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spec.md

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Project SPEC

File Structure

  • Geo-War
    • src
      • main.cpp
      • Game.cpp
      • Vec2.cpp
      • Entity.cpp
      • EntityManager.cpp
      • Components.h

Feature Requirements

  • Player

    • represented by a shape
    • spawns in the centre of the game
    • move by a speed read from the config file
    • confined within the window
    • shoot a bullet to the direction where the mouse is clicked
      • the speed, size and life span is in the config file

  • Special Ability

    • design your own
    • fired when the right button clicked
    • the ability MUST:
      • Multiple entities (bullets etc.)
      • Entities have some unique graphic effect
      • A unique game mechanic is intro via a new component
      • 'A cooldown timer' needed

// Create a robot that generates temporary razer toward the closest enemy // The razar shoots once with a cooldown time // The robot is destroyed when collide with any enemies after 5 times; // 30s cooldown time for a new robot, two robot cannot exist at the same time

  • Enemies
    • spawn in random location every X(defined in conf) frames
    • cannot overlap the sides of the screen
    • have random number of vertices, between a minimum and maximum (conf)
    • shape radius (conf)
    • random spawn spawn color
    • random speed upon spawning, between a min and max (conf)
    • when reach the edge of the window, should bounce off
    • BEHAVIOUR:
      • When large enemy collide with a bullet or playerl, destroyed
      • Then spawn N small enemies in its place (N = vertices)
      • Each small enemy must have the same shape and colour
      • The small enemies travel outward at angles at a fixed interval equals to (360 / vertices)
      • The small enemies have half of the radius to the original entity

Collision

  • Bullet <-> Shape
    • The bullet destroyed first
    • Then the shape

Scoring

  • Each time an enemy spawns, given a score component of N * 100 (N = vertices)
  • If player kills an enemy, the score is increased
  • Score should displayed on the top left corner with the specified font from config

Drawing

  • All entities should be given a slow rotation

Key Input

  • 'P' := pause
  • 'ESC' := exit

Configuration File

Window [Width] [Height] [FrameLimit] [FullScreen]
Font [Font] [Size] [R] [G] [B]
Player [ShapeRadius] [Collision Radius] [Speed] [FillColor(R,G,B)] [OutlineColor(R,G,B)] [OutlineThickness] [ShapeVertices(N)]
Enemy [SR] [CR] [MinSpeed] [MaxSpeed] [OutlineColor(R,G,B)] [OutlineThickness] [MinVertices] [MaxVertices] [SmallShapeLifespan] [SpawnInterval(Frame:int)]
Bullet [SR] [CR] [Speed] [FC] [OC] [OT] [Vertices] [Lifespan]