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删除RangeTool的抛异常部分

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17146 2025-07-12 03:12:26 +08:00 • committed by Light_Quanta
parent e06d4abb3b
commit 970aa5ac86
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GPG key ID: 11A39A1B8C890959
4 changed files with 41 additions and 18 deletions
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8
src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Mk42Entity.java
View file

@ -243,6 +243,10 @@ public class Mk42Entity extends VehicleEntity implements GeoEntity, CannonEntity
try {
Vec3 launchVector = calculateLaunchVector(getEyePosition(), randomPos, 15, -shellGravity, entityData.get(DEPRESSED));
this.look(randomPos);
if (launchVector == null) {
return false;
}
float angle = (float) -getXRotFromVector(launchVector);
if (angle < -85 || angle > 14.9) {
return false;
@ -258,6 +262,10 @@ public class Mk42Entity extends VehicleEntity implements GeoEntity, CannonEntity
Vec3 randomPos = VectorTool.randomPos(new Vec3(entityData.get(TARGET_POS)), entityData.get(RADIUS));
Vec3 launchVector = calculateLaunchVector(getEyePosition(), randomPos, 15, -shellGravity, entityData.get(DEPRESSED));
this.look(randomPos);
if (launchVector == null) {
return;
}
float angle = (float) -getXRotFromVector(launchVector);
if (angle < -85 || angle > 14.9) {
entityData.set(PITCH, angle);

8
src/main/java/com/atsuishio/superbwarfare/entity/vehicle/Mle1934Entity.java
View file

@ -251,6 +251,10 @@ public class Mle1934Entity extends VehicleEntity implements GeoEntity, CannonEnt
try {
Vec3 launchVector = calculateLaunchVector(getEyePosition(), randomPos, 15, -shellGravity, entityData.get(DEPRESSED));
this.look(randomPos);
if (launchVector == null) {
return false;
}
float angle = (float) -getXRotFromVector(launchVector);
if (angle < -30 || angle > 2.7) {
return false;
@ -266,6 +270,10 @@ public class Mle1934Entity extends VehicleEntity implements GeoEntity, CannonEnt
Vec3 randomPos = VectorTool.randomPos(new Vec3(entityData.get(TARGET_POS)), entityData.get(RADIUS));
Vec3 launchVector = calculateLaunchVector(getEyePosition(), randomPos, 15, -shellGravity, entityData.get(DEPRESSED));
this.look(randomPos);
if (launchVector == null) {
return;
}
float angle = (float) -getXRotFromVector(launchVector);
if (angle < -30 || angle > 2.7) {
entityData.set(PITCH, angle);

8
src/main/java/com/atsuishio/superbwarfare/entity/vehicle/MortarEntity.java
View file

@ -248,6 +248,10 @@ public class MortarEntity extends VehicleEntity implements GeoEntity, Container
try {
Vec3 launchVector = calculateLaunchVector(getEyePosition(), randomPos, 13, -0.11, entityData.get(DEPRESSED));
this.look(randomPos);
if (launchVector == null) {
return false;
}
float angle = (float) -getXRotFromVector(launchVector);
if (angle < -89 || angle > -20) {
return false;
@ -263,6 +267,10 @@ public class MortarEntity extends VehicleEntity implements GeoEntity, Container
Vec3 randomPos = VectorTool.randomPos(new Vec3(entityData.get(TARGET_POS)), entityData.get(RADIUS));
Vec3 launchVector = calculateLaunchVector(getEyePosition(), randomPos, 13, -0.11, entityData.get(DEPRESSED));
this.look(randomPos);
if (launchVector == null) {
return;
}
float angle = (float) -getXRotFromVector(launchVector);
if (angle > -89 && angle < -20) {
entityData.set(PITCH, angle);

35
src/main/java/com/atsuishio/superbwarfare/tools/RangeTool.java
View file

@ -2,6 +2,7 @@ package com.atsuishio.superbwarfare.tools;
import net.minecraft.util.Mth;
import net.minecraft.world.phys.Vec3;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collections;
@ -22,7 +23,7 @@ public class RangeTool {
}
// 谢谢DeepSeek
@Nullable
public static Vec3 calculateLaunchVector(Vec3 pos, Vec3 pos2, double velocity, double g, boolean isDepressed) {
double dx = pos2.x - pos.x;
double dy = pos2.y - pos.y;
@ -34,6 +35,7 @@ public class RangeTool {
double c = horizontalDistSq + dy * dy;
List<Double> validT = getDoubles(b, a, c);
if (validT.isEmpty()) return null;
double t;
@ -53,7 +55,7 @@ public class RangeTool {
private static List<Double> getDoubles(double b, double a, double c) {
double discriminant = b * b - 4 * a * c;
if (discriminant < 0) {
throw new IllegalStateException("No valid trajectory: Increase velocity or adjust target");
return List.of();
}
double sqrtDisc = Math.sqrt(discriminant);
@ -64,34 +66,32 @@ public class RangeTool {
if (u1 > 0) validT.add(Math.sqrt(u1));
if (u2 > 0) validT.add(Math.sqrt(u2));
if (validT.isEmpty()) {
throw new IllegalStateException("No positive real solution for flight time");
}
return validT;
}
private static final double TOLERANCE = 1e-3; // 牛顿迭代法的容差
private static final int MAX_ITERATIONS = 50; // 最大迭代次数
/**
* 计算炮弹发射向量
* @param launchPos 炮弹发射位置 (Vec3)
* @param targetPos 目标当前位置 (Vec3)
* @param targetVel 目标速度向量 (Vec3，单位：方块/tick)
*
* @param launchPos 炮弹发射位置 (Vec3)
* @param targetPos 目标当前位置 (Vec3)
* @param targetVel 目标速度向量 (Vec3，单位：方块/tick)
* @param muzzleVelocity 炮弹出膛速度 (标量，单位：方块/tick)
* @return 炮弹的发射向量 (Vec3)，若无法击中则返回预测值
*/
public static Vec3 calculateFiringSolution(Vec3 launchPos, Vec3 targetPos, Vec3 targetVel, double muzzleVelocity, double gravity) {
Vec3 d0 = targetPos.subtract(launchPos); // 位置差向量
double D = d0.lengthSqr(); // |d0|²
double E = d0.dot(targetVel); // d0 · u
double F = targetVel.lengthSqr(); // |u|²
double dSqr = d0.lengthSqr(); // |d0|²
double dot = d0.dot(targetVel); // d0 · u
double absSqr = targetVel.lengthSqr(); // |u|²
// 计算四次方程的系数
double a = 0.25 * gravity * gravity;
double b = gravity * targetVel.y;
double c = F + gravity * d0.y - muzzleVelocity * muzzleVelocity;
double d = 2 * E;
double e = D;
double c = absSqr + gravity * d0.y - muzzleVelocity * muzzleVelocity;
double d = 2 * dot;
// 牛顿迭代法求解时间 t
double t = estimateInitialTime(d0, muzzleVelocity); // 初始估计值
@ -103,7 +103,7 @@ public class RangeTool {
double t4 = t3 * t;
// 计算函数值 f(t) = a*t⁴ + b*t³ + c*t² + d*t + e
double f = a * t4 + b * t3 + c * t2 + d * t + e;
double f = a * t4 + b * t3 + c * t2 + d * t + dSqr;
if (Math.abs(f) < TOLERANCE) break;
// 计算导数值 f'(t) = 4a*t³ + 3b*t² + 2c*t + d
@ -121,7 +121,7 @@ public class RangeTool {
}
// 检查解的有效性
if (t > 0 && !Double.isNaN(t)) {
if (t > 0) {
double invT = 1.0 / t;
// 计算速度分量
double vx = d0.x * invT + targetVel.x;
@ -130,7 +130,7 @@ public class RangeTool {
return new Vec3(vx, vy, vz);
} else {
// 备选方案：线性预测目标位置
double fallbackT = Math.sqrt(D) / muzzleVelocity;
double fallbackT = Math.sqrt(dSqr) / muzzleVelocity;
Vec3 predictedPos = targetPos.add(targetVel.scale(fallbackT));
Vec3 toPredicted = predictedPos.subtract(launchPos);
double vy = (toPredicted.y + 0.5 * gravity * fallbackT * fallbackT) / fallbackT;
@ -148,5 +148,4 @@ public class RangeTool {
private static double estimateInitialTime(Vec3 d0, double velocity) {
return d0.length() / velocity;
}
}