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Infomagic - Games of Daze (Summer 1995) (Disc 1 of 2).iso
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view.prj
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1993-03-06
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eat
Color := RandColor;
SetColor(Color);
SetFillStyle(Random(CloseDotFill)+1, Color);
Bar3D(Random(MaxWidth), Random(MaxHeight),
Random(MaxWidth), Random(MaxHeight), 0, TopOff);
until KeyPressed;
WaitToGo;
end; { RandBarPlay }
procedure ArcPlay;
{ Draw random arcs on the screen }
var
MaxRadius : word;
EndAngle : word;
ArcInfo : ArcCoordsType;
begin
MainWindow('Arc / GetArcCoords demonstration');
StatusLine('Esc aborts or press a key');
MaxRadius := MaxY div 10;
repeat
SetColor(RandColor);
EndAngle := Random(360);
SetLineStyle(SolidLn, 0, NormWidth);
Arc(Random(MaxX), Random(MaxY), Random(EndAngle), EndAngle, Random(MaxRadius));
GetArcCoords(ArcInfo);
with ArcInfo do
begin
Line(X, Y, XStart, YStart);
Line(X, Y, Xend, Yend);
end;
until KeyPressed;
WaitToGo;
end; { ArcPlay }
procedure PutPixelPlay;
{ Demonstrate the PutPixel and GetPixel commands }
const
Seed = 1962; { A seed for the random number generator }
NumPts = 2000; { The number of pixels plotted }
Esc = #27;
var
I : word;
X, Y, Color : word;
XMax, YMax : integer;
ViewInfo : ViewPortType;
begin
MainWindow('PutPixel / GetPixel demonstration');
StatusLine('Esc aborts or press a key...');
GetViewSettings(ViewInfo);
with ViewInfo do
begin
XMax := (x2-x1-1);
YMax := (y2-y1-1);
end;
while not KeyPressed do
begin
{ Plot random pixels }
RandSeed := Seed;
I := 0;
while (not KeyPressed) and (I < NumPts) do
begin
Inc(I);
PutPixel(Random(XMax)+1, Random(YMax)+1, RandColor);
end;
{ Erase pixels }
RandSeed := Seed;
I := 0;
while (not KeyPressed) and (I < NumPts) do
begin
Inc(I);
X := Random(XMax)+1;
Y := Random(YMax)+1;
Color := GetPixel(X, Y);
if Color = RandColor then
PutPixel(X, Y, 0);
end;
end;
WaitToGo;
end; { PutPixelPlay }
procedure PutImagePlay;
{ Demonstrate the GetImage and PutImage commands }
const
r = 20;
StartX = 100;
StartY = 50;
var
CurPort : ViewPortType;
procedure MoveSaucer(var X, Y : integer; Width, Height : integer);
var
Step : integer;
begin
Step := Random(2*r);
if Odd(Step) then
Step := -Step;
X := X + Step;
Step := Random(r);
if Odd(Step) then
Step := -Step;
Y := Y + Step;
{ Make saucer bounce off viewport walls }
with CurPort do
begin
if (x1 + X + Width - 1 > x2) then
X := x2-x1 - Width + 1
else
if (X < 0) then
X := 0;
if (y1 + Y + Height - 1 > y2) then
Y := y2-y1 - Height + 1
else
if (Y < 0) then
Y := 0;
end;
end; { MoveSaucer }
var
Pausetime : word;
Saucer : pointer;
X, Y : integer;
ulx, uly : word;
lrx, lry : word;
Size : word;
I : word;
begin
ClearDevice;
FullPort;
{ PaintScreen }
ClearDevice;
MainWindow('GetImage / PutImage Demonstration');
StatusLine('Esc aborts or press a key...');
GetViewSettings(CurPort);
{ DrawSaucer }
Ellipse(StartX, StartY, 0, 360, r, (r div 3)+2);
Ellipse(StartX, StartY-4, 190, 357, r, r div 3);
Line(StartX+7, StartY-6, StartX+10, StartY-12);
Circle(StartX+10, StartY-12, 2);
Line(StartX-7, StartY-6, StartX-10, StartY-12);
Circle(StartX-10, StartY-12, 2);
SetFillStyle(SolidFill, MaxColor);
FloodFill(StartX+1, StartY+4, GetColor);
{ ReadSaucerImage }
ulx := StartX-(r+1);
uly := StartY-14;
lrx := StartX+(r+1);
lry := StartY+(r div 3)+3;
Size := ImageSize(ulx, uly, lrx, lry);
GetMem(Saucer, Size);
GetImage(ulx, uly, lrx, lry, Saucer^);
{ PutImage(ulx, uly, Saucer^, XORput); { erase image }
{ Plot some "stars" }
for I := 1 to 1000 do
PutPixel(Random(MaxX), Random(MaxY), RandColor);
X := MaxX div 2;
Y := MaxY div 2;
PauseTime := 70;
{ Move the saucer around }
repeat
{ PutImage(X, Y, Saucer^, XORput); { draw image }
Delay(PauseTime);
{ PutImage(X, Y, Saucer^, XORput); { erase image }
MoveSaucer(X, Y, lrx - ulx + 1, lry - uly + 1); { width/height }
until KeyPressed;
FreeMem(Saucer, size);
WaitToGo;
end; { PutImagePlay }
procedure PolyPlay;
{ Draw random polygons with random fill styles on the screen }
const
MaxPts = 5;
type
PolygonType = array[1..MaxPts] of PointType;
var
Poly : PolygonType;
I, Color : word;
begin
MainWindow('FillPoly demonstration');
StatusLine('Esc aborts or press a key...');
repeat
Color := RandColor;
SetFillStyle(Random(11)+1, Color);
SetColor(Color);
for I := 1 to MaxPts do
with Poly[I] do
begin
X := Random(MaxX);
Y := Random(MaxY);
end;
FillPoly(MaxPts, Poly);
until KeyPressed;
WaitToGo;
end; { PolyPlay }
procedure FillStylePlay;
{ Display all of the predefined fill styles available }
var
Style : word;
Width : word;
Height : word;
X, Y : word;
I, J : word;
ViewInfo : ViewPortType;
procedure DrawBox(X, Y : word);
begin
SetFillStyle(Style, MaxColor);
with ViewInfo do
Bar(X, Y, X+Width, Y+Height);
Rectangle(X, Y, X+Width, Y+Height);
OutTextXY(X+(Width div 2), Y+Height+4, Int2Str(Style));
Inc(Style);
end; { DrawBox }
begin
MainWindow('Pre-defined fill styles');
GetViewSettings(ViewInfo);
with ViewInfo do
begin
Width := 2 * ((x2+1) div 13);
Height := 2 * ((y2-10) div 10);
end;
X := Width div 2;
Y := Height div 2;
Style := 0;
for J := 1 to 3 do
begin
for I := 1 to 4 do
begin
DrawBox(X, Y);
Inc(X, (Width div 2) * 3);
end;
X := Width div 2;
Inc(Y, (Height div 2) * 3);
end;
SetTextJustify(LeftText, TopText);
WaitToGo;
end; { FillStylePlay }
procedure FillPatternPlay;
{ Display some user defined fill patterns }
const
Patterns : array[0..11] of FillPatternType = (
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