Fix Mac compile warnings (#129)

Co-authored-by: Linus Probert <lprobert@apple.com>

Author: LiquidityC

lib/lua-5.3.5/CMakeLists.txt

@@ -48,8 +48,3 @@ add_library(lua STATIC
 	src/lzio.c
 	)
 
-if (NOT MSVC)
-	target_link_libraries(lua
-		-lm
-		)
-endif ()

src/hiscore.c

@@ -41,7 +41,7 @@ DbQuery MIGRATE_COMMANDS[] = {
 			"FOREIGN KEY(hiscoreId) REFERENCES hiscore(id))",
 		NULL, NULL
 	},
-	{ NULL } // Sentinel
+	{ NULL, NULL, NULL } // Sentinel
 };
 
 static int

src/item.c

@@ -89,7 +89,7 @@ item_collected(Item *item, Player *player)
 			gui_log("You find nothing inside");
 	}
 
-	if (item->price) {
+	if (item->price > 0) {
 	    player->gold -= item->price;
 	    char costLabel[10];
 	    m_sprintf(costLabel, 10, "-$%.0f", item->price);

src/object.c

@@ -19,8 +19,6 @@
 #include "object.h"
 #include "gui.h"
 #include "util.h"
-#include "mixer.h"
-#include "random.h"
 #include "texturecache.h"
 
 Object *
@@ -36,7 +34,7 @@ object_create(void)
 }
 
 Object *
-object_create_fire()
+object_create_fire(void)
 {
 	Object *o = object_create();
 	Texture *t0 = texturecache_add("Objects/Effect0.png");
@@ -51,7 +49,7 @@ object_create_fire()
 }
 
 Object *
-object_create_green_gas()
+object_create_green_gas(void)
 {
 	Object *o = object_create();
 	Texture *t0 = texturecache_add("Objects/Effect0.png");

src/particle_engine.c

@@ -348,7 +348,7 @@ particle_engine_wind(Vector2d direction)
 }
 
 void
-particle_engine_heat()
+particle_engine_heat(void)
 {
 	unsigned int count = 5;
 

src/settings.c

@@ -41,7 +41,7 @@ DbQuery MIGRATE_COMMANDS[] = {
 			"value INTEGER)",
 		NULL, NULL
 	},
-	{ NULL } // Sentinel
+	{ NULL, NULL, NULL} // Sentinel
 };
 
 static int load_settings_cb(void *unused, int count, char **values, char **colNames);

src/timer.c

@@ -21,7 +21,7 @@
 #include "util.h"
 #include "timer.h"
 
-Timer* _timer_create()
+Timer* _timer_create(void)
 {
 	Timer *t = ec_malloc(sizeof(Timer));
 	t->startTime = 0;

src/tooltip_manager.c

@@ -128,7 +128,7 @@ Sprite* tooltip_manager_get_tooltip(TooltipType type)
 	return NULL;
 }
 
-void tooltip_manager_close()
+void tooltip_manager_close(void)
 {
 	tooltip_destroy(new_skill_tooltip);
 	tooltip_destroy(howto_tooltip);

src/trap.c

@@ -24,7 +24,7 @@
 #include "actiontextbuilder.h"
 
 Trap *
-trap_create()
+trap_create(void)
 {
 	Trap *trap = ec_malloc(sizeof(Trap));
 	trap->sprite = sprite_create();