func (t *TestSuite) TestSegmentCenter() {
segment := shapes.NewSegment(t.renderState.segmentProgram, 10, 15, 20, 20)
x, y := segment.Center()
t.Equal(float32(15), x)
t.Equal(float32(17.5), y)
size := segment.Bounds().Size()
w, h := size.X, size.Y
t.Equal(10, w)
t.Equal(5, h)
}
func newGround(x1, y1, x2, y2 float32) *ground {
ground := new(ground)
// Chipmunk body
ground.physicsBody = chipmunk.NewBodyStatic()
ground.physicsShape = chipmunk.NewSegment(
vect.Vect{vect.Float(x1), vect.Float(y1)},
vect.Vect{vect.Float(x2), vect.Float(y2)},
GroundRadius,
)
ground.physicsBody.AddShape(ground.physicsShape)
// OpenGL shape
ground.openglShape = shapes.NewSegment(x1, y1, x2, y2)
ground.openglShape.Color(color.White)
return ground
}
func (t *TestSuite) TestSegment() {
filename := "expected_line.png"
t.rlControl.drawFunc <- func() {
w, h := t.renderState.window.GetSize()
world := newWorld(w, h)
segment := shapes.NewSegment(t.renderState.segmentProgram, 81.5, -40, 238.5, 44)
// Color is yellow
segment.SetColor(color.RGBA{255, 0, 0, 255})
segment.AttachToWorld(world)
gl.Clear(gl.COLOR_BUFFER_BIT)
segment.Draw()
t.testDraw <- testlib.Screenshot(t.renderState.window)
t.renderState.window.SwapBuffers()
}
distance, exp, act, err := testlib.TestImage(filename, <-t.testDraw, imagetest.Center)
if err != nil {
panic(err)
}
t.True(distance < 0.0009, distanceError(distance, filename))
if t.Failed() {
saveExpAct(t.outputPath, "failed_"+filename, exp, act)
}
}