graphics for demo game

pncdsl/core.engine.go

@@ -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}
+	// 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 {
-		col = rgba
+		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)
 }