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graphics for demo game

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This commit is contained in:
Zsolt Tasnadi
2026-05-25 19:55:18 +02:00
parent df7219677e
commit f0b86871f6
10 changed files with 115 additions and 29 deletions
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4
domain/character.cat.go
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@@ -12,7 +12,7 @@ func defineCat(g *p.Game) {
Sprite: "spr/cat",
Speed: 40,
SpeechColor: color.RGBA{200, 200, 255, 255},
W: 18,
H: 14,
W: 34,
H: 20,
})
}

4
domain/character.player.go
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@@ -12,7 +12,7 @@ func definePlayer(g *p.Game) {
Sprite: "spr/player",
Speed: 80,
SpeechColor: color.RGBA{255, 230, 160, 255},
W: 14,
H: 28,
W: 28,
H: 62,
})
}

8
domain/scene.bedroom.go
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@@ -8,7 +8,7 @@ func defineBedroom(g *p.Game) {
Background: "bg/bedroom",
Music: "mus/wakeup",
Actors: []p.SceneActor{
{CharacterName: "player", At: p.Point{X: 160, Y: 120}},
{CharacterName: "player", At: p.Point{X: 160, Y: 145}},
},
Hotspots: []p.Hotspot{
{
@@ -29,7 +29,7 @@ func defineBedroom(g *p.Game) {
OnTake: p.If(p.Flag(FlagKeyTaken),
p.Say("player", "Már elvittem."),
p.Seq(
p.Walk("player", p.Point{X: 130, Y: 120}),
p.Walk("player", p.Point{X: 130, Y: 145}),
p.Give("key"),
p.SetFlag(FlagKeyTaken),
p.Say("player", "Pont jól jöhet."),
@@ -38,7 +38,7 @@ func defineBedroom(g *p.Game) {
OnUse: p.If(p.Flag(FlagKeyTaken),
p.Say("player", "Már elvittem a kulcsot."),
p.Seq(
p.Walk("player", p.Point{X: 130, Y: 120}),
p.Walk("player", p.Point{X: 130, Y: 145}),
p.Give("key"),
p.SetFlag(FlagKeyTaken),
p.Say("player", "Megvan a kulcs."),
@@ -51,7 +51,7 @@ func defineBedroom(g *p.Game) {
Label: "ajtó",
OnLook: p.Say("player", "Az ajtó a konyhába vezet."),
OnUse: p.Seq(
p.Walk("player", p.Point{X: 260, Y: 130}),
p.Walk("player", p.Point{X: 260, Y: 145}),
p.GoTo("kitchen"),
),
},

18
domain/scene.kitchen.go
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@@ -8,8 +8,8 @@ func defineKitchen(g *p.Game) {
Background: "bg/kitchen",
Music: "mus/calm",
Actors: []p.SceneActor{
{CharacterName: "player", At: p.Point{X: 60, Y: 130}},
{CharacterName: "cat", At: p.Point{X: 210, Y: 132}},
{CharacterName: "player", At: p.Point{X: 60, Y: 145}},
{CharacterName: "cat", At: p.Point{X: 215, Y: 142}},
},
Hotspots: []p.Hotspot{
{
@@ -21,7 +21,7 @@ func defineKitchen(g *p.Game) {
p.Say("player", "Már nyitva van."),
p.If(p.HasItem("key"),
p.Seq(
p.Walk("player", p.Point{X: 70, Y: 130}),
p.Walk("player", p.Point{X: 70, Y: 145}),
p.Say("player", "Klikk."),
p.SetFlag(FlagCupboardOpen),
p.Give("beans"),
@@ -32,7 +32,7 @@ func defineKitchen(g *p.Game) {
),
OnUseWith: map[string]p.Action{
"key": p.Seq(
p.Walk("player", p.Point{X: 70, Y: 130}),
p.Walk("player", p.Point{X: 70, Y: 145}),
p.Say("player", "Klikk."),
p.SetFlag(FlagCupboardOpen),
p.Give("beans"),
@@ -48,7 +48,7 @@ func defineKitchen(g *p.Game) {
OnTake: p.If(p.Flag(FlagMugTaken),
p.Say("player", "Tiszta már mind elfogyott."),
p.Seq(
p.Walk("player", p.Point{X: 125, Y: 130}),
p.Walk("player", p.Point{X: 125, Y: 145}),
p.Give("mug"),
p.SetFlag(FlagMugTaken),
p.Say("player", "Egy bögre, kérem."),
@@ -57,7 +57,7 @@ func defineKitchen(g *p.Game) {
OnUse: p.If(p.Flag(FlagMugTaken),
p.Say("player", "Már elvettem egyet."),
p.Seq(
p.Walk("player", p.Point{X: 125, Y: 130}),
p.Walk("player", p.Point{X: 125, Y: 145}),
p.Give("mug"),
p.SetFlag(FlagMugTaken),
p.Say("player", "Egy bögre, kérem."),
@@ -75,7 +75,7 @@ func defineKitchen(g *p.Game) {
),
OnUseWith: map[string]p.Action{
"beans": p.Seq(
p.Walk("player", p.Point{X: 180, Y: 130}),
p.Walk("player", p.Point{X: 180, Y: 145}),
p.SetFlag(FlagCoffeeHasBeans),
p.TakeAway("beans"),
p.Say("player", "Bab a helyén."),
@@ -83,7 +83,7 @@ func defineKitchen(g *p.Game) {
p.RunScript("victory")),
),
"mug": p.Seq(
p.Walk("player", p.Point{X: 180, Y: 130}),
p.Walk("player", p.Point{X: 180, Y: 145}),
p.SetFlag(FlagCoffeeHasMug),
p.TakeAway("mug"),
p.Say("player", "Bögre a helyén."),
@@ -105,7 +105,7 @@ func defineKitchen(g *p.Game) {
Label: "ajtó",
OnLook: p.Say("player", "Vissza a hálóba."),
OnUse: p.Seq(
p.Walk("player", p.Point{X: 20, Y: 130}),
p.Walk("player", p.Point{X: 20, Y: 145}),
p.GoTo("bedroom"),
),
},

2
domain/script.intro.go
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@@ -9,7 +9,7 @@ func defineIntroScript(g *p.Game) {
p.Wait(0.4),
p.Say("player", "Brr, hideg van."),
p.Say("player", "Egy kávé kéne, mielőtt szétszakad a fejem."),
p.Walk("player", p.Point{X: 160, Y: 130}),
p.Walk("player", p.Point{X: 200, Y: 145}),
),
})
}

17
pncdsl/asset.manager.go
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@@ -17,15 +17,17 @@ type AssetManager = Manager[Asset]
// The Asset structs in the manager remain immutable spec; this is where
// the actual *ebiten.Image bytes live, lazily decoded on first access.
type loadedAssets struct {
images map[string]*ebiten.Image
images map[string]*ebiten.Image
placeholders map[string]bool
defaultW, defaultH int
}
func newLoadedAssets(w, h int) *loadedAssets {
return &loadedAssets{
images: make(map[string]*ebiten.Image),
defaultW: w,
defaultH: h,
images: make(map[string]*ebiten.Image),
placeholders: make(map[string]bool),
defaultW: w,
defaultH: h,
}
}
@@ -37,16 +39,23 @@ func (la *loadedAssets) image(am *AssetManager, name string) *ebiten.Image {
if !ok {
img := placeholderImage(name, la.defaultW, la.defaultH)
la.images[name] = img
la.placeholders[name] = true
return img
}
img := loadImageFile(a.Path)
if img == nil {
img = placeholderImage(name, la.defaultW, la.defaultH)
la.placeholders[name] = true
}
la.images[name] = img
return img
}
func (la *loadedAssets) isPlaceholder(name string) bool {
_, _ = la.images[name], la.placeholders[name] // ensure populated via image()
return la.placeholders[name]
}
func loadImageFile(path string) *ebiten.Image {
f, err := os.Open(path)
if err != nil {

91
pncdsl/core.engine.go
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@@ -268,12 +268,14 @@ func drawCharacter(dst *ebiten.Image, g *Game, c *runtimeChar) {
w := c.def.W
h := c.def.H
if w == 0 {
w = 14
w = 24
}
if h == 0 {
h = 26
h = 56
}
if c.def.Sprite != "" {
// Try the real sprite first. Only fall through to the stylized
// placeholder when no actual art is on disk.
if c.def.Sprite != "" && !g.loaded.isPlaceholder(c.def.Sprite) {
img := g.loaded.image(g.AssetManager, c.def.Sprite)
sw, sh := img.Bounds().Dx(), img.Bounds().Dy()
if sw > 0 && sh > 0 {
@@ -284,9 +286,84 @@ func drawCharacter(dst *ebiten.Image, g *Game, c *runtimeChar) {
return
}
}
col := color.RGBA{200, 200, 200, 255}
if rgba, ok := c.def.SpeechColor.(color.RGBA); ok {
col = rgba
// Touch the asset cache so isPlaceholder is populated for later frames.
if c.def.Sprite != "" {
_ = g.loaded.image(g.AssetManager, c.def.Sprite)
}
x := c.pos.X - w/2
y := c.pos.Y - h
bodyCol := color.RGBA{200, 200, 200, 255}
if rgba, ok := c.def.SpeechColor.(color.RGBA); ok {
bodyCol = rgba
}
if w > h {
drawQuadrupedPlaceholder(dst, x, y, w, h, bodyCol)
} else {
drawHumanoidPlaceholder(dst, x, y, w, h, bodyCol)
}
vector.DrawFilledRect(dst, float32(c.pos.X-w/2), float32(c.pos.Y-h), float32(w), float32(h), col, false)
}
func drawHumanoidPlaceholder(dst *ebiten.Image, x, y, w, h float64, body color.RGBA) {
pants := color.RGBA{40, 50, 90, 255}
skin := color.RGBA{245, 200, 155, 255}
outline := color.RGBA{20, 20, 30, 255}
headR := h * 0.14
headCY := y + headR + 1
// pants / legs — two narrow strips
pantsTop := y + h*0.62
pantsH := h - (pantsTop - y) - 1
legW := w * 0.36
vector.DrawFilledRect(dst, float32(x+w*0.08), float32(pantsTop), float32(legW), float32(pantsH), pants, false)
vector.DrawFilledRect(dst, float32(x+w*0.56), float32(pantsTop), float32(legW), float32(pantsH), pants, false)
// torso — full-width rect, shirt color
torsoTop := headCY + headR
torsoH := pantsTop - torsoTop
vector.DrawFilledRect(dst, float32(x), float32(torsoTop), float32(w), float32(torsoH), body, false)
vector.StrokeRect(dst, float32(x), float32(torsoTop), float32(w), float32(torsoH), 1, outline, false)
// head — circle in skin tone
vector.DrawFilledCircle(dst, float32(x+w/2), float32(headCY), float32(headR), skin, true)
// feet — short dark blobs at the very bottom
footH := 2.0
vector.DrawFilledRect(dst, float32(x+w*0.05), float32(y+h-footH), float32(legW+2), float32(footH), outline, false)
vector.DrawFilledRect(dst, float32(x+w*0.55), float32(y+h-footH), float32(legW+2), float32(footH), outline, false)
}
func drawQuadrupedPlaceholder(dst *ebiten.Image, x, y, w, h float64, body color.RGBA) {
outline := color.RGBA{20, 20, 30, 255}
dark := color.RGBA{
R: body.R / 2, G: body.G / 2, B: body.B / 2, A: 255,
}
// body
bodyY := y + h*0.30
bodyH := h * 0.65
vector.DrawFilledRect(dst, float32(x), float32(bodyY), float32(w*0.78), float32(bodyH), body, false)
// head — circle on the right
headR := h * 0.30
headCX := x + w - headR
headCY := y + h*0.50
vector.DrawFilledCircle(dst, float32(headCX), float32(headCY), float32(headR), body, true)
// ears — two triangles approximated as small rects
earW := w * 0.07
earH := h * 0.30
vector.DrawFilledRect(dst, float32(headCX-headR*0.7), float32(y), float32(earW), float32(earH), body, false)
vector.DrawFilledRect(dst, float32(headCX+headR*0.4), float32(y), float32(earW), float32(earH), body, false)
// eye — dark dot
vector.DrawFilledCircle(dst, float32(headCX+headR*0.25), float32(headCY-1), 1.2, outline, true)
// tail — small dark line stub on the left
vector.DrawFilledRect(dst, float32(x-w*0.04), float32(bodyY+1), float32(w*0.08), 2, dark, false)
// legs — two short bars at the bottom
legW := w * 0.07
vector.DrawFilledRect(dst, float32(x+w*0.10), float32(y+h-3), float32(legW), 3, dark, false)
vector.DrawFilledRect(dst, float32(x+w*0.55), float32(y+h-3), float32(legW), 3, dark, false)
}