Method screenPoint

common/level.go:213–225

screenPoint returns the screen point of the passed in map point

(mapPt engo.Point)

// screenPoint returns the screen point of the passed in map point
func (l *Level) screenPoint(mapPt engo.Point) engo.Point {
	switch l.Orientation {
	case orth:
		mapPt.Multiply(engo.Point{X: float32(l.TileWidth), Y: float32(l.TileHeight)})
		return mapPt
	case iso:
		return engo.Point{
			X: (mapPt.X - mapPt.Y) * float32(l.TileWidth) / 2,
			Y: (mapPt.X + mapPt.Y) * float32(l.TileHeight) / 2,
		}
	}
	return engo.Point{X: 0, Y: 0}
}

type mapPoint struct {
	X, Y int