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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 "world.h"
static list_t *listLayer;
static bool_t isLayerInit = FALSE;
bool_t layer_is_inicialized()
{
return isLayerInit;
}
/*
* Initialize global list of the layers
*/
void layer_init()
{
listLayer = list_new();
isLayerInit = TRUE;
}
/*
* Add image to queue for rendering
* *img - image to be rendered
* x,y - coordinates where to draw the image
* w,h - width and height of rendered part of image
* px,py - coordinates of upper left corner of rendered part of image
* layer - on which layer to draw
* [0] - under Tuxanek; [1] same as Tuxanek; [2] over Tuxanek
*/
void addLayer(image_t *img, int x, int y, int px, int py, int w, int h, int player)
{
layer_t *new;
layer_t *actual;
int actual_value;
int new_value;
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;
new_value = player * WINDOW_SIZE_Y + y + h;
/* here we are sure, that we want to insert it somewhere else than the begining */
for (i = 0; i < listLayer->count; i++) {
actual = list_get(listLayer, i);
actual_value = actual->layer * WINDOW_SIZE_Y + actual->y + actual->h;
if (actual_value > new_value) {
list_ins(listLayer, i, new);
return;
}
}
list_add(listLayer, new);
}
/*
* Draws all items onto the screen according to the layer and coordinate Y+H
* After drawing frees the list
*/
void layer_draw_all()
{
layer_t *this;
int i;
for (i = 0; i < listLayer->count; i++) {
this = (layer_t *) listLayer->list[i];
image_draw(this->image, this->x, this->y, this->px, this->py, this->w, this->h);
}
/*printf("listLayer->count = %d\n", listLayer->count);*/
list_destroy_item(listLayer, free);
listLayer = list_new();
}
void layer_draw_center(int x, int y)
{
layer_t *this;
int screen_x, screen_y;
int i;
/*int count = 0;*/
arena_get_center_screen(&screen_x, &screen_y, x, y, WINDOW_SIZE_X, WINDOW_SIZE_Y);
for (i = 0; i < listLayer->count; i++) {
this = (layer_t *) listLayer->list[i];
if (this->x + this->w < screen_x ||
this->x > screen_x + WINDOW_SIZE_X ||
this->y + this->h < screen_y ||
this->y > screen_y + WINDOW_SIZE_Y) {
continue;
}
/*count++;*/
image_draw(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);*/
}
/*printf("count = %d\n", count);*/
list_destroy_item(listLayer, free);
listLayer = list_new();
}
void layer_draw_slpit(int local_x, int local_y, int x, int y, int w, int h)
{
layer_t *this;
int i;
/*int count = 0;*/
for (i = 0; i < listLayer->count; i++) {
this = (layer_t *) listLayer->list[i];
if (this->x + this->w < x || this->x > x + w ||
this->y + this->h < y || this->y > y + h) {
continue;
}
/*count++;*/
if (local_x + (this->x - x) < local_x) {
int z;
z = local_x - (local_x + (this->x - x));
this->x += z;
this->px += z;
this->w -= z;
}
if (local_x + (this->x - x) + this->w > local_x + w) {
this->w -= (local_x + (this->x - x) + this->w) - (local_x + w);
}
if (local_y + (this->y - y) < local_y) {
int z;
z = local_y - (local_y + (this->y - y));
this->y += z;
this->py += z;
this->h -= z;
}
if (local_y + (this->y - y) + this->h > local_y + h) {
this->h -= (local_y + (this->y - y) + this->h) - (local_y + h);
}
image_draw(this->image, local_x + (this->x - x), local_y + (this->y - y),
this->px, this->py, this->w, this->h);
/*printf("%d %d\n", this->x - screen_x, this->y - screen_y);*/
}
/*printf("count = %d\n", count);*/
list_destroy_item(listLayer, free);
listLayer = list_new();
}
void layer_flush()
{
list_destroy_item(listLayer, free);
listLayer = list_new();
}
/*
* Delete list of layers from memory
*/
void layer_quit()
{
list_destroy_item(listLayer, free);
isLayerInit = FALSE;
}
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