abused macros

src/deathpart.c

@@ -0,0 +1,14 @@
+#include "entityimpl.h"
+
+IMPL_UPDATE()
+}
+
+IMPL_DRAW()
+	LZY_DrawSetColor(BLACK);
+	LZY_DrawRect(this->pos[0] - this->width / 2,
+	             this->pos[1] - this->height / 2,
+	             this->width, this->height);
+}
+
+IMPL_INIT(deathpart)
+}

src/deathpart.h

@@ -0,0 +1,10 @@
+#pragma once
+
+typedef struct {
+	int _;
+} DeathPart;
+
+struct Entity;
+struct Game;
+
+void deathpart_init(struct Entity *this, int x, int y);

src/entity.h

@@ -1,14 +1,16 @@
 #pragma once
 #include "player.h"
 #include "exit.h"
+#include "deathpart.h"
 #include <stdbool.h>
 
 struct Game;
 
 typedef enum {
 	ET_NONE,
-	ET_PLAYER,
-	ET_EXIT
+	ET_player,
+	ET_exit,
+	ET_deathpart
 } EntityType;
 
 typedef struct Entity Entity;
@@ -27,6 +29,7 @@ struct Entity {
 	union {
 		Player player;
 		Exit exit;
+		DeathPart deathpart;
 	};
 };
 

src/entityimpl.h

@@ -0,0 +1,16 @@
+#pragma once
+#include "game.h"
+#include "cfg.h"
+#include "lzy.h"
+#include <string.h>
+
+#define IMPL_UPDATE() static void update(Entity*this,Game*g){(void)this,(void)g;
+#define IMPL_DRAW() static void draw(Entity*this,Game*g){(void)this,(void)g;
+#define IMPL_INIT(X) void X##_init(Entity *this, int x, int y) { do { \
+	memset(this, 0, sizeof(*this)); \
+	this->update = update; \
+	this->draw = draw; \
+	this->pos[0] = x; \
+	this->pos[1] = y; \
+	this->type = ET_##X; \
+} while(0);

src/exit.c

@@ -1,29 +1,16 @@
-#include "exit.h"
-#include "entity.h"
-#include "game.h"
-#include "cfg.h"
-#include "lzy.h"
-#include <string.h>
+#include "entityimpl.h"
 
-static void
-exit_draw(Entity *this, Game *g)
-{
-	(void)g;
+IMPL_UPDATE()
+}
+
+IMPL_DRAW()
 	LZY_DrawSetColor(BLACK);
 	LZY_DrawRect(this->pos[0] - this->width / 2,
 	             this->pos[1] - this->height / 2,
 	             this->width, this->height);
 }
 
-void
-exit_init(Entity *this, int x, int y)
-{
-	memset(this, 0, sizeof(*this));
-	this->pos[0] = x;
-	this->pos[1] = y;
-	this->type = ET_EXIT;
-	this->update = NULL;
-	this->draw = exit_draw;
+IMPL_INIT(exit)
 	this->width = 12;
 	this->height = 12;
 }

src/player.c

@@ -1,15 +1,8 @@
-#include "player.h"
-#include "entity.h"
-#include "game.h"
-#include "lzy.h"
-#include "cfg.h"
+#include "entityimpl.h"
 #include "input.h"
-#include <string.h>
 #include <math.h>
 
-static void
-player_update(Entity *this, Game *g)
-{
+IMPL_UPDATE()
 	const int on_ground = entity_collide(this, g, 0, 1);
 
 	this->vel[0] = 2.0 * this->player.dirx;
@@ -52,14 +45,11 @@ player_update(Entity *this, Game *g)
 	if (this->bonk_ceiling)
 		g->queue_restart_scene = true;
 
-	if (entity_place_meeting(this, g, ET_EXIT) != NULL)
+	if (entity_place_meeting(this, g, ET_exit) != NULL)
 		g->queue_next_scene = true;
 }
 
-static void
-player_draw(Entity *this, Game *g)
-{
-	(void)g;
+IMPL_DRAW()
 	LZY_DrawSetColor(BLACK);
 	int width = (int)(this->width / 2) * this->player.scale_x;
 	int height = (int)(this->height / 2) * this->player.scale_y;
@@ -68,20 +58,9 @@ player_draw(Entity *this, Game *g)
 	LZY_DrawRect(this->pos[0] - width / 2,
 	             this->pos[1] - height / 2,
 	             width, height);
-	//LZY_DrawRect(this->pos[0] - width / 2 + 1,
-	//             this->pos[1] - height / 2 + 1,
-	//             width - 2, height - 2);
 }
 
-void
-player_init(Entity *this, int x, int y)
-{
-	memset(this, 0, sizeof(*this));
-	this->pos[0] = x;
-	this->pos[1] = y;
-	this->type = ET_PLAYER;
-	this->update = player_update;
-	this->draw = player_draw;
+IMPL_INIT(player)
 	this->width = 12;
 	this->height = 12;
 	this->player.scale_x = 1.0;