120 lines
4.2 KiB
TypeScript
120 lines
4.2 KiB
TypeScript
import { Behavior } from "@Model/Behavior";
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import Group from "@Model/Group";
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import Individual from "@Model/Individual";
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import { Model } from "@Model/Model";
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type IDynamicsBehaviorParameter = {
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mass: "number",
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maxAcceleration: "number",
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maxVelocity: "number",
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resistance: "number"
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}
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type IDynamicsBehaviorEvent = {}
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class Dynamics extends Behavior<IDynamicsBehaviorParameter, IDynamicsBehaviorEvent> {
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public override behaviorId: string = "Dynamics";
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public override behaviorName: string = "$Title";
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public override iconName: string = "Running";
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public override describe: string = "$Intro";
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public override category: string = "$Physics";
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public override parameterOption = {
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mass: { name: "$Mass", type: "number", defaultValue: 1, numberStep: .01, numberMin: .001 },
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maxAcceleration: { name: "$Max.Acceleration", type: "number", defaultValue: 5, numberStep: .1, numberMin: 0 },
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maxVelocity: { name: "$Max.Velocity", type: "number", defaultValue: 10, numberStep: .1, numberMin: 0 },
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resistance: { name: "$Resistance", type: "number", defaultValue: 0.5, numberStep: .1, numberMin: 0 }
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};
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public override finalEffect(individual: Individual, group: Group, model: Model, t: number): void {
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// 计算当前速度
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const currentV = individual.vectorLength(individual.velocity);
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// 计算阻力
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const resistance = currentV * currentV * this.parameter.resistance;
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// 应用阻力
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if (currentV) {
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individual.applyForce(
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(- individual.velocity[0] / currentV) * resistance,
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(- individual.velocity[1] / currentV) * resistance,
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(- individual.velocity[2] / currentV) * resistance
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);
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}
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// 计算加速度
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individual.acceleration[0] = individual.force[0] / this.parameter.mass;
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individual.acceleration[1] = individual.force[1] / this.parameter.mass;
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individual.acceleration[2] = individual.force[2] / this.parameter.mass;
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// 加速度约束
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const lengthA = individual.vectorLength(individual.acceleration);
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if (lengthA > this.parameter.maxAcceleration) {
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individual.acceleration[0] = individual.acceleration[0] * this.parameter.maxAcceleration / lengthA;
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individual.acceleration[1] = individual.acceleration[1] * this.parameter.maxAcceleration / lengthA;
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individual.acceleration[2] = individual.acceleration[2] * this.parameter.maxAcceleration / lengthA;
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}
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// 计算速度
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individual.velocity[0] = individual.velocity[0] + individual.acceleration[0] * t;
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individual.velocity[1] = individual.velocity[1] + individual.acceleration[1] * t;
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individual.velocity[2] = individual.velocity[2] + individual.acceleration[2] * t;
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// 速度约束
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const lengthV = individual.vectorLength(individual.velocity);
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if (lengthV > this.parameter.maxVelocity) {
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individual.velocity[0] = individual.velocity[0] * this.parameter.maxVelocity / lengthV;
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individual.velocity[1] = individual.velocity[1] * this.parameter.maxVelocity / lengthV;
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individual.velocity[2] = individual.velocity[2] * this.parameter.maxVelocity / lengthV;
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}
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// 应用速度
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individual.position[0] = individual.position[0] + individual.velocity[0] * t;
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individual.position[1] = individual.position[1] + individual.velocity[1] * t;
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individual.position[2] = individual.position[2] + individual.velocity[2] * t;
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// 清除受力
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individual.force[0] = 0;
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individual.force[1] = 0;
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individual.force[2] = 0;
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};
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public override terms: Record<string, Record<string, string>> = {
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"$Title": {
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"ZH_CN": "动力学",
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"EN_US": "Dynamics"
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},
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"$Intro": {
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"ZH_CN": "一切可以运动物体的必要行为，执行物理法则。",
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"EN_US": "All necessary behaviors that can move objects and implement the laws of physics."
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},
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"$Mass": {
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"ZH_CN": "质量 (Kg)",
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"EN_US": "Mass (Kg)"
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},
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"$Max.Acceleration": {
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"ZH_CN": "最大加速度 (m/s²)",
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"EN_US": "Maximum acceleration (m/s²)"
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},
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"$Max.Velocity": {
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"ZH_CN": "最大速度 (m/s)",
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"EN_US": "Maximum velocity (m/s)"
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},
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"$Resistance": {
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"ZH_CN": "阻力系数",
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"EN_US": "Resistance coefficient"
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},
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"$Physics": {
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"ZH_CN": "物理",
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"EN_US": "Physics"
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}
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};
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}
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export { Dynamics }; |