115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
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#include <stdio.h>
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#include <math.h>
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#include "features.h"
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#include "../include/sdk.h"
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#include "../include/globals.h"
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#include "../include/cvars.h"
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#include "../include/util.h"
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static void autostrafe_legit(usercmd_t* cmd) {
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/* Get mouse delta */
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int dx = 0, dy = 0;
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i_engine->pfnVguiWrap2_GetMouseDelta(&dx, &dy);
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if (dx < 0)
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cmd->sidemove = -450.0f;
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else if (dx > 0)
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cmd->sidemove = 450.0f;
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}
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/*
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* See:
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* https://github.com/deboogerxyz/ahc/blob/0492646e28dd7234a8cd431d37b152dc18a21b04/ahc.c#L201
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* https://github.com/NullHooks/NullHooks/blob/535351569ca599cadd21a286d88098b6dc057a46/src/core/features/movement/bhop.cpp#L73
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*/
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static const float DEG2RAD_CACHED = M_PI / 180.0f;
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static void autostrafe_rage(usercmd_t* cmd) {
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if (i_pmove->movetype != MOVETYPE_WALK)
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return;
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/* TODO: Get at runtime */
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const float sv_airaccelerate = 10.0f;
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const float sv_maxspeed = 320.0f;
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const float cl_forwardspeed = 425.0f;
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const float cl_sidespeed = 400.0f;
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float speed = vec_len2d(i_pmove->velocity);
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/* If low speed, start forward */
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if (speed < 15 && (cmd->buttons & IN_FORWARD)) {
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cmd->forwardmove = 450.0f;
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return;
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}
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float term = sv_airaccelerate / sv_maxspeed * 100.0f / speed;
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if (term < -1 || term > 1)
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return;
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float best_delta = acosf(term);
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vec3_t viewangles;
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i_engine->GetViewAngles(viewangles);
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float yaw = viewangles.y * DEG2RAD_CACHED;
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float vel_dir = atan2f(i_pmove->velocity.y, i_pmove->velocity.x) - yaw;
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float target_ang = atan2f(-cmd->sidemove, cmd->forwardmove);
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float delta = angle_delta_rad(vel_dir, target_ang);
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float movedir = delta < 0 ? vel_dir + best_delta : vel_dir - best_delta;
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cmd->forwardmove = cosf(movedir) * cl_forwardspeed;
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cmd->sidemove = -sinf(movedir) * cl_sidespeed;
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}
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void bhop(usercmd_t* cmd) {
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if (!CVAR_ON(movement_bhop) || i_pmove->movetype != MOVETYPE_WALK)
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return;
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static bool was_in_air = false;
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/* Used bellow to check if we should autostrafe before. Store since we might
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* change cmd->buttons (autostrafe only when user hold space) */
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bool is_jumping = cmd->buttons & IN_JUMP;
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/* 2 frames in air, release jump */
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if (was_in_air && !(i_pmove->flags & FL_ONGROUND))
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cmd->buttons &= ~IN_JUMP;
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was_in_air = (i_pmove->flags & FL_ONGROUND) == 0;
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/* Autostrafe if enabled. Check if we are in the air and holding space. */
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if (is_jumping) {
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switch ((int)dz_movement_autostrafe->value) {
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case 1:
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autostrafe_rage(cmd);
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break;
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case 2:
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autostrafe_legit(cmd);
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break;
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case 0:
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default:
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break;
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}
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}
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}
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/*
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* Unfortunately I don't know shit about math, so this is pasted from:
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* https://github.com/deboogerxyz/ahc/blob/0492646e28dd7234a8cd431d37b152dc18a21b04/ahc.c#L377
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*/
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void correct_movement(usercmd_t* cmd, vec3_t old_angles) {
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float delta_y = fmodf(cmd->viewangles.y - old_angles.y + 540.0f, 360.0f) - 180.0f; // Normalized delta in [-180, 180)
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float delta_rad = delta_y * DEG2RAD_CACHED;
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float delta_cos = cosf(delta_rad);
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float delta_sin = sinf(delta_rad);
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float forward = cmd->forwardmove;
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float side = cmd->sidemove;
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cmd->forwardmove = delta_cos * forward - delta_sin * side;
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cmd->sidemove = delta_sin * forward + delta_cos * side;
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} |