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/*
* SPDX-FileCopyrightText: 2023 Linnea Gräf <nea@nea.moe>
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
package moe.nea.firmament.features.fishing
import kotlin.math.abs
import kotlin.math.absoluteValue
import kotlin.math.atan2
import kotlin.math.cos
import kotlin.math.min
import kotlin.math.sin
import kotlin.math.sqrt
import kotlin.time.Duration.Companion.seconds
import net.minecraft.entity.projectile.FishingBobberEntity
import net.minecraft.particle.ParticleTypes
import net.minecraft.util.math.MathHelper
import net.minecraft.util.math.Vec3d
import moe.nea.firmament.Firmament
import moe.nea.firmament.events.ParticleSpawnEvent
import moe.nea.firmament.events.WorldReadyEvent
import moe.nea.firmament.events.WorldRenderLastEvent
import moe.nea.firmament.features.FirmamentFeature
import moe.nea.firmament.features.debug.DebugView
import moe.nea.firmament.gui.config.ManagedConfig
import moe.nea.firmament.util.MC
import moe.nea.firmament.util.TimeMark
import moe.nea.firmament.util.render.RenderInWorldContext.Companion.renderInWorld
object FishingWarning : FirmamentFeature {
override val identifier: String
get() = "fishing-warning"
object TConfig : ManagedConfig("fishing-warning") {
// Display a warning when you are about to hook a fish
val displayWarning by toggle("display-warning") { false }
val highlightWakeChain by toggle("highlight-wake-chain") { false }
}
override val config: ManagedConfig get() = TConfig
data class WakeChain(
val delta: Vec3d,
val momentum: Vec3d,
val lastContinued: TimeMark,
)
val chains = mutableListOf<WakeChain>()
private fun areAnglesClose(a: Double, b: Double, tolerance: Double): Boolean {
var dist = (a - b).absoluteValue
if (180 < dist) dist = 360 - dist;
return dist <= tolerance
}
private fun calculateAngleFromOffsets(xOffset: Double, zOffset: Double): Double {
// See also: Vanilla 1.8.9 Fishing particle code.
var angleX = Math.toDegrees(Math.acos(xOffset / 0.04))
var angleZ = Math.toDegrees(Math.asin(zOffset / 0.04))
if (xOffset < 0) {
// Old: angleZ = 180 - angleZ;
angleZ = 180 - angleZ
}
if (zOffset < 0) {
angleX = 360 - angleX
}
angleX %= 360.0
angleZ %= 360.0
if (angleX < 0) angleX += 360.0
if (angleZ < 0) angleZ += 360.0
var dist = angleX - angleZ
if (dist < -180) dist += 360.0
if (dist > 180) dist -= 360.0
return Math.toDegrees(Math.atan2(xOffset, zOffset))
return angleZ + dist / 2 + 180
}
val π = Math.PI
val τ = Math.PI * 2
private fun toDegrees(d: Double) = Math.toDegrees(d).mod(360.0)
private fun toRadians(d: Double) = Math.toRadians(d).mod(τ)
fun isHookPossible(hook: FishingBobberEntity, particlePos: Vec3d, angle1: Double, angle2: Double): Boolean {
val dx = particlePos.x - hook.trackedPosition.withDelta(0, 0, 0).x
val dz = particlePos.z - hook.trackedPosition.withDelta(0, 0, 0).z
val dist = sqrt(dx * dx + dz * dz)
if (dist < 0.2) return true
val tolerance = toDegrees(atan2(0.03125, dist)) * 1.5
val angleToHook = toDegrees(atan2(dz, dx))
return areAnglesClose(angle1, angleToHook, tolerance) || areAnglesClose(angle2, angleToHook, tolerance)
}
val recentParticles = mutableListOf<Pair<Vec3d, TimeMark>>()
data class Candidate(
val angle1: Double,
val angle2: Double,
val hookOrigin: Vec3d,
val position: Vec3d,
val timeMark: TimeMark = TimeMark.now()
)
val recentCandidates = mutableListOf<Candidate>()
private fun onParticleSpawn(event: ParticleSpawnEvent) {
if (event.particleEffect.type != ParticleTypes.FISHING) return
if (!(abs(event.offset.y - 0.01f) < 0.001f)) return
val hook = MC.player?.fishHook ?: return
val actualOffset = event.offset
val candidate1 = calculateAngleFromOffsets(-actualOffset.x, (-actualOffset.z))
val candidate2 = calculateAngleFromOffsets(actualOffset.x, actualOffset.z)
recentCandidates.add(Candidate(candidate1, candidate2, hook.trackedPosition.withDelta(0, 0, 0), event.position))
if (isHookPossible(hook, event.position, candidate1, candidate2)) {
recentParticles.add(Pair(event.position, TimeMark.now()))
}
}
override fun onLoad() {
ParticleSpawnEvent.subscribe(::onParticleSpawn)
WorldReadyEvent.subscribe {
recentParticles.clear()
}
WorldRenderLastEvent.subscribe {
recentParticles.removeIf { it.second.passedTime() > 5.seconds }
recentCandidates.removeIf { it.timeMark.passedTime() > 5.seconds }
renderInWorld(it) {
color(0f, 0f, 1f, 1f)
recentParticles.forEach {
tinyBlock(it.first, 0.1F)
}
if (Firmament.DEBUG) {
recentCandidates.forEach {
color(1f, 1f, 0f, 1f)
line(it.hookOrigin, it.position)
color(1f, 0f, 0f, 1f)
fun P(yaw: Double) = Vec3d(cos(yaw), 0.0, sin(yaw))
line(
it.position,
P(π - toRadians(it.angle1)).multiply(5.0).add(it.position)
)
color(0f, 1f, 0f, 1f)
line(
it.position,
P(π - toRadians(it.angle2)).multiply(5.0).add(it.position)
)
val tolerance = (atan2(0.03125, it.position.distanceTo(it.hookOrigin))).absoluteValue * 1.5
val diff = it.hookOrigin.subtract(it.position)
val rd = atan2(diff.z, diff.x).mod(τ)
color(0.8f, 0f, 0.8f, 1f)
DebugView.showVariable("tolerance", tolerance)
DebugView.showVariable("angle1Rad", toRadians(180 - it.angle1))
DebugView.showVariable("angle1Diff", (toRadians(it.angle1) - rd).mod(τ))
DebugView.showVariable("angle1Deg", it.angle1.mod(360.0))
DebugView.showVariable("angle2Rad", toRadians(180 - it.angle2))
DebugView.showVariable("angle2Deg", it.angle2.mod(360.0))
DebugView.showVariable("angle2Diff", (toRadians(it.angle2) - rd).mod(τ))
DebugView.showVariable("rd", rd)
DebugView.showVariable("minT", (rd + tolerance).mod(τ))
DebugView.showVariable("maxT", (rd - tolerance).mod(τ))
DebugView.showVariable(
"passes",
if (min(
(rd - toRadians(180 - it.angle2)).mod(τ),
(rd - toRadians(180 - it.angle1)).mod(τ)
) < tolerance
) {
"§aPasses"
} else {
"§cNo Pass"
}
)
line(it.position, P(rd + tolerance).add(it.position))
line(it.position, P(rd - tolerance).add(it.position))
}
color(0.8F, 0.8F, 0.8f, 1f)
val fishHook = MC.player?.fishHook
if (fishHook != null)
tinyBlock(fishHook.trackedPosition.withDelta(0, 0, 0), 0.2f)
}
}
}
}
}
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