1 /** 2 Copyright: Copyright (c) 2014-2016 Andrey Penechko. 3 License: $(WEB boost.org/LICENSE_1_0.txt, Boost License 1.0). 4 Authors: Andrey Penechko. 5 */ 6 7 module voxelman.graphics.utils; 8 9 import std.experimental.logger; 10 11 import voxelman.container.buffer; 12 13 import voxelman.geometry.cube : CubeSide, cubeFaces; 14 import voxelman.math; 15 import voxelman.graphics; 16 17 18 void putFilledBlock(V)(ref Buffer!V output, vec3 pos, vec3 size, Color3ub color) 19 { 20 output.reserve(6 * 6); // 6 faces, 6 points per edge 21 22 for (size_t i = 0; i!=18*6; i+=3) 23 { 24 auto v = V( 25 cubeFaces[i ]*size.x + pos.x, 26 cubeFaces[i+1]*size.y + pos.y, 27 cubeFaces[i+2]*size.z + pos.z, 28 color); 29 output.put(v); 30 } 31 } 32 33 void putLineBlock(V)(ref Buffer!V output, vec3 pos, vec3 size, Color3ub color) 34 { 35 output.reserve(12 * 2); // 12 edges, 2 points per edge 36 37 for (size_t i = 0; i!=12*2*3; i+=3) 38 { 39 auto v = V( 40 cubeLines[i ]*size.x + pos.x, 41 cubeLines[i+1]*size.y + pos.y, 42 cubeLines[i+2]*size.z + pos.z, 43 color); 44 output.put(v); 45 } 46 } 47 48 void putFilledSide(V)(ref Buffer!V output, vec3 pos, vec3 size, CubeSide side, Color3ub color) 49 { 50 output.reserve(6); 51 52 for (size_t i = side * 18; i!=side*18+18; i+=3) 53 { 54 auto v = V( 55 cubeFaces[i ]*size.x + pos.x, 56 cubeFaces[i+1]*size.y + pos.y, 57 cubeFaces[i+2]*size.z + pos.z, 58 color); 59 output.put(v); 60 } 61 } 62 63 void putLineSide(V)(ref Buffer!V output, vec3 pos, vec3 size, CubeSide side, Color3ub color) 64 { 65 output.reserve(8); // 4 edges, 2 points per edge 66 67 for (size_t i = side * 24; i!=side*24+24; i+=3) 68 { 69 auto v = V( 70 cubeLineSides[i ]*size.x + pos.x, 71 cubeLineSides[i+1]*size.y + pos.y, 72 cubeLineSides[i+2]*size.z + pos.z, 73 color); 74 output.put(v); 75 } 76 } 77 78 immutable ubyte[] cubeLines = 79 [ 80 0, 0, 0, 1, 0, 0, 81 1, 0, 0, 1, 0, 1, 82 1, 0, 1, 0, 0, 1, 83 0, 0, 1, 0, 0, 0, 84 85 0, 1, 0, 1, 1, 0, 86 1, 1, 0, 1, 1, 1, 87 1, 1, 1, 0, 1, 1, 88 0, 1, 1, 0, 1, 0, 89 90 0, 0, 0, 0, 1, 0, 91 1, 0, 0, 1, 1, 0, 92 1, 0, 1, 1, 1, 1, 93 0, 0, 1, 0, 1, 1, 94 ]; 95 96 immutable ubyte[] cubeLineSides = 97 [ 98 0, 0, 0, // zneg 99 1, 0, 0, 100 0, 1, 0, 101 1, 1, 0, 102 0, 0, 0, 103 0, 1, 0, 104 1, 0, 0, 105 1, 1, 0, 106 107 0, 0, 1, // zpos 108 1, 0, 1, 109 0, 1, 1, 110 1, 1, 1, 111 0, 0, 1, 112 0, 1, 1, 113 1, 0, 1, 114 1, 1, 1, 115 116 1, 0, 0, // xpos 117 1, 0, 1, 118 1, 1, 0, 119 1, 1, 1, 120 1, 0, 0, 121 1, 1, 0, 122 1, 0, 1, 123 1, 1, 1, 124 125 0, 0, 0, // xneg 126 0, 0, 1, 127 0, 1, 0, 128 0, 1, 1, 129 0, 0, 0, 130 0, 1, 0, 131 0, 0, 1, 132 0, 1, 1, 133 134 1, 1, 1, // ypos 135 0, 1, 1, 136 1, 1, 0, 137 0, 1, 0, 138 1, 1, 1, 139 1, 1, 0, 140 0, 1, 1, 141 0, 1, 0, 142 143 1, 0, 1, // yneg 144 0, 0, 1, 145 1, 0, 0, 146 0, 0, 0, 147 1, 0, 1, 148 1, 0, 0, 149 0, 0, 1, 150 0, 0, 0, 151 ];