When you die a new game starts.

main.go

@@ -34,13 +34,15 @@ type Position struct {
 
 type Enemy struct {
   hp int
+  pos Position
+  damage int
 }
 
 type Game struct {
   screen tcell.Screen
   level Map
   paths Paths
-  player Position
+  player Enemy
   status string
   width int
   height int
@@ -104,7 +106,7 @@ func (game *Game) Render() {
     game.DrawPaths()
   }
 
-  game.DrawEntity('@', game.player, tcell.ColorYellow)
+  game.DrawEntity('@', game.player.pos, tcell.ColorYellow)
 
   for pos, _ := range game.enemies {
     game.DrawEntity('G', pos, tcell.ColorRed)
@@ -126,7 +128,7 @@ func (game *Game) Exit() {
 func (game *Game) Occupied(x int, y int) bool {
   pos := Position{x, y}
   _, is_enemy := game.enemies[pos]
-  is_player := pos == game.player
+  is_player := pos == game.player.pos
 
   // Inbounds comes first to prevent accessing level with bad x,y
   return !game.Inbounds(pos, 1) ||
@@ -135,7 +137,7 @@ func (game *Game) Occupied(x int, y int) bool {
       is_player
 }
 
-func (game *Game) Death() {
+func (game *Game) EnemyDeath() {
   is_dead := make([]Position, 0, len(game.enemies))
 
   for pos, enemy := range game.enemies {
@@ -149,28 +151,37 @@ func (game *Game) Death() {
   }
 }
 
-func (game *Game) Attack(target Position) {
-  enemy, hit_enemy := game.enemies[target]
-
-  if hit_enemy {
-    damage := rand.Int() % 10
-    enemy.hp -= damage
+func (game *Game) ApplyDamage(attacker *Enemy, defender *Enemy) {
+  damage := rand.Int() % attacker.damage
+  defender.hp -= damage
   if damage == 0 {
-      game.Status("YOU MISSED!")
-    } else if enemy.hp > 0 {
+    game.Status("MISSED!")
+  } else if defender.hp > 0 {
     game.Status(fmt.Sprintf("HIT %d damage", damage))
   } else {
-      game.Status("ENEMY DEAD!")
+    game.Status("DEAD!")
   }
+}
+
+func (game *Game) Attack(target Position) {
+  enemy, hit_enemy := game.enemies[target]
+
+  if hit_enemy {
+    game.ApplyDamage(&game.player, enemy)
+    game.ApplyDamage(enemy, &game.player)
   }
 }
 
 func (game *Game) MovePlayer(x_delta int, y_delta int) {
-  target := Position{game.player.x + x_delta, game.player.y + y_delta}
+  target := Position{
+    game.player.pos.x + x_delta,
+    game.player.pos.y + y_delta,
+  }
+
   if game.Occupied(target.x, target.y) {
     game.Attack(target)
   } else {
-    game.player = target
+    game.player.pos = target
   }
 }
 
@@ -209,11 +220,19 @@ func (game *Game) HandleEvents() bool {
   return true
 }
 
-func MakeGame(width int, height int) (*Game) {
-  var game Game
+func (game *Game) InitScreen() {
+  encoding.Register()
+
   var err error
+  game.screen, err = tcell.NewScreen()
+  if err != nil { log.Fatal(err) }
 
-  encoding.Register()
+  err = game.screen.Init()
+  if err != nil { log.Fatal(err) }
+}
+
+func MakeGame(width int, height int) (*Game) {
+  var game Game
 
   game.width = width
   game.height = height
@@ -222,15 +241,7 @@ func MakeGame(width int, height int) (*Game) {
   game.level = make(Map, height, height)
   game.paths = make(Paths, height, height)
 
-  if RENDER {
-    game.screen, err = tcell.NewScreen()
-    if err != nil { log.Fatal(err) }
-
-    err = game.screen.Init()
-    if err != nil { log.Fatal(err) }
-  }
-
-  game.player = Position{1,1}
+  game.player = Enemy{20, Position{1,1}, 4}
 
   return &game
 }
@@ -401,7 +412,7 @@ func (game *Game) PathAddNeighbors(neighbors []Position, closed Map, near Positi
 func (game *Game) PathEnemies() {
   in_grid := make([][]int, game.height, game.height)
   game.FillPaths(in_grid, 1)
-  in_grid[game.player.y][game.player.x] = 0
+  in_grid[game.player.pos.y][game.player.pos.x] = 0
 
   game.FillPaths(game.paths, PATH_LIMIT)
   closed := game.CloneMap()
@@ -496,27 +507,42 @@ func (game *Game) MakeMap() []Position {
 func (game *Game) PlaceEnemies(places []Position) {
   for _, pos := range places {
     if rand.Int() % 2 == 0 {
-      game.enemies[pos] = &Enemy{10}
+      game.enemies[pos] = &Enemy{10, pos, 4}
     }
   }
 }
 
+func (game *Game) Restart() {
+  game.Status("YOU DIED! Try again.")
+  game.player.hp = 20
+  game.player.pos = Position{1,1}
+  game.screen.Clear()
+}
+
 func main() {
   out, err := os.Create("debug.log")
   if err != nil { log.Fatal(err) }
   dbg = log.New(out, "", log.LstdFlags)
 
   game := MakeGame(27, 17)
+  game.InitScreen()
+
+  for {
     dead_ends := game.MakeMap()
     game.PlaceEnemies(dead_ends)
     game.Render()
 
-  for game.HandleEvents() {
-    game.Death()
+    for game.HandleEvents() && game.player.hp > 0 {
+      game.EnemyDeath()
       game.PathEnemies()
       game.EnemyMovement()
       game.Render()
     }
 
+    if game.player.hp <= 0 {
+      game.Restart()
+    } else {
       game.Exit()
+    }
+  }
 }