git.mutantstargoat.com Git - dosrtxon/blob - src/parts/rtxonoff.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include "demo.h"
   5 #include "3dgfx.h"
   6 #include "screen.h"
   7 #include "cfgopt.h"
   8 #include "polyfill.h"
   9 #include "imago2.h"
  10 #include "gfxutil.h"
  11 #include "mesh.h"
  12
  13 static int init(void);
  14 static void destroy(void);
  15 static void start(long trans_time);
  16 static void draw(void);
  17 static void keypress(int key);
  18
  19 static struct screen scr = {
  20         "rtxonoff",
  21         init,
  22         destroy,
  23         start, 0,
  24         draw,
  25         keypress
  26 };
  27
  28 static float cam_theta = -29, cam_phi = 35;
  29 static float cam_dist = 10;
  30
  31 static const char *car_fname[2] = {"data/ldiablo.obj", 0};
  32 static const char *cartex_fname[2] = {"data/ldiablo.png", 0};
  33 static struct g3d_mesh mesh_car[2];
  34 static struct pimage tex_car[2];
  35
  36 struct screen *rtxonoff_screen(void)
  37 {
  38         return &scr;
  39 }
  40
  41 static int init(void)
  42 {
  43         int i;
  44
  45         for(i=0; i<sizeof car_fname / sizeof car_fname[0]; i++) {
  46                 if(cartex_fname[i]) {
  47                         if(!(tex_car[i].pixels = img_load_pixels(cartex_fname[i],
  48                                                         &tex_car[i].width, &tex_car[i].height, IMG_FMT_RGB24))) {
  49                                 fprintf(stderr, "failed to load car texture: %s\n", cartex_fname[i]);
  50                                 return -1;
  51                         }
  52                         convimg_rgb24_rgb16(tex_car[i].pixels, (unsigned char*)tex_car[i].pixels,
  53                                         tex_car[i].width, tex_car[i].height);
  54                 }
  55                 if(car_fname[i]) {
  56                         if(load_mesh(&mesh_car[i], car_fname[i]) == -1) {
  57                                 return -1;
  58                         }
  59                 }
  60         }
  61         return 0;
  62 }
  63
  64 static void destroy(void)
  65 {
  66         int i;
  67
  68         for(i=0; i<2; i++) {
  69                 free(mesh_car[i].varr);
  70                 free(mesh_car[i].iarr);
  71         }
  72 }
  73
  74 static void start(long trans_time)
  75 {
  76         g3d_matrix_mode(G3D_PROJECTION);
  77         g3d_load_identity();
  78         g3d_perspective(60.0, 1.3333333, 0.5, 100.0);
  79
  80         g3d_enable(G3D_CULL_FACE);
  81         g3d_enable(G3D_LIGHTING);
  82         g3d_enable(G3D_LIGHT0);
  83 }
  84
  85 static void update(void)
  86 {
  87         mouse_orbit_update(&cam_theta, &cam_phi, &cam_dist);
  88 }
  89
  90 static void draw(void)
  91 {
  92         int i;
  93         static float vdir[3];
  94         float t = (float)time_msec / 16.0f;
  95
  96         update();
  97
  98         memset(fb_pixels, 0, fb_width * fb_height * 2);
  99
 100         g3d_matrix_mode(G3D_MODELVIEW);
 101         g3d_load_identity();
 102         g3d_translate(0, 0, -cam_dist);
 103         g3d_rotate(cam_phi, 1, 0, 0);
 104         g3d_rotate(cam_theta, 0, 1, 0);
 105
 106         g3d_polygon_mode(G3D_TEX_GOURAUD);
 107
 108         for(i=0; i<sizeof mesh_car / sizeof mesh_car[0]; i++) {
 109                 if(mesh_car[i].varr) {
 110                         g3d_set_texture(tex_car[i].width, tex_car[i].height, tex_car[i].pixels);
 111
 112                         zsort_mesh(&mesh_car[i]);
 113                         draw_mesh(&mesh_car[i]);
 114                 }
 115         }
 116
 117         swap_buffers(fb_pixels);
 118 }
 119
 120 static void keypress(int key)
 121 {
 122 }