{"id":2518,"date":"2013-11-13T00:21:54","date_gmt":"2013-11-12T21:21:54","guid":{"rendered":"http:\/\/unitycoder.com\/blog\/?p=2518"},"modified":"2013-11-13T12:08:38","modified_gmt":"2013-11-13T09:08:38","slug":"convert-old-project-to-new-2d-physics-and-sprites","status":"publish","type":"post","link":"https:\/\/unitycoder.com\/blog\/2013\/11\/13\/convert-old-project-to-new-2d-physics-and-sprites\/","title":{"rendered":"Convert old project to 2D physics & Sprites"},"content":{"rendered":"

\"sprite_renderer_unity\"<\/p>\n

Started converting this shootemup test into Unity 4.3 2D physics ( old: http:\/\/unitycoder.com\/blog\/2013\/09\/27\/shoot-em-up-proto-unity\/<\/a> )<\/p>\n

Webplayer:<\/strong> (using new 2D physics & sprites, no collider on player yet)
\nhttp:\/\/unitycoder.com\/upload\/demos\/Shmup3_2D\/<\/a><\/p>\n

Some conversion notes so far:<\/p>\n

SHMUP TO 2D SYSTEM<\/strong><\/p>\n

Lets test..<\/p>\n

2D viewport Enabled!<\/p>\n

Camera:<\/strong><\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Setup Camera for Pixel Perfect graphics: http:\/\/forum.unity3d.com\/threads\/210329-Unity-4-3-Tips-amp-Workarounds?p=1415249&viewfull=1#post1415249<\/a><\/p>\n

Player:<\/strong><\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Rename old \u201cPlayerShip1\u201d to \u201cPlayerShip1Old\u201d, disable it<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Take player ship image, set its type to Sprite<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GameObject \/ Create other \/ Sprite<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Rename this gameobject as \u201cPlayerShip1\u201d<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Copy my playercontroller script component to this \u201cPlayerShip1\u201d<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Adjust speed (it was 255, now 3 is enough, since sprite is 1×1, instead of 64×64)<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Add 2 empty gameobjects as child, \u00a0for GunPivot and LaserPivot, and position them<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Assign those pivots to playercontroller script variables<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Set gameobject Tag & Layer<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Create new prefab from \u201cPlayerShip1\u201d (drag it to project folder)<\/p>\n

Player Bullets:<\/strong><\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Take our bullet image, set its type to Sprite (default settings as above)<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GameObject \/ Create other \/ Sprite<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Rename this gameobject as \u201cSpriteBullet1\u201d<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Copy my bulletcontroller script component to this \u201cSpriteBullet1\u201d<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Create prefab from this \u201cSpriteBullet1\u201d<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Assign that prefab to playercontroller as a bullet prefab<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ** something happened, sprite (image) is missing from the prefab **<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Lets assign the bullet image(sprite) to it again from assets<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Old bullet had box collider & rigidbody..<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 So lets add BoxCollider2D and RigidBody2D<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Adjust BoxCollider2D size<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Set Rigidbody2D gravityscale to 0 (it was 1, and bullet was falling down..)<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Old bulled was moved with transform.Translate() inside Update(), remove that.<\/p>\n

–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 So lets try just RigidBody2D.Velocity after instantiate, just add 1 line (and 1 speed variable)<\/p>\n

 clone.rigidbody2D.velocity = Vector2.right*bulletSpeed;<\/pre>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Set bullet gameobject Tag & Layer<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Bullets are colliding to eachother..<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Need to set Project Settings \/ Physics2D \/ Layer Collision Matrix (I had set these for Physics also, for not allowing player bullet to player bullet collisions)<\/p>\n
Enemy:<\/strong><\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Take our bullet image, set its type to Sprite (default settings as before)<\/p>\n
–\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 GameObject \/ Create other \/ Sprite<\/p>\n
    \n
  • Note: If you have that sprite already selected, it will be assigned to this sprite gameobject<\/li>\n<\/ul>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Rename this gameobject (sprite) as \u201cEnemy1\u201d<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Copy my enemycontroller script component to this \u201cEnemy1\u201d<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Old enemy had box collider and transform.Translate() movement<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Lets add BoxCollider2D<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Adjust BoxCollider2D size<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Set \u201cEnemy1\u201d gameobject Tag & Layer<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ** hmm bullets collide to enemy, but wont do any damage.. **<\/p>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Ok, had to replace this line in bulletcontroller:<\/p>\n
    void OnCollisionEnter(Collision collision)<\/pre>\n
    with:<\/p>\n
    void OnCollisionEnter2D(Collision2D collision)<\/pre>\n
    –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Adjust explosion particle system size to smaller<\/p>\n
    \u2026<\/p>\n","protected":false},"excerpt":{"rendered":"
    Started converting this shootemup test into Unity 4.3 2D physics ( old: http:\/\/unitycoder.com\/blog\/2013\/09\/27\/shoot-em-up-proto-unity\/ ) Webplayer: (using new 2D physics & sprites, no collider on player yet) http:\/\/unitycoder.com\/upload\/demos\/Shmup3_2D\/ Some conversion notes so far: SHMUP TO 2D SYSTEM Lets test.. 2D viewport Enabled! Camera: –\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Setup Camera […]<\/p>\n","protected":false},"author":1,"featured_media":2519,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[148,3],"tags":[65,566,565,228,141,558,357],"class_list":["post-2518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-help","category-unity3d","tag-2d","tag-4-3","tag-box2d","tag-physics","tag-proto","tag-shmup","tag-sprite"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/unitycoder.com\/blog\/wp-content\/uploads\/2013\/11\/sprite_renderer_unity.jpg?fit=360%2C291&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p1KTaT-EC","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/2518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/comments?post=2518"}],"version-history":[{"count":4,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/2518\/revisions"}],"predecessor-version":[{"id":2523,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/posts\/2518\/revisions\/2523"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media\/2519"}],"wp:attachment":[{"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/media?parent=2518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/categories?post=2518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unitycoder.com\/blog\/wp-json\/wp\/v2\/tags?post=2518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}