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platform sorta works as intended

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Minjae Song
2018-12-31 00:00:47 +09:00
parent fdae5bce06
commit 738d5e669a
1 changed files with 52 additions and 24 deletions
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76
src/net/torvald/terrarum/gameactors/ActorWBMovable.kt
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@@ -69,18 +69,18 @@ open class ActorWBMovable(renderOrder: RenderOrder, val immobileBody: Boolean =
/** half integer tilewise hitbox */ // got the idea from gl_FragCoord
val hIntTilewiseHitbox: Hitbox
get() = Hitbox.fromTwoPoints(
hitbox.startX.plus(0.0001f).div(TILE_SIZE).floor() + 0.5f,
hitbox.startY.plus(0.0001f).div(TILE_SIZE).floor() + 0.5f,
hitbox.endX.plus(0.0001f).div(TILE_SIZE).floor() + 0.5f,
hitbox.endY.plus(0.0001f).div(TILE_SIZE).floor() + 0.5f
hitbox.startX.plus(0.00001f).div(TILE_SIZE).floor() + 0.5f,
hitbox.startY.plus(0.00001f).div(TILE_SIZE).floor() + 0.5f,
hitbox.endX.plus(0.00001f).div(TILE_SIZE).floor() + 0.5f,
hitbox.endY.plus(0.00001f).div(TILE_SIZE).floor() + 0.5f
)
val intTilewiseHitbox: Hitbox
get() = Hitbox.fromTwoPoints(
hitbox.startX.plus(0.0001f).div(TILE_SIZE).floor(),
hitbox.startY.plus(0.0001f).div(TILE_SIZE).floor(),
hitbox.endX.plus(0.0001f).div(TILE_SIZE).floor(),
hitbox.endY.plus(0.0001f).div(TILE_SIZE).floor()
hitbox.startX.plus(0.00001f).div(TILE_SIZE).floor(),
hitbox.startY.plus(0.00001f).div(TILE_SIZE).floor(),
hitbox.endX.plus(0.00001f).div(TILE_SIZE).floor(),
hitbox.endY.plus(0.00001f).div(TILE_SIZE).floor()
)
/**
@@ -595,6 +595,20 @@ open class ActorWBMovable(renderOrder: RenderOrder, val immobileBody: Boolean =
if (false) printdbg(this, wut)
}
fun BlockAddress.isFeetTile(hitbox: Hitbox): Boolean {
val (x, y) = LandUtil.resolveBlockAddr(world!!, this)
val newTilewiseHitbox = Hitbox.fromTwoPoints(
hitbox.startX.div(TILE_SIZE).floor(),
hitbox.startY.div(TILE_SIZE).floor(),
hitbox.endX.minus(0.00001).div(TILE_SIZE).floor(),
hitbox.endY.minus(0.00001).div(TILE_SIZE).floor()
)
// offset 1 pixel to the down so that friction would work
return (y == hitbox.endY.plus(1.0).div(TILE_SIZE).floorInt()) && // copied from forEachFeetTileNum
(x in newTilewiseHitbox.startX.toInt()..newTilewiseHitbox.endX.toInt()) // copied from forEachOccupyingTilePos
}
fun Double.modTile() = this.toInt().div(TILE_SIZE).times(TILE_SIZE)
fun Double.modTileDelta() = this - this.modTile()
@@ -628,7 +642,7 @@ open class ActorWBMovable(renderOrder: RenderOrder, val immobileBody: Boolean =
val tileCoord = LandUtil.resolveBlockAddr(world!!, it)
val tile = world!!.getTileFromTerrain(tileCoord.first, tileCoord.second) ?: Block.STONE
if (shouldICollideWithThis(tile)) {
if (shouldICollideWithThis(tile) || (it.isFeetTile(stepBox) && shouldICollideWithThisFeet(tile))) {
collidingStep = step
}
}
@@ -665,7 +679,7 @@ open class ActorWBMovable(renderOrder: RenderOrder, val immobileBody: Boolean =
if (isWalled(newHitbox, COLLIDING_BOTTOM)) selfCollisionStatus += COLL_BOTTOMSIDE // 2
// fixme UP and RIGHT && LEFT and DOWN bug
when (selfCollisionStatus) {
0 -> {
debug1("[ActorWBMovable] Contradiction -- collision detected by CCD, but isWalled() says otherwise")
@@ -928,18 +942,24 @@ open class ActorWBMovable(renderOrder: RenderOrder, val immobileBody: Boolean =
val tyStart = y1.plus(0.5f).div(TILE_SIZE).floorInt()
val tyEnd = y2.plus(0.5f).div(TILE_SIZE).floorInt()
return isCollidingInternal(txStart, tyStart, txEnd, tyEnd)
return isCollidingInternal(txStart, tyStart, txEnd, tyEnd, option == COLLIDING_BOTTOM)
}
private fun isCollidingInternal(txStart: Int, tyStart: Int, txEnd: Int, tyEnd: Int): Boolean {
private fun isCollidingInternal(txStart: Int, tyStart: Int, txEnd: Int, tyEnd: Int, feet: Boolean = false): Boolean {
if (world == null) return false
for (y in tyStart..tyEnd) {
for (x in txStart..txEnd) {
val tile = world!!.getTileFromTerrain(x, y) ?: Block.STONE
if (shouldICollideWithThis(tile))
return true
if (feet) {
if (shouldICollideWithThisFeet(tile))
return true
}
else {
if (shouldICollideWithThis(tile))
return true
}
// this weird statement means that if's the condition is TRUE, return TRUE;
// if the condition is FALSE, do nothing and let succeeding code handle it.
@@ -955,17 +975,25 @@ open class ActorWBMovable(renderOrder: RenderOrder, val immobileBody: Boolean =
* Very straightforward for the actual solid tiles, not so much for the platforms
*/
private fun shouldICollideWithThis(tile: Int) =
// regular solid block
(BlockCodex[tile].isSolid) ||
// platforms, moving downward AND not "going down"
(this is ActorHumanoid && BlockCodex[tile].isPlatform &&
externalForce.y + (controllerMoveDelta?.y ?: 0.0) >= 0.0 &&
!this.isDownDown && this.axisY <= 0f) ||
// platforms, moving downward
(this !is ActorHumanoid && BlockCodex[tile].isPlatform &&
externalForce.y + (controllerMoveDelta?.y ?: 0.0) >= 0.0)
// TODO: as for the platform, only apply it when it's a feet tile
// regular solid block
(BlockCodex[tile].isSolid)
/**
* If this tile should be treated as "collidable"
*
* Just like "shouldICollideWithThis" but it's intended to work with feet tiles
*/
private fun shouldICollideWithThisFeet(tile: Int) =
// regular solid block
(BlockCodex[tile].isSolid) ||
// platforms, moving downward AND not "going down"
(this is ActorHumanoid && BlockCodex[tile].isPlatform &&
externalForce.y + (controllerMoveDelta?.y ?: 0.0) >= 0.0 &&
!this.isDownDown && this.axisY <= 0f) ||
// platforms, moving downward
(this !is ActorHumanoid && BlockCodex[tile].isPlatform &&
externalForce.y + (controllerMoveDelta?.y ?: 0.0) >= 0.0)
// TODO: as for the platform, only apply it when it's a feet tile