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Tutorials » Actionscripting

Basic 4 Sided Collision Detection
Author: J.D.Andrews | Website: http://www7.ewebcity.com/zsect/default.htm |

18. In layer 1 add another Keyframe so that there are 2 key frames.
19. Click on first frame and add the following collision code.

Here is the action script code.

Set Variable: "red_x" = GetProperty ("/red",_x)
Set Variable: "red_y" = GetProperty ("/red",_y)
Set Variable: "green_x" = GetProperty ("/green",_x)
Set Variable: "green_y" = GetProperty ("/green",_y)
Set Variable: "red_h" = GetProperty ("/red",_height)/2
Set Variable: "green_h" = GetProperty ("/green",_height)/2
Set Variable: "red_w" = GetProperty ("/red",_width)/2
Set Variable: "green_w" = GetProperty ("/green",_width)/2
Set Variable: "distance_x" = red_x-green_x
Set Variable: "distance_y" = red_y-green_y
Set Variable: "area" = (red_h+red_w)*(green_h+green_w)
If (distance_x*distance_x+distance_y*distance_y<=area)
 Set Variable: "/:status" = "Collision Detected"
Else
 Set Variable: "/:status" = "No Collision Detected"
End If

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