1 files changed, 115 insertions, 0 deletions
diff --git a/src/layer.c b/src/layer.c
new file mode 100755
index 0000000..0ea2bfe
--- /dev/null
+++ b/src/layer.c
@@ -0,0 +1,115 @@
+
+#include <stdlib.h>
+#include <assert.h>
+
+#include "main.h"
+#include "interface.h"
+#include "list.h"
+#include "layer.h"
+#include "image.h"
+
+static list_t *listLayer;
+
+static bool_t isLayerInit = FALSE;
+
+bool_t isLayerInicialized()
+{
+	return isLayerInit;
+}
+
+/*
+ * Inicializuje globalny zoznam vsrtiev
+ */
+void initLayer()
+{
+	listLayer = newList();
+}
+
+/*
+ * Prida novu polozku do zoznamu vrstiev
+ * *img - obrazok, ktory obsahuje polozka
+ * x y w h - suradnca kam sa obrazok vykresli a jeho rozmery
+ * px py pw ph - suradnica casti obrazka *img ktora sa ma zobrazit
+ * layer - vrstva na ktorej sa zobrazi obrazok
+ */
+void addLayer(SDL_Surface *img,
+		int x,int y, int px,int py,
+		int w,int h, int player)
+{
+	layer_t *new;
+	layer_t *this;
+	int i;
+
+	assert( img != NULL );
+
+	new = malloc( sizeof(layer_t) );
+	new->x = x;
+	new->y = y;
+	new->w = w;
+	new->h = h;
+	new->px = px;
+	new->py = py;
+	new->layer = player;
+	new->image = img;
+
+	if( listLayer->count == 0 )
+	{
+		addList(listLayer, new);
+		return;
+	}
+
+	i = 0;
+	this = (layer_t *)listLayer->list[0];
+
+	//vyhladaj svoju vrstvu
+	while( i < listLayer->count && this->layer < new->layer )
+	{
+		this = (layer_t *)listLayer->list[++i];
+	}
+
+	//porovnaj s vyskami na tvojej vrstve,
+	//ak neexistuje, rovno to tam hod
+	this = (layer_t *)listLayer->list[i];
+
+	while( i < listLayer->count && this->y+this->h < new->y+new->h && new->layer == this->layer )
+	{
+		this = (layer_t *)listLayer->list[++i];
+	}
+
+	insList(listLayer, i, new);
+	isLayerInit = TRUE;
+}
+
+/*
+ * Vykresli vsetky polozky na obrazovku
+ * poukadane podla vrstvy a suradnice Y+H
+ * po dokresleni sa zoznam uvolni.
+ */
+void drawLayer()
+{
+	layer_t *this;
+	int i;
+
+	for( i = 0 ; i < listLayer->count ; i++ )
+	{
+		this = (layer_t *)listLayer->list[i];
+
+		drawImage(this->image,
+			this->x, this->y,
+			this->px, this->py,
+			this->w, this->h);
+	}
+
+	destroyListItem(listLayer, free);
+	listLayer = newList();
+}
+
+/*
+ * Odstrani zoznam vrtsiev z pamete.
+ */
+void quitLayer()
+{
+	destroyListItem(listLayer, free);
+	isLayerInit = FALSE;
+}
+