | + Inc(AsteroidDelta[I],1); |
| 247 | + AsteroidX[I]:=FindAsteroidX(I,0,AsteroidDelta[I]); |
| 248 | + AsteroidY[I]:=FindAsteroidY(I,0,AsteroidDelta[I]); |
| 249 | + If(AsteroidX[I]<0)or(AsteroidY[I]<0)or(AsteroidX[I]>639)or(AsteroidY[I]>479)Then Begin |
| 250 | + AsteroidX[I]:=0; |
| 251 | + AsteroidY[I]:=0; |
| 252 | + AsteroidDelta[I]:=0; |
| 253 | + SetColor(Black); |
| 254 | + Circle(AsteroidX[I],AsteroidY[I],AsteroidRadius[I]); |
| 255 | + End |
| 256 | + Else |
| 257 | + Begin |
| 258 | + SetColor(White); |
| 259 | + Circle(AsteroidX[I],AsteroidY[I],AsteroidRadius[I]); |
| 260 | + End; |
| 261 | + End; |
| 262 | + End; |
| 263 | + For I:=0 to 19 do Begin |
| 264 | + If AsteroidDelta[I]=0 Then Begin |
| 265 | + AsteroidAngle[I]:=Random*(PI*2); |
| 266 | + AsteroidRadius[I]:=10+Random(3)*5; |
| 267 | + North:=False;South:=False;East:=False;West:=False; |
| 268 | + If AsteroidAngle[I]<PI Then North:=True |
| 269 | + Else South:=True; |
| 270 | + If(AsteroidAngle[I]>=0.0)and(AsteroidAngle[I]<=PI/2)Then East:=True Else |
| 271 | + If(AsteroidAngle[I]>=2*PI/(3/4))and(AsteroidAngle[I]<=(PI/2))Then East:=True; |
| 272 | + If Not(East)Then West:=True; |
| 273 | + If(North)Then Begin |
| 274 | + AsteroidX[I]:=Random(640); |
| 275 | + AsteroidY[I]:=479; |
| 276 | + End |
| 277 | + Else |
| 278 | + If(East)Then Begin |
| 279 | + AsteroidX[I]:=0; |
| 280 | + AsteroidY[I]:=Random(480); |
| 281 | + End |
| 282 | + Else |
| 283 | + If(West)Then Begin |
| 284 | + AsteroidX[I]:=639; |
| 285 | + AsteroidY[I]:=Random(480); |
| 286 | + End |
| 287 | + Else |
| 288 | + Begin { South } |
| 289 | + AsteroidX[I]:=Random(640); |
| 290 | + AsteroidY[I]:=TopY; |
| 291 | + End; |
| 292 | + AsteroidDelta[I]:=5; |
| 293 | + Break; |
| 294 | + End; |
| 295 | + End; |
| 296 | + For I:=0 to 19 do Begin |
| 297 | + If BallDelta[I]<>0 Then Begin |
| 298 | + PutPixel(BallX[I],BallY[I],Black); |
| 299 | + Inc(BallDelta[I],5); |
| 300 | + BallX[I]:=FindBallX(I,0,BallDelta[I]); |
| 301 | + BallY[I]:=FindBallY(I,0,BallDelta[I]); |
| 302 | + For J:=0 to 19 do Begin |
| 303 | + If AsteroidCollision(J,BallX[I],BallY[I])Then Begin |
| 304 | + SetColor(Black); |
| 305 | + Circle(AsteroidX[J],AsteroidY[J],AsteroidRadius[J]); |
| 306 | + AsteroidX[J]:=0; |
| 307 | + AsteroidY[J]:=0; |
| 308 | + AsteroidDelta[J]:=0; |
| 309 | + AddScore(10); |
| 310 | + End; |
| 311 | + End; |
| 312 | + If(BallX[I]<=0)or(BallY[I]<=TopY)or(BallX[I]>639)or(BallY[I]>479)Then Begin |
| 313 | + BallX[I]:=0; |
| 314 | + BallY[I]:=0; |
| 315 | + BallDelta[I]:=0; |
| 316 | + End |
| 317 | + Else |
| 318 | + Begin |
| 319 | + PutPixel(BallX[I],BallY[I],LightRed); |
| 320 | + End; |
| 321 | + End; |
| 322 | + End; |
| 323 | + If(ShipCollision)Then Begin |
| 324 | + If Lives>0 Then Begin |
| 325 | + Dec(Lives); |
| 326 | + ShowLives; |
| 327 | + SetColor(LightRed); |
| 328 | + OutTextXY(300,220,'Vous avez t touch !'); |
| 329 | + ReadKey; |
| 330 | + SetColor(Black); |
| 331 | + OutTextXY(300,220,'Vous avez t touch !'); |
| 332 | + SetColor(White); |
| 333 | + ResetBoard; |
| 334 | + Break; |
| 335 | + End |
| 336 | + Else |
| 337 | + Begin |
| 338 | + ClrKbd; |
| 339 | + SetColor(LightRed); |
| 340 | + OutTextXY(300,220,'Vous avez perdu !'); |
| 341 | + ReadKey; |
| 342 | + Finish:=True; |
| 343 | + Break; |
| 344 | + End; |
| 345 | + End; |
| 346 | + Delay(200); |
| 347 | + Until Keypressed; |
| 348 | + Case ReadKey of |
| 349 | + #0:Case ReadKey of |
| 350 | + #75:Begin |
| 351 | + Ship(False); |
| 352 | + ShipAngle:=ShipAngle-(PI/180)*20; |
| 353 | + Ship(True); |
| 354 | + End; |
| 355 | + #77:Begin |
| 356 | + Ship(False); |
| 357 | + ShipAngle:=ShipAngle+(PI/180)*20; |
| 358 | + Ship(True); |
| 359 | + End; |
| 360 | + End; |
| 361 | + #27:Finish:=True; |
| 362 | + #32:Begin |
| 363 | + For I:=0 to 19 do Begin |
| 364 | + If BallDelta[I]=0 Then Begin |
| 365 | + BallX[I]:=FindX(0,12); |
| 366 | + BallY[I]:=FindY(0,12); |
| 367 | + BallDelta[I]:=12; |
| 368 | + BallAngle[I]:=ShipAngle; |
| 369 | + Break; |
| 370 | + End; |
| 371 | + End; |
| 372 | + End; |
| 373 | + End; |
| 374 | + ClrKbd; |
| 375 | + Until Finish; |
| 376 | +END. |
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