From 4d94823a1523db6dc218bdc0d86689616c13599d Mon Sep 17 00:00:00 2001
From: quou <quou@disroot.org>
Date: Wed, 2 Oct 2024 18:47:37 +1000
Subject: Gun special

---
 config.h |  1 +
 obj.h    | 10 ++++++++++
 player.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 world.c  |  5 +++++
 world.h  |  1 +
 5 files changed, 75 insertions(+)

diff --git a/config.h b/config.h
index 5ab7597..7dcf8d7 100644
--- a/config.h
+++ b/config.h
@@ -39,6 +39,7 @@
 #define player_attack_frames 10
 #define player_lunge_force (f1)
 #define player_slash_damage 1
+#define player_gun_damage 10
 #define player_health 8
 #define player_special_hits 4
 #define player_hurt_freeze 4
diff --git a/obj.h b/obj.h
index 4f7d57e..ad7098c 100644
--- a/obj.h
+++ b/obj.h
@@ -44,6 +44,16 @@ void update_player(
 );
 void ren_player(const Player* p, struct Renderer* r);
 
+typedef struct {
+	int x, y, w;
+	int life;
+} Laser;
+
+void init_laser(Laser* l);
+void activate_laser(Laser* l, int x, int y);
+void update_laser(Laser* l);
+void ren_laser(const Laser* l, struct Renderer* r);
+
 typedef struct {
 	int x, y;
 	int frame, anim;
diff --git a/player.c b/player.c
index 26a333e..b3a1d00 100644
--- a/player.c
+++ b/player.c
@@ -178,6 +178,25 @@ void update_player_hurt(Player* p, World* w) {
 	}
 }
 
+void update_player_special(Player* p, const App* a, World* w) {
+	if (p->charge < player_special_hits) return;
+	if (!btn_just_pressed(a, btn_special)) return;
+	if (p->spec == special_gun) {
+		int sx;
+		Rect dz = { 0, 0, 500, 16 };
+		if (p->face == face_left)
+			sx = (p->x >> fbits) - dz.w;
+		else
+			sx = (p->x >> fbits) + 16;
+		dz.x = sx;
+		dz.y = (p->y >> fbits);
+		inst_deathzone(w, &dz, 0, 0, player_gun_damage, 1, 1);
+		activate_laser(&w->laser, dz.x, dz.y);
+		w->freeze = 3;
+	}
+	p->charge = 0;
+}
+
 void update_player(
 	Player* p,
 	World* w,
@@ -185,6 +204,7 @@ void update_player(
 	const Map* map
 ) {
 	update_player_move(p, app, w);
+	update_player_special(p, app, w);
 	update_player_hurt(p, w);
 	update_player_phys(p, map);
 	update_player_anim(p);
@@ -195,3 +215,41 @@ void ren_player(const Player* p, struct Renderer* r) {
 	if (p->inv & 5) return;
 	ren_map(r, p->x >> fbits, p->y >> fbits, &p->rect, b);
 }
+
+void init_laser(Laser* l) {
+	l->life = 0;
+}
+
+void activate_laser(Laser* l, int x, int y) {
+	l->life = 10;
+	l->x = x;
+	l->y = y;
+}
+
+void update_laser(Laser* l) {
+	l->life--;
+}
+
+void ren_laser(const Laser* l, struct Renderer* r) {
+	const int h = 10;
+	const int hr = h - l->life;
+	const int hr2 = hr >> 1;
+	Rect re;
+	re.x = l->x;
+	re.y = l->y + hr2;
+	re.w = 500;
+	re.h = 10 - hr;
+	ren_rect(r, &re);
+	re.h = 1;
+	re.y = l->y - hr2;
+	ren_rect(r, &re);
+	re.h = 1;
+	re.y = l->y + h + hr2;
+	ren_rect(r, &re);
+	re.h = 1;
+	re.y = l->y - hr;
+	ren_rect(r, &re);
+	re.h = 1;
+	re.y = l->y + h + hr;
+	ren_rect(r, &re);
+}
diff --git a/world.c b/world.c
index fc137ee..b1f73ec 100644
--- a/world.c
+++ b/world.c
@@ -8,6 +8,7 @@ void init_world(World* w) {
 	w->frame = 0;
 	w->freeze = 0;
 	init_player(&w->player);
+	init_laser(&w->laser);
 }
 
 Particle* inst_particle(
@@ -55,6 +56,8 @@ Deathzone* inst_deathzone(
 
 void update_world(World* w, const App* a) {
 	int i;
+	if (w->laser.life)
+		update_laser(&w->laser);
 	if (w->freeze) {
 		w->freeze--;
 		return;
@@ -80,5 +83,7 @@ void ren_world(const World* w, struct Renderer* r) {
 		ren_particle(&w->particles[i], r);
 	for (i = 0; i < w->enemy_count; i++)
 		ren_enemy(&w->enemies[i], r);
+	if (w->laser.life)
+		ren_laser(&w->laser, r);
 	ren_hud(w, r);
 }
diff --git a/world.h b/world.h
index d691a6a..05372ae 100644
--- a/world.h
+++ b/world.h
@@ -17,6 +17,7 @@ typedef struct World {
 	int particle_count, enemy_count;
 	int deathzone_count;
 	Player player;
+	Laser laser;
 	Map map;
 	int frame, freeze;
 } World;
-- 
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