forked from andkok/MWS_2021
290 lines
11 KiB
C#
290 lines
11 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace ConsoleLSystem {
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public class LSystemNodeLiteralVariable : LSystemNodeLiteral {
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public Dictionary<string, int> variableIndex { get; }
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public LSystemNodeLiteralVariable(string name, int values_number, Dictionary<string, int> variableIndex) : base(name, values_number) {
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this.variableIndex = variableIndex;
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}
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}
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public class LSystemNodeGenerator : LSystemNode {
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MathExpression[] math_expressions;
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public LSystemNodeGenerator(string name, int arguments) : base(new LSystemNodeLiteral(name, arguments)) {
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}
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public void fillArguments(MathExpression[] math_expressions) {
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this.math_expressions = math_expressions;
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}
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public LSystemNode eval(float[] values) {
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var literal = new LSystemNodeLiteral(this.literal.name, this.literal.values_number);
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for (int i = 0; i < literal.values_number; i++) {
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literal.values[i] = math_expressions[i].eval(values);
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}
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var result = new LSystemNode(literal);
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foreach (LSystemNodeGenerator child in children) {
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var _child = child.eval(values);
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_child.parent = result;
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result.children.Add(_child);
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}
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if (mainChild != null) {
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var _mainChild = ((LSystemNodeGenerator)mainChild).eval(values);
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_mainChild.parent = result;
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result.mainChild = _mainChild;
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}
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else {
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result.mainChild = null;
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}
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return result;
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}
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}
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abstract public class LSystemRule {
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abstract public bool is_aplicable(LSystemNode processed_node);
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abstract public LSystemNode rewrite(LSystemNode processed_node);
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}
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public class LSystemRuleBasic : LSystemRule {
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LSystemNodeLiteral input;// { get; }
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LSystemNode output;
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public LSystemRuleBasic(LSystemNodeLiteral input, LSystemNode output) {
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this.input = input;
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this.output = output;
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}
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override public bool is_aplicable(LSystemNode processed_node) {
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if (processed_node.literal == input) {
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return true;
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}
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else {
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return false;
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}
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}
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override public LSystemNode rewrite(LSystemNode processed_node) {
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if (is_aplicable(processed_node)) {
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return output.deep_copy();
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}
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else {
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return new LSystemNode(processed_node.literal);
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}
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}
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}
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public class LSystemRuleParametric : LSystemRule {
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LSystemNodeLiteralVariable predecesor;// { get; }
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LSystemNodeGenerator consequent;
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MathExpressionComparison[] conditions;
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public LSystemRuleParametric(LSystemNodeLiteralVariable predecesor, MathExpressionComparison[] conditions, LSystemNodeGenerator consequent) {
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this.predecesor = predecesor;
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this.consequent = consequent;
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this.conditions = conditions;
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}
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public override bool is_aplicable(LSystemNode processed_node) {
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if (processed_node.literal.name != predecesor.name || processed_node.literal.values_number != predecesor.values_number) {
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return false;
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}
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foreach (var condition in conditions) {
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if (!condition.eval(processed_node.literal.values)) {
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return false;
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}
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}
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return true;
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}
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public override LSystemNode rewrite(LSystemNode processed_node) {
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if (is_aplicable(processed_node)) {
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return consequent.eval(processed_node.literal.values);
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}
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else {
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return new LSystemNode(processed_node.literal);
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}
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}
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}
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public class LSystemRuleParametricStochastic : LSystemRule {
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protected LSystemNodeLiteralVariable predecesor;// { get; }
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protected LSystemNodeGenerator[] consequents;
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protected float[] probabilities;
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protected MathExpressionComparison[] conditions;
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protected Random random;
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public LSystemRuleParametricStochastic(LSystemNodeLiteralVariable predecesor, MathExpressionComparison[] conditions, LSystemNodeGenerator[] consequents, float[] probabilities) {
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this.predecesor = predecesor;
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this.consequents = consequents;
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this.conditions = conditions;
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float probabilities_sum = 0;
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foreach (var probability in probabilities) { probabilities_sum += probability; }
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float acumulator = 0;
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this.probabilities = new float[consequents.Length];
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for (int i = 0; i < consequents.Length; i++) {
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var probability = probabilities[i] / probabilities_sum;
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this.probabilities[i] = probability + acumulator;
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acumulator += probability;
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}
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random = new Random();
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}
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public LSystemRuleParametricStochastic(LSystemNodeLiteralVariable predecesor, MathExpressionComparison[] conditions, LSystemNodeGenerator consequent) {
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this.predecesor = predecesor;
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this.consequents = new LSystemNodeGenerator[] { consequent };
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this.conditions = conditions;
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float probabilities_sum = 0;
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probabilities = new float[1] { 1 };
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random = new Random();
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}
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public override bool is_aplicable(LSystemNode processed_node) {
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if (processed_node.literal.name != predecesor.name || processed_node.literal.values_number != predecesor.values_number) {
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return false;
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}
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foreach (var condition in conditions) {
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if (!condition.eval(processed_node.literal.values)) {
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return false;
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}
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}
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return true;
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}
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public override LSystemNode rewrite(LSystemNode processed_node) {
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var result = random.NextDouble();
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int consequent_index = 0;
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for (int i = 0; i < probabilities.Length; i++) {
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if (result < probabilities[i]) {
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consequent_index = i;
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break;
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}
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}
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if (is_aplicable(processed_node)) {
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return consequents[consequent_index].eval(processed_node.literal.values);
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}
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else {
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return new LSystemNode(processed_node.literal);
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}
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}
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}
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public class LSystemContext {
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public LSystemNodeLiteral parent { get; set; }
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public LSystemNodeLiteral child { get; set; }
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public LSystemNodeLiteral mid { get; set; }
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bool isPreceding = false;
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bool isSucceeding = false;
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public LSystemContext(LSystemNodeLiteral parent, LSystemNodeLiteral child) {
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this.parent = parent;
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this.child = child;
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this.isPreceding = true;
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this.isSucceeding = true;
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}
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public LSystemContext() {
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}
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public void setOnlyPreceding(LSystemNodeLiteral parent) {
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this.parent = parent;
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this.mid = mid;
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this.isPreceding = true;
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this.isSucceeding = false;
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}
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public void setOnlySucceeding(LSystemNodeLiteral child) {
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this.child = child;
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this.isPreceding = false;
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this.isSucceeding = true;
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}
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public bool isAplicable(LSystemNode node,out float[] variables) {
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var variables_list = new List<float>();
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if (isPreceding && parent != node.parent.literal) {
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variables = new float[0];
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return false;
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}
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if (isPreceding) {
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variables_list.AddRange(node.parent.literal.values);
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}
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variables_list.AddRange(node.literal.values);
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if (isSucceeding) {
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var result = false;
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LSystemNodeLiteral childLiteral;
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foreach(var child in node.getAllChildren()) {
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if (child.literal == this.child) {
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childLiteral = child.literal;
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result = true;
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variables_list.AddRange(child.literal.values);
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break;
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}
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}
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if (!result) {
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variables = new float[0];
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return false;
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}
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}
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variables = variables_list.ToArray();
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return true;
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}
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}
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public class LSystemRuleParametricStochasticContext : LSystemRuleParametricStochastic {
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LSystemContext context;
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public LSystemRuleParametricStochasticContext(LSystemNodeLiteralVariable predecesor, MathExpressionComparison[] conditions, LSystemNodeGenerator[] consequents, float[] probabilities, LSystemContext context) : base(predecesor, conditions, consequents, probabilities) {
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this.context = context;
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}
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public LSystemRuleParametricStochasticContext(LSystemNodeLiteralVariable predecesor, MathExpressionComparison[] conditions, LSystemNodeGenerator consequent, LSystemContext context) : base(predecesor, conditions, consequent) {
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this.context = context;
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}
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public override bool is_aplicable(LSystemNode processed_node) {
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if (processed_node.literal.name != predecesor.name || processed_node.literal.values_number != predecesor.values_number) {
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return false;
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}
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var variables = new float[0];
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if (!context.isAplicable(processed_node, out variables)) {
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return false;
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}
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foreach (var condition in conditions) {
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if (!condition.eval(variables)) {
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return false;
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}
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}
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return true;
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}
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bool is_aplicable(LSystemNode processed_node, out float[] variables) {
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variables = new float[0];
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if (processed_node.literal.name != predecesor.name || processed_node.literal.values_number != predecesor.values_number) {
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return false;
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}
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if (!context.isAplicable(processed_node, out variables)) {
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return false;
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}
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foreach (var condition in conditions) {
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if (!condition.eval(variables)) {
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return false;
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}
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}
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return true;
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}
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public override LSystemNode rewrite(LSystemNode processed_node) {
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var result = random.NextDouble();
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int consequent_index = 0;
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for (int i = 0; i < probabilities.Length; i++) {
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if (result < probabilities[i]) {
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consequent_index = i;
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}
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}
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float[] variables;
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if (is_aplicable(processed_node, out variables)) {
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return consequents[consequent_index].eval(variables);
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}
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else {
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return new LSystemNode(processed_node.literal);
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}
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}
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}
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}
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