(#1118) Try to fix warnings on MacOS build

src/game/level/level_editor/action_picker.c

@@ -72,7 +72,7 @@ void action_picker_event(ActionPicker *picker,
 
             const float element_height = picker->widget.boundary.h / (float)ACTION_N;
 
-            for (size_t i = 0; i < ACTION_N; ++i) {
+            for (ActionType i = 0; i < ACTION_N; ++i) {
                 const Vec2f element_position =
                     vec_sum(
                         vec(picker->widget.boundary.x, picker->widget.boundary.y),

src/game/level/level_editor/layer_picker.c

@@ -134,7 +134,7 @@ int layer_picker_event(LayerPicker *layer_picker,
 
     switch (event->type) {
     case SDL_MOUSEBUTTONDOWN: {
-        for (size_t i = 0; i < LAYER_PICKER_N; ++i) {
+        for (LayerPicker i = 0; i < LAYER_PICKER_N; ++i) {
             const Rect cell = rect(
                 position.x,
                 size.y * (float) i + position.y,

src/game/level/level_editor/rect_layer.c

@@ -750,7 +750,10 @@ RectLayer *create_rect_layer_from_line_stream(LineStream *line_stream, const cha
         dynarray_push(layer->ids, id);
         dynarray_push(layer->colors, &color);
 
-        Action action = {0};
+        Action action = {
+            .type = ACTION_NONE,
+            .entity_id = {0}
+        };
 
         if (sscanf(line, "%d%n", (int*)&action.type, &n) > 0) {
             line += n;

src/main.c

@@ -27,7 +27,6 @@ static void print_usage(FILE *stream)
 
 int main(int argc, char *argv[])
 {
-    int a = 5;
     srand((unsigned int) time(NULL));
 
     Lt *lt = create_lt();

src/math/rect.c

@@ -81,7 +81,7 @@ void rect_object_impact(Rect object, Rect obstacle, int *sides)
     Rect int_area = rects_overlap_area(object, obstacle);
 
     if (int_area.w * int_area.h > 0.0f) {
-        for (int side = 0; side < RECT_SIDE_N; ++side) {
+        for (Rect_side side = 0; side < RECT_SIDE_N; ++side) {
             Line object_side = rect_side(object, side);
             Line int_side = rect_side(int_area, side);
 
@@ -105,7 +105,10 @@ Line rect_side(Rect rect, Rect_side side)
     const float x2 = rect.x + rect.w;
     const float y2 = rect.y + rect.h;
 
-    Line result = { 0 };
+    Line result = {
+        .p1 = {0, 0},
+        .p2 = {0, 0}
+    };
 
     switch (side) {
     case RECT_SIDE_LEFT: