268 lines
11 KiB
C#
268 lines
11 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.IO;
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using UnityEngine;
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abstract public class TurtleLSystemEnvironment : TurtleLSystem
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{
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public Environment environment;
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// private LSystemEvaluator evaluator = null;
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// private float nextStep;
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public sbyte shadowStrength;
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public int lookForLightAngle = 35;
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public float lookForLightLength = 2.0f;
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public Matrix4x4 lightDirection(Matrix4x4 transformation, Matrix4x4 resultTransformation, GameObject shape, LSystemNode node)
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{
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int minShadow = 10000;
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Matrix4x4 bestTransformation = transformation;
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int maxShadowTries = 20;
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int shadowRotate = 360 / 20;
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int shadowStrength_ = 0;
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bool clearShape = false;
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if (shape == null)
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{
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clearShape = true;
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shape = new GameObject("ShadowConeShape");
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}
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GameObject instance;
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Matrix4x4 new_transformation = transformation;
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foreach (GameObject gameObject in GameObject.FindGameObjectsWithTag("ShadowCone"))
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{
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DestroyImmediate(gameObject);
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}
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Matrix4x4 objectTransformation = (transformation * resultTransformation);
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int nr_shadow_str = 1;
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if (environment.sendShadowToLSystem)
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{
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}
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bestTransformation = transformation * resultTransformation;
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if (environment.rotateTowardsLight)
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{
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minShadow = shadowStrength_;
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if (shadowStrength_ / nr_shadow_str > 5.0f)
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{
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shadowConeLimiter++;
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// transformation = Matrix4x4.Translate(gameObject.transform.position)*transformation;
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for (int angle = 0; angle <= lookForLightAngle; angle += 10)
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{
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for (int i = 0; i < 360; i += shadowRotate)
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{
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shadowStrength_ = 0;
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for (float length = 0.5f; length < lookForLightLength; length += environment.voxelSize * 0.5f)
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{
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new_transformation = (transformation * (resultTransformation * Matrix4x4.Rotate(Quaternion.Euler(0, i, 0)) * Matrix4x4.Rotate(Quaternion.Euler(0, 0, angle)) * Matrix4x4.Translate(new Vector3(0, length, 0))));
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shadowStrength_ += (int)environment.shadowStrength(new_transformation.ExtractPosition() + transformation.MultiplyPoint(shape.transform.position));
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// if(shadowConeLimiter % 10 == 0)
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// {
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// instance = Instantiate(environment.shape);
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// instance.name = "ShadowCone";
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// instance.tag = "ShadowCone";
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// instance.transform.position = new_transformation.ExtractPosition()+transformation.MultiplyPoint(shape.transform.position);
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// instance.transform.rotation *= transformation.ExtractRotation();
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// }
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}
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if (shadowStrength_ < minShadow)
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{
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minShadow = shadowStrength_;
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bestTransformation = (transformation * (resultTransformation * Matrix4x4.Rotate(Quaternion.Euler(0, i, 0)) * Matrix4x4.Rotate(Quaternion.Euler(0, 0, angle))));
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}
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}
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}
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}
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if (minShadow > 220 * lookForLightLength * 2.0f)
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{
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bestTransformation = Matrix4x4.Translate(new Vector3(0, 0, 0));
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}
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}
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if (clearShape)
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{
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DestroyImmediate(shape);
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}
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return bestTransformation;
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}
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public void evaluate()
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{
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base.evaluate();
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}
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public void evaluateAndPresent()
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{
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evaluate();
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present();
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// Debug.Log(evaluator.lSystemString.ToString().Length);
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//x.name = "aaa";
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//Instantiate(x,Matrix4x4.identity);
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}
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public void loadFile()
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{
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// nextStep = Time.time;
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// clearObjects();
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var sr = new StreamReader(LSystemPath);
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evaluator = LSystemFileParser.parseLSystem(sr);
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sr.Close();
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turtleInterpretation = new Dictionary<string, Func<float[], Tuple<GameObject, Matrix4x4>>>();
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initLiteralInterpretation();
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}
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public void present()
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{
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clearObjects();
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createModelsRecursiveInEnviroment(evaluator.lSystemString, Matrix4x4.Translate(gameObject.transform.position / 2.0f));//Matrix4x4.identity);
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}
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void refreshShadows()
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{
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environment.Reset();
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foreach (GameObject gameObject in GameObject.FindGameObjectsWithTag("LSystemLiteral"))
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{
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// if(!isParentThisGameObject(gameObject))
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// {
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environment.addShadow(gameObject.GetComponent<Transform>().position, shadowStrength);
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// }
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// else
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// {
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// if(isParentThisGameObject(gameObject, 2))
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// {
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// environment.addShadowPoint(gameObject.GetComponent<Transform>().position, 6);
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// }
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// }
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}
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}
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bool isParentThisGameObject(GameObject gameObject, int depth = 3)
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{
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if (gameObject.transform.parent != null)
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{
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if (gameObject.transform.parent.gameObject == this.gameObject)
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{
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return true;
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}
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else
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{
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if (depth >= 0)
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{
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return isParentThisGameObject(gameObject.transform.parent.gameObject, depth - 1);
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}
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}
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}
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return false;
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}
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int objectCounter = 0;
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int shadowConeLimiter = 0;
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public int childrenCount(LSystemNode node, int depth = 3)
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{
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int c = 0;
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if (node.children.Count > 0)
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{
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c += node.children.Count;
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if (depth > 0)
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{
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foreach (LSystemNode child in node.children)
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{
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c += childrenCount(child, depth - 1);
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}
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}
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}
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return c;
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}
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public void createModelsRecursiveInEnviroment(LSystemNode node, Matrix4x4 transformation, int depth = 0)
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{
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// transformation *= Matrix4x4.Translate(gameObject.transform.position);
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while (node != null && objectCounter < 25000)
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{
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Matrix4x4 new_transformation = transformation;
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Func<float[], Tuple<GameObject, Matrix4x4>> interpretation;
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var name = node.literal.name;
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if (turtleInterpretation.TryGetValue(name, out interpretation) || turtleInterpretation.TryGetValue("*.*", out interpretation))
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{
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var result = interpretation(node.literal.values);
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Debug.Log("D: " + node.literal);
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new_transformation = new_transformation * Matrix4x4.Rotate(Quaternion.Euler(UnityEngine.Random.Range(-0.5f, 0.5f), UnityEngine.Random.Range(-0.5f, 0.5f), UnityEngine.Random.Range(-0.5f, 0.5f)));
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new_transformation = lightDirection(new_transformation, result.Item2, result.Item1, node);
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if (new_transformation == Matrix4x4.Translate(new Vector3(0, 0, 0)) && environment.cutBranchesWithMaxShadow)
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{
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Debug.Log(" children " + node.children.Count);
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// node.literal.
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if (childrenCount(node) < 5)
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{
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LSystemNode destroyNode = node;
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if (destroyNode.parent != null)
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{
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destroyNode.parent.children.Remove(node);
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if (destroyNode.parent.mainChild == null)
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{
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destroyNode.parent.mainChild = destroyNode.parent.children[0];
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}
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node = node.mainChild;
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destroyNode = null;
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// DestroyImmediate(instance);
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objectCounter--;
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}
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continue;
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}
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}
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if (result.Item1 != null && new_transformation != Matrix4x4.Translate(new Vector3(0, 0, 0)))
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{
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var instance = this.prepeareGameObject(name, result.Item1, new_transformation);
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environment.addShadow(new_transformation.ExtractPosition() + transformation.MultiplyPoint(result.Item1.transform.position), (sbyte)(shadowStrength / 8.0f));
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}
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environment.addShadow(new_transformation.ExtractPosition() + transformation.ExtractPosition(), (sbyte)(shadowStrength / 8.0f));
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environment.addShadow((new_transformation * Matrix4x4.Translate(new Vector3(0, 1, 0))).ExtractPosition() + transformation.ExtractPosition(), (sbyte)(shadowStrength / 8.0f));
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//remove scale, rather unnecesary
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new_transformation = new_transformation * Matrix4x4.Scale(result.Item2.ExtractScale()).inverse;
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}
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if (node != null)
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{
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List<LSystemNode> children_tmp = new List<LSystemNode>();
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foreach (var child in node.children)
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{
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children_tmp.Add(child);
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}
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foreach (var child in children_tmp)
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{
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if (child != null)
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{
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createModelsRecursiveInEnviroment(child, new_transformation, depth + 1);
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}
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}
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node = node.mainChild;
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}
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transformation = new_transformation;
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}
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}
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private void clearObjects()
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{
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//var objects = Resources.FindObjectsOfTypeAll<GameObject>().Where(obj => obj.name == "Name");
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// foreach (GameObject gameObject in GameObject.FindGameObjectsWithTag("LSystemLiteral")) {
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// DestroyImmediate(gameObject);
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//
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// }
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objectCounter = 0;
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int removed = 1;
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while (removed > 0)
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{
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removed = 0;
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foreach (Transform child in this.gameObject.transform)
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{
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// environment.addShadow(gameObject.GetComponent<Transform>().position, (sbyte)-shadowStrength);
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if (child.gameObject.tag == "LSystemLiteral")
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{
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DestroyImmediate(child.gameObject);
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}
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removed++;
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// GameObject.Destroy(child.gameObject);
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}
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}
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refreshShadows();
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// gameObjects = new List<GameObject>();
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}
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}
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