{"author_name":"Gipzo","cat":"LD #37","comments":[],"epoch":1482157740,"likes":3,"metadata":{"p_key":"898","p_author":"Gipzo","p_authorkey":"32280","p_urlkey":"35745","p_title":"Swinging the axe \u2013 Attack Animation HowTo","p_cat":"LD #37","p_event":"LD37","p_time":"1482157740","p_likes":"3","p_comments":"0","p_status":"UPD5","us_key":"32280","us_name":"Gipzo","us_username":"gipzo","event_start":"1481241600","event_key":"81","event_name":"Ludum Dare 37"},"text":"

Hello again,<\/p>\n

I’m continuing postmortem posts about our game – Cure4Life<\/a>.<\/p>\n

And in this post I want to explain how we did axe attack animation.
\n Other weapons behave simpler as they don’t have any animation at all \":)\"<\/p>\n

\"title\"<\/a><\/p>\n

<\/span><\/p>\n

Unity 5.5 project archive<\/a><\/p>\n

Hierarchy<\/h4>\n

First, let me show\u00a0how weapons are connected to the Player and how each Weapon is organised:<\/p>\n

\"hierarchy\"<\/p>\n

Hero has Weapons\u00a0<\/em>game object that is positioned in the middle of his chest.
\n This way\u00a0Weapons\u00a0<\/em>object can be rotated to aim weapon in some particular direction:<\/p>\n

\"weapon_rotation\"
\n (red dot is the pivot position of Weapons object)<\/em><\/p>\n

This position is independent of weapon animation and it is also useful to know our weapon aiming to decide which enemies we hit \":)\"<\/p>\n

Inside Weapons<\/em> game object we have separate objects for each weapon.
\n Each weapon contains separate object for it’s sprite and other effects.<\/p>\n

For example this is Cure4Life hierarchy:<\/p>\n

\"cure4life_hierarchy\"<\/p>\n

Animation<\/h4>\n

Animation-wise axe is simple:<\/p>\n

We have 3 animation:<\/p>\n

    \n
  1. Idle – just one frame<\/li>\n
  2. AxeSwing1 – axe swings from top to bottom<\/li>\n
  3. AxeSwing2 – axe swings from bottom to the top<\/li>\n <\/ol>\n

    \"axe_swing_1\" \u00a0 \u00a0\"axe_swing_2\"<\/p>\n

    The interesting part is Animation controller.<\/p>\n

    We added Fire trigger and set up\u00a0Idle animation as default.
    \n There are 3 transitions: Idle->AxeSwing2, AxeSwing2->AxeSwing1, AxeSwing1->AxeSwing2.
    \n They all are configured the same:<\/p>\n

    \"axe_animation_trigger\"
    \n No exit time, zero transition duration and they are activated on Fire trigger.
    \n This way, each time Fire is triggered, animation will switch between AxeSwing1 and AxeSwing2:<\/p>\n

    \"animation_controller\"<\/p>\n

    Particle System<\/h4>\n

    Another crucial part of attack animation is swing particles:<\/p>\n

    \"swing_particles\"<\/p>\n

    This is done mostly with default particle system and particle texture, which consists of 4 frames.<\/p>\n

    Here are axe’s swing particle system setting with some explanation:<\/p>\n

    \"particles_rotation\"<\/p>\n

    \"particles\"<\/p>\n

    \"particles_animation\"<\/p>\n

    \"particles_renderer\"<\/p>\n

    Making it Move<\/h4>\n

    Activating animation and particle system is pretty simple:<\/p>\n 

    Animator.SetTrigger (\"Fire\");\n Particles.Emit (Random.Range (1, 3));\n <\/pre>\n 
    Add some timeouts and input logic and we get this:<\/p>\n 
    \"final_result\"<\/p>\n 
    I hope this post is somewhat useful \":)\"
    \n Here full Unity 5.5 project archive –     Download Sample Project<\/a>.<\/p>\n 
    P.S. Don’t forget to play, rate and comment our game –\u00a0Cure4Life<\/a>\u00a0\ud83d\ude09<\/p>\n \n 
    Tags: LD37<\/a>, postmortem<\/a>, unity<\/a><\/p>","time":"December 19th, 2016 9:29 am","title":"Swinging the axe \u2013 Attack Animation HowTo"}