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https://git.sr.ht/~rabbits/macintosh_cookbook
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124 lines
4.0 KiB
ObjectPascal
124 lines
4.0 KiB
ObjectPascal
unit Graf3DStructures;
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interface
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uses
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FixMath, Graf3D, Graf3DScene, Graf3DPrimitives;
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procedure SetStairs3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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procedure SetDoorway3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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procedure SetDoorwayWall3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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procedure SetLedge3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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procedure SetParticles3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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procedure SetGrd3D (var shape: Shape3D; x, y, z, w, h, d: Longint);
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implementation
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procedure SetStairs3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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var
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hq: Longint;
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begin
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hq := h div 4;
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AddRec3D(shape, x, y - h + hq div 2 * 5, z + d - hq * 2, w, h div 4);
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AddRec3D(shape, x, y - h + hq div 2 * 7, z + d - hq * 3, w, h div 4);
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AddRec3D(shape, x, y - h + hq div 2 * 9, z + d - hq * 4, w, h div 4);
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AddRec3D(shape, x, y - h + hq div 2 * 11, z + d - hq * 5, w, h div 4);
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AddEdge3D(shape, 4, 7);
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AddEdge3D(shape, 1, 6);
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AddEdge3D(shape, 8, 11);
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AddEdge3D(shape, 5, 10);
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AddEdge3D(shape, 12, 15);
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AddEdge3D(shape, 9, 14);
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{last step}
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AddVertice3D(shape, x - w div 2, y + h div 2, z - d div 2);
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AddVertice3D(shape, x + w div 2, y + h div 2, z - d div 2);
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AddEdge3D(shape, 16, 17);
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AddEdge3D(shape, 13, 18);
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{sides}
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AddVertice3D(shape, x - w div 2, y - h div 2, z - d div 2);
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AddVertice3D(shape, x + w div 2, y - h div 2, z - d div 2);
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AddEdge3D(shape, 17, 19);
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AddEdge3D(shape, 18, 20);
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AddEdge3D(shape, 19, 3);
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AddEdge3D(shape, 20, 2);
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end;
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procedure SetDoorway3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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begin
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{ frame }
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AddVertice3D(shape, x - w div 2, y - h div 2, z);
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AddVertice3D(shape, x - w div 2, y + h div 4, z);
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AddVertice3D(shape, x, y + h div 2, z);
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AddVertice3D(shape, x + w div 2, y + h div 4, z);
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AddVertice3D(shape, x + w div 2, y - h div 2, z);
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AddEdge3D(shape, 1, 2);
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AddEdge3D(shape, 2, 3);
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AddEdge3D(shape, 3, 4);
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AddEdge3D(shape, 4, 5);
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AddEdge3D(shape, 1, 5);
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end;
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procedure SetDoorwayWall3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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begin
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{ frame }
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AddVertice3D(shape, x - w div 2, y - h, z);
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AddVertice3D(shape, x - w div 2, y + h div 4, z);
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AddVertice3D(shape, x, y + h div 2, z);
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AddVertice3D(shape, x + w div 2, y + h div 4, z);
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AddVertice3D(shape, x + w div 2, y - h, z);
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AddVertice3D(shape, x + w * 2, y - h div 2, z);{6}
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AddVertice3D(shape, x + w * 2, y + h, z);{7}
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AddVertice3D(shape, x - w * 2, y + h, z);{8}
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AddVertice3D(shape, x - w * 2, y - h div 2, z);{9}
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AddFace3D(shape, 4, 5, 6);
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AddFace3D(shape, 4, 6, 7);
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AddFace3D(shape, 3, 4, 7);
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AddFace3D(shape, 3, 7, 8);
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AddFace3D(shape, 2, 3, 8);
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AddFace3D(shape, 2, 8, 9);
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AddFace3D(shape, 1, 2, 9);
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end;
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procedure SetLedge3D (var shape: Shape3D; x, y, z, w, h, d: Longint);
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begin
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AddRec3D(shape, x, y, z, w, h div 4 * 4);
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AddRec3D(shape, x, y - 120, z + 20, w, h div 4 * 3);
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AddEdge3D(shape, 2, 5);
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AddEdge3D(shape, 3, 8);
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AddFace3D(shape, 2, 3, 5);
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AddFace3D(shape, 3, 5, 8);
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end;
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procedure SetParticles3D (var shape: Shape3D; x, y, z, w, h, d: Fixed);
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var
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i: Integer;
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rx, ry, rz: Fixed;
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begin
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for i := 1 to 16 do
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begin
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rx := FracMul(Fix2Frac(Random), w);
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ry := FracMul(Fix2Frac(Random), h);
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rz := FracMul(Fix2Frac(Random), z);
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AddVertice3D(shape, x + rx, y + ry, z + rz);
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AddVertice3D(shape, x + rx, y + ry + 10, z + rz);
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AddEdge3D(shape, i * 2 - 1, i * 2);
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end;
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end;
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procedure SetGrd3D (var shape: Shape3D; x, y, z, w, h, d: Longint);
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var
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i: Integer;
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begin
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for i := 1 to d do
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begin
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AddVertice3D(shape, x - w div 2, y + h div 2 - h div d * (i - 1), z);
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AddVertice3D(shape, x + w div 2, y + h div 2 - h div d * (i - 1), z);
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AddEdge3D(shape, i * 4 - 3, i * 4 - 2);
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AddVertice3D(shape, x + w div 2 - w div d * (i - 1), y - h div 2, z);
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AddVertice3D(shape, x + w div 2 - w div d * (i - 1), y + h div 2, z);
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AddEdge3D(shape, i * 4 - 1, i * 4);
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end;
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AddRec3D(shape, x, y, z, w, h div 4 * 4);
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end;
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end. |