[WIP] algae, reeds, mycelium, coral working
+ lots of cleanup, reorganizing
This commit is contained in:
octarine-noise
205
src/main/kotlin/mods/betterfoliage/model/Quads.kt
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205
src/main/kotlin/mods/betterfoliage/model/Quads.kt
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package mods.betterfoliage.model
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import mods.betterfoliage.util.Double3
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import mods.betterfoliage.util.Rotation
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import mods.betterfoliage.util.boxFaces
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import mods.betterfoliage.util.get
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import mods.betterfoliage.util.minmax
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import mods.betterfoliage.util.nearestAngle
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import mods.betterfoliage.util.rotate
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import mods.betterfoliage.util.times
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import mods.betterfoliage.util.vec
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import net.minecraft.client.renderer.texture.TextureAtlasSprite
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import net.minecraft.util.Direction
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import java.lang.Math.max
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import java.lang.Math.min
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import java.util.Random
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import kotlin.math.cos
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import kotlin.math.sin
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/**
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* Vertex UV coordinates
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*
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* Zero-centered: coordinates fall between (-0.5, 0.5) (inclusive)
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*/
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data class UV(val u: Double, val v: Double) {
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companion object {
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val topLeft = UV(-0.5, -0.5)
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val topRight = UV(0.5, -0.5)
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val bottomLeft = UV(-0.5, 0.5)
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val bottomRight = UV(0.5, 0.5)
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}
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val rotate: UV get() = UV(v, -u)
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fun rotate(n: Int) = when (n % 4) {
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0 -> copy()
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1 -> UV(v, -u)
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2 -> UV(-u, -v)
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else -> UV(-v, u)
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}
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fun clamp(minU: Double = -0.5, maxU: Double = 0.5, minV: Double = -0.5, maxV: Double = 0.5) =
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UV(u.minmax(minU, maxU), v.minmax(minV, maxV))
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fun mirror(mirrorU: Boolean, mirrorV: Boolean) = UV(if (mirrorU) -u else u, if (mirrorV) -v else v)
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}
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/**
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* Model vertex
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*
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* @param[xyz] x, y, z coordinates
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* @param[uv] u, v coordinates
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* @param[aoShader] [ModelLighter] instance to use with AO rendering
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* @param[flatShader] [ModelLighter] instance to use with non-AO rendering
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*/
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data class Vertex(
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val xyz: Double3 = Double3(0.0, 0.0, 0.0),
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val uv: UV = UV(0.0, 0.0),
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val color: Color = Color.white,
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val normal: Double3? = null
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)
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data class Color(val alpha: Int, val red: Int, val green: Int, val blue: Int) {
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constructor(combined: Int) : this(
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combined shr 24 and 255,
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combined shr 16 and 255,
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combined shr 8 and 255,
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combined and 255
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)
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val asInt get() = (alpha shl 24) or (red shl 16) or (green shl 8) or blue
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operator fun times(f: Float) = Color(
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alpha,
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(f * red.toFloat()).toInt().coerceIn(0 until 256),
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(f * green.toFloat()).toInt().coerceIn(0 until 256),
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(f * blue.toFloat()).toInt().coerceIn(0 until 256)
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)
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companion object {
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val white get() = Color(255, 255, 255, 255)
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}
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}
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data class HSB(var hue: Float, var saturation: Float, var brightness: Float) {
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companion object {
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fun fromColor(color: Int): HSB {
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val hsbVals = java.awt.Color.RGBtoHSB((color shr 16) and 255, (color shr 8) and 255, color and 255, null)
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return HSB(hsbVals[0], hsbVals[1], hsbVals[2])
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}
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}
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val asColor: Int get() = java.awt.Color.HSBtoRGB(hue, saturation, brightness)
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}
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/**
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* Intermediate representation of model quad
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* Immutable, double-precision
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* Zero-centered (both XYZ and UV) coordinates for simpler rotation/mirroring
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*/
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data class Quad(
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val v1: Vertex, val v2: Vertex, val v3: Vertex, val v4: Vertex,
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val sprite: TextureAtlasSprite? = null,
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val colorIndex: Int = -1,
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val face: Direction? = null
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) {
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val verts = arrayOf(v1, v2, v3, v4)
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inline fun transformV(trans: (Vertex) -> Vertex): Quad = transformVI { vertex, idx -> trans(vertex) }
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inline fun transformVI(trans: (Vertex, Int) -> Vertex): Quad = copy(
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v1 = trans(v1, 0), v2 = trans(v2, 1), v3 = trans(v3, 2), v4 = trans(v4, 3)
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)
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val normal: Double3 get() = (v2.xyz - v1.xyz).cross(v4.xyz - v1.xyz).normalize
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fun move(trans: Double3) = transformV { it.copy(xyz = it.xyz + trans) }
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fun move(trans: Pair<Double, Direction>) = move(Double3(trans.second) * trans.first)
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fun scale(scale: Double) = transformV { it.copy(xyz = it.xyz * scale) }
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fun scale(scale: Double3) =
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transformV { it.copy(xyz = Double3(it.xyz.x * scale.x, it.xyz.y * scale.y, it.xyz.z * scale.z)) }
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fun rotate(rot: Rotation) =
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transformV { it.copy(xyz = it.xyz.rotate(rot), normal = it.normal?.rotate(rot)) }.copy(face = face?.rotate(rot))
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fun rotateZ(angle: Double) = transformV {
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it.copy(
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xyz = Double3(
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it.xyz.x * cos(angle) + it.xyz.z * sin(angle),
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it.xyz.y,
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it.xyz.z * cos(angle) - it.xyz.x * sin(angle)
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),
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normal = it.normal?.let { normal ->
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Double3(
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normal.x * cos(angle) + normal.z * sin(angle),
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normal.y,
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normal.z * cos(angle) - normal.x * sin(angle)
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)
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}
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)
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}
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fun scaleUV(scale: Double) = transformV { it.copy(uv = UV(it.uv.u * scale, it.uv.v * scale)) }
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fun rotateUV(n: Int) = transformV { it.copy(uv = it.uv.rotate(n)) }
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fun clampUV(minU: Double = -0.5, maxU: Double = 0.5, minV: Double = -0.5, maxV: Double = 0.5) =
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transformV { it.copy(uv = it.uv.clamp(minU, maxU, minV, maxV)) }
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fun mirrorUV(mirrorU: Boolean, mirrorV: Boolean) = transformV { it.copy(uv = it.uv.mirror(mirrorU, mirrorV)) }
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fun scrambleUV(random: Random, canFlipU: Boolean, canFlipV: Boolean, canRotate: Boolean) = this
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.mirrorUV(canFlipU && random.nextBoolean(), canFlipV && random.nextBoolean())
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.let { if (canRotate) it.rotateUV(random.nextInt(4)) else it }
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fun sprite(sprite: TextureAtlasSprite) = copy(sprite = sprite)
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fun color(color: Color) = transformV { it.copy(color = color) }
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fun color(color: Int) = transformV { it.copy(color = Color(color)) }
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fun colorIndex(colorIndex: Int) = copy(colorIndex = colorIndex)
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fun colorAndIndex(color: Color?) = color(color ?: Color.white).colorIndex(if (color == null) 0 else -1)
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fun face() = face ?: nearestAngle(normal, Direction.values().toList()) { it.vec }.first
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val flipped: Quad get() = Quad(v4, v3, v2, v1, sprite, colorIndex)
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fun cycleVertices(n: Int) = when (n % 4) {
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1 -> Quad(v2, v3, v4, v1)
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2 -> Quad(v3, v4, v1, v2)
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3 -> Quad(v4, v1, v2, v3)
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else -> this.copy()
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}
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companion object {
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fun mix(first: Quad, second: Quad, vertexFactory: (Vertex, Vertex) -> Vertex) = Quad(
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v1 = vertexFactory(first.v1, second.v1),
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v2 = vertexFactory(first.v2, second.v2),
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v3 = vertexFactory(first.v3, second.v3),
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v4 = vertexFactory(first.v4, second.v4)
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)
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fun verticalRectangle(x1: Double, z1: Double, x2: Double, z2: Double, yBottom: Double, yTop: Double) = Quad(
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Vertex(Double3(x1, yBottom, z1), UV.bottomLeft),
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Vertex(Double3(x2, yBottom, z2), UV.bottomRight),
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Vertex(Double3(x2, yTop, z2), UV.topRight),
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Vertex(Double3(x1, yTop, z1), UV.topLeft)
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)
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fun horizontalRectangle(x1: Double, z1: Double, x2: Double, z2: Double, y: Double): Quad {
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val xMin = min(x1, x2);
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val xMax = max(x1, x2)
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val zMin = min(z1, z2);
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val zMax = max(z1, z2)
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return Quad(
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Vertex(Double3(xMin, y, zMin), UV.topLeft),
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Vertex(Double3(xMin, y, zMax), UV.bottomLeft),
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Vertex(Double3(xMax, y, zMax), UV.bottomRight),
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Vertex(Double3(xMax, y, zMin), UV.topRight)
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)
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}
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fun faceQuad(face: Direction): Quad {
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val base = face.vec * 0.5
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val top = boxFaces[face].top * 0.5
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val left = boxFaces[face].left * 0.5
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return Quad(
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Vertex(base + top + left, UV.topLeft),
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Vertex(base - top + left, UV.bottomLeft),
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Vertex(base - top - left, UV.bottomRight),
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Vertex(base + top - left, UV.topRight)
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)
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}
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}
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}
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