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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <raylib.h>
#include "cJSON.h"
#include "game.h"
#include "player.h"
#include "wall.h"
extern Texture color_hills;
extern Texture color_desert;
struct game game;
void update_game(float dt) {
for (int i = 0; i < MAX_ENTITY_COUNT; i++) {
struct entity* current = &game.entities[i];
if (!entity_active(current))
continue;
update_entity(current, dt);
}
}
void draw_background() {
float image_scale =
(float)WINDOW_HEIGHT / game.background_texture.height;
float xpos = 0;
while (xpos < WINDOW_WIDTH) {
DrawTexturePro(game.background_texture, (Rectangle){
.x = 0,
.y = 0,
.width = game.background_texture.width,
.height = game.background_texture.height
}, (Rectangle) {
.x = xpos,
.y = 0,
.width = game.background_texture.width * image_scale,
.height = game.background_texture.height * image_scale
},
(Vector2) {0, 0},
0,
WHITE);
xpos += game.background_texture.width * image_scale;
}
}
void draw_game() {
draw_background();
for (int i = 0; i < MAX_ENTITY_COUNT; i++) {
const struct entity* current = &game.entities[i];
//Skip inactive entities
if (!entity_active(current))
continue;
draw_entity(current);
}
}
void init_game() {
memset(&game, 0, sizeof(struct game));
}
static void set_background(const char* background_name) {
if (strcmp(background_name, "color_hills") == 0)
game.background_texture = color_hills;
else if (strcmp(background_name, "color_desert") == 0)
game.background_texture = color_desert;
}
static void load_image_layer_object(const cJSON* layer);
static void load_tile_layer_object(const cJSON* layer);
void load_level_from_tiled_tmj(const char* filename) {
cJSON *level_data_json = cJSON_Parse(filename);
{
int length;
unsigned char* level_data_raw = LoadFileData(filename, &length);
level_data_json = cJSON_ParseWithLength((char*)level_data_raw, length);
UnloadFileData(level_data_raw);
}
const cJSON* layers =
cJSON_GetObjectItemCaseSensitive(level_data_json, "layers");
if (cJSON_IsArray(layers)) {
const cJSON* layer = NULL;
cJSON_ArrayForEach(layer, layers) {
const cJSON* type = cJSON_GetObjectItemCaseSensitive(layer, "type");
if (!cJSON_IsString(type))
continue;
if (strcmp(type->valuestring, "imagelayer") == 0) {
load_image_layer_object(layer);
} else if (strcmp(type->valuestring, "tilelayer") == 0) {
load_tile_layer_object(layer);
}
}
}
cJSON_Delete(level_data_json);
}
static void load_image_layer_object(const cJSON* layer) {
const cJSON* properties = NULL;
properties = cJSON_GetObjectItemCaseSensitive(layer, "properties");
if (cJSON_IsArray(properties)) {
const cJSON* property = NULL;
cJSON_ArrayForEach(property, properties) {
const cJSON* name = cJSON_GetObjectItemCaseSensitive(property, "name");
const cJSON* bg_name = cJSON_GetObjectItemCaseSensitive(property, "value");
if (!cJSON_IsString(name)
|| !cJSON_IsString(bg_name)
|| strcmp(name->valuestring, "bg_name") != 0)
continue;
set_background(bg_name->valuestring);
}
}
}
static void load_tile_layer_object(const cJSON* layer) {
const cJSON* width = cJSON_GetObjectItemCaseSensitive(layer, "width");
const cJSON* data = cJSON_GetObjectItemCaseSensitive(layer, "data");
int c = 0;
if (!cJSON_IsArray(data) || !cJSON_IsNumber(width))
return;
const cJSON* tile = NULL;
cJSON_ArrayForEach(tile, data) {
if (cJSON_IsNumber(tile) && tile->valueint != 0) {
int x_pos = (c % width->valueint) * BLOCK_WIDTH + BLOCK_WIDTH / 2;
int y_pos = (c / width->valueint) * BLOCK_HEIGHT + BLOCK_HEIGHT / 2;
add_wall(x_pos, y_pos, tile->valueint - 1);
}
c++;
}
}
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