Flash MX 2004 Games : Art to ActionScript

Chapter 18: Sports simulations
37 if (frame>_root.ROTATIONFRAMES){
38 frame -= _root.ROTATIONFRAMES;
39 }
40 eval(name).setFrame(frame);
41 }else{
42 rotateright = 1;
43
44
}
45 if (Key.isDown(Key.SPACE)){
46 //Space Bar
47 if (eval(name).balldist100){
59 movecount = _root.PANFRAMES;
60 }else{
61 movecount = 0;
62 }
63 }
64
65 }
}
Listing 18.8
The ‘setFrame’ function determines whether the player is actually already on the best frame to
display the current angle, because in this example we only have 32 different display angles but the
clip can be set to any angle. We only need to update the frame when we move into a new angle
display. By finding the integer of the current frame after division by the step value and comparing
this with the requested frame divided in the same way, we can see whether we have stepped into
a new display block. Then we test for the current speed and set the player’s display frame to either
a stationary rotate frame or a running display frame.
1 function setFrame(frame){
2 a = int(_currentframe/_root.PLAYERROTATESTEP);
3 b = int(frame/_root.PLAYERROTATESTEP);
4 if (a!=b){
5 //Need to rotate our player
6 b++;
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