1 files changed, 140 insertions, 0 deletions
diff --git a/internal/game/cmd_map.go b/internal/game/cmd_map.go
new file mode 100644
index 0000000..7c506f9
--- /dev/null
+++ b/internal/game/cmd_map.go
@@ -0,0 +1,140 @@
+package game
+
+import (
+	"strings"
+
+	"thirdcollapse/internal/net"
+	"thirdcollapse/internal/player"
+	"thirdcollapse/internal/world"
+)
+
+func (g *Game) doMap(sess *net.Session) {
+	p := sess.Player.(*player.Player)
+	mapWidth := p.OptionInt("mapwidth")
+	mapHeight := p.OptionInt("mapheight")
+	if mapWidth < 5 {
+		mapWidth = 5
+	}
+	if mapHeight < 5 {
+		mapHeight = 5
+	}
+
+	lines := buildFullMap(g, p.RoomID, mapWidth, mapHeight)
+
+	mode := p.OptionString("mappadding")
+	if mode == "none" || mode == "x" {
+		lines = stripBlankRows(lines)
+	}
+	if mode == "none" || mode == "y" {
+		lines = leftTrimCommon(lines)
+	}
+
+	if len(lines) == 0 {
+		sess.WriteLine("\nNo map data to display.")
+		return
+	}
+	sess.WriteLine("")
+	for _, line := range lines {
+		sess.WriteLine(line)
+	}
+}
+
+func stripBlankRows(lines []string) []string {
+	var out []string
+	for _, line := range lines {
+		if strings.TrimSpace(line) != "" {
+			out = append(out, line)
+		}
+	}
+	return out
+}
+
+func leftTrimCommon(lines []string) []string {
+	min := -1
+	for _, line := range lines {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+		n := 0
+		for _, r := range line {
+			if r == ' ' {
+				n++
+			} else {
+				break
+			}
+		}
+		if min < 0 || n < min {
+			min = n
+		}
+	}
+	if min <= 0 {
+		return lines
+	}
+	result := make([]string, len(lines))
+	for i, line := range lines {
+		if len(line) <= min {
+			result[i] = ""
+		} else {
+			result[i] = line[min:]
+		}
+	}
+	return result
+}
+
+func buildFullMap(g *Game, roomID, mapWidth, mapHeight int) []string {
+	mg := buildGraph(g, roomID)
+
+	grid := make([][]rune, mapHeight)
+	for i := range grid {
+		grid[i] = make([]rune, mapWidth)
+		for j := range grid[i] {
+			grid[i][j] = ' '
+		}
+	}
+
+	cx := mapWidth / 2
+	cy := mapHeight / 2
+
+	for pos, rid := range mg.posToRoom {
+		gr := cy + pos[1]*2
+		gc := cx + pos[0]*2
+		if gr < 0 || gr >= mapHeight || gc < 0 || gc >= mapWidth {
+			continue
+		}
+		if rid == roomID {
+			grid[gr][gc] = '@'
+		} else {
+			grid[gr][gc] = roomMapSymbol(g, rid)
+		}
+	}
+
+	for pos, rid := range mg.posToRoom {
+		x, y := pos[0], pos[1]
+
+		if rightID, ok := mg.posToRoom[[2]int{x + 1, y}]; ok {
+			if exitsConnect(g, rid, rightID, world.East, world.West) {
+				gr := cy + y*2
+				gc := cx + x*2 + 1
+				if gr >= 0 && gr < mapHeight && gc >= 0 && gc < mapWidth {
+					grid[gr][gc] = '─'
+				}
+			}
+		}
+
+		if bottomID, ok := mg.posToRoom[[2]int{x, y + 1}]; ok {
+			if exitsConnect(g, rid, bottomID, world.South, world.North) {
+				gr := cy + y*2 + 1
+				gc := cx + x*2
+				if gr >= 0 && gr < mapHeight && gc >= 0 && gc < mapWidth {
+					grid[gr][gc] = '│'
+				}
+			}
+		}
+	}
+
+	lines := make([]string, mapHeight)
+	for i := range grid {
+		lines[i] = string(grid[i])
+	}
+	return lines
+}