Still won't work
Dependencies: mbed wave_player 4DGL-uLCD-SE MMA8452
map.cpp
- Committer:
- jtrux
- Date:
- 2019-04-12
- Revision:
- 5:142e66c8a7fa
- Parent:
- 4:237c791cc5c0
File content as of revision 5:142e66c8a7fa:
#include "map.h" #include "globals.h" #include "graphics.h" /** * The Map structure. This holds a HashTable for all the MapItems, along with * values for the width and height of the Map. */ struct Map { HashTable* items; int w, h; }; /** * Storage area for the maps. * This is a global variable, but can only be access from this file because it * is static. */ static Map map; static int active_map; /** * The first step in HashTable access for the map is turning the two-dimensional * key information (x, y) into a one-dimensional unsigned integer. * This function should uniquely map (x,y) onto the space of unsigned integers. */ static unsigned XY_KEY(int X, int Y) { // TODO: Fix me! return X + (Y*map_height()); } /** * This is the hash function actually passed into createHashTable. It takes an * unsigned key (the output of XY_KEY) and turns it into a hash value (some * small non-negative integer). */ unsigned map_hash(unsigned key) { // TODO: Fix me! return key%50; } void maps_init() { // TODO: Implement! // Initialize hash table // Set width & height HashTable* ht = createHashTable(map_hash, 50); map.items = ht; map.w = map_width(); map.h = map_height(); } Map* get_active_map() { // There's only one map return ↦ } Map* set_active_map(int m) { active_map = m; return ↦ } void print_map() { // As you add more types, you'll need to add more items to this array. char lookup[] = {'W', 'P'}; for(int y = 0; y < map_height(); y++) { for (int x = 0; x < map_width(); x++) { MapItem* item = get_here(x,y); if (item) pc.printf("%c", lookup[item->type]); else pc.printf(" "); } pc.printf("\r\n"); } } int map_width() { return 50; } int map_height() { return 50; } int map_area() { return map_width()*map_height(); } MapItem* get_north(int x, int y) { unsigned int ynew = y-1; return (MapItem*)getItem(map.items,XY_KEY(x,ynew)); } MapItem* get_south(int x, int y) { unsigned int ynew = y+1; return (MapItem*)getItem(map.items,XY_KEY(x,ynew)); } MapItem* get_east(int x, int y) { unsigned int xnew = x+1; return (MapItem*)getItem(map.items,XY_KEY(xnew,y)); } MapItem* get_west(int x, int y) { unsigned int xnew = x-1; return (MapItem*)getItem(map.items,XY_KEY(xnew,y)); } MapItem* get_here(int x, int y) { return (MapItem*)getItem(map.items,XY_KEY(x,y)); } void map_erase(int x, int y) { } void add_wall(int x, int y, int dir, int len) { for(int i = 0; i < len; i++) { MapItem* w1 = (MapItem*) malloc(sizeof(MapItem)); w1->type = WALL; w1->draw = draw_wall; w1->walkable = false; w1->data = NULL; unsigned key = (dir == HORIZONTAL) ? XY_KEY(x+i, y) : XY_KEY(x, y+i); void* val = insertItem(get_active_map()->items, key, w1); if (val) free(val); // If something is already there, free it } } void add_plant(int x, int y) { MapItem* w1 = (MapItem*) malloc(sizeof(MapItem)); w1->type = PLANT; w1->draw = draw_plant; w1->walkable = true; w1->data = NULL; void* val = insertItem(get_active_map()->items, XY_KEY(x, y), w1); if (val) free(val); // If something is already there, free it }