summaryrefslogtreecommitdiffstats
path: root/src/Physics/Explodinator.cpp
diff options
context:
space:
mode:
authorTiger Wang <ziwei.tiger@outlook.com>2021-02-06 22:32:54 +0100
committerTiger Wang <ziwei.tiger@outlook.com>2021-02-07 23:36:15 +0100
commit7ad054b08715c5ee57b6362718c18c3758796d28 (patch)
tree13452aa95ea91d856c02bdc286507d88eaa92b0d /src/Physics/Explodinator.cpp
parentExplodinator: fix divide by zero (diff)
downloadcuberite-7ad054b08715c5ee57b6362718c18c3758796d28.tar
cuberite-7ad054b08715c5ee57b6362718c18c3758796d28.tar.gz
cuberite-7ad054b08715c5ee57b6362718c18c3758796d28.tar.bz2
cuberite-7ad054b08715c5ee57b6362718c18c3758796d28.tar.lz
cuberite-7ad054b08715c5ee57b6362718c18c3758796d28.tar.xz
cuberite-7ad054b08715c5ee57b6362718c18c3758796d28.tar.zst
cuberite-7ad054b08715c5ee57b6362718c18c3758796d28.zip
Diffstat (limited to 'src/Physics/Explodinator.cpp')
-rw-r--r--src/Physics/Explodinator.cpp137
1 files changed, 133 insertions, 4 deletions
diff --git a/src/Physics/Explodinator.cpp b/src/Physics/Explodinator.cpp
index 4b0190ac8..862952fb9 100644
--- a/src/Physics/Explodinator.cpp
+++ b/src/Physics/Explodinator.cpp
@@ -39,12 +39,141 @@ namespace Explodinator
};
}
+ /** Returns how much of an explosion Destruction Lazor's (tm) intensity the given block attenuates.
+ Values are scaled as 0.3 * (0.3 + Wiki) since some compilers miss the constant folding optimisation.
+ Wiki values are https://minecraft.gamepedia.com/Explosion#Blast_resistance as of 2021-02-06. */
+ static float GetExplosionAbsorption(const BLOCKTYPE Block)
+ {
+ switch (Block)
+ {
+ case E_BLOCK_BEDROCK:
+ case E_BLOCK_COMMAND_BLOCK:
+ case E_BLOCK_END_GATEWAY:
+ case E_BLOCK_END_PORTAL:
+ case E_BLOCK_END_PORTAL_FRAME: return 1080000.09f;
+ case E_BLOCK_ANVIL:
+ case E_BLOCK_ENCHANTMENT_TABLE:
+ case E_BLOCK_OBSIDIAN: return 360.09f;
+ case E_BLOCK_ENDER_CHEST: return 180.09f;
+ case E_BLOCK_LAVA:
+ case E_BLOCK_STATIONARY_LAVA:
+ case E_BLOCK_WATER:
+ case E_BLOCK_STATIONARY_WATER: return 30.09f;
+ case E_BLOCK_DRAGON_EGG:
+ case E_BLOCK_END_STONE:
+ case E_BLOCK_END_BRICKS: return 2.79f;
+ case E_BLOCK_STONE:
+ case E_BLOCK_BLOCK_OF_COAL:
+ case E_BLOCK_DIAMOND_BLOCK:
+ case E_BLOCK_EMERALD_BLOCK:
+ case E_BLOCK_GOLD_BLOCK:
+ case E_BLOCK_IRON_BLOCK:
+ case E_BLOCK_BLOCK_OF_REDSTONE:
+ case E_BLOCK_BRICK:
+ case E_BLOCK_BRICK_STAIRS:
+ case E_BLOCK_COBBLESTONE:
+ case E_BLOCK_COBBLESTONE_STAIRS:
+ case E_BLOCK_IRON_BARS:
+ case E_BLOCK_JUKEBOX:
+ case E_BLOCK_MOSSY_COBBLESTONE:
+ case E_BLOCK_NETHER_BRICK:
+ case E_BLOCK_NETHER_BRICK_FENCE:
+ case E_BLOCK_NETHER_BRICK_STAIRS:
+ case E_BLOCK_PRISMARINE_BLOCK:
+ case E_BLOCK_STONE_BRICKS:
+ case E_BLOCK_STONE_BRICK_STAIRS:
+ case E_BLOCK_COBBLESTONE_WALL: return 1.89f;
+ case E_BLOCK_IRON_DOOR:
+ case E_BLOCK_IRON_TRAPDOOR:
+ case E_BLOCK_MOB_SPAWNER: return 1.59f;
+ case E_BLOCK_HOPPER: return 1.53f;
+ case E_BLOCK_TERRACOTTA: return 1.35f;
+ case E_BLOCK_COBWEB: return 1.29f;
+ case E_BLOCK_DISPENSER:
+ case E_BLOCK_DROPPER:
+ case E_BLOCK_FURNACE:
+ case E_BLOCK_OBSERVER: return 1.14f;
+ case E_BLOCK_BEACON:
+ case E_BLOCK_COAL_ORE:
+ case E_BLOCK_COCOA_POD:
+ case E_BLOCK_DIAMOND_ORE:
+ case E_BLOCK_EMERALD_ORE:
+ case E_BLOCK_GOLD_ORE:
+ case E_BLOCK_IRON_ORE:
+ case E_BLOCK_LAPIS_BLOCK:
+ case E_BLOCK_LAPIS_ORE:
+ case E_BLOCK_NETHER_QUARTZ_ORE:
+ case E_BLOCK_PLANKS:
+ case E_BLOCK_REDSTONE_ORE:
+ case E_BLOCK_FENCE:
+ case E_BLOCK_FENCE_GATE:
+ case E_BLOCK_WOODEN_DOOR:
+ case E_BLOCK_WOODEN_SLAB:
+ case E_BLOCK_WOODEN_STAIRS:
+ case E_BLOCK_TRAPDOOR: return 0.99f;
+ case E_BLOCK_CHEST:
+ case E_BLOCK_WORKBENCH:
+ case E_BLOCK_TRAPPED_CHEST: return 0.84f;
+ case E_BLOCK_BONE_BLOCK:
+ case E_BLOCK_CAULDRON:
+ case E_BLOCK_LOG: return 0.69f; // nIcE
+ case E_BLOCK_CONCRETE: return 0.63f;
+ case E_BLOCK_BOOKCASE: return 0.54f;
+ case E_BLOCK_STANDING_BANNER:
+ case E_BLOCK_WALL_BANNER:
+ case E_BLOCK_JACK_O_LANTERN:
+ case E_BLOCK_MELON:
+ case E_BLOCK_HEAD:
+ case E_BLOCK_NETHER_WART_BLOCK:
+ case E_BLOCK_PUMPKIN:
+ case E_BLOCK_SIGN_POST:
+ case E_BLOCK_WALLSIGN: return 0.39f;
+ case E_BLOCK_QUARTZ_BLOCK:
+ case E_BLOCK_QUARTZ_STAIRS:
+ case E_BLOCK_RED_SANDSTONE:
+ case E_BLOCK_RED_SANDSTONE_STAIRS:
+ case E_BLOCK_SANDSTONE:
+ case E_BLOCK_SANDSTONE_STAIRS:
+ case E_BLOCK_WOOL: return 0.33f;
+ case E_BLOCK_SILVERFISH_EGG: return 0.315f;
+ case E_BLOCK_ACTIVATOR_RAIL:
+ case E_BLOCK_DETECTOR_RAIL:
+ case E_BLOCK_POWERED_RAIL:
+ case E_BLOCK_RAIL: return 0.3f;
+ case E_BLOCK_GRASS_PATH:
+ case E_BLOCK_CLAY:
+ case E_BLOCK_FARMLAND:
+ case E_BLOCK_GRASS:
+ case E_BLOCK_GRAVEL:
+ case E_BLOCK_SPONGE: return 0.27f;
+ case E_BLOCK_BREWING_STAND:
+ case E_BLOCK_STONE_BUTTON:
+ case E_BLOCK_WOODEN_BUTTON:
+ case E_BLOCK_CAKE:
+ case E_BLOCK_CONCRETE_POWDER:
+ case E_BLOCK_DIRT:
+ case E_BLOCK_FROSTED_ICE:
+ case E_BLOCK_HAY_BALE:
+ case E_BLOCK_ICE: return 0.24f;
+ default: return 0.09f;
+ }
+ }
+
/** Calculates the approximate percentage of an Entity's bounding box that is exposed to an explosion centred at Position. */
- static float CalculateEntityExposure(cChunk & a_Chunk, const cEntity & a_Entity, const Vector3f a_Position, const int a_SquareRadius)
+ static float CalculateEntityExposure(const cChunk & a_Chunk, const cEntity & a_Entity, const Vector3f a_Position, const int a_SquareRadius)
{
+ class LineOfSightCallbacks final : public cLineBlockTracer::cCallbacks
+ {
+ virtual bool OnNextBlock(Vector3i a_BlockPos, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, eBlockFace a_EntryFace) override
+ {
+ return a_BlockType != E_BLOCK_AIR;
+ }
+ } Callback;
+
const Vector3d Position = a_Position;
unsigned Unobstructed = 0, Total = 0;
const auto Box = a_Entity.GetBoundingBox();
+ cLineBlockTracer Tracer(*a_Chunk.GetWorld(), Callback);
for (double X = Box.GetMinX(); X < Box.GetMaxX(); X += BoundingBoxStepUnit)
{
@@ -60,7 +189,7 @@ namespace Explodinator
continue;
}
- if (cLineBlockTracer::LineOfSightTrace(*a_Chunk.GetWorld(), a_Position, Destination, cLineBlockTracer::eLineOfSight::losAir))
+ if (Tracer.Trace(a_Position, Destination))
{
Unobstructed++;
}
@@ -73,7 +202,7 @@ namespace Explodinator
}
/** Applies distance-based damage and knockback to all entities within the explosion's effect range. */
- static void DamageEntities(cChunk & a_Chunk, const Vector3f a_Position, const int a_Power)
+ static void DamageEntities(const cChunk & a_Chunk, const Vector3f a_Position, const int a_Power)
{
const auto Radius = a_Power * 2;
const auto SquareRadius = Radius * Radius;
@@ -225,7 +354,7 @@ namespace Explodinator
break;
}
- a_Intensity -= 0.3f * (0.3f + cBlockInfo::GetExplosionAbsorption(Neighbour->GetBlock(Position)));
+ a_Intensity -= GetExplosionAbsorption(Neighbour->GetBlock(Position));
if (a_Intensity <= 0)
{
// The ray is exhausted: