testTerminal.c

   1 #include <stdio.h>
   2 #include "raycastlib.h"
   3 #include <unistd.h>
   4 #include <stdlib.h>
   5
   6 #define LEVEL_W 20
   7 #define LEVEL_H 15
   8
   9 #define SCREEN_W 80
  10 #define SCREEN_H 40
  11
  12 char pixels[SCREEN_W * SCREEN_H];
  13 Camera camera;
  14
  15 const int8_t level[LEVEL_W * LEVEL_H] =
  16 {
  17 /*                      11  13  15  17  19
  18   0 1 2 3 4 5 6 7 8 9 10  12  14  16  18  */
  19   0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0, // 0
  20   0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0, // 1
  21   0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,1,0,0, // 2
  22   1,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0, // 3
  23   0,0,0,0,0,0,0,0,0,1,0,0,1,1,1,0,0,1,0,0, // 4
  24   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0, // 5
  25   1,1,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0, // 6
  26   0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0, // 7
  27   0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,1,1,1,1, // 8
  28   0,0,0,0,0,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0, // 9
  29   0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1, // 10
  30   0,0,0,0,0,1,0,0,0,1,0,0,0,0,1,1,1,0,0,1, // 11
  31   0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0, // 12
  32   0,0,0,0,0,1,0,0,0,1,1,1,0,0,1,0,0,0,0,0, // 13
  33   0,0,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,0,0,0  // 14
  34 };
  35
  36 Unit heightAt(int16_t x, int16_t y)
  37 {
  38   int32_t index = y * LEVEL_W + x;
  39
  40   if (index < 0 || (index >= LEVEL_W * LEVEL_H))
  41     return UNITS_PER_SQUARE * 2;
  42
  43   return level[y * LEVEL_W + x] * UNITS_PER_SQUARE * 2;
  44 }
  45
  46 void pixelFunc(PixelInfo *p)
  47 {
  48   char c = ' ';
  49
  50   if (p->isWall)
  51   {
  52     switch (p->hit.direction)
  53     {
  54       case 0:  c = 'X'; break;
  55       case 1:  c = '#'; break;
  56       case 2:  c = 'o'; break;
  57       case 3:
  58       default: c = '.'; break;
  59     }
  60   }
  61
  62   pixels[p->position.y * SCREEN_W + p->position.x] = c;
  63 }
  64
  65 void draw()
  66 {
  67   for (int i = 0; i < 10; ++i)
  68   printf("\n");
  69
  70   RayConstraints c;
  71
  72   initRayConstraints(&c);
  73
  74   c.maxHits = 1;
  75   c.maxSteps = 40;
  76   c.computeTextureCoords = 0;
  77
  78
  79   //renderSimple(camera,heightAt,0,pixelFunc,0,c);
  80   render(camera,heightAt,0,0,pixelFunc,c);
  81
  82   for (int j = 0; j < SCREEN_H; ++j)
  83   {
  84     for (int i = 0; i < SCREEN_W; ++i)
  85       printf("%c",pixels[j * SCREEN_W + i]);
  86
  87     printf("\n");
  88   }
  89 }
  90
  91 int dx = 1;
  92 int dy = 0;
  93 int dr = 1;
  94 int frame = 0;
  95
  96 int main()
  97 {
  98   initCamera(&camera);
  99   camera.position.x = 2 * UNITS_PER_SQUARE;
 100   camera.position.y = 2 * UNITS_PER_SQUARE;
 101   camera.direction = 0;
 102   camera.resolution.x = SCREEN_W;
 103   camera.resolution.y = SCREEN_H;
 104
 105   for (int i = 0; i < 10000; ++i)
 106   {
 107     draw();
 108
 109     int squareX = divRoundDown(camera.position.x,UNITS_PER_SQUARE);
 110     int squareY = divRoundDown(camera.position.y,UNITS_PER_SQUARE);
 111
 112     if (rand() % 100 == 0)
 113     {
 114       dx = 1 - rand() % 3;
 115       dy = 1 - rand() % 3;
 116       dr = 1 - rand() % 3;
 117     }
 118
 119     while (heightAt(squareX + dx,squareY + dy) > 0)
 120     {
 121       dx = 1 - rand() % 3;
 122       dy = 1 - rand() % 3;
 123       dr = 1 - rand() % 3;
 124     }
 125
 126     camera.position.x += dx * 200;
 127     camera.position.y += dy * 200;
 128     camera.direction += dr * 10;
 129
 130     camera.height = UNITS_PER_SQUARE + sinInt(frame * 16) / 2;
 131
 132     usleep(100000);
 133
 134     frame++;
 135   }
 136
 137   return 0;
 138 }