Cong Vu / Mbed 2 deprecated Snake-game-fall2020_C

Snake

Dependencies:   mbed wave_player 4DGL-uLCD-SE MMA8452

map.cpp@2:4947d6a82971, 2020-10-23 (annotated)

Committer:
DCchico
Date:
Fri Oct 23 16:30:18 2020 -0400
Revision:
2:4947d6a82971
Parent:
1:10330bce85cb
Child:
3:2fe73b263a9a
shell

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DCchico 2:4947d6a82971 1 // Copyright 2020 Georgia Tech. All rights reserved.
DCchico 2:4947d6a82971 2 // The materials provided by the instructor in this course are for
DCchico 2:4947d6a82971 3 // the use of the students currently enrolled in the course.
DCchico 2:4947d6a82971 4 // Copyrighted course materials may not be further disseminated.
DCchico 2:4947d6a82971 5 // This file must not be made publicly available anywhere.
DCchico 2:4947d6a82971 6
DCchico 1:10330bce85cb 7 #include "map.h"
DCchico 1:10330bce85cb 8
DCchico 1:10330bce85cb 9 #include "globals.h"
DCchico 1:10330bce85cb 10 #include "graphics.h"
DCchico 1:10330bce85cb 11
DCchico 1:10330bce85cb 12 /**
DCchico 1:10330bce85cb 13 * The Map structure. This holds a HashTable for all the MapItems, along with
DCchico 1:10330bce85cb 14 * values for the width and height of the Map.
DCchico 1:10330bce85cb 15 */
DCchico 1:10330bce85cb 16 struct Map {
DCchico 1:10330bce85cb 17 HashTable* items;
DCchico 1:10330bce85cb 18 int w, h;
DCchico 1:10330bce85cb 19 };
DCchico 1:10330bce85cb 20
DCchico 1:10330bce85cb 21 #define NUM_MAPS 1
DCchico 1:10330bce85cb 22 static Map maps[NUM_MAPS];
DCchico 1:10330bce85cb 23 static int active_map;
DCchico 1:10330bce85cb 24
DCchico 1:10330bce85cb 25 static const MapItem CLEAR_SENTINEL = {
DCchico 1:10330bce85cb 26 .type = CLEAR,
DCchico 1:10330bce85cb 27 .draw = draw_nothing
DCchico 1:10330bce85cb 28 };
DCchico 1:10330bce85cb 29
DCchico 1:10330bce85cb 30 /**
DCchico 1:10330bce85cb 31 * The first step in HashTable access for the map is turning the two-dimensional
DCchico 1:10330bce85cb 32 * key information (x, y) into a one-dimensional unsigned integer.
DCchico 1:10330bce85cb 33 * This function should uniquely map (x,y) onto the space of unsigned integers.
DCchico 1:10330bce85cb 34 */
DCchico 1:10330bce85cb 35 static unsigned XY_KEY(int X, int Y) {
DCchico 1:10330bce85cb 36 // TODO: Fix me!
DCchico 1:10330bce85cb 37 }
DCchico 1:10330bce85cb 38
DCchico 1:10330bce85cb 39 /**
DCchico 1:10330bce85cb 40 * This is the hash function actually passed into createHashTable. It takes an
DCchico 1:10330bce85cb 41 * unsigned key (the output of XY_KEY) and turns it into a hash value (some
DCchico 1:10330bce85cb 42 * small non-negative integer).
DCchico 1:10330bce85cb 43 */
DCchico 1:10330bce85cb 44 unsigned map_hash(unsigned key)
DCchico 1:10330bce85cb 45 {
DCchico 1:10330bce85cb 46 // TODO: Fix me!
DCchico 1:10330bce85cb 47 }
DCchico 1:10330bce85cb 48
DCchico 1:10330bce85cb 49 void maps_init()
DCchico 1:10330bce85cb 50 {
DCchico 1:10330bce85cb 51 // TODO: Implement!
DCchico 1:10330bce85cb 52 // Initialize hash table
DCchico 1:10330bce85cb 53 // Set width & height
DCchico 1:10330bce85cb 54 }
DCchico 1:10330bce85cb 55
DCchico 1:10330bce85cb 56 Map* get_active_map()
DCchico 1:10330bce85cb 57 {
DCchico 1:10330bce85cb 58 return &maps[active_map];
DCchico 1:10330bce85cb 59 }
DCchico 1:10330bce85cb 60
DCchico 1:10330bce85cb 61 Map* set_active_map(int m)
DCchico 1:10330bce85cb 62 {
DCchico 1:10330bce85cb 63 active_map = m;
DCchico 1:10330bce85cb 64 return &maps[active_map];
DCchico 1:10330bce85cb 65 }
DCchico 1:10330bce85cb 66
DCchico 1:10330bce85cb 67 void print_map()
DCchico 1:10330bce85cb 68 {
DCchico 1:10330bce85cb 69 char lookup[] = {'W', 'D', 'P', 'A', 'K', 'C', 'N',' ','S'};
DCchico 1:10330bce85cb 70 Map* map = get_active_map();
DCchico 1:10330bce85cb 71 for(int j = 0; j < map->h; j++)
DCchico 1:10330bce85cb 72 {
DCchico 1:10330bce85cb 73 for (int i = 0; i < map->w; i++)
DCchico 1:10330bce85cb 74 {
DCchico 1:10330bce85cb 75 MapItem* item = (MapItem*)getItem(map->items, XY_KEY(i, j));
DCchico 1:10330bce85cb 76 if (item) pc.printf("%c", lookup[item->type]);
DCchico 1:10330bce85cb 77 else pc.printf(" ");
DCchico 1:10330bce85cb 78 }
DCchico 1:10330bce85cb 79 pc.printf("\r\n");
DCchico 1:10330bce85cb 80 }
DCchico 1:10330bce85cb 81 }
DCchico 1:10330bce85cb 82
DCchico 1:10330bce85cb 83 int map_width()
DCchico 1:10330bce85cb 84 {
DCchico 1:10330bce85cb 85
DCchico 1:10330bce85cb 86 }
DCchico 1:10330bce85cb 87
DCchico 1:10330bce85cb 88 int map_height()
DCchico 1:10330bce85cb 89 {
DCchico 1:10330bce85cb 90
DCchico 1:10330bce85cb 91 }
DCchico 1:10330bce85cb 92
DCchico 1:10330bce85cb 93 int map_area()
DCchico 1:10330bce85cb 94 {
DCchico 1:10330bce85cb 95
DCchico 1:10330bce85cb 96 }
DCchico 1:10330bce85cb 97 MapItem* get_current(int x, int y)
DCchico 1:10330bce85cb 98 {
DCchico 1:10330bce85cb 99
DCchico 1:10330bce85cb 100 }
DCchico 1:10330bce85cb 101 MapItem* get_north(int x, int y)
DCchico 1:10330bce85cb 102 {
DCchico 1:10330bce85cb 103
DCchico 1:10330bce85cb 104 }
DCchico 1:10330bce85cb 105 MapItem* get_south(int x, int y)
DCchico 1:10330bce85cb 106 {
DCchico 1:10330bce85cb 107
DCchico 1:10330bce85cb 108 }
DCchico 1:10330bce85cb 109
DCchico 1:10330bce85cb 110 MapItem* get_east(int x, int y)
DCchico 1:10330bce85cb 111 {
DCchico 1:10330bce85cb 112
DCchico 1:10330bce85cb 113 }
DCchico 1:10330bce85cb 114
DCchico 1:10330bce85cb 115 MapItem* get_west(int x, int y)
DCchico 1:10330bce85cb 116 {
DCchico 1:10330bce85cb 117
DCchico 1:10330bce85cb 118 }
DCchico 1:10330bce85cb 119
DCchico 1:10330bce85cb 120 MapItem* get_here(int x, int y)
DCchico 1:10330bce85cb 121 {
DCchico 1:10330bce85cb 122
DCchico 1:10330bce85cb 123 }
DCchico 1:10330bce85cb 124
DCchico 1:10330bce85cb 125 void map_erase(int x, int y)
DCchico 1:10330bce85cb 126 {
DCchico 1:10330bce85cb 127
DCchico 1:10330bce85cb 128 }
DCchico 1:10330bce85cb 129
DCchico 1:10330bce85cb 130 void add_wall(int x, int y, int dir, int len)
DCchico 1:10330bce85cb 131 {
DCchico 1:10330bce85cb 132 for(int i = 0; i < len; i++)
DCchico 1:10330bce85cb 133 {
DCchico 1:10330bce85cb 134 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 135 w1->type = WALL;
DCchico 1:10330bce85cb 136 w1->draw = draw_wall;
DCchico 1:10330bce85cb 137 w1->walkable = false;
DCchico 1:10330bce85cb 138 w1->data = NULL;
DCchico 1:10330bce85cb 139 unsigned key = (dir == HORIZONTAL) ? XY_KEY(x+i, y) : XY_KEY(x, y+i);
DCchico 1:10330bce85cb 140 void* val = insertItem(get_active_map()->items, key, w1);
DCchico 1:10330bce85cb 141 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 142 }
DCchico 1:10330bce85cb 143 }
DCchico 1:10330bce85cb 144
DCchico 1:10330bce85cb 145 void add_plant(int x, int y)
DCchico 1:10330bce85cb 146 {
DCchico 1:10330bce85cb 147 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 148 w1->type = PLANT;
DCchico 1:10330bce85cb 149 w1->draw = draw_plant;
DCchico 1:10330bce85cb 150 w1->walkable = false;
DCchico 1:10330bce85cb 151 w1->data = NULL;
DCchico 1:10330bce85cb 152 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 153 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 154 }
DCchico 1:10330bce85cb 155
DCchico 1:10330bce85cb 156 void add_goodie(int x, int y)
DCchico 1:10330bce85cb 157 {
DCchico 1:10330bce85cb 158 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 159 w1->type = GOODIE;
DCchico 1:10330bce85cb 160 w1->draw = draw_goodie;
DCchico 1:10330bce85cb 161 w1->walkable = true;
DCchico 1:10330bce85cb 162 w1->data = NULL;
DCchico 1:10330bce85cb 163 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 164 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 165 }
DCchico 1:10330bce85cb 166
DCchico 1:10330bce85cb 167 void remove_goodie(int x, int y) // I'm lazy so overwrite it with a plant
DCchico 1:10330bce85cb 168 {
DCchico 1:10330bce85cb 169 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 170 w1->type = PLANT;
DCchico 1:10330bce85cb 171 w1->draw = draw_plant;
DCchico 1:10330bce85cb 172 w1->walkable = true;
DCchico 1:10330bce85cb 173 w1->data = NULL;
DCchico 1:10330bce85cb 174 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 175 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 176 }
DCchico 1:10330bce85cb 177
DCchico 1:10330bce85cb 178 void add_snake_body(int x, int y)
DCchico 1:10330bce85cb 179 {
DCchico 1:10330bce85cb 180 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 181 w1->type = SNAKE_BODY;
DCchico 1:10330bce85cb 182 w1->draw = draw_snake_body;
DCchico 1:10330bce85cb 183 w1->walkable = false;
DCchico 1:10330bce85cb 184 w1->data = NULL;
DCchico 1:10330bce85cb 185 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 186 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 187 }
DCchico 1:10330bce85cb 188
DCchico 1:10330bce85cb 189 void add_snake_head(int x, int y)
DCchico 1:10330bce85cb 190 {
DCchico 1:10330bce85cb 191 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 192 w1->type = SNAKE_BODY;
DCchico 1:10330bce85cb 193 w1->draw = draw_snake_head;
DCchico 1:10330bce85cb 194 w1->walkable = false;
DCchico 1:10330bce85cb 195 w1->data = NULL;
DCchico 1:10330bce85cb 196 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 197 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 198 }
DCchico 1:10330bce85cb 199
DCchico 1:10330bce85cb 200 void add_snake_tail(int x, int y)
DCchico 1:10330bce85cb 201 {
DCchico 1:10330bce85cb 202 MapItem* w1 = (MapItem*) malloc(sizeof(MapItem));
DCchico 1:10330bce85cb 203 w1->type = SNAKE_BODY;
DCchico 1:10330bce85cb 204 w1->draw = draw_snake_tail;
DCchico 1:10330bce85cb 205 w1->walkable = false;
DCchico 1:10330bce85cb 206 w1->data = NULL;
DCchico 1:10330bce85cb 207 void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1);
DCchico 1:10330bce85cb 208 if (val) free(val); // If something is already there, free it
DCchico 1:10330bce85cb 209 }