vrshoot

annotate src/level.cc @ 1:e7ca128b8713

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looks nice :)
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 02 Feb 2014 00:35:22 +0200
parents b2f14e535253
children
rev   line source
nuclear@1 1 #include <math.h>
nuclear@0 2 #include "level.h"
nuclear@0 3 #include "logger.h"
nuclear@1 4 #include "texman.h"
nuclear@1 5 #include "sdrman.h"
nuclear@0 6
nuclear@0 7 static void gen_mesh(Mesh *mesh);
nuclear@0 8
nuclear@1 9 static ShaderProg *level_sdr;
nuclear@1 10
nuclear@0 11 Level::Level()
nuclear@0 12 {
nuclear@1 13 dlimit_near = 0;
nuclear@1 14 dlimit_far = 25;
nuclear@1 15
nuclear@1 16 fly_speed = 3.0;
nuclear@0 17
nuclear@0 18 gen_mesh(&tile_mesh);
nuclear@0 19
nuclear@0 20 tile_obj = new Object;
nuclear@0 21 tile_obj->set_mesh(&tile_mesh);
nuclear@1 22 tile_obj->material.tex[0] = texset.get("data/purple_grid.png");
nuclear@1 23
nuclear@1 24 level_sdr = get_sdrprog("sdr/default.v.glsl", "sdr/level.p.glsl");
nuclear@0 25 }
nuclear@0 26
nuclear@0 27 Level::~Level()
nuclear@0 28 {
nuclear@0 29 delete tile_obj;
nuclear@0 30 }
nuclear@0 31
nuclear@0 32 void Level::set_draw_limits(float dnear, float dfar)
nuclear@0 33 {
nuclear@0 34 dlimit_near = dnear;
nuclear@0 35 dlimit_far = dfar;
nuclear@0 36 }
nuclear@0 37
nuclear@1 38 void Level::draw(long msec) const
nuclear@0 39 {
nuclear@0 40 AABox bbox = tile_obj->get_aabbox();
nuclear@0 41 float zsize = bbox.max.z - bbox.min.z;
nuclear@0 42 float zoffs = -zsize / 2.0;
nuclear@0 43
nuclear@1 44 float tm = (float)msec / 1000.0;
nuclear@1 45
nuclear@1 46 level_sdr->bind();
nuclear@1 47
nuclear@0 48 float z = dlimit_near;
nuclear@0 49 while(z < dlimit_far) {
nuclear@1 50 tile_obj->set_position(Vector3(0, 0, -(z - zoffs) + fmod(tm * fly_speed, zsize)));
nuclear@1 51
nuclear@1 52 // draw mirrored
nuclear@1 53 glFrontFace(GL_CW);
nuclear@1 54 tile_obj->set_scaling(Vector3(-1, 1, 1));
nuclear@0 55 tile_obj->draw();
nuclear@1 56 glFrontFace(GL_CCW);
nuclear@1 57 tile_obj->set_scaling(Vector3(1, 1, 1));
nuclear@1 58 tile_obj->draw();
nuclear@1 59
nuclear@0 60 z += zsize;
nuclear@0 61 }
nuclear@0 62 }
nuclear@0 63
nuclear@1 64 #define DEPTH 2.0
nuclear@1 65 #define POSTZ (0.8 * DEPTH)
nuclear@1 66
nuclear@0 67 static void gen_mesh(Mesh *mesh)
nuclear@0 68 {
nuclear@1 69 // vertical side
nuclear@0 70 mesh->normal(1, 0, 0);
nuclear@1 71 mesh->texcoord(0, 0); mesh->vertex(-2, 0, DEPTH);
nuclear@1 72 mesh->texcoord(3, 0); mesh->vertex(-2, 0, -DEPTH);
nuclear@1 73 mesh->texcoord(3, 2); mesh->vertex(-2, 1, -DEPTH);
nuclear@1 74 mesh->texcoord(0, 2); mesh->vertex(-2, 1, DEPTH);
nuclear@0 75
nuclear@1 76 // left diagonal
nuclear@0 77 Vector3 dnorm = Vector3(0.5, 1, 0).normalized();
nuclear@0 78 mesh->normal(dnorm.x, dnorm.y, dnorm.z);
nuclear@1 79 mesh->texcoord(0, 0); mesh->vertex(-1, -0.5, DEPTH);
nuclear@1 80 mesh->texcoord(3, 0); mesh->vertex(-1, -0.5, -DEPTH);
nuclear@1 81 mesh->texcoord(3, 2); mesh->vertex(-2, 0, -DEPTH);
nuclear@1 82 mesh->texcoord(0, 2); mesh->vertex(-2, 0, DEPTH);
nuclear@1 83
nuclear@1 84 // vertical post front
nuclear@1 85 mesh->normal(0, 0, 1);
nuclear@1 86 mesh->texcoord(0, 0); mesh->vertex(-2, -0.5, -POSTZ);
nuclear@1 87 mesh->texcoord(1, 0); mesh->vertex(-1.7, -0.5, -POSTZ);
nuclear@1 88 mesh->texcoord(1, 3); mesh->vertex(-1.7, 1, -POSTZ);
nuclear@1 89 mesh->texcoord(0, 3); mesh->vertex(-2, 1, -POSTZ);
nuclear@1 90
nuclear@1 91 // vertical post side
nuclear@1 92 mesh->normal(1, 0, 0);
nuclear@1 93 mesh->texcoord(0, 0); mesh->vertex(-1.7, -0.5, -POSTZ);
nuclear@1 94 mesh->texcoord(1, 0); mesh->vertex(-1.7, -0.5, -DEPTH);
nuclear@1 95 mesh->texcoord(1, 3); mesh->vertex(-1.7, 1, -DEPTH);
nuclear@1 96 mesh->texcoord(0, 3); mesh->vertex(-1.7, 1, -POSTZ);
nuclear@1 97
nuclear@1 98 // vertical post top
nuclear@1 99 mesh->normal(0, 1, 0);
nuclear@1 100 mesh->texcoord(0, 0); mesh->vertex(-2, 1, -POSTZ);
nuclear@1 101 mesh->texcoord(1, 0); mesh->vertex(-1.7, 1, -POSTZ);
nuclear@1 102 mesh->texcoord(1, 1); mesh->vertex(-1.7, 1, -DEPTH);
nuclear@1 103 mesh->texcoord(0, 1); mesh->vertex(-2, 1, -DEPTH);
nuclear@0 104
nuclear@0 105 /* floor */
nuclear@0 106 mesh->normal(0, 1, 0);
nuclear@1 107 mesh->texcoord(0, 0); mesh->vertex(-1, -0.5, DEPTH);
nuclear@1 108 mesh->texcoord(1, 0); mesh->vertex(0, -0.5, DEPTH);
nuclear@1 109 mesh->texcoord(1, 3); mesh->vertex(0, -0.5, -DEPTH);
nuclear@1 110 mesh->texcoord(0, 3); mesh->vertex(-1, -0.5, -DEPTH);
nuclear@0 111
nuclear@0 112 // quad face index buffer
nuclear@0 113 int nverts = mesh->get_attrib_count(MESH_ATTR_VERTEX);
nuclear@0 114 for(int i=0; i<nverts; i+=4) {
nuclear@0 115 mesh->face(i, i + 1, i + 2);
nuclear@0 116 mesh->face(i, i + 2, i + 3);
nuclear@0 117 }
nuclear@0 118
nuclear@0 119 info_log("generated level trough mesh: %d polygons\n", mesh->get_poly_count());
nuclear@0 120 }