josh/ichigo
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

apply isoprojection in Sprite

Browse source
This commit is contained in:
Josh Deprez 2021-09-03 10:24:16 +10:00
parent 88ded18d50
commit 5699d70be6
2 changed files with 8 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
engine/sprite.go
View file

@ -21,8 +21,8 @@ func init() {
// Sprite combines an Actor with the ability to Draw from a single spritesheet. // Sprite combines an Actor with the ability to Draw from a single spritesheet.
type Sprite struct { type Sprite struct {
Actor Actor Actor Actor
FrameOffset image.Point DrawOffset image.Point
Hidden Hidden
Sheet Sheet Sheet Sheet
@ -56,9 +56,11 @@ func (s *Sprite) SetAnim(a *Anim) {
s.anim = a s.anim = a
} }
// Transform returns a translation by the FrameOffset. // Transform returns a translation by the DrawOffset and the iso-projected Pos.
func (s *Sprite) Transform(pt Transform) (tf Transform) { func (s *Sprite) Transform(pt Transform) (tf Transform) {
tf.Opts.GeoM.Translate(cfloat(s.Actor.Pos.XY().Add(s.FrameOffset))) tf.Opts.GeoM.Translate(cfloat(
s.Actor.Pos.IsoProject(pt.IsoProjection).Add(s.DrawOffset),
))
return tf.Concat(pt) return tf.Concat(pt)
} }

4
main.go
View file

@ -197,10 +197,10 @@ func level1() *engine.Scene {
Sprite: engine.Sprite{ Sprite: engine.Sprite{
Actor: engine.Actor{ Actor: engine.Actor{
CollisionDomain: "level_1", CollisionDomain: "level_1",
Pos: engine.Pt3(100, 100, 9), Pos: engine.Pt3(100, 100, 0),
Size: engine.Pt3(8, 16, 8), Size: engine.Pt3(8, 16, 8),
}, },
FrameOffset: image.Pt(-1, 0), DrawOffset: image.Pt(-1, 0),
Sheet: engine.Sheet{ Sheet: engine.Sheet{
AnimDefs: map[string]*engine.AnimDef{ AnimDefs: map[string]*engine.AnimDef{
"idle_left": {Steps: []engine.AnimStep{ "idle_left": {Steps: []engine.AnimStep{