src/main/java/me/djtheredstoner/perspectivemod/mixins/MixinRenderManager.java


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package me.djtheredstoner.perspectivemod.mixins;

import me.djtheredstoner.perspectivemod.PerspectiveMod;
import net.minecraft.client.renderer.entity.RenderManager;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Redirect;

import static org.objectweb.asm.Opcodes.*;

@Mixin(RenderManager.class)
public class MixinRenderManager {

    @Redirect(method = "cacheActiveRenderInfo", at = @At(value = "FIELD", target = "Lnet/minecraft/client/renderer/entity/RenderManager;playerViewX:F", opcode = PUTFIELD))
    public void getPlayerViewX(RenderManager renderManager, float value) {
        renderManager.playerViewX = PerspectiveMod.perspectiveToggled ? PerspectiveMod.cameraPitch : value;
    }

    @Redirect(method = "cacheActiveRenderInfo", at = @At(value = "FIELD", target = "Lnet/minecraft/client/renderer/entity/RenderManager;playerViewY:F", opcode = PUTFIELD))
    public void getPlayerViewY(RenderManager renderManager, float value) {
        renderManager.playerViewY = PerspectiveMod.perspectiveToggled ? PerspectiveMod.cameraYaw : value;
    }

}