Project Echo

1
Project Echo

• Final Report

2
Initial Goal and Objectives

• 1. Create a basic weapon along the lines of the
  crowbar that also has mining capabilities
• 2. Create a basic entity that could be used to
  test the mining capability

3
The Pickaxe

• 1. Inserting new code for a pickaxe would not be
  detected by the game
• 2. Instead we decided to directly edit the
  crowbar file in the game

4
Modeling the Pickaxe

• Using Softimage, modeled
• very basic pick axe shape
• Copying the files over was
• never detected by the game

5
Possible explanations

• In the crowbar model directory there are several
  animation files perhaps each animation needs to
  be made manually rather than just the base model

6
Testing the Mineral

• Using Hammer, put together a small test area map
• The idea was to make a phys_obj entity that could
  be detected by the crowbar when the crowbar would
  hit it

7
Test Map
8
Problems with Hammer

• Making phys objects breakable was having
  trouble finding the function for it
• Most world models were missing from the list
• Instead used the item box to see if the crowbar
  could detect it

9
The Code

• Attempted to mess with the HandleAnimEventMeleeHit
  function
• Had problems figuring out how to refer to the
  entity that was being hit
• Tried to look at the baseEntity.cpp file and a
  couple of others, but I was too confused

10
Summary

• Most of the project was a bit too difficult
• The code wouldnt get detected, the model
  wouldnt go in, and the test map wouldnt work
• The size of the project file was an issue

11
Summary

• Learned how to use Softimage, Hammer
• Learned the general workings of a large 3D
  environment game such as Half Life 2