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resolving issue #5

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Former-commit-id: 12d11b683a242172a7c3ec831efb7d65f552951f
Former-commit-id: fd276318b77ac5ef9b1963e84fb33380ddbae45c
This commit is contained in:
Song Minjae
2016-12-22 22:20:49 +09:00
parent 611b78ffa5
commit 1362f6921e
3 changed files with 34 additions and 3 deletions
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13
src/net/torvald/terrarum/StateInGame.kt
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@@ -529,18 +529,27 @@ constructor() : BasicGameState() {
fun Double.sqr() = this * this
fun Int.sqr() = this * this
fun min(vararg d: Double): Double {
var ret = Double.MAX_VALUE
d.forEach { if (it < ret) ret = it }
return ret
}
private fun distToActorSqr(a: ActorWithBody, p: ActorWithBody) =
Math.min(// take min of normal position and wrapped (x < 0) position
min(// take min of normal position and wrapped (x < 0) position
(a.hitbox.centeredX - p.hitbox.centeredX).sqr() +
(a.hitbox.centeredY - p.hitbox.centeredY).sqr(),
(a.hitbox.centeredX - p.hitbox.centeredX + world.width * TILE_SIZE).sqr() +
(a.hitbox.centeredY - p.hitbox.centeredY).sqr(),
(a.hitbox.centeredX - p.hitbox.centeredX - world.width * TILE_SIZE).sqr() +
(a.hitbox.centeredY - p.hitbox.centeredY).sqr()
)
private fun distToCameraSqr(a: ActorWithBody) =
Math.min(
min(
(a.hitbox.posX - MapCamera.cameraX).sqr() +
(a.hitbox.posY - MapCamera.cameraY).sqr(),
(a.hitbox.posX - MapCamera.cameraX + world.width * TILE_SIZE).sqr() +
(a.hitbox.posY - MapCamera.cameraY).sqr(),
(a.hitbox.posX - MapCamera.cameraX - world.width * TILE_SIZE).sqr() +
(a.hitbox.posY - MapCamera.cameraY).sqr()
)