#include "app.h"

const TextureAsset enemiesTextureAssets[ENEMIES_TEX_COUNT] = {
    {"assets/ship_start.png", 16.0f, 16.0f, 90.0f}};

Enemies CreateEnemies(void) {
  Enemies enemies = {.count = MAX_ENEMIES};
  TextureAsset textureAsset = enemiesTextureAssets[BOAT];
  Texture2D texture = LoadTexture(textureAsset.path);
  float frameWidth = textureAsset.frameWidth;
  float rotation = textureAsset.rotation;

  for (int i = 0; i < enemies.count; i++) {
    enemies.sprite[i] = (Sprite){
        .texture = texture,
        .frameSize = {frameWidth, frameWidth},
        .sourceRec = {0.0f, 0.0f, frameWidth, frameWidth},
        .destRec = {GetScreenWidth() / 2, 0.0f, frameWidth, frameWidth},
        .origin = {frameWidth / 2, frameWidth / 2},
        .rotation = rotation,
        .color = WHITE};

    enemies.animation[i] = (Animation){.state = 1,
                                       .currentFrame = 0,
                                       .maxFrame = 2,
                                       .framesCounter = 0,
                                       .framesSpeed = 2.0f,
                                       .animTimer = 0.0f};

    Rectangle cameraRec = GetCameraRectangle();

    enemies.physics[i] =
        (Physics){.position = GetPositionOutsideRectangle(cameraRec, 100, 1000),
                  .direction = (Vector2){0.0f, 0.0f},
                  .speed = 5.0f};

    enemies.arrived[i] = true;
    enemies.destPos[i] = (Vector2){0.0f, 0.0f};
    enemies.alive[i] = true;
  }

  return enemies;
}

void UpdateEnemies(Enemies *enemies, Projectiles *projectiles) {
  Camera2D *camera = GetCamera();
  Rectangle cameraRec = GetCameraRectangle();

  for (int i = 0; i < enemies->count; i++) {
    if (enemies->alive[i]) {
      
      for (int j = 0; j < projectiles->count; j++){
        if (!projectiles->active[j]) continue;
        if (CheckCollisionCircleRec(projectiles->physics[j].position, projectiles->radius[j], enemies->sprite[i].destRec)){
          enemies->alive[i] = false;
          break;
        }
      }

      if (enemies->arrived[i]) {
        enemies->destPos[i] = GetPositionOutsideRectangle(cameraRec, 100, 1000);
        enemies->arrived[i] = false;
      }
      if (CheckCollisionPointCircle(enemies->physics[i].position,
                                    enemies->destPos[i], 10.0F)) {
        enemies->arrived[i] = true;
      }
      if (GetDistanceBetweenTwoVectors(enemies->physics[i].position,
                                      camera->target) > 1000) {
        enemies->physics[i].position =
            GetPositionOutsideRectangle(cameraRec, 100, 1000);
      }
      Vector2 dir = GetDirectionBetweenTwoVectors(enemies->physics[i].position,
                                                  enemies->destPos[i]);
      UpdatePhysics(&enemies->physics[i], dir);
      UpdateSpriteDestRec(&enemies->sprite[i], &enemies->physics[i].position);
      float rotation = Vector2ToRotation(dir);
      UpdateSpriteRotation(&enemies->sprite[i], rotation + 90.0f);
      UpdateAnimation(&enemies->animation[i], GetFrameTime());
      UpdateSpriteSourceRec(&enemies->sprite[i],
                            &(Vector2){enemies->sprite[i].frameSize.x *
                                          enemies->animation[i].currentFrame,
                                      enemies->sprite[i].frameSize.y});
    }
  }
}

void RenderEnemies(Enemies *enemies) {
  for (int i = 0; i < enemies->count; i++) {
    if (enemies->alive[i]){
      RenderSprite(&enemies->sprite[i]);
    }
  }
}