1 files changed, 99 insertions, 0 deletions
diff --git a/internal/model/map.go b/internal/model/map.go
new file mode 100644
index 0000000..de19660
--- /dev/null
+++ b/internal/model/map.go
@@ -0,0 +1,99 @@
+package model
+
+type Point struct{ X, Y int }
+
+type Cell struct {
+	Terrain int    `yaml:"t"`
+	Color   string `yaml:"c,omitempty"`
+	Text    string `yaml:"x,omitempty"`
+}
+
+type TextLabel struct {
+	Text  string `yaml:"text"`
+	Start Point  `yaml:"start"`
+	Color string `yaml:"color,omitempty"`
+}
+
+type Map struct {
+	Name       string           `yaml:"name"`
+	Width      int              `yaml:"width"`
+	Height     int              `yaml:"height"`
+	Grid       [][]Cell         `yaml:"-"`
+	Palette    []Terrain        `yaml:"palette"`
+	TextLabels []TextLabel      `yaml:"text_labels,omitempty"`
+	Submaps    map[Point]*Map   `yaml:"-"`
+	Parent     *Map             `yaml:"-"`
+	Filename   string           `yaml:"-"`
+}
+
+func NewMap(name string, w, h int, palette []Terrain) *Map {
+	grid := make([][]Cell, h)
+	for y := range grid {
+		grid[y] = make([]Cell, w)
+		for x := range grid[y] {
+			grid[y][x].Terrain = -1
+		}
+	}
+	return &Map{
+		Name:    name,
+		Width:   w,
+		Height:  h,
+		Grid:    grid,
+		Palette: palette,
+		Submaps: make(map[Point]*Map),
+	}
+}
+
+func (m *Map) Clone() *Map {
+	grid := make([][]Cell, m.Height)
+	for y := range grid {
+		grid[y] = make([]Cell, m.Width)
+		copy(grid[y], m.Grid[y])
+	}
+	c := &Map{
+		Name:    m.Name,
+		Width:   m.Width,
+		Height:  m.Height,
+		Grid:    grid,
+		Palette: m.Palette,
+		Submaps: make(map[Point]*Map),
+		Parent:  m.Parent,
+	}
+	for _, tl := range m.TextLabels {
+		c.TextLabels = append(c.TextLabels, tl)
+	}
+	for pt, sub := range m.Submaps {
+		c.Submaps[pt] = sub
+	}
+	return c
+}
+
+func (m *Map) InBounds(p Point) bool {
+	return p.X >= 0 && p.X < m.Width && p.Y >= 0 && p.Y < m.Height
+}
+
+func (m *Map) SetCell(p Point, terrain int, color ...string) {
+	if !m.InBounds(p) {
+		return
+	}
+	text := m.Grid[p.Y][p.X].Text
+	clr := ""
+	if len(color) > 0 {
+		clr = color[0]
+	}
+	m.Grid[p.Y][p.X] = Cell{Terrain: terrain, Color: clr, Text: text}
+}
+
+func (m *Map) SetText(p Point, text string) {
+	if !m.InBounds(p) {
+		return
+	}
+	m.Grid[p.Y][p.X].Text = text
+}
+
+func (m *Map) CellAt(p Point) Cell {
+	if !m.InBounds(p) {
+		return Cell{Terrain: -1}
+	}
+	return m.Grid[p.Y][p.X]
+}