diff --git a/json_generator.py b/json_generator.py
new file mode 100644
index 0000000..9ae882b
--- /dev/null
+++ b/json_generator.py
@@ -0,0 +1,126 @@
+import json
+import random
+import project_constants as const
+
+
+class JsonGenerator:
+    grid = dict()
+
+    def __init__(self, agent_starting_position):
+        self.agent_starting_position = agent_starting_position
+        starting_row, starting_column = agent_starting_position
+        self.grid["agent_starting_position"] = str(starting_row) + ',' + str(starting_column)
+
+    # overwrites grid field with a new grid with randomized colors and mines
+    def generate_randomized_grid(self, dimensions):
+        # clearing grid field
+        self.clear_tile_dictionary()
+
+        # getting grid dimensions
+        row, column = dimensions
+
+        for i in range(row):
+            for j in range(column):
+                # picking random values for tiles
+                random_tile_color = random.choice(const.STRUCT_TILE_COLORS)
+                random_mine_type = random.choice(const.STRUCT_MINE_TYPES)
+
+                # randomly checking if a mine should appear
+                if random.random() < 0.75:
+                    # creating a tile without a mine
+                    self.grid[str(i) + ',' + str(j)] = {
+                        "color": random_tile_color,
+                        "mine": None
+                    }
+                else:
+                    # creating a tile with a mine
+                    self.grid[str(i) + ',' + str(j)] = {
+                        "color": random_tile_color,
+                        "mine": {
+                            "mine_type": random_mine_type
+                        }
+                    }
+
+    # adds a new tile or edits an existing one to the grid field
+    def add_tile(self, position, color):
+        # getting added/edited tile's index values
+        row, column = position
+        # creating new tile without a mine
+        self.grid[str(row) + ',' + str(column)] = {
+            "color": color,
+            "mine": None
+        }
+
+    # adds a new tile with a mine or edits an existing one to the grid field
+    def add_tile_with_a_mine(self, position, color, mine_type):
+        # getting added/edited tile's index values
+        row, column = position
+        # creating a new tile with a mine
+        self.grid[str(row) + ',' + str(column)] = {
+            "color": color,
+            "mine": {
+                "mine_type": mine_type
+            }
+        }
+
+    # deletes a mine with a given position from the grid field
+    def delete_a_tile(self, position):
+        # getting tile's index values
+        row, column = position
+        # deleting a tile with given key
+        self.grid.pop(str(row) + ',' + str(column))
+
+    # adds a mine to a tile in the grid field
+    def add_a_mine(self, position, mine_type):
+        # getting edited tile's index values
+        row, column = position
+        # adding a mine to the edited tile
+        self.grid[str(row) + ',' + str(column)]["mine"] = {
+            "mine_type": mine_type
+        }
+
+    # deletes a mine from a tile stored in the grid field
+    def delete_a_mine(self, position):
+        # getting edited tile's index values
+        row, column = position
+        # removing mine from the edited tile
+        self.grid[str(row) + ',' + str(column)]["mine"] = None
+
+    # returns the grid field
+    def get_tile_dictionary(self):
+        return self.grid
+
+    # clears the grid field
+    def clear_tile_dictionary(self):
+        self.grid.clear()
+        # resets agents starting position
+        starting_row, starting_column = self.agent_starting_position
+        self.grid["agent_starting_position"] = str(starting_row) + ',' + str(starting_column)
+
+    # loads a grid from a file and overwrites the grid field
+    def load_from_a_file(self, file_path):
+        # opens file for reading
+        with open(file_path, 'r') as input_file:
+            # overwrites the grid field for the grid stored in a file
+            self.grid = json.load(input_file)
+
+    # saves the current grid field to a file
+    def save_to_a_file(self, file_path, access_mode):
+        # opens file with a given access mode (w - write / a - append)
+        with open(file_path, access_mode) as output_file:
+            # saves the grid to a file
+            json.dump(self.grid, output_file, indent=2, sort_keys=True)
+
+    # edits a grid in a file. doesn't delete data, only overwrites and adds new entries
+    def edit_a_file(self, file_path):
+        # open a file for reading
+        with open(file_path, "r") as input_file:
+            # loads data that was stored in the file previously
+            previous_data = json.load(input_file)
+            # creates and updates a new grid using it's own grid field
+            new_grid = previous_data
+            new_grid.update(self.grid)
+            # opens the file for writing
+            with open(file_path, "w") as output_file:
+                # saves the newly created grid
+                json.dump(new_grid, output_file, indent=2, sort_keys=True)
diff --git a/project_constants.py b/project_constants.py
index af617e6..032af30 100644
--- a/project_constants.py
+++ b/project_constants.py
@@ -4,6 +4,7 @@ import os
 
 # VARIABLE STARTS WITH ... IF IT'S
 # V         a value like a string or an int
+# STRUCT    a list or other structure of values
 # ASSET     a png file (or other graphic format)
 
 
@@ -30,6 +31,13 @@ SCREEN = pygame.display.set_mode\
 )
 
 
+# =============== #
+# === STRUCTS === #
+# =============== #
+
+STRUCT_TILE_COLORS = ["blue", "green", "orange", "purple", "red", "white", "yellow"]
+STRUCT_MINE_TYPES = ['a', 'b', 'f', 'k']
+
 
 # ============== #
 # === ASSETS === #