//加力
public float3 CastForce(ref float3 position, ref CubeComponent b, ForceMode forceMode)
{
float3 forceDir = (position - b.position);
float d = math.length(forceDir);
d = math.clamp(d, 1, 25);
forceDir = math.normalize(forceDir);
// F = GMm / d^2
float strength = (G * Mass * b.mass) / (d * d);
forceDir *= strength;
return((forceMode == ForceMode.PUSH) ? forceDir * -1 : forceDir);
}
protected override void OnUpdate()
{
if (MusicController.Instance.isPressAndWaitGenerate)
{
MusicController.Instance.isPressAndWaitGenerate = false;
var entityManager = World.Active.GetOrCreateManager <EntityManager>();
for (int i = 0; i < 500 * MusicController.Instance.m_currBeatScore; i++)
{
Entity cube = entityManager.CreateEntity(CubeArchetype);
float3 randomVel = UnityEngine.Random.onUnitSphere;
//初始化随机点
float3 initialPosition = new float3(randomVel.x, 0f, randomVel.z);
;
//设置给实体
entityManager.SetComponentData(cube, new Position {
Value = initialPosition
});
//cube属性
CubeComponent c = new CubeComponent
{
position = initialPosition,
radius = 1,
mass = 1,
maxLength = 20,
velocity = new float3(randomVel.x * 100f, 0f, randomVel.z * 100f),
acceration = float3.zero,
isInEnemy = 0
};
entityManager.SetComponentData(cube, c);
//边界
float4 v = new float4(-960f, -540f, 960f, 540f);
//力属性初始化
ForceComponent f = new ForceComponent {
Mass = 70f, bound = v, frictionCoe = 0.1f
};
entityManager.SetComponentData(cube, f);
HealthComponent h = new HealthComponent {
healthValue = 2, currColor = 0
};
//生命初始化
entityManager.SetComponentData(cube, h);
//这里为什么不用Add，因为从Entities中Add或Remove ComponentData会使其archetype改变，大量操作会影响性能
//entityManager.AddSharedComponentData(cube, cubeRenderer);
//共享数据，用于可以共享，且不经常改变的component
entityManager.SetSharedComponentData(cube, cubeRenderer);
}
}
//for test
if (Input.GetKeyDown(KeyCode.E) || (Input.touchCount >= 3 && Input.touches[0].phase == TouchPhase.Ended))
{
var entityManager = World.Active.GetOrCreateManager <EntityManager>();
for (int i = 0; i < 10000; i++)
{
Entity cube = entityManager.CreateEntity(CubeArchetype);
//初始化随机点
float3 initialPosition = new float3(UnityEngine.Random.Range(-960f, 960f), 0f, UnityEngine.Random.Range(-540f, 540f));
;
//设置给实体
entityManager.SetComponentData(cube, new Position {
Value = initialPosition
});
//cube属性
CubeComponent c = new CubeComponent
{
position = initialPosition,
radius = 1,
mass = 1,
maxLength = 20,
velocity = Vector3.zero,
acceration = Vector3.zero,
isInEnemy = 0
};
entityManager.SetComponentData(cube, c);
//边界
float4 v = new float4(-960f, -540f, 960f, 540f);
//力属性初始化
ForceComponent f = new ForceComponent {
Mass = 70f, bound = v, frictionCoe = 0.1f
};
entityManager.SetComponentData(cube, f);
HealthComponent h = new HealthComponent {
healthValue = 2, currColor = 0
};
//生命初始化
entityManager.SetComponentData(cube, h);
entityManager.SetSharedComponentData(cube, cubeRenderer);
}
}
}