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User:ChampionAsh5357/Sandbox/Fluids API (view source)
Revision as of 12:23, 15 June 2022
, 12:23, 15 June 2022Add some examples
In Forge 41.0.28, the Fluid API had been completely overhauled. These changes expanded the system to allow for custom physics logic and additional behavior not tied directly to the water and lava tags. This guide will go through all the changes and additions that Fluids now provide for you to use.
In Forge 41.0.28, the Fluid API had been completely overhauled. These changes expanded the system to allow for custom physics logic and additional behavior not tied directly to the water and lava tags. This guide will go through all the changes and additions that Fluids now provide for you to use.
An example of the new fluid system can be found in the [https://github.com/MinecraftForge/MinecraftForge/blob/1.19.x/src/test/java/net/minecraftforge/debug/fluid/FluidTypeTest.java test mod].
== Quick Guide ==
== Quick Guide ==
<code>FluidType</code> replaces <code>FluidAttributes</code>. All fluids must override <code>IForgeFluid#getFluidType</code> similar to the previous <code>#getAttributes</code>. Additionally, the <code>FluidType</code> can be accessed from the fluid or fluid state for convenience.
<code>FluidType</code> replaces <code>FluidAttributes</code>. All fluids must override <code>IForgeFluid#getFluidType</code> similar to the previous <code>#getAttributes</code>. Additionally, the <code>FluidType</code> can be accessed from the fluid or fluid state for convenience.
<syntaxhighlight lang="java">
private static final DeferredRegister<Fluid> FLUIDS = DeferredRegister.create(ForgeRegistries.FLUIDS, ID);
// TestFluid extends FlowingFluid
private static final RegistryObject<FlowingFluid> TEST_FLUID = FLUIDS.register("test_fluid", () -> new TestFluid() {
@Override
public FluidType getFluidType() {
return TEST_FLUID_TYPE.get();
}
});
</syntaxhighlight>
<code>FluidType</code> is a forge registry, and as such needs to be registered. If using <code>DeferredRegister</code>, you must use the one that takes in the registry name and modid since the registry does not exist during mod construction.
<code>FluidType</code> is a forge registry, and as such needs to be registered. If using <code>DeferredRegister</code>, you must use the one that takes in the registry name and modid since the registry does not exist during mod construction.
<syntaxhighlight lang="java">
private static final DeferredRegister<FluidType> FLUID_TYPES = DeferredRegister.create(ForgeRegistries.Keys.FLUID_TYPES, ID);
private static final RegistryObject<FluidType> TEST_FLUID_TYPE = FLUID_TYPES.register("test_fluid", () -> new FluidType(FluidType.Properties.create()));
</syntaxhighlight>
=== isVaporizedOnPlacement ===
=== isVaporizedOnPlacement ===
Fluid interactions are handled by the <code>FluidInteractionRegistry</code>. Interactions define the behavior a block should handle in all directions besides down. The down direction must be defined by the fluid in <code>FlowingFluid#spreadTo</code>, and will not be considered in this registry. An interaction can be registered using <code>#addInteraction</code> in <code>FMLCommonSetupEvent</code> by specifying the source of the interaction (which is typically the fluid being replaced), and the interaction information which defines the conditions of when the interaction should occur and what the interaction should do.
Fluid interactions are handled by the <code>FluidInteractionRegistry</code>. Interactions define the behavior a block should handle in all directions besides down. The down direction must be defined by the fluid in <code>FlowingFluid#spreadTo</code>, and will not be considered in this registry. An interaction can be registered using <code>#addInteraction</code> in <code>FMLCommonSetupEvent</code> by specifying the source of the interaction (which is typically the fluid being replaced), and the interaction information which defines the conditions of when the interaction should occur and what the interaction should do.
private void commonSetup(FMLCommonSetupEvent event) {
// Test Fluid + Lava (source/flowing) -> Gold Block (Test fluid source/flowing gets replaced)
FluidInteractionRegistry.addInteraction(TEST_FLUID_TYPE.get(), new FluidInteractionRegistry.InteractionInformation(ForgeMod.LAVA_TYPE.get(), Blocks.GOLD_BLOCK.defaultBlockState()));
}
== Gaseous Fluids ==
== Gaseous Fluids ==
A <code>Fluid</code> is considered gaseous at room temperature if it is in the <code>forge:gaseous</code> tag. This is typically correlated with a negative density.
A <code>Fluid</code> is considered gaseous at room temperature if it is in the <code>forge:gaseous</code> tag. This is typically correlated with a negative density.