68 lines
2.7 KiB
C
68 lines
2.7 KiB
C
#include <libreborn/libreborn.h>
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#include <symbols/minecraft.h>
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#include <mods/feature/feature.h>
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#include "input-internal.h"
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#include <mods/input/input.h>
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// Store Left Click (0 = Not Pressed, 1 = Pressed)
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static int is_left_click = 0;
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void input_set_is_left_click(int val) {
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if ((is_left_click == 0 && val == 1) || (is_left_click != 0 && val == 0)) {
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is_left_click = val;
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}
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}
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// Add Attacking To MouseBuildInput
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static int32_t MouseBuildInput_tickBuild_injection(unsigned char *mouse_build_input, unsigned char *local_player, uint32_t *build_action_intention_return) {
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// Call Original Method
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int32_t ret = (*MouseBuildInput_tickBuild)(mouse_build_input, local_player, build_action_intention_return);
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// Use Attack/Place BuildActionIntention If No Other Valid BuildActionIntention Was Selected And This Was Not A Repeated Left Click
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if (ret != 0 && is_left_click == 1 && *build_action_intention_return == 0xa) {
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// Get Target HitResult
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unsigned char *minecraft = *(unsigned char **) (local_player + LocalPlayer_minecraft_property_offset);
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HitResult *hit_result = (HitResult *) (minecraft + Minecraft_hit_result_property_offset);
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int32_t hit_result_type = hit_result->type;
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// Check if The Target Is An Entity Using HitResult
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if (hit_result_type == 1) {
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// Change BuildActionIntention To Attack/Place Mode (Place Will Not Happen Because The HitResult Is An Entity)
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*build_action_intention_return = 0x8;
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}
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}
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// Return
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return ret;
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}
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// Fix Holding Right-Click
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static bool last_player_attack_successful = 0;
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static bool Player_attack_Entity_hurt_injection(unsigned char *entity, unsigned char *attacker, int32_t damage) {
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// Call Original Method
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unsigned char *entity_vtable = *(unsigned char **) entity;
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Entity_hurt_t Entity_hurt = *(Entity_hurt_t *) (entity_vtable + Entity_hurt_vtable_offset);
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last_player_attack_successful = (*Entity_hurt)(entity, attacker, damage);
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return last_player_attack_successful;
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}
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static ItemInstance *Player_attack_Inventory_getSelected_injection(unsigned char *inventory) {
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// Check If Attack Was Successful
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if (!last_player_attack_successful) {
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return NULL;
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}
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// Call Original Method
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return (*Inventory_getSelected)(inventory);
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}
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// Init
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void _init_attack() {
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// Allow Attacking Mobs
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if (feature_has("Fix Attacking", server_disabled)) {
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patch_address(MouseBuildInput_tickBuild_vtable_addr, (void *) MouseBuildInput_tickBuild_injection);
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// Fix Holding Right-Click
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overwrite_call((void *) 0x8fc1c, (void *) Player_attack_Entity_hurt_injection);
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overwrite_call((void *) 0x8fc24, (void *) Player_attack_Inventory_getSelected_injection);
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}
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}
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