From 3d3ebd7c5a8ed83ded8a98ef670dfe103543c438 Mon Sep 17 00:00:00 2001
From: 8dcc <8dcc.git@gmail.com>
Date: Mon, 31 Jul 2023 15:36:09 +0200
Subject: [PATCH] Add can_shoot and draw_tracer to util.c

---
 src/include/util.h |  2 ++
 src/util.c         | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/src/include/util.h b/src/include/util.h
index bc73e1c..b4ceebd 100644
--- a/src/include/util.h
+++ b/src/include/util.h
@@ -34,6 +34,7 @@ cl_entity_t* get_player(int ent_idx);
 bool is_alive(cl_entity_t* ent);
 bool valid_player(cl_entity_t* ent);
 bool is_friend(cl_entity_t* ent);
+bool can_shoot(void);
 char* get_name(int ent_idx);
 game_id get_cur_game(void);
 vec3_t vec3(float x, float y, float z);
@@ -48,6 +49,7 @@ vec3_t vec_to_ang(vec3_t v);
 vec3_t matrix_3x4_origin(matrix_3x4 m);
 bool world_to_screen(vec3_t vec, vec2_t screen);
 void engine_draw_text(int x, int y, char* s, rgb_t c);
+void draw_tracer(vec3_t start, vec3_t end, rgb_t c, float a, float w, float t);
 void gl_drawbox(int x, int y, int w, int h, rgb_t c);
 void gl_drawline(int x0, int y0, int x1, int y1, float w, rgb_t col);
 bool protect_addr(void* ptr, int new_flags);
diff --git a/src/util.c b/src/util.c
index 05dfdbc..752c821 100644
--- a/src/util.c
+++ b/src/util.c
@@ -63,6 +63,10 @@ bool is_friend(cl_entity_t* ent) {
     }
 }
 
+bool can_shoot(void) {
+    return g_flNextAttack <= 0.0f && g_flNextPrimaryAttack <= 0.0f;
+}
+
 char* get_name(int ent_idx) {
     hud_player_info_t info;
     i_engine->pfnGetPlayerInfo(ent_idx, &info);
@@ -204,6 +208,19 @@ void engine_draw_text(int x, int y, char* s, rgb_t c) {
     i_engine->pfnDrawConsoleString(x, y, s);
 }
 
+void draw_tracer(vec3_t start, vec3_t end, rgb_t c, float a, float w,
+                 float time) {
+    static const char* MDL_STR = "sprites/laserbeam.spr";
+    static int beam_idx = i_engine->pEventAPI->EV_FindModelIndex(MDL_STR);
+
+    float r = c.r / 255.f;
+    float g = c.g / 255.f;
+    float b = c.b / 255.f;
+
+    i_engine->pEfxAPI->R_BeamPoints(start, end, beam_idx, time, w, 0, a, 0, 0,
+                                    0, r, g, b);
+}
+
 void gl_drawbox(int x, int y, int w, int h, rgb_t c) {
     /* Line width */
     const int lw = 1;