Golang Triangle.Dy Examples

Example #1

File: main.go Project: asimshankar/triangles

func moveTriangle(t *spec.Triangle) {
	t.Dy = t.Dy - gravity
	t.X = t.X + t.Dx*timeBetweenPaints
	t.Y = t.Y + t.Dy*timeBetweenPaints
	if t.Y <= -1 {
		t.Dy = -1 * t.Dy
		t.Y = -1
	} else if maxY := 1 - triangleCenterHeight; t.Y >= maxY {
		t.Dy = -1 * t.Dy
		t.Y = maxY
	}
}