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package main
import (
"github.com/kch42/gomcmap/mcmap"
)
type BiomeGetSetter interface {
GetBiomeAt(x, z int) (mcmap.Biome, bool)
SetBiomeAt(x, z int, bio mcmap.Biome)
}
type XZPos struct {
X, Z int
}
type Tool interface {
SingleClick() bool // Whether only one click should be performed (true) or the action should be repeated, if the mouse is dragged
Do(bio mcmap.Biome, biogs BiomeGetSetter, x, z int)
}
type drawTool struct {
radGetter func() int
}
func (d *drawTool) SingleClick() bool { return false }
func (d *drawTool) Do(bio mcmap.Biome, biogs BiomeGetSetter, x, z int) {
rad := d.radGetter()
if rad <= 0 {
return
}
for xp := x - (rad - 1); xp < x+rad; xp++ {
for zp := z - (rad - 1); zp < z+rad; zp++ {
biogs.SetBiomeAt(xp, zp, bio)
}
}
}
func NewDrawTool(radGetter func() int) *drawTool {
return &drawTool{radGetter}
}
type fillTool struct{}
func (f *fillTool) SingleClick() bool { return true }
func (f *fillTool) Do(bio mcmap.Biome, biogs BiomeGetSetter, x, z int) {
if oldbio, ok := biogs.GetBiomeAt(x, z); ok {
floodfill(oldbio, bio, biogs, x, z)
}
}
func floodfill(oldbio, newbio mcmap.Biome, biogs BiomeGetSetter, x, z int) {
if bio, ok := biogs.GetBiomeAt(x, z); ok && (bio == oldbio) {
biogs.SetBiomeAt(x, z, newbio)
floodfill(oldbio, newbio, biogs, x-1, z)
floodfill(oldbio, newbio, biogs, x+1, z)
floodfill(oldbio, newbio, biogs, x, z-1)
floodfill(oldbio, newbio, biogs, x, z+1)
}
}
func NewFillTool() *fillTool {
return new(fillTool)
}
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