Added new tile graphics.

Added sprites for all textures.
Removed splash screen animation.

cmd/krampus19/game.go

@@ -136,15 +136,11 @@ func (g *game) loadSprites(names ...string) error {
 func (g *game) loadAssets() error {
 	log.Println("Loading textures...")
 	err := g.loadTextures(map[string]string{
-		"basic_tile.png":        "basic_tile",
+		"entity_brick.png":          "brick",
-		"sunken_brick_tile.png": "sunken_brick_tile",
+		"entity_main_character.png": "main_character",
-		"water_tile.png":        "water_tile",
 
-		"main_character.png":    "main_character",
+		"tile_lava_brick.png": "lava_brick",
-		"villain_character.png": "villain_character",
+		"tile_magma.png":      "magma",
-
-		"brick.png": "brick",
-		"crate.png": "crate",
 	})
 	if err != nil {
 		return err
@@ -166,10 +162,10 @@ func (g *game) loadAssets() error {
 	log.Printf("Loaded %d fonts.\n", g.ui.Fonts().Len())
 
 	log.Println("Loading sprites")
-	// err = g.loadSprites("dragon")
+	err = g.loadSprites("brick", "lava_brick", "magma", "main_character")
-	// if err != nil {
+	if err != nil {
-	// 	return err
+		return err
-	// }
+	}
 	log.Printf("Loaded %d sprites.\n", len(g.ctx.Sprites))
 	return nil
 }

cmd/krampus19/level.go

@@ -17,7 +17,6 @@ const (
 	entityTypeCharacter            = '@'
 	entityTypeVillain              = 'X'
 	entityTypeBrick                = 'B'
-	entityTypeCrate                = 'C'
 )
 
 func (e entityType) IsValid() bool {
@@ -26,7 +25,6 @@ func (e entityType) IsValid() bool {
 	case entityTypeCharacter:
 	case entityTypeVillain:
 	case entityTypeBrick:
-	case entityTypeCrate:
 	default:
 		return false
 	}
@@ -37,14 +35,14 @@ const (
 	tileInvalid tile = tile(0)
 	tileNothing      = '.'
 	tileBasic        = '#'
-	tileWater        = '~'
+	tileMagma        = '~'
 )
 
 func (t tile) IsValid() bool {
 	switch t {
 	case tileNothing:
 	case tileBasic:
-	case tileWater:
+	case tileMagma:
 	default:
 		return false
 	}

cmd/krampus19/playlevel.go

@@ -2,14 +2,12 @@ package main
 
 import (
 	"fmt"
-	"log"
 	"sort"
 	"time"
 
 	"opslag.de/schobers/allg5"
 	"opslag.de/schobers/geom"
 	"opslag.de/schobers/krampus19/alui"
-	"opslag.de/schobers/krampus19/gut"
 )
 
 type playLevel struct {
@@ -20,21 +18,12 @@ type playLevel struct {
 	menu     *alui.Menu
 	showMenu bool
 
-	name     string
+	name   string
-	offset   geom.PointF32
+	offset geom.PointF32
-	scale    float32
+	scale  float32
-	keysDown keyPressedState
 
-	level   level
+	state playLevelState
-	player  *entity
-	villain *entity
-	bricks  []*entity
-	sunken  []*entity
-	steps   int
-	tick    time.Duration
-	ani     gut.Animations
 }
-
 type keyPressedState map[allg5.Key]bool
 
 func (s keyPressedState) CountPressed(keys ...allg5.Key) int {
@@ -84,90 +73,6 @@ func (a *entityMoveAnimation) Animate(start, now time.Duration) bool {
 	return true
 }
 
-func (l *playLevel) idxToPos(i int) geom.PointF32 { return l.level.idxToPos(i).ToF32() }
-
-func (l *playLevel) isIdle() bool { return l.ani.Idle() }
-
-func findEntityAt(entities []*entity, pos geom.Point) *entity {
-	idx := findEntityIdx(entities, pos)
-	if idx == -1 {
-		return nil
-	}
-	return entities[idx]
-}
-
-func findEntityIdx(entities []*entity, pos geom.Point) int {
-	for i, e := range entities {
-		if e.pos == pos {
-			return i
-		}
-	}
-	return -1
-}
-
-func (l *playLevel) findEntityAt(pos geom.Point) *entity {
-	if l.player.pos == pos {
-		return l.player
-	}
-	brick := findEntityAt(l.bricks, pos)
-	if brick != nil {
-		return brick
-	}
-	return findEntityAt(l.sunken, pos)
-}
-
-func (l *playLevel) checkTile(pos geom.Point, check func(pos geom.Point, idx int, t tile) bool) bool {
-	return l.checkTileNotFound(pos, check, false)
-}
-
-func (l *playLevel) checkTileNotFound(pos geom.Point, check func(pos geom.Point, idx int, t tile) bool, notFound bool) bool {
-	idx := l.level.posToIdx(pos)
-	if idx == -1 {
-		return notFound
-	}
-	return check(pos, idx, l.level.tiles[idx])
-}
-
-func (l *playLevel) isSolidTile(pos geom.Point, idx int, t tile) bool {
-	switch t {
-	case tileBasic:
-		return true
-	case tileWater:
-		return findEntityAt(l.sunken, pos) != nil
-	}
-	return false
-}
-
-func (l *playLevel) wouldBrickSink(pos geom.Point, idx int, t tile) bool {
-	return t == tileWater && findEntityAt(l.sunken, pos) == nil
-}
-
-func (l *playLevel) isObstructed(pos geom.Point, idx int, t tile) bool {
-	if findEntityAt(l.bricks, pos) != nil {
-		return true // brick
-	}
-	switch l.level.tiles[idx] {
-	case tileWater:
-		return false
-	case tileBasic:
-		return false
-	}
-	return true
-}
-
-func (l *playLevel) canMove(from, dir geom.Point) bool {
-	to := from.Add(dir)
-	if !l.checkTile(to, l.isSolidTile) {
-		return false
-	}
-	brick := findEntityAt(l.bricks, to)
-	if brick != nil {
-		brickTo := to.Add(dir)
-		return !l.checkTileNotFound(brickTo, l.isObstructed, true)
-	}
-	return true
-}
-
 func (l *playLevel) Enter(ctx *Context) error {
 	l.ctx = ctx
 
@@ -176,20 +81,7 @@ func (l *playLevel) Enter(ctx *Context) error {
 	l.menu.Add("Quit to main menu", func() { l.ctx.Navigation.showMainMenu() })
 	l.menu.Add("Quit to desktop", func() { l.ctx.Navigation.quit() })
 
-	l.keysDown = keyPressedState{}
+	l.state.Init(l.ctx, l.name)
-	l.level = l.ctx.Levels[l.name]
-	l.bricks = nil
-	l.sunken = nil
-	for i, e := range l.level.entities {
-		switch e {
-		case entityTypeBrick:
-			l.bricks = append(l.bricks, newEntity(e, l.level.idxToPos(i)))
-		case entityTypeCharacter:
-			l.player = newEntity(e, l.level.idxToPos(i))
-		case entityTypeVillain:
-			l.villain = newEntity(e, l.level.idxToPos(i))
-		}
-	}
 	return nil
 }
 
@@ -201,78 +93,43 @@ func (l *playLevel) posToScreen(p geom.Point) geom.PointF32 {
 
 func (l *playLevel) posToScreenF32(p geom.PointF32) geom.PointF32 {
 	pos := p.Add2D(.5, .5)
-	pos = geom.PtF32(pos.X*148-pos.Y*46, pos.Y*82)
+	pos = geom.PtF32(pos.X*100-pos.Y*50, pos.Y*40)
-	pos = geom.PtF32(pos.X*l.scale, pos.Y*l.scale)
+	return pos.Mul(l.scale).Add(l.offset)
-	return pos.Add(l.offset)
 }
 
-// <-  168->
+// <-  150->
-//   <-128->
+//   <-100->
 //
 //   /----/|   ^  ^
-//  /    / /   |  72
+//  /    / |   |  40
-// /----/ /    92 v  ^
+// /----/  |  140 v  ^
-// |----|/     v     v 20
+// |    |  |   |     |
+// |    | /    |    100
+// |----|/     v     v
 //
-// Gap: 20
+// Center: 74,19
-// Center: 84,46
+// Offset between horizontal tiles: 100,0
-// Offset between horizontal tiles: 148,0
+// Offset between vertical tiles: -25,40
-// Offset between vertical tiles: -46,82
 
 func (l *playLevel) Layout(ctx *alui.Context, bounds geom.RectangleF32) {
 	l.scale = bounds.Dy() / 1080
 
-	tilesCenter := geom.PtF32(.5*float32(l.level.width), .5*float32(l.level.height))
+	level := l.state.Level()
-	tilesCenter = geom.PtF32(tilesCenter.X*148-tilesCenter.Y*46, tilesCenter.Y*82)
+	tilesCenter := geom.PtF32(.5*float32(level.width), .5*float32(level.height))
+	tilesCenter = geom.PtF32(tilesCenter.X*100-tilesCenter.Y*25, tilesCenter.Y*40)
 	tilesCenter = geom.PtF32(tilesCenter.X*l.scale, tilesCenter.Y*l.scale)
 	center := bounds.Center()
 	l.offset = geom.PtF32(center.X-tilesCenter.X, center.Y-tilesCenter.Y)
 
-	l.ani.Animate(l.ctx.Tick)
+	l.state.Tick(l.ctx.Tick)
-}
-
-func (l *playLevel) tryPlayerMove(dir geom.Point, key allg5.Key) {
-	if !l.isIdle() {
-		return
-	}
-
-	to := l.player.pos.Add(dir)
-	if !l.canMove(l.player.pos, dir) {
-		log.Printf("Move is not allowed (tried out move to %s after key '%s' was pressed)", to, gut.KeyToString(key))
-		return
-	}
-
-	l.steps++
-	log.Printf("Moving player to %s", to)
-	l.ani.StartFn(l.ctx.Tick, newEntityMoveAnimation(l.player, to), func() {
-		log.Printf("Player movement finished")
-		if l.keysDown[key] && l.keysDown.CountPressed(l.ctx.Settings.Controls.MovementKeys()...) == 1 {
-			log.Printf("Key %s is still down, moving further", gut.KeyToString(key))
-			l.tryPlayerMove(dir, key)
-		}
-	})
-
-	if brick := findEntityAt(l.bricks, to); brick != nil {
-		log.Printf("Pushing brick at %s", to)
-		brickTo := to.Add(dir)
-		l.ani.StartFn(l.ctx.Tick, newEntityMoveAnimation(brick, brickTo), func() {
-			log.Printf("Brick movement finished")
-			if l.checkTile(brickTo, l.wouldBrickSink) {
-				log.Printf("Sinking brick at %s", brickTo)
-				idx := findEntityIdx(l.bricks, brickTo)
-				l.bricks = append(l.bricks[:idx], l.bricks[idx+1:]...)
-				l.sunken = append(l.sunken, brick)
-			}
-		})
-	}
 }
 
 func (l *playLevel) Handle(e allg5.Event) {
 	switch e := e.(type) {
 	case *allg5.KeyDownEvent:
-		l.keysDown[e.KeyCode] = true
+		l.state.PressKey(e.KeyCode)
 	case *allg5.KeyUpEvent:
-		l.keysDown[e.KeyCode] = false
+		l.state.ReleaseKey(e.KeyCode)
 	}
 
 	if l.showMenu {
@@ -294,50 +151,66 @@ func (l *playLevel) Handle(e allg5.Event) {
 			l.showMenu = true
 			l.menu.Activate(0)
 		case l.ctx.Settings.Controls.MoveUp:
-			l.tryPlayerMove(geom.Pt(0, -1), e.KeyCode)
+			l.state.TryPlayerMove(geom.Pt(0, -1), e.KeyCode)
 		case l.ctx.Settings.Controls.MoveRight:
-			l.tryPlayerMove(geom.Pt(1, 0), e.KeyCode)
+			l.state.TryPlayerMove(geom.Pt(1, 0), e.KeyCode)
 		case l.ctx.Settings.Controls.MoveDown:
-			l.tryPlayerMove(geom.Pt(0, 1), e.KeyCode)
+			l.state.TryPlayerMove(geom.Pt(0, 1), e.KeyCode)
 		case l.ctx.Settings.Controls.MoveLeft:
-			l.tryPlayerMove(geom.Pt(-1, 0), e.KeyCode)
+			l.state.TryPlayerMove(geom.Pt(-1, 0), e.KeyCode)
 		}
 	}
 }
 
-func (l *playLevel) Render(ctx *alui.Context, bounds geom.RectangleF32) {
+func (l *playLevel) drawSpritePart(name, partName string, pos geom.PointF32) {
-	basicTile := l.ctx.Textures["basic_tile"]
+	l.drawSpritePartOffset(name, partName, pos, geom.PointF32{})
-	waterTile := l.ctx.Textures["water_tile"]
+}
-	sunkenBrickTile := l.ctx.Textures["sunken_brick_tile"]
 
-	opts := allg5.DrawOptions{Center: true, Scale: allg5.NewUniformScale(l.scale * (168 / float32(basicTile.Width())))}
+func (l *playLevel) drawSpritePartOffset(name, partName string, pos, offset geom.PointF32) {
-	level := l.level
+	sprite, ok := l.ctx.Sprites[name]
+	if !ok {
+		return
+	}
+	text, ok := l.ctx.Textures[sprite.texture]
+	if !ok {
+		return
+	}
+	partText, ok := text.Subs[partName]
+	if !ok {
+		return
+	}
+	part := sprite.FindPartByName(partName)
+	scale := l.scale
+	if part.scale != 0 {
+		scale *= 1. / part.scale
+	}
+	anchor := part.sub.Min.Sub(part.anchor).ToF32().Mul(scale)
+	scrPos := l.posToScreenF32(pos).Add(anchor).Add(offset.Mul(100 * l.scale))
+	left, top := scrPos.X, scrPos.Y
+	partText.DrawOptions(left, top, allg5.DrawOptions{Scale: allg5.NewUniformScale(scale)})
+}
+
+func (l *playLevel) Render(ctx *alui.Context, bounds geom.RectangleF32) {
+	level := l.state.level
 	for i, t := range level.tiles {
 		pos := geom.Pt(i%level.width, i/level.width)
-		scrPos := l.posToScreen(pos)
 		switch t {
 		case tileBasic:
-			basicTile.DrawOptions(scrPos.X, scrPos.Y, opts)
+			if l.state.IsNextToMagma(pos) {
-		case tileWater:
+				l.drawSpritePart("lava_brick", "magma", pos.ToF32())
-			scrPos := l.posToScreenF32(pos.ToF32().Add2D(0, .2*l.scale))
-			if findEntityAt(l.sunken, pos) == nil {
-				waterTile.DrawOptions(scrPos.X, scrPos.Y, opts)
 			} else {
-				sunkenBrickTile.DrawOptions(scrPos.X, scrPos.Y, opts)
+				l.drawSpritePart("lava_brick", "lava_brick", pos.ToF32())
+			}
+		case tileMagma:
+			l.drawSpritePart("magma", "magma", pos.ToF32())
+			if l.state.IsFilledUp(pos) {
+				l.drawSpritePartOffset("brick", "brick", pos.ToF32(), geom.PtF32(0, .8))
+				l.drawSpritePart("magma", "sunken_overlay", pos.ToF32())
 			}
 		}
 	}
 
-	character := l.ctx.Textures["main_character"]
+	entities := l.state.Entities()
-	villain := l.ctx.Textures["villain_character"]
-	brick := l.ctx.Textures["brick"]
-	crate := l.ctx.Textures["crate"]
-
-	var entities []*entity
-	entities = append(entities, l.player)
-	entities = append(entities, l.villain)
-	entities = append(entities, l.bricks...)
-
 	sort.Slice(entities, func(i, j int) bool {
 		if entities[i].scr.Y == entities[j].scr.Y {
 			return entities[i].scr.X < entities[j].scr.X
@@ -346,27 +219,16 @@ func (l *playLevel) Render(ctx *alui.Context, bounds geom.RectangleF32) {
 	})
 
 	for _, e := range entities {
-		scrPos := l.posToScreenF32(e.scr)
 		switch e.typ {
 		case entityTypeCharacter:
-			scrPos := l.posToScreenF32(e.scr.Add2D(-.2*l.scale, -.9*l.scale))
+			l.drawSpritePart("main_character", "main_character", e.scr)
-			character.DrawOptions(scrPos.X, scrPos.Y, opts)
-		case entityTypeVillain:
-			scrPos := l.posToScreenF32(e.scr.Add2D(-.2*l.scale, -.9*l.scale))
-			villain.DrawOptions(scrPos.X, scrPos.Y, opts)
 		case entityTypeBrick:
-			if findEntityAt(l.bricks, e.pos) == nil {
+			l.drawSpritePart("brick", "brick", e.scr)
-				break
-			}
-			scrPos := l.posToScreenF32(e.scr.Add2D(-.2*l.scale, -.7*l.scale))
-			brick.DrawOptions(scrPos.X, scrPos.Y, opts)
-		case entityTypeCrate:
-			crate.DrawOptions(scrPos.X, scrPos.Y, opts)
 		}
 	}
 
 	font := ctx.Fonts.Get("default")
-	steps := fmt.Sprintf("STEPS: %d", l.steps)
+	steps := fmt.Sprintf("STEPS: %d", l.state.Steps())
 	ctx.Fonts.DrawAlignFont(font, bounds.Min.X, 24, bounds.Max.X, ctx.Palette.Text, allg5.AlignCenter, steps)
 
 	if l.showMenu {

cmd/krampus19/playlevelstate.go

@@ -0,0 +1,197 @@
+package main
+
+import (
+	"log"
+	"time"
+
+	"opslag.de/schobers/allg5"
+	"opslag.de/schobers/geom"
+	"opslag.de/schobers/krampus19/gut"
+)
+
+func findEntityAt(entities []*entity, pos geom.Point) *entity {
+	idx := findEntityIdx(entities, pos)
+	if idx == -1 {
+		return nil
+	}
+	return entities[idx]
+}
+
+func findEntityIdx(entities []*entity, pos geom.Point) int {
+	for i, e := range entities {
+		if e.pos == pos {
+			return i
+		}
+	}
+	return -1
+}
+
+type playLevelState struct {
+	ctx *Context
+
+	level    level
+	player   *entity
+	villain  *entity
+	bricks   []*entity
+	sunken   []*entity
+	steps    int
+	tick     time.Duration
+	ani      gut.Animations
+	keysDown keyPressedState
+}
+
+func (s *playLevelState) Entities() []*entity {
+	var entities []*entity
+	entities = append(entities, s.player)
+	entities = append(entities, s.villain)
+	entities = append(entities, s.bricks...)
+	return entities
+}
+
+func (s *playLevelState) IsFilledUp(pos geom.Point) bool {
+	return findEntityAt(s.sunken, pos) != nil
+}
+
+func (s *playLevelState) IsNextToMagma(pos geom.Point) bool {
+	return s.checkTile(pos.Add2D(1, 0), s.isMagma) ||
+		s.checkTile(pos.Add2D(-1, 0), s.isMagma) ||
+		s.checkTile(pos.Add2D(0, -1), s.isMagma) ||
+		s.checkTile(pos.Add2D(0, 1), s.isMagma)
+}
+
+func (s *playLevelState) Init(ctx *Context, levelName string) {
+	s.ctx = ctx
+	s.level = ctx.Levels[levelName]
+	s.bricks = nil
+	s.sunken = nil
+	for i, e := range s.level.entities {
+		switch e {
+		case entityTypeBrick:
+			s.bricks = append(s.bricks, newEntity(e, s.level.idxToPos(i)))
+		case entityTypeCharacter:
+			s.player = newEntity(e, s.level.idxToPos(i))
+		case entityTypeVillain:
+			s.villain = newEntity(e, s.level.idxToPos(i))
+		}
+	}
+	s.keysDown = keyPressedState{}
+}
+
+func (s *playLevelState) Level() level { return s.level }
+
+func (s *playLevelState) PressKey(key allg5.Key) {
+	s.keysDown[key] = true
+}
+
+func (s *playLevelState) ReleaseKey(key allg5.Key) {
+	s.keysDown[key] = false
+}
+
+func (s *playLevelState) Steps() int { return s.steps }
+
+func (s *playLevelState) Tick(now time.Duration) {
+	s.ani.Animate(now)
+}
+
+func (s *playLevelState) TryPlayerMove(dir geom.Point, key allg5.Key) {
+	if !s.isIdle() {
+		return
+	}
+
+	to := s.player.pos.Add(dir)
+	if !s.canMove(s.player.pos, dir) {
+		log.Printf("Move is not allowed (tried out move to %s after key '%s' was pressed)", to, gut.KeyToString(key))
+		return
+	}
+
+	s.steps++
+	log.Printf("Moving player to %s", to)
+	s.ani.StartFn(s.ctx.Tick, newEntityMoveAnimation(s.player, to), func() {
+		log.Printf("Player movement finished")
+		if s.keysDown[key] && s.keysDown.CountPressed(s.ctx.Settings.Controls.MovementKeys()...) == 1 {
+			log.Printf("Key %s is still down, moving further", gut.KeyToString(key))
+			s.TryPlayerMove(dir, key)
+		}
+	})
+
+	if brick := findEntityAt(s.bricks, to); brick != nil {
+		log.Printf("Pushing brick at %s", to)
+		brickTo := to.Add(dir)
+		s.ani.StartFn(s.ctx.Tick, newEntityMoveAnimation(brick, brickTo), func() {
+			log.Printf("Brick movement finished")
+			if s.checkTile(brickTo, s.wouldBrickSink) {
+				log.Printf("Sinking brick at %s", brickTo)
+				idx := findEntityIdx(s.bricks, brickTo)
+				s.bricks = append(s.bricks[:idx], s.bricks[idx+1:]...)
+				s.sunken = append(s.sunken, brick)
+			}
+		})
+	}
+}
+
+func (s *playLevelState) canMove(from, dir geom.Point) bool {
+	to := from.Add(dir)
+	if !s.checkTile(to, s.isSolidTile) {
+		return false
+	}
+	brick := findEntityAt(s.bricks, to)
+	if brick != nil {
+		brickTo := to.Add(dir)
+		return !s.checkTileNotFound(brickTo, s.isObstructed, true)
+	}
+	return true
+}
+
+func (s *playLevelState) checkTile(pos geom.Point, check func(pos geom.Point, idx int, t tile) bool) bool {
+	return s.checkTileNotFound(pos, check, false)
+}
+
+func (s *playLevelState) checkTileNotFound(pos geom.Point, check func(pos geom.Point, idx int, t tile) bool, notFound bool) bool {
+	idx := s.level.posToIdx(pos)
+	if idx == -1 {
+		return notFound
+	}
+	return check(pos, idx, s.level.tiles[idx])
+}
+
+func (s *playLevelState) findEntityAt(pos geom.Point) *entity {
+	if s.player.pos == pos {
+		return s.player
+	}
+	brick := findEntityAt(s.bricks, pos)
+	if brick != nil {
+		return brick
+	}
+	return findEntityAt(s.sunken, pos)
+}
+
+func (s *playLevelState) isIdle() bool { return s.ani.Idle() }
+
+func (s *playLevelState) isObstructed(pos geom.Point, idx int, t tile) bool {
+	if findEntityAt(s.bricks, pos) != nil {
+		return true // brick
+	}
+	switch s.level.tiles[idx] {
+	case tileMagma:
+		return false
+	case tileBasic:
+		return false
+	}
+	return true
+}
+
+func (s *playLevelState) isMagma(pos geom.Point, idx int, t tile) bool { return t == tileMagma }
+
+func (s *playLevelState) isSolidTile(pos geom.Point, idx int, t tile) bool {
+	switch t {
+	case tileBasic:
+		return true
+	case tileMagma:
+		return findEntityAt(s.sunken, pos) != nil
+	}
+	return false
+}
+
+func (s *playLevelState) wouldBrickSink(pos geom.Point, idx int, t tile) bool {
+	return t == tileMagma && findEntityAt(s.sunken, pos) == nil
+}

cmd/krampus19/res/levels/level1.txt

@@ -1,11 +1,11 @@
 level:
 ._._._._._._._._._._
-._._#_#_#_._._._._._
+._#_#_#_#_._._._._._
-._._#_._#B._._._._._
+._#_#_._#B._._._._._
-._._#_#_#_._._._._._
+._#_#_#_#_._._._._._
-._._#_._#B._._._._._
+._#_#_._#B._._._._._
 ._#@#_#_#_~_~_#_#X._
-._._._._~_~_#_._._._
+._#_#_~_~_~_#_#_#_._
-._._._._#_#_#_._._._
+._#_#_~_#_#_#_#_#_._
 ._._._._._._._._._._
 :level

cmd/krampus19/res/sprites/brick.txt

@@ -0,0 +1,11 @@
+sprite:
+texture: brick
+
+part:
+name: brick
+sub_texture: 0,0,1020,960
+anchor: 510,780
+scale: 6
+:part
+
+:sprite

cmd/krampus19/res/sprites/dragon.txt

@@ -1,28 +0,0 @@
-sprite:
-texture: dragon
-
-part:
-name: body
-sub_texture: 0,0,2107,1284
-anchor: 1065,594
-:part
-
-part:
-name: foot
-sub_texture: 42,1345,529,856
-anchor: 386,1283
-:part
-
-part:
-name: upper_wing
-sub_texture: 2112,39,1080,651
-anchor: 2413,644
-:part
-
-part:
-name: lower_wing
-sub_texture: 2170,764,1030,736
-anchor: 2658,799
-:part
-
-:sprite

cmd/krampus19/res/sprites/lava_brick.txt

@@ -0,0 +1,18 @@
+sprite:
+texture: lava_brick
+
+part:
+name: lava_brick
+sub_texture: 0,0,1020,960
+anchor: 510,180
+scale: 6
+:part
+
+part:
+name: magma
+sub_texture: 0,960,1020,960
+anchor: 510,1140
+scale: 6
+:part
+
+:sprite

cmd/krampus19/res/sprites/magma.txt

@@ -0,0 +1,18 @@
+sprite:
+texture: magma
+
+part:
+name: magma
+sub_texture: 0,0,1020,960
+anchor: 510,180
+scale: 6
+:part
+
+part:
+name: sunken_overlay
+sub_texture: 0,960,1020,960
+anchor: 510,1140
+scale: 6
+:part
+
+:sprite

cmd/krampus19/res/sprites/main_character.txt

@@ -0,0 +1,11 @@
+sprite:
+texture: main_character
+
+part:
+name: main_character
+sub_texture: 0,0,200,400
+anchor: 100,350
+scale: 2
+:part
+
+:sprite

cmd/krampus19/splash.go

@@ -1,11 +1,8 @@
 package main
 
 import (
-	"math"
 	"time"
 
-	"opslag.de/schobers/allg5"
-
 	"opslag.de/schobers/geom"
 	"opslag.de/schobers/krampus19/alui"
 )
@@ -20,26 +17,5 @@ type splash struct {
 }
 
 func (s *splash) Render(ctx *alui.Context, bounds geom.RectangleF32) {
-	var dragon = s.ctx.Sprites["dragon"]
+	s.atEnd = true
-
-	var texture = s.ctx.Textures[dragon.texture]
-	var body = texture.Subs["body"]
-	var upperWing = texture.Subs["upper_wing"]
-	var lowerWing = texture.Subs["lower_wing"]
-	var foot = texture.Subs["foot"]
-
-	scale := bounds.Dy() / 1600
-
-	var repeat = 2 * time.Second / time.Millisecond
-	var tick = float64((s.ctx.Tick / time.Millisecond) % repeat)
-	flap := .5*float32(math.Cos(tick*2*math.Pi/float64(repeat))) + .5 // [0..1]
-	upperFlap := flap*.75 + .25                                       // [.25..1]
-	lowerFlap := flap*.5 + .5                                         // [.5..1]
-
-	body.DrawOptions(0, 0, allg5.DrawOptions{Scale: allg5.NewUniformScale(scale)})
-	foot.DrawOptions(750*scale, 500*scale, allg5.DrawOptions{Scale: allg5.NewUniformScale(scale)})
-
-	var upperWingOffset = float32(upperWing.Height()) * scale * (1 - flap) * .8
-	upperWing.DrawOptions(750*scale, -100*scale+upperWingOffset, allg5.DrawOptions{Scale: allg5.NewScale(scale, scale*upperFlap)})
-	lowerWing.DrawOptions(750*scale, -100*scale+upperWingOffset*.95, allg5.DrawOptions{Scale: allg5.NewScale(scale, scale*lowerFlap)})
 }

cmd/krampus19/sprite.go

@@ -14,10 +14,20 @@ type sprite struct {
 	parts   []spritePart
 }
 
+func (s sprite) FindPartByName(name string) spritePart {
+	for _, part := range s.parts {
+		if part.name == name {
+			return part
+		}
+	}
+	return spritePart{}
+}
+
 type spritePart struct {
 	name   string
 	sub    geom.Rectangle
 	anchor geom.Point
+	scale  float32
 }
 
 func loadSpriteAsset(r io.Reader) (sprite, error) {
@@ -79,7 +89,7 @@ func (c *spriteContext) parsePart(p *lineParser) parseLineFn {
 		for i, s := range s {
 			res[i], err = strconv.Atoi(s)
 			if err != nil {
-				panic("string does not represent an integer")
+				panic("string does not represent an integer number")
 			}
 		}
 		return res
@@ -88,9 +98,17 @@ func (c *spriteContext) parsePart(p *lineParser) parseLineFn {
 		coords := strings.Split(strings.TrimSpace(s), ",")
 		return mustAtois(coords...)
 	}
+	mustAtof := func(s string) float32 {
+		f, err := strconv.ParseFloat(strings.TrimSpace(s), 32)
+		if err != nil {
+			panic("string does not represent an floating point number")
+		}
+		return float32(f)
+	}
 	const nameTag = "name:"
 	const subTextureTag = "sub_texture:"
 	const anchorTag = "anchor:"
+	const scaleTag = "scale:"
 	const partEndTag = ":part"
 	if p.skipSpaceEOF() {
 		return p.emitErr(errUnexpectedEnd)
@@ -117,6 +135,10 @@ func (c *spriteContext) parsePart(p *lineParser) parseLineFn {
 		c.part.anchor = geom.Pt(coords[0], coords[1])
 		p.next()
 		return c.parsePart
+	case strings.HasPrefix(line, scaleTag):
+		c.part.scale = mustAtof(line[len(scaleTag):])
+		p.next()
+		return c.parsePart
 	case line == partEndTag:
 		c.sprite.parts = append(c.sprite.parts, *c.part)
 		p.next()