Cong Vu / Mbed 2 deprecated Snake-game-fall2020_C

Snake

Dependencies:   mbed wave_player 4DGL-uLCD-SE MMA8452

map.cpp@1:10330bce85cb, 2020-10-23 (annotated)

Committer:
DCchico
Date:
Fri Oct 23 16:18:39 2020 -0400
Revision:
1:10330bce85cb
Child:
2:4947d6a82971
shell-code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DCchico 1:10330bce85cb 1 #include "map.h"
DCchico 1:10330bce85cb 2
DCchico 1:10330bce85cb 3 #include "globals.h"
DCchico 1:10330bce85cb 4 #include "graphics.h"
DCchico 1:10330bce85cb 5
DCchico 1:10330bce85cb 6 /**
DCchico 1:10330bce85cb 7 * The Map structure. This holds a HashTable for all the MapItems, along with
DCchico 1:10330bce85cb 8 * values for the width and height of the Map.
DCchico 1:10330bce85cb 9 */
DCchico 1:10330bce85cb 10 struct Map {
DCchico 1:10330bce85cb 11 HashTable* items;
DCchico 1:10330bce85cb 12 int w, h;
DCchico 1:10330bce85cb 13 };
DCchico 1:10330bce85cb 14
DCchico 1:10330bce85cb 15 #define NUM_MAPS 1
DCchico 1:10330bce85cb 16 static Map maps[NUM_MAPS];
DCchico 1:10330bce85cb 17 static int active_map;
DCchico 1:10330bce85cb 18
DCchico 1:10330bce85cb 19 static const MapItem CLEAR_SENTINEL = {
DCchico 1:10330bce85cb 20 .type = CLEAR,
DCchico 1:10330bce85cb 21 .draw = draw_nothing
DCchico 1:10330bce85cb 22 };
DCchico 1:10330bce85cb 23
DCchico 1:10330bce85cb 24 /**
DCchico 1:10330bce85cb 25 * The first step in HashTable access for the map is turning the two-dimensional
DCchico 1:10330bce85cb 26 * key information (x, y) into a one-dimensional unsigned integer.
DCchico 1:10330bce85cb 27 * This function should uniquely map (x,y) onto the space of unsigned integers.
DCchico 1:10330bce85cb 28 */
DCchico 1:10330bce85cb 29 static unsigned XY_KEY(int X, int Y) {
DCchico 1:10330bce85cb 30 // TODO: Fix me!
DCchico 1:10330bce85cb 31 }
DCchico 1:10330bce85cb 32
DCchico 1:10330bce85cb 33 /**
DCchico 1:10330bce85cb 34 * This is the hash function actually passed into createHashTable. It takes an
DCchico 1:10330bce85cb 35 * unsigned key (the output of XY_KEY) and turns it into a hash value (some
DCchico 1:10330bce85cb 36 * small non-negative integer).
DCchico 1:10330bce85cb 37 */
DCchico 1:10330bce85cb 38 unsigned map_hash(unsigned key)
DCchico 1:10330bce85cb 39 {
DCchico 1:10330bce85cb 40 // TODO: Fix me!
DCchico 1:10330bce85cb 41 }
DCchico 1:10330bce85cb 42
DCchico 1:10330bce85cb 43 void maps_init()
DCchico 1:10330bce85cb 44 {
DCchico 1:10330bce85cb 45 // TODO: Implement!
DCchico 1:10330bce85cb 46 // Initialize hash table
DCchico 1:10330bce85cb 47 // Set width & height
DCchico 1:10330bce85cb 48 }
DCchico 1:10330bce85cb 49
DCchico 1:10330bce85cb 50 Map* get_active_map()
DCchico 1:10330bce85cb 51 {
DCchico 1:10330bce85cb 52 return &maps[active_map];
DCchico 1:10330bce85cb 53 }
DCchico 1:10330bce85cb 54
DCchico 1:10330bce85cb 55 Map* set_active_map(int m)
DCchico 1:10330bce85cb 56 {
DCchico 1:10330bce85cb 57 active_map = m;
DCchico 1:10330bce85cb 58 return &maps[active_map];
DCchico 1:10330bce85cb 59 }
DCchico 1:10330bce85cb 60
DCchico 1:10330bce85cb 61 void print_map()
DCchico 1:10330bce85cb 62 {
DCchico 1:10330bce85cb 63 char lookup[] = {'W', 'D', 'P', 'A', 'K', 'C', 'N',' ','S'};
DCchico 1:10330bce85cb 64 Map* map = get_active_map();
DCchico 1:10330bce85cb 65 for(int j = 0; j < map->h; j++)
DCchico 1:10330bce85cb 66 {
DCchico 1:10330bce85cb 67 for (int i = 0; i < map->w; i++)
DCchico 1:10330bce85cb 68 {
DCchico 1:10330bce85cb 69 MapItem* item = (MapItem*)getItem(map->items, XY_KEY(i, j));
DCchico 1:10330bce85cb 70 if (item) pc.printf("%c", lookup[item->type]);
DCchico 1:10330bce85cb 71 else pc.printf(" ");
DCchico 1:10330bce85cb 72 }
DCchico 1:10330bce85cb 73 pc.printf("\r\n");
DCchico 1:10330bce85cb 74 }
DCchico 1:10330bce85cb 75 }
DCchico 1:10330bce85cb 76
DCchico 1:10330bce85cb 77 int map_width()
DCchico 1:10330bce85cb 78 {
DCchico 1:10330bce85cb 79
DCchico 1:10330bce85cb 80 }
DCchico 1:10330bce85cb 81
DCchico 1:10330bce85cb 82 int map_height()
DCchico 1:10330bce85cb 83 {
DCchico 1:10330bce85cb 84
DCchico 1:10330bce85cb 85 }
DCchico 1:10330bce85cb 86
DCchico 1:10330bce85cb 87 int map_area()
DCchico 1:10330bce85cb 88 {
DCchico 1:10330bce85cb 89
DCchico 1:10330bce85cb 90 }
DCchico 1:10330bce85cb 91 MapItem* get_current(int x, int y)
DCchico 1:10330bce85cb 92 {
DCchico 1:10330bce85cb 93
DCchico 1:10330bce85cb 94 }
DCchico 1:10330bce85cb 95 MapItem* get_north(int x, int y)
DCchico 1:10330bce85cb 96 {
DCchico 1:10330bce85cb 97
DCchico 1:10330bce85cb 98 }
DCchico 1:10330bce85cb 99 MapItem* get_south(int x, int y)
DCchico 1:10330bce85cb 100 {
DCchico 1:10330bce85cb 101
DCchico 1:10330bce85cb 102 }
DCchico 1:10330bce85cb 103
DCchico 1:10330bce85cb 104 MapItem* get_east(int x, int y)
DCchico 1:10330bce85cb 105 {
DCchico 1:10330bce85cb 106
DCchico 1:10330bce85cb 107 }
DCchico 1:10330bce85cb 108
DCchico 1:10330bce85cb 109 MapItem* get_west(int x, int y)
DCchico 1:10330bce85cb 110 {
DCchico 1:10330bce85cb 111
DCchico 1:10330bce85cb 112 }
DCchico 1:10330bce85cb 113
DCchico 1:10330bce85cb 114 MapItem* get_here(int x, int y)
DCchico 1:10330bce85cb 115 {
DCchico 1:10330bce85cb 116
DCchico 1:10330bce85cb 117 }
DCchico 1:10330bce85cb 118
DCchico 1:10330bce85cb 119 void map_erase(int x, int y)
DCchico 1:10330bce85cb 120 {
DCchico 1:10330bce85cb 121
DCchico 1:10330bce85cb 122 }
DCchico 1:10330bce85cb 123
DCchico 1:10330bce85cb 124 void add_wall(int x, int y, int dir, int len)
DCchico 1:10330bce85cb 125 {
DCchico 1:10330bce85cb 126 for(int i = 0; i < len; i++)
DCchico 1:10330bce85cb 127 {
DCchico 1:10330bce85cb 128 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 129 w1->type = WALL;
DCchico 1:10330bce85cb 130 w1->draw = draw_wall;
DCchico 1:10330bce85cb 131 w1->walkable = false;
DCchico 1:10330bce85cb 132 w1->data = NULL;
DCchico 1:10330bce85cb 133 unsigned key = (dir == HORIZONTAL) ? XY_KEY(x+i, y) : XY_KEY(x, y+i);
DCchico 1:10330bce85cb 134 void* val = insertItem(get_active_map()->items, key, w1);
DCchico 1:10330bce85cb 135 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 136 }
DCchico 1:10330bce85cb 137 }
DCchico 1:10330bce85cb 138
DCchico 1:10330bce85cb 139 void add_plant(int x, int y)
DCchico 1:10330bce85cb 140 {
DCchico 1:10330bce85cb 141 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 142 w1->type = PLANT;
DCchico 1:10330bce85cb 143 w1->draw = draw_plant;
DCchico 1:10330bce85cb 144 w1->walkable = false;
DCchico 1:10330bce85cb 145 w1->data = NULL;
DCchico 1:10330bce85cb 146 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 147 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 148 }
DCchico 1:10330bce85cb 149
DCchico 1:10330bce85cb 150 void add_goodie(int x, int y)
DCchico 1:10330bce85cb 151 {
DCchico 1:10330bce85cb 152 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 153 w1->type = GOODIE;
DCchico 1:10330bce85cb 154 w1->draw = draw_goodie;
DCchico 1:10330bce85cb 155 w1->walkable = true;
DCchico 1:10330bce85cb 156 w1->data = NULL;
DCchico 1:10330bce85cb 157 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 158 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 159 }
DCchico 1:10330bce85cb 160
DCchico 1:10330bce85cb 161 void remove_goodie(int x, int y) // I'm lazy so overwrite it with a plant
DCchico 1:10330bce85cb 162 {
DCchico 1:10330bce85cb 163 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 164 w1->type = PLANT;
DCchico 1:10330bce85cb 165 w1->draw = draw_plant;
DCchico 1:10330bce85cb 166 w1->walkable = true;
DCchico 1:10330bce85cb 167 w1->data = NULL;
DCchico 1:10330bce85cb 168 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 169 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 170 }
DCchico 1:10330bce85cb 171
DCchico 1:10330bce85cb 172 void add_snake_body(int x, int y)
DCchico 1:10330bce85cb 173 {
DCchico 1:10330bce85cb 174 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 175 w1->type = SNAKE_BODY;
DCchico 1:10330bce85cb 176 w1->draw = draw_snake_body;
DCchico 1:10330bce85cb 177 w1->walkable = false;
DCchico 1:10330bce85cb 178 w1->data = NULL;
DCchico 1:10330bce85cb 179 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 180 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 181 }
DCchico 1:10330bce85cb 182
DCchico 1:10330bce85cb 183 void add_snake_head(int x, int y)
DCchico 1:10330bce85cb 184 {
DCchico 1:10330bce85cb 185 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 186 w1->type = SNAKE_BODY;
DCchico 1:10330bce85cb 187 w1->draw = draw_snake_head;
DCchico 1:10330bce85cb 188 w1->walkable = false;
DCchico 1:10330bce85cb 189 w1->data = NULL;
DCchico 1:10330bce85cb 190 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 191 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 192 }
DCchico 1:10330bce85cb 193
DCchico 1:10330bce85cb 194 void add_snake_tail(int x, int y)
DCchico 1:10330bce85cb 195 {
DCchico 1:10330bce85cb 196 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 197 w1->type = SNAKE_BODY;
DCchico 1:10330bce85cb 198 w1->draw = draw_snake_tail;
DCchico 1:10330bce85cb 199 w1->walkable = false;
DCchico 1:10330bce85cb 200 w1->data = NULL;
DCchico 1:10330bce85cb 201 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 202 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 203 }