#include "isometricMap.h"
#include <stdio.h>
#include <stdlib.h>
#include "tile.h"
#include "raymath.h"
#include "raylib.h"

IsometricMap * IsometricMapInit(int x, int y){
    IsometricMap* map = (IsometricMap *) malloc(sizeof(IsometricMap));
    map->tileTextures[0] = LoadTexture("assets/grass.png");
    map->tileTextures[1] = LoadTexture("assets/tower.png");

    map->originX = 0;
    map->originY = 0;
    map->width = x * map->tileTextures[0].width;
    map->height = y * map->tileTextures[0].height;

   Tile* tiles[x];
   int n = 0;
   for(n=0; n<x; n++){
        tiles[n] = (Tile*)malloc(y*sizeof(Tile));
   }

    map->sizeX = x;
    map->sizeY = y;

    int i = 0;
    int j = 0;
    
    for(i=0; i < x; i++){
        for(j=0; j < y; j++){
            if(i != j){
                Tile tmp = {0, i, j};
                tiles[i][j] = tmp;
            }
            else{
                Tile tmp = {1, i, j};
                tiles[i][j] = tmp;
            }
        }
    }
    map->tiles = tiles;

    return map;
}


Vector2 * IsometricMapCalcOffsetForTileAt(int x, int y, int textureSize){
    
    Vector2* offset = (Vector2 *)malloc(sizeof(Vector2));

    offset->x = x * textureSize/2;
    offset->y = x * textureSize/4;

    offset->x -= y * textureSize/2;
    offset->y += y * textureSize/4;

    return offset;
}

Tile * IsometricMapGetTileFromArrayPosition(IsometricMap *map, int x, int y){
    return &(map->tiles[x][y]);
}

void IsometricMapProject(IsometricMap *isometricMap, Camera2D *camera, int x, int y, Vector2 *tmp){

    float tileWidthHalf = isometricMap->tileTextures[0].width / 2;
    float tileHeightHalf = isometricMap->tileTextures[0].height / 2;

    x += camera->target.x;
    y += camera->target.y;

    float xPos = (float) x;
    float yPos = (float) y;

    int isoX = 0.5 * ( xPos / tileWidthHalf + yPos / tileHeightHalf);
    int isoY = 0.5 * ( -xPos / tileWidthHalf + yPos / tileHeightHalf);


    //Vector2 tmp = {isoX * tileWidthHalf * 2, isoY * tileHeightHalf * 2};
    //Vector2* tmp = (Vector2 *) malloc(sizeof(Vector2));
    tmp->x = isoX;
    tmp->y = isoY;

    //return tmp;
}