Got help and fixed up to start part 5!

fov.go

@@ -1,18 +1,18 @@
 package main
 
 import (
-	"steel/mapping"
+	"steel/interfaces"
 
 	"github.com/kettek/goro/fov"
 )
 
-func InitializeFoV(g *mapping.GameMap) fov.Map {
-	fovMap := fov.NewMap(g.Width, g.Height, fov.AlgorithmBBQ)
+func InitializeFoV(g interfaces.GameMap) fov.Map {
+	fovMap := fov.NewMap(g.Width(), g.Height(), fov.AlgorithmBBQ)
 
-	for x := range g.Tiles {
-		for y, tile := range g.Tiles[x] {
-			fovMap.SetBlocksMovement(x, y, tile.BlockMovement)
-			fovMap.SetBlocksLight(x, y, tile.BlockSight)
+	for x := 0; x < g.Width(); x++ {
+		for y := 0; y < g.Height(); y++ {
+			fovMap.SetBlocksMovement(x, y, g.IsBlocked(x, y))
+			fovMap.SetBlocksLight(x, y, g.IsOpaque(x, y))
 		}
 	}
 

interfaces/gamemap.go

@@ -0,0 +1,12 @@
+package interfaces
+
+// Our GameMap interface. This provides access to tile state and more.
+type GameMap interface {
+	Width() int
+	Height() int
+	IsBlocked(x, y int) bool
+	IsOpaque(x, y int) bool
+	Explored(x, y int) bool
+	SetExplored(x, y int, explored bool)
+	MakeMap(maxRooms, roomMinSize, roomMaxSize int, player Entity)
+}

main.go

@@ -46,16 +46,11 @@ func main() {
 			npc,
 		}
 
-		gameMap := mapping.GameMap{
-			Width:  mapWidth,
-			Height: mapHeight,
-		}
-
-		gameMap.Initialize()
+		gameMap := mapping.NewGameMap(mapWidth, mapHeight)
 
 		gameMap.MakeMap(maxRooms, roomMinSize, roomMaxSize, player)
 
-		fovMap := InitializeFoV(&gameMap)
+		fovMap := InitializeFoV(gameMap)
 
 		for {
 
@@ -68,7 +63,7 @@ func main() {
 
 			fovRecompute = false
 
-			ClearAll(screen, entities)
+			ClearAll(screen, entities, fovMap)
 
 			// Handle events.
 			switch event := screen.WaitEvent().(type) {

mapping/gamemap.go

@@ -12,9 +12,9 @@ type GameMap struct {
 	tiles         [][]Tile
 }
 
-// NewGameMap initializes a GameMap's Tiles to match provided width and height and sets up a few tiles to block movement and sight. Returns a GameMap interface.
+// NewGameMap initializes a GameMap's tiles to match provided width and height and sets up a few tiles to block movement and sight. Returns a GameMap interface.
 func NewGameMap(width, height int) interfaces.GameMap {
-	g := &GameMapmake{
+	g := &GameMap{
 		width:  width,
 		height: height,
 	}
@@ -84,17 +84,17 @@ func (g *GameMap) CreateRoom(r Rect) {
 	for x := r.X1 + 1; x < r.X2; x++ {
 		for y := r.Y1 + 1; y < r.Y2; y++ {
 			if g.InBounds(x, y) {
-				g.Tiles[x][y] = Tile{}
+				g.tiles[x][y] = Tile{}
 			}
 		}
 	}
 }
 
-//Create HTunnel creates a horizontal tunnel from x1 to/from x1 starting at y.
+//CreateHTunnel creates a horizontal tunnel from x1 to/from x1 starting at y.
 func (g *GameMap) CreateHTunnel(x1, x2, y int) {
 	for x := goro.MinInt(x1, x2); x <= goro.MaxInt(x1, x2); x++ {
 		if g.InBounds(x, y) {
-			g.Tiles[x][y] = Tile{}
+			g.tiles[x][y] = Tile{}
 		}
 	}
 }
@@ -103,7 +103,7 @@ func (g *GameMap) CreateHTunnel(x1, x2, y int) {
 func (g *GameMap) CreateVTunnel(y1, y2, x int) {
 	for y := goro.MinInt(y1, y2); y <= goro.MaxInt(y1, y2); y++ {
 		if g.InBounds(x, y) {
-			g.Tiles[x][y] = Tile{}
+			g.tiles[x][y] = Tile{}
 		}
 	}
 }
@@ -133,7 +133,7 @@ func (g *GameMap) IsBlocked(x, y int) bool {
 	if !g.InBounds(x, y) {
 		return true
 	}
-	return g.Tiles[x][y].Flags&BlockMovement != 0
+	return g.tiles[x][y].Flags&BlockMovement != 0
 }
 
 // IsOpaque returns if the given coordinates are blocking sight.
@@ -144,6 +144,16 @@ func (g *GameMap) IsOpaque(x, y int) bool {
 	return g.tiles[x][y].Flags&BlockSight != 0
 }
 
+// Width returns the width of the map.
+func (g *GameMap) Width() int {
+	return g.width
+}
+
+// Height returns the height of the map.
+func (g *GameMap) Height() int {
+	return g.height
+}
+
 // InBounds returns if the given coordinates are within the map's bounds.
 func (g *GameMap) InBounds(x, y int) bool {
 	if x < 0 || x >= g.width || y < 0 || y >= g.height {

mapping/rect.go

@@ -6,20 +6,22 @@ type Rect struct {
 }
 
 // NewRect returns a new Rect type with its properties calculated.
-func NewRect(x int, y int, w int, h int) *Rect {
-	return &Rect{
+func NewRect(x int, y int, w int, h int) Rect {
+	return Rect{
 		X1: x,
 		Y1: y,
 		X2: x + w,
 		Y2: y + h,
 	}
 }
+
 // Center returns the center of the Rect.
 func (r *Rect) Center() (x, y int) {
 	return (r.X1 + r.X2) / 2, (r.Y1 + r.Y2) / 2
 }
+
 // Intersect returns a bool representing if the Rect intersects with another.
-func (r *Rect) Intersect(other *Rect) bool {
+func (r *Rect) Intersect(other Rect) bool {
 	if r.X1 <= other.X2 && r.X2 >= other.X1 && r.Y1 <= other.Y2 && r.Y2 >= other.Y1 {
 		return true
 	}

render.go

@@ -5,11 +5,10 @@ import (
 	"github.com/kettek/goro/fov"
 
 	"steel/interfaces"
-	"steel/mapping"
 )
 
 // DrawAll draws all entities and the gameMap to the screen and flushes it.
-func DrawAll(screen *goro.Screen, entities []interfaces.Entity, gameMap mapping.GameMap, fovMap fov.Map, fovRecompute bool, colors map[string]goro.Color) {
+func DrawAll(screen *goro.Screen, entities []interfaces.Entity, gameMap interfaces.GameMap, fovMap fov.Map, fovRecompute bool, colors map[string]goro.Color) {
 	if fovRecompute {
 		// Draw all the tiles in the game map.
 		for x := 0; x < gameMap.Width(); x++ {
@@ -51,7 +50,7 @@ func ClearAll(screen *goro.Screen, entities []interfaces.Entity, fovMap fov.Map)
 // DrawEntity draws a given entity to the screen.
 func DrawEntity(screen *goro.Screen, e interfaces.Entity, fovMap fov.Map) {
 	if fovMap.Visible(e.X(), e.Y()) {
-		screen.SetRune(e.X()), e.Y(), e.Rune())
+		screen.SetRune(e.X(), e.Y(), e.Rune())
 		screen.SetForeground(e.X(), e.Y(), e.Style().Foreground)
 	}
 }