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Improved pyramid

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This commit is contained in:
neauoire 2020-05-12 18:48:05 +09:00
parent f74923d9ff
commit 867f563262
3 changed files with 20 additions and 25 deletions
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18
examples/3d.scene.pas
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@ -15,7 +15,7 @@ program ExampleScene;
isDown: Boolean;
{scene}
scene: Scene3D;
box1, box2, box3, box4: Shape3D;
box1, wed1, pyr1: Shape3D;
{>>}
procedure ClearScreen;
@ -94,19 +94,13 @@ begin
{scene}
SetScene3D(scene);
SetBox3D(box1, 0, 0, 0, 100, 100, 100);
SetBox3D(box2, 0, 0, 0, 100, 100, 100);
SetBox3D(box3, 0, 0, 0, 100, 100, 100);
SetBox3D(box4, 0, 0, 0, 100, 100, 100);
SetBox3D(box1, -100, 0, 0, 100, 100, 100);
SetWedge3D(wed1, 0, 0, 0, 100, 100, 100, 50);
SetPyramid3D(pyr1, 100, 0, 0, 100, 100, 100, 50, 50);
AddShape3D(scene, @box1);
AddShape3D(scene, @box2);
AddShape3D(scene, @box3);
AddShape3D(scene, @box4);
MoveShape3D(@box2, 100, 0, 0);
MoveShape3D(@box3, 0, 100, 0);
MoveShape3D(@box4, 0, 0, 100);
AddShape3D(scene, @wed1);
AddShape3D(scene, @pyr1);
Redraw;
MainLoop;

9
units/Graf2D.pas
View File

@ -23,21 +23,22 @@ program ExampleRotate;
point.y := Long2Fix(y);
end;
function Distance2D (a, b: Point2D): Fixed;
function DistancePoint2D (a, b: Point2D): Fixed;
var
val: Fixed;
begin
val := FracMul((b.x - a.x), (b.x - a.x)) + FracMul((b.y - a.y), (b.y - a.y));
Distance2D := Frac2Fix(FracSqrt(val));
DistancePoint2D := Frac2Fix(FracSqrt(val));
end;
procedure RotatePoint2D (var target, origin: Point2D; angle: Fixed);
var
radians, cos, sin, x, y, r, pi: Fixed;
begin
pi := FixRatio(22, 7);
{ pi := FixRatio(355, 113); }
pi := 205887;
radians := FixMul(angle, FixDiv(pi, 180));
r := Distance2D(target, origin);
r := DistancePoint2D(target, origin);
target.x := origin.x + FixMul(r, FracCos(radians));
target.y := origin.y + FixMul(r, FracSin(radians));
end;

18
units/Graf3DPrimitives.pas
View File

@ -19,7 +19,7 @@ interface
end;
Shape3D = record
origin: Point3D;
origin: Point3D;
length, verticesLength, facesLength: Integer;
vertices: array[1..9] of Point3D;
edges: array[1..13] of Link3D;
@ -43,7 +43,7 @@ interface
procedure SetFc3D (var fc3D: Face3D; a, b, c: Point3DPtr);
procedure SetBox3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
procedure SetWedge3D (var shape: Shape3D; x, y, z, w, h, d, a: Fixed);
procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
procedure DrawLink3D (link: Link3D);
procedure DrawShape3D (shape: Shape3DPtr);
procedure DrawScene3D (scene: Scene3D);
@ -69,9 +69,9 @@ implementation
i: Integer;
begin
for i := 1 to shape^.verticesLength do
begin
begin
{ DO IT }
end;
end;
end;
procedure SetLk3D (var lk3D: Link3D; a, b: Point3DPtr);
@ -94,7 +94,7 @@ implementation
procedure SetBox3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
begin
SetPt3D(shape.origin, x,y,z);
SetPt3D(shape.origin, x, y, z);
SetPt3D(shape.vertices[1], Long2Fix(x + w div 2), Long2Fix(y + h div 2), Long2Fix(z + d div 2));
SetPt3D(shape.vertices[2], Long2Fix(x + w div 2), Long2Fix(y + h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[3], Long2Fix(x - w div 2), Long2Fix(y + h div 2), Long2Fix(z - d div 2));
@ -124,7 +124,7 @@ implementation
procedure SetWedge3D (var shape: Shape3D; x, y, z, w, h, d, a: Fixed);
begin
SetPt3D(shape.origin, x,y,z);
SetPt3D(shape.origin, x, y, z);
SetPt3D(shape.vertices[1], Long2Fix(x + a), Long2Fix(y + h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[2], Long2Fix(x + a), Long2Fix(y + h div 2), Long2Fix(z + d div 2));
SetPt3D(shape.vertices[3], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z + d div 2));
@ -147,10 +147,10 @@ implementation
shape.length := 9;
end;
procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
procedure SetPyramid3D (var shape: Shape3D; x, y, z, w, h, d, ax, az: Fixed);
begin
SetPt3D(shape.origin, x,y,z);
SetPt3D(shape.vertices[1], Long2Fix(x), Long2Fix(y + h div 2), Long2Fix(z));
SetPt3D(shape.origin, x, y, z);
SetPt3D(shape.vertices[1], Long2Fix(x + ax), Long2Fix(y + h div 2), Long2Fix(z + az));
SetPt3D(shape.vertices[2], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z + d div 2));
SetPt3D(shape.vertices[3], Long2Fix(x + w div 2), Long2Fix(y - h div 2), Long2Fix(z - d div 2));
SetPt3D(shape.vertices[4], Long2Fix(x - w div 2), Long2Fix(y - h div 2), Long2Fix(z - d div 2));