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#include <stdlib.h>
#include <assert.h>
#include "main.h"
#include "list.h"
#include "tux.h"
#include "interface.h"
#include "layer.h"
#include "image.h"
#include "screen_world.h"
static list_t *listLayer;
static bool_t isLayerInit = FALSE;
bool_t isLayerInicialized()
{
return isLayerInit;
}
/*
* Inicializuje globalny zoznam vsrtiev
*/
void initLayer()
{
listLayer = newList();
isLayerInit = TRUE;
}
/*
* 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, j;
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;
for( i = 0 ; i < listLayer->count ; i++ )
{
this = (layer_t *)listLayer->list[i];
if( this->layer == new->layer )
{
for( j = i ; j < listLayer->count ; j++ )
{
this = (layer_t *)listLayer->list[j];
if( this->y+this->h > new->y+new->h )
{
insList(listLayer, j, new);
return;
}
}
}
}
addList(listLayer, new);
}
/*
* 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();
}
void drawLayerCenter(int x, int y)
{
layer_t *this;
int screen_x, screen_y;
int i;
getCenterScreen(&screen_x, &screen_y, x, y);
for( i = 0 ; i < listLayer->count ; i++ )
{
this = (layer_t *)listLayer->list[i];
if( (this->x - screen_x) + this->w < 0 || (this->x - screen_x) > WINDOW_SIZE_X ||
(this->y - screen_y) + this->h < 0 || (this->y - screen_y) > WINDOW_SIZE_Y )
{
continue;
}
drawImage(this->image,
this->x - screen_x, this->y - screen_y,
this->px, this->py,
this->w, this->h);
//printf("%d %d\n", this->x - screen_x, this->y - screen_y);
}
destroyListItem(listLayer, free);
listLayer = newList();
}
void flushLayer()
{
destroyListItem(listLayer, free);
listLayer = newList();
}
/*
* Odstrani zoznam vrtsiev z pamete.
*/
void quitLayer()
{
destroyListItem(listLayer, free);
isLayerInit = FALSE;
}
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