github.com/sandwich-go/boost@v1.3.29/geom/int_test.go (about)

     1  // Code generated by tools. DO NOT EDIT.
     2  package geom
     3  
     4  import (
     5  	"fmt"
     6  	. "github.com/smartystreets/goconvey/convey"
     7  	"testing"
     8  )
     9  
    10  func TestRectangleInt_SnakeRange(t *testing.T) {
    11  	HelixRectRangeFromCenterAndMarginInt(PtInt(2, 2), 2, func(p PointInt) bool {
    12  		t.Log(p.X, p.Y)
    13  		return true
    14  	})
    15  
    16  	Convey("test intersection with line", t, func() {
    17  		x := PtInt8(1, 0)
    18  		y := PtInt8(1, 4)
    19  		z := x.Add(y)
    20  		So(z.X, ShouldEqual, 2)
    21  		So(z.Y, ShouldEqual, 4)
    22  		So(z.String(), ShouldEqual, "(2,4)")
    23  		So(z.Sub(x).Eq(y), ShouldBeTrue)
    24  		q := y.Mul(3)
    25  		So(q.X, ShouldEqual, y.X*3)
    26  		So(q.Y, ShouldEqual, y.Y*3)
    27  		So(q.Div(3).Eq(y), ShouldBeTrue)
    28  		var r1, r2, r3, r4 int8 = 1, 0, 5, 5
    29  		r := RectInt8(r1, r2, r3, r4)
    30  		So(x.In(r), ShouldBeTrue)
    31  		So(r.String(), ShouldEqual, fmt.Sprintf("(%d,%d)-(%d,%d)", r1, r2, r3, r4))
    32  		var minX, maxX, minY, maxY int8
    33  		var reset = func() { minX, maxX, minY, maxY = 5, 0, 5, 0 }
    34  		var f = func(p PointInt8) bool {
    35  			if p.X < minX {
    36  				minX = p.X
    37  			}
    38  			if p.Y < minY {
    39  				minY = p.Y
    40  			}
    41  			if p.X > maxX {
    42  				maxX = p.X
    43  			}
    44  			if p.Y > maxY {
    45  				maxY = p.Y
    46  			}
    47  			return true
    48  		}
    49  		reset()
    50  		r.RangePoints(f)
    51  		So(minX, ShouldEqual, r1)
    52  		So(minY, ShouldEqual, r2)
    53  		So(maxX, ShouldEqual, r3)
    54  		So(maxY, ShouldEqual, r4)
    55  		reset()
    56  		r.RangePointsMinClosedMaxOpen(f)
    57  		So(minX, ShouldEqual, r1+1)
    58  		So(minY, ShouldEqual, r2+1)
    59  		So(maxX, ShouldEqual, r3)
    60  		So(maxY, ShouldEqual, r4)
    61  		reset()
    62  		r.RangePointsMinMaxClosed(f)
    63  		So(minX, ShouldEqual, r1+1)
    64  		So(minY, ShouldEqual, r2+1)
    65  		So(maxX, ShouldEqual, r3-1)
    66  		So(maxY, ShouldEqual, r4-1)
    67  		reset()
    68  		r.RangePointsMinOpenMaxClosed(f)
    69  		So(minX, ShouldEqual, r1)
    70  		So(minY, ShouldEqual, r2)
    71  		So(maxX, ShouldEqual, r3-1)
    72  		So(maxY, ShouldEqual, r4-1)
    73  		So(r.Dx(), ShouldEqual, r3-r1)
    74  		So(r.Dy(), ShouldEqual, r4-r2)
    75  		So(r.Size().Eq(PtInt8(r3-r1, r4-r2)), ShouldBeTrue)
    76  		rc := PtInt8(1, 1)
    77  		rr := r.Add(rc)
    78  		So(rr.Max.X, ShouldEqual, r.Max.X+rc.X)
    79  		So(rr.Max.Y, ShouldEqual, r.Max.Y+rc.Y)
    80  		So(rr.Min.X, ShouldEqual, r.Min.X+rc.X)
    81  		So(rr.Min.Y, ShouldEqual, r.Min.Y+rc.Y)
    82  		So(rr.Sub(rc).Eq(r), ShouldBeTrue)
    83  		ir := r.Inset(1)
    84  		So(ir.String(), ShouldEqual, fmt.Sprintf("(%d,%d)-(%d,%d)", r1+1, r2+1, r3-1, r4-1))
    85  		So(r.Intersect(ir).Eq(ir), ShouldBeTrue)
    86  		So(r.Union(r.Inset(1)).Eq(r), ShouldBeTrue)
    87  		So(r.Empty(), ShouldBeFalse)
    88  		So(ZRInt8.Empty(), ShouldBeTrue)
    89  		So(r.Overlaps(ir), ShouldBeTrue)
    90  		So(r.Bounds().Eq(r), ShouldBeTrue)
    91  		So(ir.In(r), ShouldBeTrue)
    92  		So(ir.Expanded(rc).Eq(r), ShouldBeTrue)
    93  		So(ir.ExpandedByMargin(1).Eq(r), ShouldBeTrue)
    94  
    95  		rect := RectInt(0, 0, 3, 3)
    96  		So(rect.IntersectionWithLine(PtInt(1, 0), PtInt(1, 4)), ShouldBeTrue)  // should be true
    97  		So(rect.IntersectionWithLine(PtInt(1, 0), PtInt(1, 3)), ShouldBeTrue)  // should be true
    98  		So(rect.IntersectionWithLine(PtInt(1, 0), PtInt(1, 2)), ShouldBeTrue)  // should be true
    99  		So(rect.IntersectionWithLine(PtInt(1, 0), PtInt(1, 1)), ShouldBeTrue)  // should be true
   100  		So(rect.IntersectionWithLine(PtInt(2, 0), PtInt(2, 2)), ShouldBeTrue)  // should be true
   101  		So(rect.IntersectionWithLine(PtInt(0, 2), PtInt(1, 2)), ShouldBeTrue)  // should be true
   102  		So(rect.IntersectionWithLine(PtInt(0, 1), PtInt(3, 1)), ShouldBeTrue)  // should be true
   103  		So(rect.IntersectionWithLine(PtInt(0, 0), PtInt(0, 1)), ShouldBeFalse) // should be false
   104  		So(rect.IntersectionWithLine(PtInt(0, 0), PtInt(0, 2)), ShouldBeFalse) // should be false
   105  		So(rect.IntersectionWithLine(PtInt(0, 0), PtInt(0, 3)), ShouldBeFalse) // should be false
   106  		So(rect.IntersectionWithLine(PtInt(0, 0), PtInt(0, 4)), ShouldBeFalse) // should be false
   107  		So(rect.IntersectionWithLine(PtInt(0, 0), PtInt(1, 0)), ShouldBeFalse) // should be false
   108  		So(rect.IntersectionWithLine(PtInt(0, 0), PtInt(2, 0)), ShouldBeFalse) // should be false
   109  		So(rect.IntersectionWithLine(PtInt(1, 4), PtInt(2, 4)), ShouldBeFalse) // should be false
   110  		So(rect.IntersectionWithLine(PtInt(0, 3), PtInt(3, 3)), ShouldBeFalse) // should be false
   111  		So(rect.IntersectionWithLine(PtInt(1, 3), PtInt(2, 4)), ShouldBeFalse) // should be false
   112  	})
   113  }