Titan's Trial

Watch the trailer here

Titan's Trial - A 2D Endless survival game - Brought to you by Team17 - Defiant Mortals

Attributions

Please see ATTRIBUTIONS.MD.

Write-up Milestone 4 (Final Game)

Changes from M3_Proposal can be seen highlighted in green in the M4_Proposal document. The additions/changes include:

• Story Elements
• Reloadability
• Advanced AI
• Complex prescribed motion
• Precise collision
• Game balance (read below)

A note on user interaction feedback

• Make sword always active or give it an attack animation
  • Decided not to because it's part of the functionality
• Create a super rare powerup to deal with the following enemy
  • Decided not to because it needs to be a constant nuisance throughout the level
• Lower attack cooldowns since higher levels are very difficult
  • More and better (powerful) weapons. Lower cooldowns, and higher damage
• Visual change to the background/stage to indicate difficulty change
  • Level indicator at bottom left and there's an overlay before endless mode
• Have some sort of end goal
  • Boss + endless for people who can beat the boss
• More enemies
  • Added boss + ghoul + boulder. Spitter was changed
• Make the sword better
  • Does more damage now (as it it more dangerous to use)
• Define the purpose of the score
  • Remove score until you reach the endless level
• Make grenade launcher shoot multiple grenades (or otherwise buff it since it's the slowest weapon to use)
  • Increased damage

A note on game balance

The game is based on a dynamic difficulty system, and a new run always starts at the lowest difficulty. Player death is permanent and results in starting from difficulty 1, as inspired by roguelike games. Difficulty increases through levels 1-4, followed by the boss level, and then an endless mode that is much harder. This is how we take care of balancing difficulty through enemies and weapons:

• Dynamic Difficulty Factor & Level

  • Enemy spawning frequency, kinds and numbers
  • Weapon spawning kinds and probability
  • Spitter shoots faster at higher difficulty

• Variable Enemy Health Value

  • Ranged enemy and combat enemy have different hp
  • Boulders can only be dstroyed by explosion (but with only one explosion)

• Variable Weapon Advantages

  • Weapons of mass destruction have longer cooldown time and higher damage (chaos orb grenade and orb rocket launcher)
  • Sword has the highest damage (due to high risk)
  • Weapons that go through platforms have lowest damage (beam staff)

• Boss Status

  • Boss has the highest HP
  • Boss can only be damaged by explosion
  • Boss have variable ways to attack and defence itself

M4 Features:

• Story Elements
  • world_init.cpp:
    • func createDialogue
  • render_system.cpp:
    • func drawDialogueLayer
  • world_system.cpp:
    • func connectDialogue
    • func show_dialogue
    • func effect_to_play
    • func step: - lines 295 - 344
  • physics_system.cpp:
    • func step - lines 151 - 172
• Precise Collision
  • physics_system.cpp - lines 19-123
• Complex prescribed motion
  • weapon_utils.cpp - lines 275 - 370 and 635-657
• Game Balance
  • enemy_utils.cpp
    • func adjust_difficulty
    • func do_enemy_spawn
  • enemy_utils.hpp
  • weapon_utils.cpp
    • func spawn_weapon
• Advanced AI (MDP)
  • enemy_utils.cpp - lines 514-651
• Reloadability
  • world_system.cpp
    • func save_game
    • func save_weapon
    • func load_game
    • step - lines 290-363
• Boss
  • enemy_utils.cpp - lines 322 - 472

Write-up Milestone 3

Changes from M2_Proposal can be seen highlighted in green in the M3_Proposal document. The changes include:

• Additional implementations
  • GUI for game data including current difficulty, player health, and score
  • Seperate out hitbox and sprite systems
  • Consistent game resolution (can resize, opens as windowed fullscreen)

M3 Features

• Complete GUI
  • world_init.cpp:
    • func createPlayerHeart
    • func createPowerUpIcon
    • func createDifficultyBar
    • func createDifficultyIndicator
    • func createScore
    • func createNumber
  • world_system.cpp:
    • func create_inGame_GUIs
    • func changeScore
    • func connectNumber
    • func step - lines 202-261
• More Weapons and Powerups
  • world_init.cpp:
    • func createRocketLauncher
    • func createRocket
    • func createGrenadeLauncher
    • func createGrenade
    • func createExplosion
    • func createHeart
    • func createPickaxe
    • func createWingedBoots
    • func createDashBoots
  • world_system.cpp:
    • func on_mouse_click
  • weapon_utils.cpp:
    • everything (refactored)
• New Path Finding Enemy
  • world_init.cpp:
    • func createFollowingEnemy
  • world_system.cpp:
    • func move_tracer
  • ai_system.cpp:
    • everything
• Parallax Background
  • world_init.cpp:
    • func createParallaxItem
  • world_system.cpp:
    • func create_parallax_background
• Powerful Debugging System
  • world_system.cpp:
    • func on_key - lines 1002-1045, 1066-1080
• Total Collision and World System Refactoring
  • world_system.hpp:
    • everything
  • world_system.cpp:
    • func handle_collision
  • physics_system.cpp:
    • everything
• Hitbox/sprite refactoring (smaller changes to most systems)
  • world_init.hpp - lines 28-76
• Complete Tutorial
  • world_system.cpp:
    • create_almanac_screen
  • world_init.cpp:
    • createTooltip
• Different Resolutions
  • world_system.cpp:
    • create_window: lines 101-104
    • on_mouse_move
  • render_system.cpp:
    • drawToScreen: lines 250-265
    • drawScreenLayer

Write-up Milestone 2

Changes from M1_Proposal_V2 can be seen highlighted in green in the M2_Proposal document. The changes include:

• Instead of adding a boulder as an enemy we decided to make the spitter which shoots a bouncing projectile
• Instead of adding simple path finding, we started working on that with the intention of completing it in milestone 3
  • For our creative component, we pivoted to simple rendering effects, including a screen darkening effect on pause and a pulse effect when the hero is hit
• Early and additional implementations
  • Title screen
  • Simple path finding was started

M2 Features

• Button System
  • world_init.cpp:
    • func createButton
  • render_system.cpp:
    • func drawTextureMesh - lines 82-90
  • world_system.cpp:
    • func on_mouse_click
  • button.fs.glsl
  • button.vs.glsl
• Pause System
  • world_init.cpp:
    • func createHelperText
  • world_system.cpp:
    • func change_pause
  • main.cpp:
    • func main - lines 43-53
• screen.fs.glsl
• screen.vs.glsl
• Spitter Enemy
  • world_system.cpp:
    • func small_spitter_enemy
  • world_init.cpp:
    • func createSpitterEnemy
    • func createSpitterEnemyBullet
  • physics_system.cpp:
    • func step - lines 207-246
• Main Menu
  • world_init.cpp:
    • func createTitleText
  • world_system.cpp:
    • func create_help_screen
    • func create_title_screen
• Projectile Weapon:
  • weapon_utils.cpp
    • everything
  • physics_system.cpp
    • func collides - lines 17-49
• Dynamic Difficulty System
  • world_system.cpp:
    • func step - lines 172-200 268-282
• Health Bar + Invulnerability
  • world_system.cpp:
    • func handle_collision - lines 586-612
  • render_system.cpp:
    • drawTextureMesh - lines 68-73
  • hero.fv.glsl

---

Write-up Milestone 1

There were few changes that we had to implement to our previous proposal, all changes can be seen highlighted in green in the M1_Proposal_V2 document. The changes include:

• Clarification on enemy - player collision
• Early implementations
  • Mouse + space for weapon use forgoing arrow keys
  • Some improved movement options (double jump + wall jump)
    • To allow better traversal of the level
  • Rudementary scoring system
• Added creative elements
  • Player movement animations
  • Audio Feedback

Features

• Map asset
  • data/textures/background.png
  • world_init.cpp :
    • func createBackground
• Collision with platform and Boundary
  • physics_system.cpp :
    • func collides
• Map collision placement
  • world_init.cpp :
    • function createBlock
  • world_system.cpp :
    • func restart_game - lines 410-440
  • render_system.cpp :
    • func drawTexturedMesh - lines 78-88
• Player movement
  • world_system.cpp :
    • func on_key - lines 552-589
    • func motion_helper
• Player gravity
  • physics_system.cpp :
    • func step - lines 86-89
• Double Jump + Wall Jump
  • world_system.cpp:
    • func on_key - lines 581-589
    • func handle_collisions - lines 490-498
• Random Movement enemy
  • world_init.cpp :
    • func createEnemy
  • world_system.cpp :
    • func step - lines 283-333
• Random sword spawn
  • world_system.cpp :
    • func step - lines 335-345
    • func handle_collisions - lines 500-517
• Sword and collision with enemy
  • world_system.cpp :
    • func on_key - lines 591-602
    • func handle_collisions - lines 518-528
    • func on_mouse_move
    • func step - lines 200-263
• Sprite Animation
  • render_system.cpp :
    • func drawTexturedMesh - line 59-66
  • world_init.cpp :
    • func createHero - lines 21-24
  • world_system.cpp:
    • func step - lines 265-281
  • animated.fs.glsl
  • animated.vs.glsl