An Unrealistic Spaceship Simulator

A top-down shooter made using this template.

This project is a top-down shooter where bullets bounce off the edges of obstacles, edges of the map. The game is structured in waves of enemies where the player needs to clean the current wave to go to the next one. An interesting feature of the project is that a game designer(or a player) could modify the json files of the project with little to no programming experience, thus, changing the waves of enemies as well as the properties of enemies themselves such as health, speed damage and so on.

There are different types of enemies, the wave system uses weight and a list of possible enemies. Every enemy has a specific weight, so a wave could have many combinations of enemies depending on the list. This makes it flexible and gives spawning a little randomization.

Players can change the waves of enemies by modifying this json file.

Libraries used:

• Sound is made implemented by using SDL_mixer:https://github.com/libsdl-org/SDL_mixer
• This library is used for parsing the json files:https://github.com/nlohmann/json

Graphics used:

• https://www.kenney.nl/assets/simple-space,

• https://arcadeisland.itch.io/space-shooter-wang-tiles

• https://fliflifly.itch.io/hearts-and-health-bar

• https://www.bfxr.net (sounds)

Guideline for modifying the enemy waves:

• every wave needs to have:
  • a weight that is a positive integer
  • array of enemy types from the list below
  • Note that this may still result in an invalid json file if the enemy types have typos
  • If the game does not start and does not throw any error, there is most probably a problem parsing the json files into the game
• the code does not add duplicates to the current wave when it does the parsing, when it encounters a duplicate in the same wave it will skip over it
• When the last wave it is completed, it starts from the beginning but increases the weight for every wave. This happens every time the player reaches the end

Enemy Types:

• Runner
  • behaves like a projectile, but it only damages the player on contact
• Hoarder
  • goes in the direction of the player, it reflects on obstacles, it tends to be pretty fast and moves past the player, it also damages it on contact
• Shooter
  • tries to stay in the center of the screen, while shooting runners around it, it also reflects on obstacles
• Shielder
  • spawns runners and hoarders around it, tries to stay in the center of the screen like the shooter and has a shield that protects it from player's bullets, can be killed by having bullets bounce on obstacles and hit shielders fron a different angle

Score:

Every enemy has a score attached to it(in the JSON files), in a wave, every killed enemy will grant the player the corresponding score. At the end of the wave, the multiplier is set to 1. If the player was not hit this wave, the multiplier is incremented, also if the accuracy of the player is high this will also increment the multiplier. For instance, if one has made 50 points at the end of the wave and was not hit at all, but had poor accuracy, his multiplier will be 2, thus the score will be set to 100. Had the accuracy been high, the score would have been 150.

Playable on itch

License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.