diff --git a/chapter/chapter_5.c b/chapter/chapter_5.c
index 88dfceb..a49f426 100644
--- a/chapter/chapter_5.c
+++ b/chapter/chapter_5.c
@@ -269,18 +269,19 @@ world_t * game_world (number_t width, number_t height, ...) {
 		generator_t * generator = (generator_t *) va_arg (list, void *);
 
 		if (generator != NULL) {
-			number_t   w      = (number_t)  va_arg (list, int);
-			number_t   h      = (number_t)  va_arg (list, int);
-			number_t   x      = (number_t)  va_arg (list, int);
-			number_t   y      = (number_t)  va_arg (list, int);
-			block_t  * block  = (block_t *) va_arg (list, void *);
+			memory_t data  = (memory_t) va_arg (list, void *);
+			number_t w     = (number_t) va_arg (list, int);
+			number_t h     = (number_t) va_arg (list, int);
+			number_t x     = (number_t) va_arg (list, int);
+			number_t y     = (number_t) va_arg (list, int);
 
-			generator->generate (world, w, h, x, y, block);
+			generator->generate (world, data, w, h, x, y);
 		} else break;
 	}
 
 	va_end (list);
 
+	game_free_memory (world->bots);
 	game_free_memory (world->block);
 	game_free_memory (world);
 
@@ -324,6 +325,10 @@ procedure_t game_render_world (world_t * world, number_t x, number_t y, number_t
 			game_render_block (world->block [j * world->width + i], i + x, j + y);
 		}
 	}
+
+	for (number_t index = 0; index < world->bot_count; ++index) {
+		game_render_bot (& world->bots [index]);
+	}
 }
 
 #endif
diff --git a/chapter/chapter_5.h b/chapter/chapter_5.h
index 713bd22..6d5f366 100644
--- a/chapter/chapter_5.h
+++ b/chapter/chapter_5.h
@@ -110,10 +110,14 @@ typedef struct block_t {
 typedef struct world_t {
 	number_t     width;
 	number_t     height;
+	number_t     item_count;
+	number_t     bot_count;
 	block_t  * * block;
+	bot_t      * bots;
+	player_t   * player;
 } world_t;
 
-typedef procedure_t (* generate_t) (world_t *, number_t, number_t, number_t, number_t, block_t *);
+typedef procedure_t (* generate_t) (world_t *, memory_t, number_t, number_t, number_t, number_t);
 
 typedef struct generator_t {
 	generate_t generate;
diff --git a/chapter/chapter_6.c b/chapter/chapter_6.c
index 90c973c..4459d80 100644
--- a/chapter/chapter_6.c
+++ b/chapter/chapter_6.c
@@ -13,36 +13,48 @@ It is distributed in the hope that it will be useful or harmful, it really depen
 
 #define UNUSED(variable) (void) variable
 
-static procedure_t generate_full_fill_function (world_t * world, number_t width, number_t height, number_t x, number_t y, block_t * block) {
-	UNUSED (width);
-	UNUSED (height);
-	UNUSED (x);
-	UNUSED (y);
+static procedure_t generate_full_fill_function (world_t * world, memory_t data, number_t width, number_t height, number_t x, number_t y) {
+	UNUSED (width); UNUSED (height); UNUSED (x); UNUSED (y);
 
 	for (number_t j = 0; j < world->height; ++j) {
 		for (number_t i = 0; i < world->width; ++i) {
-			world->block [j * world->width + i] = block;
+			world->block [j * world->width + i] = (block_t *) data;
 		}
 	}
 }
 
-static procedure_t generate_rectangle_fill_function (world_t * world, number_t width, number_t height, number_t x, number_t y, block_t * block) {
+static procedure_t generate_rectangle_fill_function (world_t * world, memory_t data, number_t width, number_t height, number_t x, number_t y) {
 	for (number_t j = 0; j < height; ++j) {
 		for (number_t i = 0; i < width; ++i) {
-			world->block [(j + y) * world->width + (i + x)] = block;
+			world->block [(j + y) * world->width + (i + x)] = (block_t *) data;
 		}
 	}
 }
 
-static procedure_t generate_rectangle_line_function (world_t * world, number_t width, number_t height, number_t x, number_t y, block_t * block) {
+static procedure_t generate_rectangle_line_function (world_t * world, memory_t data, number_t width, number_t height, number_t x, number_t y) {
 	for (number_t offset = 0; offset < width; ++offset) {
-		world->block [world->width * y                + offset + x] = block;
-		world->block [world->width * (height - 1 + y) + offset + x] = block;
+		world->block [world->width * y                + offset + x] = (block_t *) data;
+		world->block [world->width * (height - 1 + y) + offset + x] = (block_t *) data;
 	}
 
 	for (number_t offset = 0; offset < height; ++offset) {
-		world->block [world->width * (y + offset)             + x] = block;
-		world->block [world->width * (y + offset) + width - 1 + x] = block;
+		world->block [world->width * (y + offset)             + x] = (block_t *) data;
+		world->block [world->width * (y + offset) + width - 1 + x] = (block_t *) data;
+	}
+}
+
+static procedure_t generate_create_bots_function (world_t * world, memory_t data, number_t width, number_t height, number_t x, number_t y) {
+	UNUSED (height); UNUSED (x); UNUSED (y);
+
+	bot_t    * bot   = (bot_t *) data;
+	number_t   count = width;
+
+	for (number_t index = 0; index < count; ++index) {
+		world->bot_count += 1;
+		world->bots = reallocate (world->bots, world->bot_count * (number_t) sizeof (* world->bots));
+		memory_copy (& world->bots [world->bot_count - 1], game_bot (bot->name, bot->symbol, NULL, bot->health, bot->mana, bot->stamina), (number_t) sizeof (* world->bots));
+		world->bots [world->bot_count - 1].x = randomize (1, 40);
+		world->bots [world->bot_count - 1].y = randomize (1, 40);
 	}
 }
 
@@ -50,6 +62,7 @@ procedure_t play_game (procedure_t) {
 	generator_t * full_fill      = game_generator (generate_full_fill_function);
 	generator_t * rectangle_fill = game_generator (generate_rectangle_fill_function);
 	generator_t * rectangle_line = game_generator (generate_rectangle_line_function);
+	generator_t * create_bots    = game_generator (generate_create_bots_function);
 
 	bot_t * goblin     = game_bot ("Goblin",     game_symbol ('g', COLOUR_RED, EFFECT_NORMAL), NULL, game_bundle (0, 11, 11), game_bundle (0, 3, 3), game_bundle (0, 23, 23));
 	bot_t * hob_goblin = game_bot ("Hob Goblin", game_symbol ('g', COLOUR_RED, EFFECT_BOLD),   NULL, game_bundle (0, 17, 17), game_bundle (0, 7, 7), game_bundle (0, 31, 31));
@@ -76,9 +89,10 @@ procedure_t play_game (procedure_t) {
 	block_t * stone_floor = game_block ("Stone Floor", game_symbol ('.', COLOUR_GREY,  EFFECT_BOLD), NULL, FALSE, FALSE);
 	block_t * stone_wall  = game_block ("Stone Wall",  game_symbol ('#', COLOUR_GREY,  EFFECT_BOLD), NULL, TRUE,  FALSE);
 
-	world_t * world = game_world (300, 100, full_fill,      0, 0, 0, 0, grass,
-	                                        rectangle_fill, 5, 9, 2, 4, stone_floor,
-	                                        rectangle_line, 5, 9, 2, 4, stone_wall,
+	world_t * world = game_world (300, 100, full_fill,      grass,       0, 0, 0, 0,
+	                                        rectangle_fill, stone_floor, 5, 9, 2, 4,
+	                                        rectangle_line, stone_wall,  5, 9, 2, 4,
+	                                        create_bots,    goblin,      3, 0, 0, 0,
 	                                        NULL);
 
 	player->attributes [0]->points->current = 7;
@@ -106,7 +120,10 @@ procedure_t play_game (procedure_t) {
 
 		game_render_world (world, 0, 0, game_screen_offset, curses_screen_height);
 
-		game_render_bot (goblin);
+		game_render_bot (goblin);hob_goblin->x=1;hob_goblin->y=1;
+		game_render_bot (hob_goblin);orc->x=2;orc->y=2;
+		game_render_bot (orc);ogre->x=3;ogre->y=3;
+		game_render_bot (ogre);
 
 		game_render_player (player);