1 files changed, 146 insertions, 0 deletions
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..086a093
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,146 @@
+#include <curses.h>
+#include <locale.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include "cavegen.h"
+#include "common.h"
+#include "display.h"
+#include "entity.h"
+#include "ht.h"
+
+bool entity_set_pos(struct entity *e, struct point p, struct map *map)
+{
+    if (e->solid) {
+        if (p.y < 0 || p.x < 0 || p.y >= map->height || p.x >= map->width) {
+            return false;
+        }
+        if (map->map[p.y * map->width + p.x] == WALL) {
+            return false;
+        }
+    }
+
+    e->p = p;
+
+    return true;
+}
+
+bool game_update(
+    display_t *disp, enum action action, ht_t *entities, struct map *map
+)
+{
+    struct entity *player = ht_find(entities, "player");
+    struct entity *camera = ht_find(entities, "camera");
+
+    struct point newp     = player->p;
+    struct point newp_cam = camera->p;
+    switch (action) {
+    case ACTION_EXIT : return true;
+    case ACTION_UP :
+        --newp.y;
+        --newp_cam.y;
+        display_message(disp, "moving up");
+        break;
+    case ACTION_DOWN :
+        ++newp.y;
+        ++newp_cam.y;
+        display_message(disp, "moving down");
+        break;
+    case ACTION_LEFT :
+        --newp.x;
+        --newp_cam.x;
+        display_message(disp, "moving left");
+        break;
+    case ACTION_RIGHT :
+        ++newp.x;
+        ++newp_cam.x;
+        display_message(disp, "moving right");
+        break;
+    case ACTION_STAIR_DOWN :
+        if (map->map[player->p.y * map->width + player->p.x] == DOWN_STAIR) {
+            free(map->map);
+            create_cave(map);
+
+            newp       = map->entry_point;
+            newp_cam.x = map->entry_point.x - MAIN_PANEL_WIDTH / 2 + 1;
+            newp_cam.y = map->entry_point.y - MAIN_PANEL_HEIGHT / 2 + 1;
+            display_message(disp, "moving down stairs");
+        } else {
+            display_message(disp, "no stairs to go down");
+        }
+        break;
+    case ACTION_STAIR_UP :
+        if (map->map[player->p.y * WIDTH + player->p.x] == UP_STAIR) {
+            display_message(disp, "moving up stairs");
+            return true;
+        } else {
+            display_message(disp, "no stairs to go up");
+        }
+        break;
+    default : display_message(disp, "unrecognized command"); break;
+    }
+
+    if (entity_set_pos(player, newp, map))
+        entity_set_pos(camera, newp_cam, map);
+
+    return false;
+}
+
+int main(void)
+{
+    unsigned int seed = time(NULL);
+    srand(seed);
+
+    display_t *disp = display_init();
+
+    // create the map
+    struct map map;
+    create_cave(&map);
+
+    // create the entity map
+    ht_t *entities = ht_create(1);
+
+    // create the camera
+    struct entity camera;
+    camera.disp_ch = "";
+    camera.solid   = false;
+    camera.visible = false;
+    ht_insert(entities, "camera", &camera);
+
+    // create the player
+    struct entity player;
+    player.disp_ch = "@";
+    player.solid   = true;
+    player.visible = true;
+    ht_insert(entities, "player", &player);
+
+    // set starting point
+    struct point cam_p = {
+        .x = map.entry_point.x - MAIN_PANEL_WIDTH / 2 + 1,
+        .y = map.entry_point.y - MAIN_PANEL_HEIGHT / 2 + 1,
+    };
+    entity_set_pos(&player, map.entry_point, &map);
+    entity_set_pos(&camera, cam_p, &map);
+
+    // start displaying things
+    display_map(disp, &map, entities);
+    display_instructions(disp);
+    display_status(disp, &player);
+    display_message(disp, "");
+
+    int  ch;
+    bool done = false;
+    while (!done) {
+        enum action action = display_process_input();
+        done               = game_update(disp, action, entities, &map);
+        display_map(disp, &map, entities);
+    }
+
+    free(map.map);
+    ht_destroy(entities);
+    display_destroy(disp);
+
+    endwin();
+
+    return 0;
+}