Add basic map pin functionality

- Define Point structure for 3D coordinates
- Add map pin type constants
- Implement placeholder functions for:
  * Player location loading
  * Map pin addition
  * Pin counting
- Foundation for Korok seed tracking

source/map_basic.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <math.h>
+#include <switch.h>
+#include "map_basic.h"
+
+static Point player_location = {0};
+
+void loadPlayerLocation() {
+    printf("Loading player location...\n");
+    // TODO: Read player position from save data
+    player_location.x = 0.0f;
+    player_location.y = 0.0f; 
+    player_location.z = 0.0f;
+    printf("Player at: (%.1f, %.1f, %.1f)\n", 
+           player_location.x, player_location.y, player_location.z);
+}
+
+void addMapPin(u32 icon, Point location) {
+    printf("Adding map pin at (%.1f, %.1f, %.1f)\n", 
+           location.x, location.y, location.z);
+    // TODO: Implement map pin addition to save data
+}
+
+void countMapPins() {
+    printf("Counting map pins...\n");
+    // TODO: Count existing pins in save data
+    printf("Found 0 map pins\n");
+}

source/map_basic.h

@@ -0,0 +1,22 @@
+#ifndef MAP_H
+#define MAP_H
+
+#include <stdlib.h>
+#include <switch.h>
+
+#define MAP_PIN_STAR 0x1F
+#define MAP_PIN_LEAF 0x22
+#define MAP_PIN_EMPTY 0xFFFFFFFF
+
+typedef struct {
+    u32 hash;
+    float x;
+    float y;
+    float z;
+} Point;
+
+void loadPlayerLocation();
+void addMapPin(u32 icon, Point location);
+void countMapPins();
+
+#endif