doodle/pkg/doodads/doodad.go
Noah Petherbridge b4922edf5d Doodad Tool: Add Tag Support for edit-doodad
* The `doodad edit-doodad` command now allows setting custom key/value
  tags in doodad files, for extra data storage useful to their scripts.
* Colored keys and doors now store a `color` tag with the appropriate
  color so that their scripts don't have to parse their Title to find
  that information.
* Trapdoors now store a `direction` tag to hold the direction the door
  is facing.
2020-01-02 22:12:20 -08:00

78 lines
1.8 KiB
Go

package doodads
import (
"git.kirsle.net/apps/doodle/pkg/balance"
"git.kirsle.net/apps/doodle/pkg/level"
"git.kirsle.net/apps/doodle/pkg/log"
"git.kirsle.net/go/render"
)
// Doodad is a reusable component for Levels that have scripts and graphics.
type Doodad struct {
level.Base
Filename string `json:"-"` // used internally, not saved in json
Hidden bool `json:"hidden,omitempty"`
Palette *level.Palette `json:"palette"`
Script string `json:"script"`
Layers []Layer `json:"layers"`
Tags map[string]string `json:"data"` // arbitrary key/value data storage
}
// Layer holds a layer of drawing data for a Doodad.
type Layer struct {
Name string `json:"name"`
Chunker *level.Chunker `json:"chunks"`
}
// New creates a new Doodad.
func New(size int) *Doodad {
if size == 0 {
size = balance.DoodadSize
}
return &Doodad{
Base: level.Base{
Version: 1,
},
Palette: level.DefaultPalette(),
Layers: []Layer{
{
Name: "main",
Chunker: level.NewChunker(size),
},
},
Tags: map[string]string{},
}
}
// Tag gets a value from the doodad's tags.
func (d *Doodad) Tag(name string) string {
if v, ok := d.Tags[name]; ok {
return v
}
log.Warn("Doodad(%s).Tag(%s): tag not defined", d.Title, name)
return ""
}
// ChunkSize returns the chunk size of the Doodad's first layer.
func (d *Doodad) ChunkSize() int {
return d.Layers[0].Chunker.Size
}
// Rect returns a rect of the ChunkSize for scaling a Canvas widget.
func (d *Doodad) Rect() render.Rect {
var size = d.ChunkSize()
return render.Rect{
W: size,
H: size,
}
}
// Inflate attaches the pixels to their swatches after loading from disk.
func (d *Doodad) Inflate() {
d.Palette.Inflate()
for _, layer := range d.Layers {
layer.Chunker.Inflate(d.Palette)
}
}