138 lines
4.7 KiB
C
138 lines
4.7 KiB
C
#include "haloo3d/haloo3d.h"
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#include "haloo3d/haloo3dex_gen.h"
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#include "haloo3d/haloo3dex_obj.h"
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#ifndef TREECOL
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#define TREECOL 0xF070
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#endif
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#ifndef TREETRUNKCOL
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#define TREETRUNKCOL 0xF950
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#endif
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#ifndef TREEBOTTOM
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#define TREEBOTTOM -0.333
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#endif
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#ifndef TREETOPWIDTH
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#define TREETOPWIDTH 1.0
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#endif
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#ifndef TREETRUNKWIDTH
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#define TREETRUNKWIDTH 0.2
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#endif
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#define TOWERTHICK 0.65
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#define COMVERT(m, _x, _y, _z) \
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haloo3d_obj_addvertex(m, (struct vec4){.x = _x, .y = _y, .z = _z, .w = 1})
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#define COMCOL(m, col) haloo3d_obj_addvtexture(m, haloo3d_gen_paletteuv(col))
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// Fill a face with a solid color given by the tex
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void fastface(haloo3d_facei face, uint16_t tex, uint16_t v0, uint16_t v1,
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uint16_t v2) {
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face[0].texi = tex;
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face[1].texi = tex;
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face[2].texi = tex;
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face[0].posi = v0;
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face[1].posi = v1;
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face[2].posi = v2;
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}
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static inline uint16_t fastface2(haloo3d_obj *model, uint16_t tex, uint16_t v0,
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uint16_t v1, uint16_t v2) {
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haloo3d_facei face;
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fastface(face, tex, v0, v1, v2);
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return haloo3d_obj_addface(model, face);
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}
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// Generate a basic tree model
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void gen_tree_model(haloo3d_obj *tree) {
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haloo3d_obj_resetfixed(tree, 12, 24);
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int treeuv = COMCOL(tree, TREECOL);
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int trunkuv = COMCOL(tree, TREETRUNKCOL);
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uint16_t top = COMVERT(tree, 0, 1, 0);
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uint16_t tree1 = COMVERT(tree, -TREETOPWIDTH, TREEBOTTOM, -TREETOPWIDTH);
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uint16_t tree2 = COMVERT(tree, TREETOPWIDTH, TREEBOTTOM, -TREETOPWIDTH);
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uint16_t tree3 = COMVERT(tree, 0, TREEBOTTOM, TREETOPWIDTH);
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uint16_t trunk1 = COMVERT(tree, -TREETRUNKWIDTH, -1, -TREETRUNKWIDTH);
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uint16_t trunk2 = COMVERT(tree, TREETRUNKWIDTH, -1, -TREETRUNKWIDTH);
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uint16_t trunk3 = COMVERT(tree, 0, -1, TREETRUNKWIDTH);
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fastface2(tree, treeuv, top, tree1, tree3);
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fastface2(tree, treeuv, top, tree3, tree2);
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fastface2(tree, treeuv, top, tree2, tree1);
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fastface2(tree, trunkuv, top, trunk1, trunk3);
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fastface2(tree, trunkuv, top, trunk3, trunk2);
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fastface2(tree, trunkuv, top, trunk2, trunk1);
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haloo3d_obj_shrinktofit(tree);
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}
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void gen_circle_model(haloo3d_obj *model, uint16_t color, int vertices) {
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haloo3d_obj_resetfixed(model, vertices, vertices + 1);
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int circleuv = COMCOL(model, color);
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// Add the center
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uint16_t middle = COMVERT(model, 0, 0, 0);
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// Go in a circle of course
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float angle = 0;
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float angle_inc = MPI * 2 / vertices;
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uint16_t lastv = 0;
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uint16_t firstv = 0;
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for (int i = 0; i < vertices; i++) {
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uint16_t thisv = COMVERT(model, cos(angle), sin(angle), 0);
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if (i == 0) {
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firstv = thisv;
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} else {
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fastface2(model, circleuv, middle, lastv, thisv);
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}
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angle += angle_inc;
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lastv = thisv;
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}
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fastface2(model, circleuv, middle, lastv, firstv);
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}
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void gen_flower_model(haloo3d_obj *model, uint16_t color) {
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haloo3d_obj_resetfixed(model, 2, 5);
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uint16_t vs[5];
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uint16_t col = COMCOL(model, color);
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vs[0] = COMVERT(model, 0, -1, 0); // The shared middle
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vs[1] = COMVERT(model, 1, 1, 0);
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vs[2] = COMVERT(model, -1, 1, 0);
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vs[3] = COMVERT(model, 0, 1, 1);
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vs[4] = COMVERT(model, 0, 1, -1);
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fastface2(model, col, vs[0], vs[1], vs[2]);
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fastface2(model, col, vs[0], vs[3], vs[4]);
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}
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void gen_horibox(haloo3d_obj *model, uint16_t col, mfloat_t wid, mfloat_t bot,
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mfloat_t hei) {
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uint16_t box[8];
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box[0] = COMVERT(model, -wid, bot, wid);
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box[1] = COMVERT(model, -wid, bot + hei, wid);
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box[2] = COMVERT(model, wid, bot, wid);
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box[3] = COMVERT(model, wid, bot + hei, wid);
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box[4] = COMVERT(model, wid, bot, -wid);
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box[5] = COMVERT(model, wid, bot + hei, -wid);
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box[6] = COMVERT(model, -wid, bot, -wid);
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box[7] = COMVERT(model, -wid, bot + hei, -wid);
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for (int i = 0; i < 8; i += 2) {
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fastface2(model, col, box[i], box[(i + 3) & 7], box[(i + 1) & 7]);
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fastface2(model, col, box[i], box[(i + 2) & 7], box[(i + 3) & 7]);
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}
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}
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void gen_tower_model(haloo3d_obj *model, uint16_t color) {
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haloo3d_obj_resetfixed(model, 100, 100);
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uint16_t col = COMCOL(model, color);
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uint16_t top = COMVERT(model, 0, 1, 0);
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fastface2(model, col, top, COMVERT(model, -1, -1, 1),
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COMVERT(model, -TOWERTHICK, -1, TOWERTHICK));
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fastface2(model, col, top, COMVERT(model, 1, -1, 1),
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COMVERT(model, TOWERTHICK, -1, TOWERTHICK));
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fastface2(model, col, top, COMVERT(model, -1, -1, -1),
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COMVERT(model, -TOWERTHICK, -1, -TOWERTHICK));
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fastface2(model, col, top, COMVERT(model, 1, -1, -1),
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COMVERT(model, TOWERTHICK, -1, -TOWERTHICK));
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gen_horibox(model, col, 0.2, 0.8, 0.03);
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gen_horibox(model, col, 0.8, -0.4, 0.05);
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for (mfloat_t f = 0.7; f >= -0.4; f -= 0.2) {
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gen_horibox(model, col, (1 - f) * 0.5, f, 0.01);
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}
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haloo3d_obj_shrinktofit(model);
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}
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