Intelligence based max_grades put back.

locations/_difficulty.qsrc

@@ -61,5 +61,22 @@ if $ARGS[0] = 'spendmoneystring':
 end &! --- spendmoneystring ---
 
 
+!! following function returns the basic adjustment for max_grades.
+!! hardcore: (115 * pcs_intel)/100
+!! realistic: 133
+!! relaxed: 155
+!! easy peasy: 185
+!! use func('_difficulty','getmaxgrades')
+if $ARGS[0] = 'getmaxgrades':
+	if difficulty = 1 : max_grades = (pcs_intel * 185) / 100
+	if difficulty = 2 : max_grades = (pcs_intel * 155) / 100
+	if difficulty = 3 : max_grades = (pcs_intel * 133) / 100
+	if difficulty = 4 : max_grades = (pcs_intel * 115) / 100
+
+	if max_grades > 100: max_grades = 100
+	
+end &! --- getexpadj ---
+
+
 --- _difficulty ---------------------------------