1 files changed, 49 insertions, 0 deletions
diff --git a/src/wall_item.c b/src/wall_item.c
new file mode 100644
index 0000000..a9f556c
--- /dev/null
+++ b/src/wall_item.c
@@ -0,0 +1,49 @@
+#include "../include/wall_item.h"
+
+static image* get_wallitem_img(wall_item_type item, wall_item_data data) {
+	switch(item) {
+		case WALLITEM_GUN: return get_image_of_gun(data.gun);
+	}
+
+	return 0;
+}
+
+void create_wallitem(vec3f position, wall_item_type type, wall_item_data data) {
+	wall_item item;
+	item.active = true;
+	item.position = position;
+	item.item = type;
+	item.data = data;
+	item.start_h = position.z;
+	item.time_active = 0.0f;
+	item.img = get_wallitem_img(type, data);
+
+	for (int i = 0; i < MAX_WALLITEMS; i++) {
+		wall_item ei = wallitems[i];
+		if (ei.active) continue;
+		wallitems[i] = item;
+		return;
+	}
+}
+
+void update_wallitems() {
+	#define MAX_HEIGHT_DIFF_FOR_WALLITEM (0.1f)
+
+	for (int i = 0; i < MAX_WALLITEMS; i++) {
+		wall_item item = wallitems[i];
+		if (!item.active) continue;
+
+		wallitems[i].time_active += update_delta;
+		wallitems[i].position.z = MAX_HEIGHT_DIFF_FOR_WALLITEM * sin (2 * M_PI * 0.5f * (wallitems[i].time_active) + 0) + item.start_h;
+	}
+}
+
+void draw_wallitems(platform_window* window) {
+	for (int i = 0; i < MAX_WALLITEMS; i++) {
+		wall_item item = wallitems[i];
+		if (!item.active) continue;
+
+		box box = get_render_box_of_square(window, item.position, (vec3f){1,1,2});
+		renderer->render_image(item.img, box.tl_u.x, box.tl_u.y, box.tr_u.x - box.tl_u.x, box.br_u.y - box.tr_u.y);
+	}
+}
+\ No newline at end of file