diff --git a/.idea/misc.xml b/.idea/misc.xml
index 715ed69..adaa126 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -3,5 +3,5 @@
   <component name="JavaScriptSettings">
     <option name="languageLevel" value="ES6" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (AL-2020)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.8 (Projekt)" project-jdk-type="Python SDK" />
 </project>
\ No newline at end of file
diff --git a/.idea/wozek.iml b/.idea/wozek.iml
index a9742fc..904114b 100644
--- a/.idea/wozek.iml
+++ b/.idea/wozek.iml
@@ -4,7 +4,7 @@
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/venv" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.7 (AL-2020)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.8 (Projekt)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="TestRunnerService">
diff --git a/__pycache__/agent.cpython-38.pyc b/__pycache__/agent.cpython-38.pyc
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index 0000000..7eee450
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index 0000000..a0ab288
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index 0000000..82c5772
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index 0000000..281b85f
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diff --git a/__pycache__/field.cpython-38.pyc b/__pycache__/field.cpython-38.pyc
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index 0000000..4413c80
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index 0000000..e39b7f4
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diff --git a/__pycache__/mcda.cpython-38.pyc b/__pycache__/mcda.cpython-38.pyc
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index 0000000..4a133b5
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diff --git a/__pycache__/product.cpython-38.pyc b/__pycache__/product.cpython-38.pyc
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index 0000000..61b31f2
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diff --git a/__pycache__/settings.cpython-38.pyc b/__pycache__/settings.cpython-38.pyc
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index 0000000..19a5bce
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diff --git a/__pycache__/shelf.cpython-38.pyc b/__pycache__/shelf.cpython-38.pyc
new file mode 100644
index 0000000..16977ed
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diff --git a/__pycache__/supply.cpython-38.pyc b/__pycache__/supply.cpython-38.pyc
new file mode 100644
index 0000000..39dde2d
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diff --git a/__pycache__/sweets.cpython-38.pyc b/__pycache__/sweets.cpython-38.pyc
new file mode 100644
index 0000000..8bdc65f
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diff --git a/main.py b/main.py
index f71fa65..8cc46c1 100644
--- a/main.py
+++ b/main.py
@@ -9,7 +9,7 @@ from agent import Agent
 from settings import Settings
 from board import create_board, draw_board
 from random import randint, choice
-
+from mcda import choseProducts
 
 # Inicjalizacja programu i utworzenie obiektu ekrany
 def run():
@@ -21,6 +21,8 @@ def run():
     board = create_board(screen)
     my_tree = decision_tree.build_tree(data.learning_data)
 
+    produsctsFromSupply = choseProducts(5)
+
     # for row in board:
     #     for field in row:
     #         print(field.cost_of_travel)
diff --git a/mcda.py b/mcda.py
new file mode 100644
index 0000000..742828c
--- /dev/null
+++ b/mcda.py
@@ -0,0 +1,100 @@
+from supply import *
+
+allProducts = create_data_products()
+
+color = {'black': 16, 'gold': 10, 'purple': 5, 'brown': 7, 'blue': 12, 'white': 14, 'red': 13, 'orange': 11}
+shape = {'rectangle': 15, 'pack': 19, 'square': 9, 'jar': 7}
+size = {'small': 7, 'medium': 16, 'big': 13}
+
+def sizeValue(X):
+    if X.size == 'small':
+        return X.mass/5
+    if X.size == 'medium':
+        return X.mass/10
+    if X.size == 'big':
+        return X.mass/20
+parameters = {
+    'color': {'weights': 3, 'q': 1, 'p': 5},
+    'shape': {'weights': 4, 'q': 1, 'p': 6},
+    'mass': {'weights': 0.5, 'q': 2, 'p': 10},
+    'size': {'weights': 1, 'q': 1, 'p': 8}
+
+}
+def getConcordance(gA, gB, q, p):
+    if gB <= gA + q:
+        return 1
+    if gB <= gA + p:
+        return (p - gB + gA) / (p - q)
+    return 0
+
+def getAllTypeConcordance(A, B):
+    concordance = 0.0
+    weight_sum = 0
+
+    parameter = parameters['color']
+    w, q, p = parameter['weights'], parameter['q'], parameter['p']
+    concordance += getConcordance(color[A.color], color[B.color], q, p) * w
+    weight_sum += w
+
+    parameter = parameters['shape']
+    w, q, p = parameter['weights'], parameter['q'], parameter['p']
+    concordance += getConcordance(shape[A.shape], shape[B.shape], q, p) * w
+    weight_sum += w
+
+    parameter = parameters['mass']
+    w, q, p = parameter['weights'], parameter['q'], parameter['p']
+    concordance += getConcordance(sizeValue(A), sizeValue(B), q, p) * w
+    weight_sum += w
+
+    parameter = parameters['size']
+    w, q, p = parameter['weights'], parameter['q'], parameter['p']
+    concordance += getConcordance(size[A.size], size[B.size], q, p) * w
+    weight_sum += w
+
+    concordance /= weight_sum
+    return concordance
+
+def getConcordanceAllProducts():
+
+    C = []
+
+    for i in range(len(allProducts)):
+        c = 0
+        for j in range(len(allProducts)):
+            if j==i:
+                continue
+            else:
+                c += getAllTypeConcordance(allProducts[i], allProducts[j])
+        c /= len(allProducts)-1
+        C.append(c)
+    return C
+
+def choseProducts(number):
+    C = getConcordanceAllProducts()
+    products = []
+    prev = -1
+    if number > len(allProducts):
+        return allProducts
+    while number > 0:
+        max = -1
+        if prev == -1:
+            max = 0
+        for j in range(len(allProducts)):
+            if prev == -1:
+                if C[max]<C[j]:
+                    max = j
+            elif max == -1:
+                if C[prev]>C[j]:
+                    max = j
+            elif C[max] < C[j] and C[j] < C[prev]:
+                max = j
+        prev = max
+        for j in range(len(allProducts)):
+            if C[max] == C[j]:
+                products.append(allProducts[j])
+                print(C[j])
+                number -= 1
+            if number == 0:
+                break
+    print(C)
+    return products
\ No newline at end of file
diff --git a/product.py b/product.py
new file mode 100644
index 0000000..e2acbe5
--- /dev/null
+++ b/product.py
@@ -0,0 +1,7 @@
+class Product:
+
+    def __init__(self, color, shape, mass, size):
+        self.color = color
+        self.shape = shape
+        self.mass = mass
+        self.size = size
\ No newline at end of file
diff --git a/supply.py b/supply.py
new file mode 100644
index 0000000..673b31a
--- /dev/null
+++ b/supply.py
@@ -0,0 +1,64 @@
+from product import Product
+
+
+def create_data_products():
+    allProducts = []
+
+    product = Product('black', 'rectangle', 51, 'small')
+    allProducts.append(product)
+    product = Product('black', 'rectangle', 51, 'small')
+    allProducts.append(product)
+    product = Product('gold', 'pack', 100, 'big')
+    allProducts.append(product)
+    product = Product('purple', 'rectangle', 100, 'big')
+    allProducts.append(product)
+    product = Product('brown', 'pack', 45, 'small')
+    allProducts.append(product)
+    product = Product('blue', 'rectangle', 50, 'medium')
+    allProducts.append(product)
+    product = Product('blue', 'square', 40, 'small')
+    allProducts.append(product)
+    product = Product('blue', 'rectangle', 35, 'small')
+    allProducts.append(product)
+    product = Product('gold', 'rectangle', 40, 'medium')
+    allProducts.append(product)
+    product = Product('gold', 'rectangle', 50, 'medium')
+    allProducts.append(product)
+    product = Product('brown', 'rectangle', 55, 'medium')
+    allProducts.append(product)
+    product = Product('brown', 'rectangle', 45, 'medium')
+    allProducts.append(product)
+    product = Product('white', 'rectangle', 40, 'medium')
+    allProducts.append(product)
+    product = Product('red', 'rectangle', 50, 'medium')
+    allProducts.append(product)
+    product = Product('blue', 'rectangle', 115, 'big')
+    allProducts.append(product)
+    product = Product('white', 'rectangle', 15, 'small')
+    allProducts.append(product)
+    product = Product('red', 'pack', 70, 'medium')
+    allProducts.append(product)
+    product = Product('orange', 'rectangle', 45, 'medium')
+    allProducts.append(product)
+    product = Product('blue', 'rectangle', 55, 'medium')
+    allProducts.append(product)
+    product = Product('gold', 'rectangle', 120, 'big')
+    allProducts.append(product)
+    product = Product('white', 'rectangle', 120, 'big')
+    allProducts.append(product)
+    product = Product('white', 'jar', 600, 'big')
+    allProducts.append(product)
+    product = Product('white', 'rectangle', 25, 'small')
+    allProducts.append(product)
+    product = Product('brown', 'jar', 500, 'big')
+    allProducts.append(product)
+    product = Product('brown', 'jar', 470, 'big')
+    allProducts.append(product)
+    product = Product('red', 'jar', 250, 'medium')
+    allProducts.append(product)
+    product = Product('black', 'jar', 250, 'medium')
+    allProducts.append(product)
+    product = Product('orange', 'jar', 250, 'medium')
+    allProducts.append(product)
+
+    return allProducts
\ No newline at end of file