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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1004 | chris | 1 | package com.gebauz.bauzoid.graphics.model; |
| 2 | |||
| 3 | import com.gebauz.bauzoid.graphics.Graphics; |
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| 4 | import com.gebauz.bauzoid.math.Vector4; |
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| 5 | |||
| 6 | /** Generate quad and other geometry. */ |
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| 7 | public class GeometryUtil |
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| 8 | { |
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| 9 | |||
| 10 | static public SimpleGeometry createQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, |
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| 11 | float minS, float minT, float maxS, float maxT, Vector4 color) |
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| 12 | { |
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| 13 | SimpleGeometry mesh = new SimpleGeometry(graphics, Geometry.PrimitiveType.TRIANGLES); |
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| 14 | |||
| 15 | AttributeArray vertices = new AttributeArray(SimpleGeometry.POSITION_COORD_PER_ELEMENT * 6); |
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| 16 | vertices.fill(minX, minY, 0.0f); |
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| 17 | vertices.fill(maxX, minY, 0.0f); |
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| 18 | vertices.fill(minX, maxY, 0.0f); |
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| 19 | |||
| 20 | vertices.fill(minX, maxY, 0.0f); |
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| 21 | vertices.fill(maxX, minY, 0.0f); |
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| 22 | vertices.fill(maxX, maxY, 0.0f); |
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| 23 | |||
| 24 | AttributeArray colors = new AttributeArray(SimpleGeometry.COLOR_COORD_PER_ELEMENT * 6); |
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| 25 | colors.fill(color.x, color.y, color.z, color.w); |
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| 26 | colors.fill(color.x, color.y, color.z, color.w); |
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| 27 | colors.fill(color.x, color.y, color.z, color.w); |
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| 28 | colors.fill(color.x, color.y, color.z, color.w); |
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| 29 | colors.fill(color.x, color.y, color.z, color.w); |
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| 30 | colors.fill(color.x, color.y, color.z, color.w); |
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| 31 | |||
| 32 | AttributeArray texCoords = new AttributeArray(SimpleGeometry.TEXCOORD_COORD_PER_ELEMENT * 6); |
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| 33 | texCoords.fill(minS, maxT); |
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| 34 | texCoords.fill(maxS, maxT); |
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| 35 | texCoords.fill(minS, minT); |
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| 36 | |||
| 37 | texCoords.fill(minS, minT); |
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| 38 | texCoords.fill(maxS, maxT); |
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| 39 | texCoords.fill(maxS, minT); |
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| 40 | |||
| 41 | mesh.setPositions(vertices.getAttributeArray()); |
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| 42 | mesh.setColors(colors.getAttributeArray()); |
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| 43 | mesh.setTexCoords(texCoords.getAttributeArray()); |
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| 44 | |||
| 45 | return mesh; |
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| 46 | } |
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| 47 | |||
| 48 | public static SimpleGeometry createQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, |
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| 49 | float minS, float minT, float maxS, float maxT) |
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| 50 | { |
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| 51 | return createQuad(graphics, minX, minY, maxX, maxY, minS, minT, maxS, maxT, new Vector4(1.0f, 1.0f, 1.0f, 1.0f)); |
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| 52 | } |
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| 53 | |||
| 54 | public static SimpleGeometry createQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, Vector4 color) |
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| 55 | { |
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| 56 | return createQuad(graphics, minX, minY, maxX, maxY, 0.0f, 0.0f, 1.0f, 1.0f, new Vector4(1.0f, 1.0f, 1.0f, 1.0f)); |
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| 57 | } |
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| 58 | |||
| 59 | public static SimpleGeometry createQuad(Graphics graphics, float minX, float minY, float maxX, float maxY) |
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| 60 | { |
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| 61 | return createQuad(graphics, minX, minY, maxX, maxY, 0.0f, 0.0f, 1.0f, 1.0f); |
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| 62 | } |
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| 63 | |||
| 64 | static public SimpleGeometry createSubdividedQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, |
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| 65 | float minS, float minT, float maxS, float maxT, Vector4 color, int subdivisionX, int subdivisionY) |
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| 66 | { |
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| 67 | SimpleGeometry mesh = new SimpleGeometry(graphics, Geometry.PrimitiveType.TRIANGLES); |
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| 68 | |||
| 69 | final int numTiles = (subdivisionX + 1) * (subdivisionY + 1); |
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| 70 | |||
| 71 | AttributeArray vertices = new AttributeArray(SimpleGeometry.POSITION_COORD_PER_ELEMENT * 6 * numTiles); |
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| 72 | AttributeArray colors = new AttributeArray(SimpleGeometry.COLOR_COORD_PER_ELEMENT * 6 * numTiles); |
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| 73 | AttributeArray texCoords = new AttributeArray(SimpleGeometry.TEXCOORD_COORD_PER_ELEMENT * 6 * numTiles); |
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| 74 | |||
| 75 | float stepX = (maxX - minX) / (subdivisionX + 1); |
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| 76 | float stepY = (maxY - minY) / (subdivisionY + 1); |
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| 77 | |||
| 78 | float stepS = (maxS - minS) / (subdivisionX + 1); |
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| 79 | float stepT = (maxT - minT) / (subdivisionY + 1); |
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| 80 | |||
| 81 | float segmentX = minX; |
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| 82 | float segmentY = minY; |
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| 83 | |||
| 84 | float segmentS = minS; |
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| 85 | float segmentT = maxT; |
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| 86 | |||
| 87 | for (int y = 0; y < (subdivisionY + 1); y++) |
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| 88 | { |
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| 89 | for (int x = 0; x < (subdivisionX + 1); x++) |
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| 90 | { |
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| 91 | float segmentMinX = segmentX; |
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| 92 | float segmentMaxX = segmentX + stepX; |
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| 93 | float segmentMinY = segmentY; |
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| 94 | float segmentMaxY = segmentY + stepY; |
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| 95 | |||
| 96 | float segmentMinS = segmentS; |
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| 97 | float segmentMaxS = (segmentS + stepS); |
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| 98 | float segmentMinT = (segmentT - stepT); |
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| 99 | float segmentMaxT = segmentT; |
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| 100 | |||
| 101 | vertices.fill(segmentMinX, segmentMinY, 0.0f); |
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| 102 | vertices.fill(segmentMaxX, segmentMinY, 0.0f); |
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| 103 | vertices.fill(segmentMinX, segmentMaxY, 0.0f); |
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| 104 | |||
| 105 | vertices.fill(segmentMinX, segmentMaxY, 0.0f); |
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| 106 | vertices.fill(segmentMaxX, segmentMinY, 0.0f); |
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| 107 | vertices.fill(segmentMaxX, segmentMaxY, 0.0f); |
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| 108 | |||
| 109 | colors.fill(color.x, color.y, color.z, color.w); |
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| 110 | colors.fill(color.x, color.y, color.z, color.w); |
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| 111 | colors.fill(color.x, color.y, color.z, color.w); |
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| 112 | |||
| 113 | colors.fill(color.x, color.y, color.z, color.w); |
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| 114 | colors.fill(color.x, color.y, color.z, color.w); |
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| 115 | colors.fill(color.x, color.y, color.z, color.w); |
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| 116 | |||
| 117 | texCoords.fill(segmentMinS, segmentMaxT); |
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| 118 | texCoords.fill(segmentMaxS, segmentMaxT); |
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| 119 | texCoords.fill(segmentMinS, segmentMinT); |
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| 120 | |||
| 121 | texCoords.fill(segmentMinS, segmentMinT); |
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| 122 | texCoords.fill(segmentMaxS, segmentMaxT); |
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| 123 | texCoords.fill(segmentMaxS, segmentMinT); |
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| 124 | |||
| 125 | segmentX += stepX; |
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| 126 | segmentS += stepS; |
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| 127 | } |
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| 128 | |||
| 129 | segmentX = minX; |
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| 130 | segmentS = minS; |
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| 131 | |||
| 132 | segmentY += stepY; |
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| 133 | segmentT -= stepT; |
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| 134 | } |
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| 135 | |||
| 136 | /* AttributeArray vertices = new AttributeArray(SimpleGeometry.POSITION_COORD_PER_ELEMENT * 6); |
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| 137 | vertices.fill(minX, minY, 0.0f); |
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| 138 | vertices.fill(maxX, minY, 0.0f); |
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| 139 | vertices.fill(minX, maxY, 0.0f); |
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| 140 | |||
| 141 | vertices.fill(minX, maxY, 0.0f); |
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| 142 | vertices.fill(maxX, minY, 0.0f); |
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| 143 | vertices.fill(maxX, maxY, 0.0f); |
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| 144 | |||
| 145 | AttributeArray colors = new AttributeArray(SimpleGeometry.COLOR_COORD_PER_ELEMENT * 6); |
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| 146 | colors.fill(color.x, color.y, color.z, color.w); |
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| 147 | colors.fill(color.x, color.y, color.z, color.w); |
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| 148 | colors.fill(color.x, color.y, color.z, color.w); |
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| 149 | colors.fill(color.x, color.y, color.z, color.w); |
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| 150 | colors.fill(color.x, color.y, color.z, color.w); |
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| 151 | colors.fill(color.x, color.y, color.z, color.w); |
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| 152 | |||
| 153 | AttributeArray texCoords = new AttributeArray(SimpleGeometry.TEXCOORD_COORD_PER_ELEMENT * 6); |
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| 154 | texCoords.fill(minS, maxT); |
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| 155 | texCoords.fill(maxS, maxT); |
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| 156 | texCoords.fill(minS, minT); |
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| 157 | |||
| 158 | texCoords.fill(minS, minT); |
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| 159 | texCoords.fill(maxS, maxT); |
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| 160 | texCoords.fill(maxS, minT);*/ |
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| 161 | |||
| 162 | mesh.setPositions(vertices.getAttributeArray()); |
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| 163 | mesh.setColors(colors.getAttributeArray()); |
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| 164 | mesh.setTexCoords(texCoords.getAttributeArray()); |
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| 165 | |||
| 166 | return mesh; |
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| 167 | } |
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| 168 | |||
| 169 | public static SimpleGeometry createSubdividedQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, |
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| 170 | float minS, float minT, float maxS, float maxT, int subdivisionX, int subdivisionY) |
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| 171 | { |
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| 172 | return createSubdividedQuad(graphics, minX, minY, maxX, maxY, minS, minT, maxS, maxT, new Vector4(1.0f, 1.0f, 1.0f, 1.0f), |
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| 173 | subdivisionX, subdivisionY); |
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| 174 | } |
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| 175 | |||
| 176 | public static SimpleGeometry createSubdividedQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, |
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| 177 | Vector4 color, int subdivisionX, int subdivisionY) |
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| 178 | { |
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| 179 | return createSubdividedQuad(graphics, minX, minY, maxX, maxY, 0.0f, 0.0f, 1.0f, 1.0f, new Vector4(1.0f, 1.0f, 1.0f, 1.0f), |
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| 180 | subdivisionX, subdivisionY); |
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| 181 | } |
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| 182 | |||
| 183 | public static SimpleGeometry createSubdividedQuad(Graphics graphics, float minX, float minY, float maxX, float maxY, |
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| 184 | int subdivisionX, int subdivisionY) |
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| 185 | { |
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| 186 | return createSubdividedQuad(graphics, minX, minY, maxX, maxY, 0.0f, 0.0f, 1.0f, 1.0f, subdivisionX, subdivisionY); |
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| 187 | } |
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| 188 | } |