90 lines
2.8 KiB
C#
90 lines
2.8 KiB
C#
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using UnityEngine;
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using System.Collections;
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public class OceanAdvanced : MonoBehaviour
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{
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class Wave
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{
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public float waveLength { get; private set; }
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public float speed { get; private set; }
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public float amplitude { get; private set; }
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public float sharpness { get; private set; }
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public float frequency { get; private set; }
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public float phase { get; private set; }
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public Vector2 direction { get; private set; }
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public Wave(float waveLength, float speed, float amplitude, float sharpness, Vector2 direction)
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{
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this.waveLength = waveLength;
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this.speed = speed;
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this.amplitude = amplitude;
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this.sharpness = sharpness;
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this.direction = direction.normalized;
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frequency = (2 * Mathf.PI) / waveLength;
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phase = frequency * speed;
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}
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};
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public Material ocean;
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public Light sun;
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private int interaction_id = 0;
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private Vector4[] interactions = new Vector4[NB_INTERACTIONS];
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const int NB_WAVE = 5;
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const int NB_INTERACTIONS = 64;
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static Wave[] waves =
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{
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new Wave(99, 1.0f, 1.4f, 0.9f, new Vector2(1.0f, 0.2f)),
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new Wave(60, 1.2f, 0.8f, 0.5f, new Vector2(1.0f, 3.0f)),
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new Wave(20, 3.5f, 0.4f, 0.8f, new Vector2(2.0f, 4.0f)),
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new Wave(30, 2.0f, 0.4f, 0.4f, new Vector2(-1.0f, 0.0f)),
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new Wave(10, 3.0f, 0.05f, 0.9f,new Vector2(-1.0f, 1.2f))
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};
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void Awake()
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{
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Vector4[] v_waves = new Vector4[NB_WAVE];
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Vector4[] v_waves_dir = new Vector4[NB_WAVE];
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for (int i = 0; i < NB_WAVE; i++)
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{
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v_waves[i] = new Vector4(waves[i].frequency, waves[i].amplitude, waves[i].phase, waves[i].sharpness);
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v_waves_dir[i] = new Vector4(waves[i].direction.x, waves[i].direction.y, 0, 0);
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}
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ocean.SetVectorArray("waves_p", v_waves);
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ocean.SetVectorArray("waves_d", v_waves_dir);
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for (int i = 0; i < NB_INTERACTIONS; i++)
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interactions[i].w = 500.0F;
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ocean.SetVectorArray("interactions", interactions);
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ocean.SetVector("world_light_dir", -sun.transform.forward);
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}
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void FixedUpdate()
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{
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ocean.SetVector("world_light_dir", -sun.transform.forward);
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ocean.SetVector("sun_color", new Vector4(sun.color.r, sun.color.g, sun.color.b, 0.0F));
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}
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public void RegisterInteraction(Vector3 pos, float strength)
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{
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interactions[interaction_id].x = pos.x;
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interactions[interaction_id].y = pos.z;
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interactions[interaction_id].z = strength;
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interactions[interaction_id].w = Time.time;
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ocean.SetVectorArray("interactions", interactions);
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interaction_id = (interaction_id + 1) % NB_INTERACTIONS;
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}
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static public float GetWaterHeight(Vector3 p)
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{
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float height = 0;
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for (int i = 0; i < NB_WAVE; i++)
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height += waves[i].amplitude * Mathf.Sin(Vector2.Dot(waves[i].direction, new Vector2(p.x, p.z)) * waves[i].frequency + Time.time * waves[i].phase);
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return height;
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}
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}
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