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| 1 | +package se.llbit.chunky.model; |
| 2 | + |
| 3 | +import se.llbit.chunky.resources.Texture; |
| 4 | +import se.llbit.math.Quad; |
| 5 | +import se.llbit.math.Ray; |
| 6 | +import se.llbit.math.Vector3; |
| 7 | +import se.llbit.math.Vector4; |
| 8 | + |
| 9 | +public class GrindstoneModel { |
| 10 | + private static final Texture pivot = Texture.grindstonePivot; |
| 11 | + private static final Texture round = Texture.grindstoneRound; |
| 12 | + private static final Texture side = Texture.grindstoneSide; |
| 13 | + private static final Texture leg = Texture.darkOakWood; |
| 14 | + private static final Texture[] tex = new Texture[]{ |
| 15 | + leg, leg, leg, leg, leg, |
| 16 | + leg, leg, leg, leg, leg, |
| 17 | + pivot, pivot, pivot, pivot, pivot, |
| 18 | + pivot, pivot, pivot, pivot, pivot, |
| 19 | + round, round, side, side, round, round |
| 20 | + }; |
| 21 | + |
| 22 | + private static final Quad[] quadsFloorNorth = new Quad[]{ |
| 23 | + new Quad( |
| 24 | + new Vector3(12 / 16.0, 0 / 16.0, 6 / 16.0), |
| 25 | + new Vector3(14 / 16.0, 0 / 16.0, 6 / 16.0), |
| 26 | + new Vector3(12 / 16.0, 0 / 16.0, 10 / 16.0), |
| 27 | + new Vector4(12 / 16.0, 14 / 16.0, 6 / 16.0, 10 / 16.0) |
| 28 | + ), |
| 29 | + new Quad( |
| 30 | + new Vector3(12 / 16.0, 7 / 16.0, 10 / 16.0), |
| 31 | + new Vector3(12 / 16.0, 7 / 16.0, 6 / 16.0), |
| 32 | + new Vector3(12 / 16.0, 0 / 16.0, 10 / 16.0), |
| 33 | + new Vector4(10 / 16.0, 6 / 16.0, 7 / 16.0, 0 / 16.0) |
| 34 | + ), |
| 35 | + new Quad( |
| 36 | + new Vector3(14 / 16.0, 7 / 16.0, 6 / 16.0), |
| 37 | + new Vector3(14 / 16.0, 7 / 16.0, 10 / 16.0), |
| 38 | + new Vector3(14 / 16.0, 0 / 16.0, 6 / 16.0), |
| 39 | + new Vector4(6 / 16.0, 10 / 16.0, 0 / 16.0, 7 / 16.0) |
| 40 | + ), |
| 41 | + new Quad( |
| 42 | + new Vector3(12 / 16.0, 7 / 16.0, 6 / 16.0), |
| 43 | + new Vector3(14 / 16.0, 7 / 16.0, 6 / 16.0), |
| 44 | + new Vector3(12 / 16.0, 0 / 16.0, 6 / 16.0), |
| 45 | + new Vector4(4 / 16.0, 2 / 16.0, 7 / 16.0, 0 / 16.0) |
| 46 | + ), |
| 47 | + new Quad( |
| 48 | + new Vector3(14 / 16.0, 7 / 16.0, 10 / 16.0), |
| 49 | + new Vector3(12 / 16.0, 7 / 16.0, 10 / 16.0), |
| 50 | + new Vector3(14 / 16.0, 0 / 16.0, 10 / 16.0), |
| 51 | + new Vector4(14 / 16.0, 12 / 16.0, 7 / 16.0, 0 / 16.0) |
| 52 | + ), |
| 53 | + new Quad( |
| 54 | + new Vector3(2 / 16.0, 0 / 16.0, 6 / 16.0), |
| 55 | + new Vector3(4 / 16.0, 0 / 16.0, 6 / 16.0), |
| 56 | + new Vector3(2 / 16.0, 0 / 16.0, 10 / 16.0), |
| 57 | + new Vector4(2 / 16.0, 4 / 16.0, 6 / 16.0, 10 / 16.0) |
| 58 | + ), |
| 59 | + new Quad( |
| 60 | + new Vector3(2 / 16.0, 7 / 16.0, 10 / 16.0), |
| 61 | + new Vector3(2 / 16.0, 7 / 16.0, 6 / 16.0), |
| 62 | + new Vector3(2 / 16.0, 0 / 16.0, 10 / 16.0), |
| 63 | + new Vector4(10 / 16.0, 6 / 16.0, 7 / 16.0, 0 / 16.0) |
| 64 | + ), |
| 65 | + new Quad( |
| 66 | + new Vector3(4 / 16.0, 7 / 16.0, 6 / 16.0), |
| 67 | + new Vector3(4 / 16.0, 7 / 16.0, 10 / 16.0), |
| 68 | + new Vector3(4 / 16.0, 0 / 16.0, 6 / 16.0), |
| 69 | + new Vector4(6 / 16.0, 10 / 16.0, 0 / 16.0, 7 / 16.0) |
| 70 | + ), |
| 71 | + new Quad( |
| 72 | + new Vector3(2 / 16.0, 7 / 16.0, 6 / 16.0), |
| 73 | + new Vector3(4 / 16.0, 7 / 16.0, 6 / 16.0), |
| 74 | + new Vector3(2 / 16.0, 0 / 16.0, 6 / 16.0), |
| 75 | + new Vector4(14 / 16.0, 12 / 16.0, 7 / 16.0, 0 / 16.0) |
| 76 | + ), |
| 77 | + new Quad( |
| 78 | + new Vector3(4 / 16.0, 7 / 16.0, 10 / 16.0), |
| 79 | + new Vector3(2 / 16.0, 7 / 16.0, 10 / 16.0), |
| 80 | + new Vector3(4 / 16.0, 0 / 16.0, 10 / 16.0), |
| 81 | + new Vector4(4 / 16.0, 2 / 16.0, 7 / 16.0, 0 / 16.0) |
| 82 | + ), |
| 83 | + new Quad( |
| 84 | + new Vector3(12 / 16.0, 13 / 16.0, 11 / 16.0), |
| 85 | + new Vector3(14 / 16.0, 13 / 16.0, 11 / 16.0), |
| 86 | + new Vector3(12 / 16.0, 13 / 16.0, 5 / 16.0), |
| 87 | + new Vector4(8 / 16.0, 10 / 16.0, 10 / 16.0, 16 / 16.0) |
| 88 | + ), |
| 89 | + new Quad( |
| 90 | + new Vector3(12 / 16.0, 7 / 16.0, 5 / 16.0), |
| 91 | + new Vector3(14 / 16.0, 7 / 16.0, 5 / 16.0), |
| 92 | + new Vector3(12 / 16.0, 7 / 16.0, 11 / 16.0), |
| 93 | + new Vector4(8 / 16.0, 10 / 16.0, 10 / 16.0, 16 / 16.0) |
| 94 | + ), |
| 95 | + new Quad( |
| 96 | + new Vector3(14 / 16.0, 13 / 16.0, 5 / 16.0), |
| 97 | + new Vector3(14 / 16.0, 13 / 16.0, 11 / 16.0), |
| 98 | + new Vector3(14 / 16.0, 7 / 16.0, 5 / 16.0), |
| 99 | + new Vector4(6 / 16.0, 0 / 16.0, 16 / 16.0, 10 / 16.0) |
| 100 | + ), |
| 101 | + new Quad( |
| 102 | + new Vector3(12 / 16.0, 13 / 16.0, 5 / 16.0), |
| 103 | + new Vector3(14 / 16.0, 13 / 16.0, 5 / 16.0), |
| 104 | + new Vector3(12 / 16.0, 7 / 16.0, 5 / 16.0), |
| 105 | + new Vector4(8 / 16.0, 6 / 16.0, 16 / 16.0, 10 / 16.0) |
| 106 | + ), |
| 107 | + new Quad( |
| 108 | + new Vector3(14 / 16.0, 13 / 16.0, 11 / 16.0), |
| 109 | + new Vector3(12 / 16.0, 13 / 16.0, 11 / 16.0), |
| 110 | + new Vector3(14 / 16.0, 7 / 16.0, 11 / 16.0), |
| 111 | + new Vector4(8 / 16.0, 6 / 16.0, 16 / 16.0, 10 / 16.0) |
| 112 | + ), |
| 113 | + new Quad( |
| 114 | + new Vector3(2 / 16.0, 13 / 16.0, 11 / 16.0), |
| 115 | + new Vector3(4 / 16.0, 13 / 16.0, 11 / 16.0), |
| 116 | + new Vector3(2 / 16.0, 13 / 16.0, 5 / 16.0), |
| 117 | + new Vector4(8 / 16.0, 10 / 16.0, 10 / 16.0, 16 / 16.0) |
| 118 | + ), |
| 119 | + new Quad( |
| 120 | + new Vector3(2 / 16.0, 7 / 16.0, 5 / 16.0), |
| 121 | + new Vector3(4 / 16.0, 7 / 16.0, 5 / 16.0), |
| 122 | + new Vector3(2 / 16.0, 7 / 16.0, 11 / 16.0), |
| 123 | + new Vector4(8 / 16.0, 10 / 16.0, 10 / 16.0, 16 / 16.0) |
| 124 | + ), |
| 125 | + new Quad( |
| 126 | + new Vector3(2 / 16.0, 13 / 16.0, 11 / 16.0), |
| 127 | + new Vector3(2 / 16.0, 13 / 16.0, 5 / 16.0), |
| 128 | + new Vector3(2 / 16.0, 7 / 16.0, 11 / 16.0), |
| 129 | + new Vector4(6 / 16.0, 0 / 16.0, 16 / 16.0, 10 / 16.0) |
| 130 | + ), |
| 131 | + new Quad( |
| 132 | + new Vector3(2 / 16.0, 13 / 16.0, 5 / 16.0), |
| 133 | + new Vector3(4 / 16.0, 13 / 16.0, 5 / 16.0), |
| 134 | + new Vector3(2 / 16.0, 7 / 16.0, 5 / 16.0), |
| 135 | + new Vector4(8 / 16.0, 6 / 16.0, 16 / 16.0, 10 / 16.0) |
| 136 | + ), |
| 137 | + new Quad( |
| 138 | + new Vector3(4 / 16.0, 13 / 16.0, 11 / 16.0), |
| 139 | + new Vector3(2 / 16.0, 13 / 16.0, 11 / 16.0), |
| 140 | + new Vector3(4 / 16.0, 7 / 16.0, 11 / 16.0), |
| 141 | + new Vector4(8 / 16.0, 6 / 16.0, 16 / 16.0, 10 / 16.0) |
| 142 | + ), |
| 143 | + new Quad( |
| 144 | + new Vector3(4 / 16.0, 16 / 16.0, 14 / 16.0), |
| 145 | + new Vector3(12 / 16.0, 16 / 16.0, 14 / 16.0), |
| 146 | + new Vector3(4 / 16.0, 16 / 16.0, 2 / 16.0), |
| 147 | + new Vector4(0 / 16.0, 8 / 16.0, 4 / 16.0, 16 / 16.0) |
| 148 | + ), |
| 149 | + new Quad( |
| 150 | + new Vector3(4 / 16.0, 4 / 16.0, 2 / 16.0), |
| 151 | + new Vector3(12 / 16.0, 4 / 16.0, 2 / 16.0), |
| 152 | + new Vector3(4 / 16.0, 4 / 16.0, 14 / 16.0), |
| 153 | + new Vector4(0 / 16.0, 8 / 16.0, 4 / 16.0, 16 / 16.0) |
| 154 | + ), |
| 155 | + new Quad( |
| 156 | + new Vector3(4 / 16.0, 16 / 16.0, 14 / 16.0), |
| 157 | + new Vector3(4 / 16.0, 16 / 16.0, 2 / 16.0), |
| 158 | + new Vector3(4 / 16.0, 4 / 16.0, 14 / 16.0), |
| 159 | + new Vector4(12 / 16.0, 0 / 16.0, 16 / 16.0, 4 / 16.0) |
| 160 | + ), |
| 161 | + new Quad( |
| 162 | + new Vector3(12 / 16.0, 16 / 16.0, 2 / 16.0), |
| 163 | + new Vector3(12 / 16.0, 16 / 16.0, 14 / 16.0), |
| 164 | + new Vector3(12 / 16.0, 4 / 16.0, 2 / 16.0), |
| 165 | + new Vector4(12 / 16.0, 0 / 16.0, 16 / 16.0, 4 / 16.0) |
| 166 | + ), |
| 167 | + new Quad( |
| 168 | + new Vector3(4 / 16.0, 16 / 16.0, 2 / 16.0), |
| 169 | + new Vector3(12 / 16.0, 16 / 16.0, 2 / 16.0), |
| 170 | + new Vector3(4 / 16.0, 4 / 16.0, 2 / 16.0), |
| 171 | + new Vector4(8 / 16.0, 0 / 16.0, 16 / 16.0, 4 / 16.0) |
| 172 | + ), |
| 173 | + new Quad( |
| 174 | + new Vector3(12 / 16.0, 16 / 16.0, 14 / 16.0), |
| 175 | + new Vector3(4 / 16.0, 16 / 16.0, 14 / 16.0), |
| 176 | + new Vector3(12 / 16.0, 4 / 16.0, 14 / 16.0), |
| 177 | + new Vector4(8 / 16.0, 0 / 16.0, 16 / 16.0, 4 / 16.0) |
| 178 | + ) |
| 179 | + }; |
| 180 | + |
| 181 | + static final Quad[][][] orientedQuads = new Quad[3][4][]; |
| 182 | + |
| 183 | + static { |
| 184 | + // face=floor |
| 185 | + orientedQuads[0][0] = quadsFloorNorth; |
| 186 | + orientedQuads[0][1] = Model.rotateY(orientedQuads[0][0]); |
| 187 | + orientedQuads[0][2] = Model.rotateY(orientedQuads[0][1]); |
| 188 | + orientedQuads[0][3] = Model.rotateY(orientedQuads[0][2]); |
| 189 | + |
| 190 | + // face=wall |
| 191 | + orientedQuads[1][0] = Model.rotateX(quadsFloorNorth, Math.toRadians(-90)); |
| 192 | + orientedQuads[1][1] = Model.rotateY(orientedQuads[1][0]); |
| 193 | + orientedQuads[1][2] = Model.rotateY(orientedQuads[1][1]); |
| 194 | + orientedQuads[1][3] = Model.rotateY(orientedQuads[1][2]); |
| 195 | + |
| 196 | + // face=ceiling |
| 197 | + orientedQuads[2][2] = Model.rotateX(quadsFloorNorth, Math.toRadians(180)); |
| 198 | + orientedQuads[2][3] = Model.rotateY(orientedQuads[2][2]); |
| 199 | + orientedQuads[2][0] = Model.rotateY(orientedQuads[2][3]); |
| 200 | + orientedQuads[2][1] = Model.rotateY(orientedQuads[2][0]); |
| 201 | + } |
| 202 | + |
| 203 | + public static boolean intersect(Ray ray, String face, String facing) { |
| 204 | + boolean hit = false; |
| 205 | + ray.t = Double.POSITIVE_INFINITY; |
| 206 | + |
| 207 | + Quad[] quads = orientedQuads[getFaceIndex(face)][getOrientationIndex(facing)]; |
| 208 | + for (int i = 0; i < quads.length; ++i) { |
| 209 | + Quad quad = quads[i]; |
| 210 | + if (quad.intersect(ray)) { |
| 211 | + float[] color = tex[i].getColor(ray.u, ray.v); |
| 212 | + if (color[3] > Ray.EPSILON) { |
| 213 | + ray.color.set(color); |
| 214 | + ray.t = ray.tNext; |
| 215 | + ray.n.set(quad.n); |
| 216 | + hit = true; |
| 217 | + } |
| 218 | + } |
| 219 | + } |
| 220 | + |
| 221 | + if (hit) { |
| 222 | + ray.distance += ray.t; |
| 223 | + ray.o.scaleAdd(ray.t, ray.d); |
| 224 | + } |
| 225 | + return hit; |
| 226 | + } |
| 227 | + |
| 228 | + private static int getFaceIndex(String face) { |
| 229 | + switch (face) { |
| 230 | + case "floor": |
| 231 | + return 0; |
| 232 | + case "wall": |
| 233 | + return 1; |
| 234 | + case "ceiling": |
| 235 | + return 2; |
| 236 | + default: |
| 237 | + return 0; |
| 238 | + } |
| 239 | + } |
| 240 | + |
| 241 | + private static int getOrientationIndex(String facing) { |
| 242 | + switch (facing) { |
| 243 | + case "north": |
| 244 | + return 0; |
| 245 | + case "east": |
| 246 | + return 1; |
| 247 | + case "south": |
| 248 | + return 2; |
| 249 | + case "west": |
| 250 | + return 3; |
| 251 | + default: |
| 252 | + return 0; |
| 253 | + } |
| 254 | + } |
| 255 | +} |
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