User:JeffreyLau/SC2/Frame advantage and fundamental strategy: Difference between revisions
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All animations in SC2 are discretized into ''frames.'' The SC2 engine runs at 60 frames per second. Thus, a 12-frame attack (for example) takes 0.2 seconds to execute. Such an attack is called ''i12'', short for "impact 12," meaning that the attack hits the enemy 12 frames after it is executed. | All animations in SC2 are discretized into ''frames.'' The SC2 engine runs at 60 frames per second. Thus, a 12-frame attack (for example) takes 0.2 seconds to execute. Such an attack is called ''i12'', short for "impact 12," meaning that the attack hits the enemy 12 frames after it is executed. | ||
When an attack hits or is blocked, both players enter a recovery animation in which | When an attack hits or is blocked, both players enter a recovery animation in which they recover their stance and cannot move or perform any actions. Depending on the attack, and depending on whether it hit or was blocked, one of the two players will recover faster than the other. This is referred to as ''frame advantage.'' Over the course of a fight, the two players will shift in frame advantage many times. | ||
Frame advantage is best illustrated with an example: | Frame advantage is best illustrated with an example: | ||
Revision as of 23:30, 7 September 2006
Frame advantage
All animations in SC2 are discretized into frames. The SC2 engine runs at 60 frames per second. Thus, a 12-frame attack (for example) takes 0.2 seconds to execute. Such an attack is called i12, short for "impact 12," meaning that the attack hits the enemy 12 frames after it is executed.
When an attack hits or is blocked, both players enter a recovery animation in which they recover their stance and cannot move or perform any actions. Depending on the attack, and depending on whether it hit or was blocked, one of the two players will recover faster than the other. This is referred to as frame advantage. Over the course of a fight, the two players will shift in frame advantage many times.
Frame advantage is best illustrated with an example:
Ivy succesfully hits Mitsurugi with her 2A. Ivy's 2A gives +7 frame advantage on hit. This means that Mitsurugi's next action-- block, attack, GI, or move-- is delayed by 7 frames.
Suppose Mitsurugi tries to attack with A. Mitsurugi's A is i10, meaning it takes 10 frames to execute. But since Mitsurugi is suffering a 7-frame disadvantage, the attack actually comes out in 10 + 7 = 17 frames. This means that Ivy can do any attack that is i16 or slower, and she will beat Mitsurugi. For example, she may try 66B (which is i16), and score a counterhit against Mitsurugi, leading into a high-damage combo (CH 66B, 6B9).
