vrshoot

annotate src/level.cc @ 0:b2f14e535253

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initial commit
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
parents
children e7ca128b8713
rev   line source
nuclear@0 1 #include "level.h"
nuclear@0 2 #include "logger.h"
nuclear@0 3
nuclear@0 4 static void gen_mesh(Mesh *mesh);
nuclear@0 5
nuclear@0 6 Level::Level()
nuclear@0 7 {
nuclear@0 8 dlimit_near = -2;
nuclear@0 9 dlimit_far = 8;
nuclear@0 10
nuclear@0 11 gen_mesh(&tile_mesh);
nuclear@0 12
nuclear@0 13 tile_obj = new Object;
nuclear@0 14 tile_obj->set_mesh(&tile_mesh);
nuclear@0 15 }
nuclear@0 16
nuclear@0 17 Level::~Level()
nuclear@0 18 {
nuclear@0 19 delete tile_obj;
nuclear@0 20 }
nuclear@0 21
nuclear@0 22 void Level::set_draw_limits(float dnear, float dfar)
nuclear@0 23 {
nuclear@0 24 dlimit_near = dnear;
nuclear@0 25 dlimit_far = dfar;
nuclear@0 26 }
nuclear@0 27
nuclear@0 28 void Level::draw() const
nuclear@0 29 {
nuclear@0 30 AABox bbox = tile_obj->get_aabbox();
nuclear@0 31 float zsize = bbox.max.z - bbox.min.z;
nuclear@0 32 float zoffs = -zsize / 2.0;
nuclear@0 33
nuclear@0 34 float z = dlimit_near;
nuclear@0 35 while(z < dlimit_far) {
nuclear@0 36 tile_obj->set_position(Vector3(0, 0, -(z - zoffs)));
nuclear@0 37 tile_obj->draw();
nuclear@0 38 z += zsize;
nuclear@0 39 }
nuclear@0 40 }
nuclear@0 41
nuclear@0 42 static void gen_mesh(Mesh *mesh)
nuclear@0 43 {
nuclear@0 44 /* left vertical side */
nuclear@0 45 mesh->normal(1, 0, 0);
nuclear@0 46 mesh->texcoord(0, 0); mesh->vertex(-2, 0, 1);
nuclear@0 47 mesh->texcoord(1, 0); mesh->vertex(-2, 0, -1);
nuclear@0 48 mesh->texcoord(1, 1); mesh->vertex(-2, 1, -1);
nuclear@0 49 mesh->texcoord(0, 1); mesh->vertex(-2, 1, 1);
nuclear@0 50
nuclear@0 51 /* left diagonal */
nuclear@0 52 Vector3 dnorm = Vector3(0.5, 1, 0).normalized();
nuclear@0 53 mesh->normal(dnorm.x, dnorm.y, dnorm.z);
nuclear@0 54 mesh->texcoord(0, 0); mesh->vertex(-1, -0.5, 1);
nuclear@0 55 mesh->texcoord(1, 0); mesh->vertex(-1, -0.5, -1);
nuclear@0 56 mesh->texcoord(1, 1); mesh->vertex(-2, 0, -1);
nuclear@0 57 mesh->texcoord(0, 1); mesh->vertex(-2, 0, 1);
nuclear@0 58
nuclear@0 59 /* floor */
nuclear@0 60 mesh->normal(0, 1, 0);
nuclear@0 61 mesh->texcoord(0, 0); mesh->vertex(-1, -0.5, 1);
nuclear@0 62 mesh->texcoord(1, 0); mesh->vertex(1, -0.5, 1);
nuclear@0 63 mesh->texcoord(1, 1); mesh->vertex(1, -0.5, -1);
nuclear@0 64 mesh->texcoord(0, 1); mesh->vertex(-1, -0.5, -1);
nuclear@0 65
nuclear@0 66 /* right vertical side */
nuclear@0 67 mesh->normal(-1, 0, 0);
nuclear@0 68 mesh->texcoord(0, 0); mesh->vertex(2, 0, -1);
nuclear@0 69 mesh->texcoord(1, 0); mesh->vertex(2, 0, 1);
nuclear@0 70 mesh->texcoord(1, 1); mesh->vertex(2, 1, 1);
nuclear@0 71 mesh->texcoord(0, 1); mesh->vertex(2, 1, -1);
nuclear@0 72
nuclear@0 73 /* right diagonal */
nuclear@0 74 dnorm = Vector3(-0.5, 1, 0).normalized();
nuclear@0 75 mesh->normal(dnorm.x, dnorm.y, dnorm.z);
nuclear@0 76 mesh->texcoord(0, 0); mesh->vertex(1, -0.5, -1);
nuclear@0 77 mesh->texcoord(1, 0); mesh->vertex(1, -0.5, 1);
nuclear@0 78 mesh->texcoord(1, 1); mesh->vertex(2, 0, 1);
nuclear@0 79 mesh->texcoord(0, 1); mesh->vertex(2, 0, -1);
nuclear@0 80
nuclear@0 81 // quad face index buffer
nuclear@0 82 int nverts = mesh->get_attrib_count(MESH_ATTR_VERTEX);
nuclear@0 83 for(int i=0; i<nverts; i+=4) {
nuclear@0 84 mesh->face(i, i + 1, i + 2);
nuclear@0 85 mesh->face(i, i + 2, i + 3);
nuclear@0 86 }
nuclear@0 87
nuclear@0 88 info_log("generated level trough mesh: %d polygons\n", mesh->get_poly_count());
nuclear@0 89 }