package game

import "core:fmt"
import rl "vendor:raylib"
import rand "core:math/rand"
import "core:strconv"
import "core:mem"
import "core:strings"


player : Player
world : World

camera : rl.Camera2D

main :: proc() {

    rl.InitWindow(1280, 720, "Odin game")
    flags : rl.ConfigFlags = {.VSYNC_HINT} 
    rl.SetConfigFlags(flags)

    rl.SetTargetFPS(60)

    player.position.x = CELL_SIZE * 5
    player.position.y = CELL_SIZE * 5
    player.mode = .INTERACT

    camera.target = {player.position.x + (CELL_SIZE / 2), player.position.y + (CELL_SIZE / 2)}
    camera.zoom = 2
    camera.offset = {f32(rl.GetScreenWidth()) / 2, f32(rl.GetScreenHeight()) / 2}

    load_tilemap()
    defer unload_tilemap()

    fill_world_grid_with_nothing(&world)

    place_random_trees(&world)

    game_loop()
}

game_loop :: proc() {

    pos_string : string
    pos_cstring : cstring

    for !rl.WindowShouldClose() {

        update()

        rl.BeginDrawing()
        rl.ClearBackground(rl.BLACK)
        rl.BeginMode2D(camera)

        draw()

        rl.EndMode2D()
        
        rl.DrawFPS(5,5)

        player_grid_pos := get_player_grid_position(&player)
        player_grid_pos_tile := get_grid_tile(&world, vec2_to_vec2i(player_grid_pos))
        status_string := rl.TextFormat("POS: %v : %v | MODE: %v", player_grid_pos, player_grid_pos_tile.type, player.mode)

        rl.DrawText(status_string, 5, 25, 20, rl.RED)


        rl.EndDrawing()
    }
    
    delete(pos_string)
    delete(pos_cstring)
}

update :: proc() {
    
    handle_player_input(&player, &world)
    handle_window_resize()
    camera.target = {player.position.x + (CELL_SIZE / 2), player.position.y + (CELL_SIZE / 2)}

}

draw :: proc() {
    draw_world(&world)
    draw_player(&player)
}

handle_window_resize :: proc() {
    if rl.IsWindowResized() {
        camera.offset = {f32(rl.GetScreenWidth()) / 2, f32(rl.GetScreenHeight()) / 2}
    }
}

print_grid :: proc() {
    for x in 0..< len(world.grid) {
        for y in 0..< len(world.grid) {
            fmt.printfln("[%d, %d] %v", x, y, world.grid[x][y].type)
        }
    } 
}