goo/internal/boardstate.go

package goo

import . "git.danitheskunk.com/squishy/blooblib"

type CellState uint8

const (
	Empty = CellState(0)
	Black = CellState(1)
	White = CellState(2)
)

type BoardState struct {
	tilemap *Tilemap
}

var tilesStones []*Image

func NewBoardState() *BoardState {
	if tilesStones == nil {
		tilesStones = LoadImage("assets/stones.png").MakeTileset(Vec2i{X: 16, Y: 16})
	}

	return &BoardState{tilemap: NewTilemap(Vec2i{X: 19, Y: 19}, tilesStones)}
}

func (bs *BoardState) Get(pos Vec2i) CellState {
	if pos.X < 0 || pos.Y < 0 || pos.X >= 19 || pos.Y >= 19 {
		panic("boardstate out of bounds")
	}
	return CellState(bs.tilemap.Get(pos))
}

func (bs *BoardState) Set(pos Vec2i, val CellState) {
	if pos.X < 0 || pos.Y < 0 || pos.X >= 19 || pos.Y >= 19 {
		panic("boardstate out of bounds")
	}
	bs.tilemap.Set(pos, int(val))
}

func (bs *BoardState) Clear() {
	bs.tilemap.Clear(int(Empty))
}

func (bs *BoardState) Draw(target *Image) {
	target.DrawTilemap(bs.tilemap, Vec2i{X: 10 * 16, Y: 1 * 16})
}

func (bs *BoardState) DrawHover(target *Image, pos Vec2i, player CellState) {
	if bs.Get(pos) == Empty {
		switch player {
		case Black:
			target.Draw(tilesStones[tileStoneBlackHalf], Vec2i{X: (10 + pos.X) * 16, Y: (1 + pos.Y) * 16})
			break
		case White:
			target.Draw(tilesStones[tileStoneWhiteHalf], Vec2i{X: (10 + pos.X) * 16, Y: (1 + pos.Y) * 16})
			break
		}
	}
}