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breakhack/src/gui.c

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/*
* BreakHack - A dungeone crawler RPG
* Copyright (C) 2018 Linus Probert <linus.probert@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "gui.h"
#include "util.h"
#include "map.h"
#include "texturecache.h"
#define DEFAULT_LOG { NULL, 50, 0, 200 }
#define DEFAULT_EVENT_MESSAGES { NULL, 5, 0, 200 }
#define POS_Y_COLLECTABLES 64
#define POS_Y_XPBAR 128
static SDL_Rect frame_top_left = { 16, 160, 16, 16 };
static SDL_Rect frame_top_right = { 48, 160, 16, 16 };
static SDL_Rect frame_bottom_left = { 16, 192, 16, 16 };
static SDL_Rect frame_bottom_right = { 48, 192, 16, 16 };
static SDL_Rect frame_top = { 32, 160, 16, 16 };
static SDL_Rect frame_bottom = { 32, 192, 16, 16 };
static SDL_Rect frame_center = { 32, 176, 16, 16 };
static SDL_Rect frame_left = { 16, 176, 16, 16 };
static SDL_Rect frame_right = { 48, 176, 16, 16 };
static struct LogData_t {
char **log;
unsigned int len;
unsigned int count;
unsigned int strlen;
} log_data = DEFAULT_LOG;
static struct GuiEventMsgData_t {
char **messages;
unsigned int len;
unsigned int count;
unsigned int strlen;
} event_messages = DEFAULT_EVENT_MESSAGES;
static Sprite*
gui_create_frame(unsigned int width, unsigned int height, Camera *cam);
static void
gui_malloc_log(void)
{
if (log_data.log != NULL)
return;
unsigned int i;
log_data.log = ec_malloc(log_data.len * sizeof(char*));
for (i = 0; i < log_data.len; ++i)
log_data.log[i] = NULL;
}
static void
gui_malloc_eventmessages(void)
{
if (event_messages.messages != NULL)
return;
unsigned int i;
event_messages.messages = ec_malloc(event_messages.len * sizeof(char*));
for (i = 0; i < event_messages.len; ++i)
event_messages.messages[i] = NULL;
}
static Sprite*
create_xp_sprite(Texture *t, SDL_Rect clip, Position pos)
{
Sprite *s = sprite_create();
sprite_set_texture(s, t, 0);
s->fixed = true;
s->clip = clip;
s->pos = pos;
return s;
}
static Sprite*
create_label_sprite(Position pos)
{
Sprite *s = sprite_create();
s->fixed = true;
s->pos = pos;
sprite_load_text_texture(s, "GUI/SDS_8x8.ttf", 0, LABEL_FONT_SIZE);
return s;
}
static void
init_sprites(Gui *gui, Camera *cam)
{
Texture *t;
unsigned int i;
t = texturecache_add("GUI/GUI0.png");
/*
* Add XP bar decoration
*/
// Left end
linkedlist_append(&gui->sprites, create_xp_sprite(
t,
(SDL_Rect) { 6 * 16, 0, 16, 16 },
(Position) { 16, POS_Y_XPBAR }
));
// Right end
linkedlist_append(&gui->sprites, create_xp_sprite(
t,
(SDL_Rect) { 8 * 16, 0, 16, 16 },
(Position) { 16 + (16 * 7), POS_Y_XPBAR }
));
for (i = 1; i < 7; ++i) {
linkedlist_append(&gui->sprites, create_xp_sprite(
t,
(SDL_Rect) { 7 * 16, 0, 16, 16 },
(Position) { 16 + (i * 16), POS_Y_XPBAR }
));
}
for (i = 0; i < 8; ++i) {
linkedlist_append(&gui->xp_bar, create_xp_sprite(
t,
(SDL_Rect) { 6 * 16, 4 * 16, 16, 16 },
(Position) { 16 + (i * 16), POS_Y_XPBAR }
));
}
Sprite *s;
t = texturecache_add("Items/Potion.png");
s = sprite_create();
s->fixed = true;
sprite_set_texture(s, t, 0);
s->clip = CLIP16(0, 0);
s->pos = (Position) { 16, POS_Y_COLLECTABLES };
linkedlist_append(&gui->sprites, s);
t = texturecache_add("Items/Money.png");
s = sprite_create();
s->fixed = true;
sprite_set_texture(s, t, 0);
s->clip = CLIP16(16, 16);
s->pos = (Position) { 16, POS_Y_COLLECTABLES + 16 };
linkedlist_append(&gui->sprites, s);
t = texturecache_add("Items/ShortWep.png");
s = sprite_create();
s->fixed = true;
sprite_set_texture(s, t, 0);
s->clip = CLIP16(0, 0);
s->pos = (Position) { 16, POS_Y_COLLECTABLES + 32 };
linkedlist_append(&gui->sprites, s);
gui->rightFrame = gui_create_frame(RIGHT_GUI_WIDTH/16,
RIGHT_GUI_HEIGHT/16,
cam);
gui->bottomFrame = gui_create_frame(BOTTOM_GUI_WIDTH/16,
BOTTOM_GUI_HEIGHT/16,
cam);
}
Gui*
gui_create(Camera *cam)
{
Texture *t;
unsigned int i;
Gui *gui = ec_malloc(sizeof(Gui));
gui->sprites = linkedlist_create();
gui->health = linkedlist_create();
gui->xp_bar = linkedlist_create();
for (i = 0; i < LOG_LINES_COUNT; ++i) {
t = texture_create();
texture_load_font(t, "GUI/SDS_8x8.ttf", LOG_FONT_SIZE);
gui->log_lines[i] = t;
}
gui->event_message = texture_create();
texture_load_font(gui->event_message, "GUI/SDS_8x8.ttf", EVENT_MESSAGE_FONT_SIZE);
gui->event_message_timer = timer_create();
gui->labels[CURRENT_XP_LABEL] = create_label_sprite((Position) { 16, POS_Y_XPBAR + 18 });
gui->labels[LEVEL_LABEL] = create_label_sprite((Position) { 16, POS_Y_XPBAR + 18 + 14 });
gui->labels[DUNGEON_LEVEL_LABEL] =
create_label_sprite((Position) {
16,
POS_Y_XPBAR + 18 + (2*14)
});
gui->labels[HEALTH_POTION_LABEL] =
create_label_sprite((Position) {
32,
POS_Y_COLLECTABLES + 5
});
gui->labels[GOLD_LABEL] =
create_label_sprite((Position) {
32,
POS_Y_COLLECTABLES + 16 + 5
});
gui->labels[DAGGER_LABEL] =
create_label_sprite((Position) {
32,
POS_Y_COLLECTABLES + 32 + 5
});
gui_malloc_log();
gui_malloc_eventmessages();
init_sprites(gui, cam);
return gui;
}
static void
set_max_health(Gui *gui, int max)
{
Texture *texture0, *texture1;
int i;
assert(max % 3 == 0);
if (((unsigned int) max / 3) == (unsigned int) linkedlist_size(gui->health))
return;
// Clear sprite list
while (gui->health != NULL)
sprite_destroy(linkedlist_pop(&gui->health));
texture0 = texturecache_add("GUI/GUI0.png");
texture1 = texturecache_add("GUI/GUI1.png");
for (i = 0; i < max/3; ++i) {
Sprite *sprite = sprite_create();
sprite->fixed = true;
sprite->animate = false;
sprite->clip = (SDL_Rect) { 0, 16, 16, 16 };
sprite->pos = (Position) { 16 + (i%8)*16, 16 + ((i-(i%8))/8)*16 };
sprite_set_texture(sprite, texture0, 0);
sprite_set_texture(sprite, texture1, 1);
linkedlist_append(&gui->health, sprite);
}
}
static void
set_current_health(Gui *gui, int current)
{
if (current < 0)
current = 0;
int partial = current % 3;
int full = (current - partial)/3;
int count = 0;
LinkedList *item = gui->health;
while (item != NULL) {
Sprite *sprite = (Sprite*) item->data;
if (count < full) {
sprite->clip.x = 0;
} else if (count == full) {
sprite->clip.x = 64 - (partial * 16);
} else {
sprite->clip.x = 64;
}
sprite->animate = current < 9;
++count;
item = item->next;
}
}
static void
update_xp_bar(Gui *gui, ExperienceData *data)
{
unsigned int xp_from_levelup = data->current - data->previousLevel;
unsigned int xp_required_from_last_level = data->nextLevel - data->previousLevel;
float xp_step = ((float)xp_required_from_last_level) / 32; // 4 * 8
float xp_current_step = (float) xp_from_levelup / xp_step;
unsigned int partial_xp_block = ((unsigned int) xp_current_step) % 4;
unsigned int full_xp_blocks =
(unsigned int) ((xp_current_step - (float) partial_xp_block) / 4);
LinkedList *xp_bars = gui->xp_bar;
unsigned int i = 0;
while (xp_bars != NULL) {
Sprite *s = xp_bars->data;
s->hidden = false;
xp_bars = xp_bars->next;
if (i < full_xp_blocks) {
s->clip.x = 6 * 16;
}
else if (i == full_xp_blocks && partial_xp_block != 0) {
s->clip.x = (6 * 16) + (16 * (4 - partial_xp_block));
}
else {
s->hidden = true;
}
++i;
}
}
void
gui_update_player_stats(Gui *gui, Player *player, Map *map, SDL_Renderer *renderer)
{
// TODO(Linus): Perhaps split this up a bit?
// some static functions maybe?
static unsigned int last_level = 0;
static int last_xp = -1;
static double last_gold = -1;
static unsigned int dungeon_level = 0;
static int max_health = -1;
static int current_health = -1;
static int current_potion_sips = -1;
static int current_dagger_count = -1;
static SDL_Color color = { 255, 255, 255, 255 };
char buffer[200];
ExperienceData data = player_get_xp_data(player);
if (max_health != player->stats.maxhp) {
max_health = player->stats.maxhp;
set_max_health(gui, max_health);
}
if (current_health != player->stats.hp) {
current_health = player->stats.hp;
set_current_health(gui, current_health);
}
if (last_xp != (int) data.current) {
update_xp_bar(gui, &data);
}
if (dungeon_level != (unsigned int) map->level) {
m_sprintf(buffer, 200, "Dungeon level: %d", map->level);
texture_load_from_text(gui->labels[DUNGEON_LEVEL_LABEL]->textures[0], buffer, color, renderer);
gui->labels[DUNGEON_LEVEL_LABEL]->dim = gui->labels[DUNGEON_LEVEL_LABEL]->textures[0]->dim;
dungeon_level = (unsigned int) map->level;
}
if (current_potion_sips != (int) player->potion_sips) {
m_sprintf(buffer, 200, "x %u", (unsigned int) player->potion_sips);
texture_load_from_text(gui->labels[HEALTH_POTION_LABEL]->textures[0], buffer, color, renderer);
gui->labels[HEALTH_POTION_LABEL]->dim = gui->labels[HEALTH_POTION_LABEL]->textures[0]->dim;
current_potion_sips = player->potion_sips;
}
if (current_dagger_count != (int) player->daggers) {
m_sprintf(buffer, 200, "x %u", (unsigned int) player->daggers);
texture_load_from_text(gui->labels[DAGGER_LABEL]->textures[0], buffer, color, renderer);
gui->labels[DAGGER_LABEL]->dim = gui->labels[DAGGER_LABEL]->textures[0]->dim;
current_dagger_count = (int) player->daggers;
}
if (last_gold != player->gold) {
m_sprintf(buffer, 200, "x %.2f", player->gold);
texture_load_from_text(gui->labels[GOLD_LABEL]->textures[0], buffer, color, renderer);
gui->labels[GOLD_LABEL]->dim = gui->labels[GOLD_LABEL]->textures[0]->dim;
last_gold = player->gold;
}
if (last_xp != (int) data.current) {
m_sprintf(buffer, 200, "XP: %u / %u", data.current, data.nextLevel);
texture_load_from_text(gui->labels[CURRENT_XP_LABEL]->textures[0], buffer, color, renderer);
gui->labels[CURRENT_XP_LABEL]->dim = gui->labels[CURRENT_XP_LABEL]->textures[0]->dim;
last_xp = data.current;
}
if (last_level != data.level) {
m_sprintf(buffer, 200, "Level: %u", data.level);
texture_load_from_text(gui->labels[LEVEL_LABEL]->textures[0], buffer, color, renderer);
gui->labels[LEVEL_LABEL]->dim = gui->labels[LEVEL_LABEL]->textures[0]->dim;
last_level = data.level;
}
}
static Sprite*
gui_create_frame(unsigned int width, unsigned int height, Camera *cam)
{
Sprite *frame = sprite_create();
Texture *texture = texture_create();
texture->dim = (Dimension) {
width * 16,
height * 16
};
frame->textures[0] = texture;
frame->destroyTextures = true;
frame->pos = (Position) { 0, 0 };
frame->dim = (Dimension) { width*16, height*16 };
texture_create_blank(texture,
SDL_TEXTUREACCESS_TARGET,
cam->renderer);
Texture *source = texturecache_get("GUI/GUI0.png");
SDL_SetRenderTarget(cam->renderer, texture->texture);
SDL_RenderClear(cam->renderer);
SDL_Rect box = { 0, 0, 16, 16 };
unsigned int i, j;
for (i = 0; i < width; ++i) {
for (j = 0; j < height; ++j) {
box.x = i * 16;
box.y = j * 16;
if (i == 0 && j == 0) {
texture_render_clip(source,
&box,
&frame_top_left,
cam);
} else if (i == (width - 1) && j == 0) {
texture_render_clip(source,
&box,
&frame_top_right,
cam);
} else if (i == 0 && j == (height - 1)) {
texture_render_clip(source,
&box,
&frame_bottom_left,
cam);
} else if (i == (width - 1) && j == (height - 1)) {
texture_render_clip(source,
&box,
&frame_bottom_right,
cam);
} else if (i == 0) {
texture_render_clip(source,
&box,
&frame_left,
cam);
} else if (i == (width - 1)) {
texture_render_clip(source,
&box,
&frame_right,
cam);
} else if (j == 0) {
texture_render_clip(source,
&box,
&frame_top,
cam);
} else if (j == (height - 1)) {
texture_render_clip(source,
&box,
&frame_bottom,
cam);
} else {
texture_render_clip(source,
&box,
&frame_center,
cam);
}
}
}
SDL_SetRenderTarget(cam->renderer, NULL);
return frame;
}
void
gui_render_panel(Gui *gui, Camera *cam)
{
sprite_render(gui->rightFrame, cam);
LinkedList *item = gui->health;
while (item != NULL) {
Sprite *s = item->data;
sprite_render(s, cam);
item = item->next;
}
item = gui->xp_bar;
while (item != NULL) {
Sprite *s = item->data;
sprite_render(s, cam);
item = item->next;
}
item = gui->sprites;
while (item != NULL) {
Sprite *s = item->data;
sprite_render(s, cam);
item = item->next;
}
for (int i = 0; i < LABEL_COUNT; ++i)
sprite_render(gui->labels[i], cam);
}
void
gui_log(const char *fmt, ...)
{
char buffer[200];
char *new_message;
unsigned int i;
char tstamp[10];
va_list args;
new_message = ec_malloc(log_data.strlen * sizeof(char));
timestamp(tstamp, 10);
va_start(args, fmt);
m_vsprintf(buffer, 200, fmt, args);
va_end(args);
m_sprintf(new_message, log_data.strlen, "%s > %s", tstamp, buffer);
log_data.count++;
if (log_data.count > log_data.len) {
log_data.count = log_data.len;
free(log_data.log[log_data.count-1]);
log_data.log[log_data.count-1] = NULL;
}
for (i = log_data.count - 1; i > 0; --i) {
log_data.log[i] = log_data.log[i-1];
}
log_data.log[0] = new_message;
}
void
gui_event_message(const char *fmt, ...)
{
char *new_message = ec_malloc(sizeof(char) * event_messages.strlen);
va_list args;
va_start(args, fmt);
m_vsprintf(new_message, event_messages.strlen, fmt, args);
va_end(args);
if (event_messages.count == event_messages.len) {
error("To many event messages");
free(new_message);
return;
}
event_messages.messages[event_messages.count] = new_message;
event_messages.count++;
}
void
gui_render_log(Gui *gui, Camera *cam)
{
static SDL_Color color = { 255, 255, 255, 255 };
unsigned int i;
unsigned int render_count;
SDL_Rect box = { 16, 0, 16, 16 };
render_count = LOG_LINES_COUNT > log_data.count ? log_data.count : LOG_LINES_COUNT;
sprite_render(gui->bottomFrame, cam);
for (i = 0; i < render_count; ++i) {
Texture *t;
box.y = 16 + ((LOG_FONT_SIZE+5) * i);
t = gui->log_lines[i];
texture_load_from_text(t, log_data.log[i], color, cam->renderer);
box.w = t->dim.width;
box.h = t->dim.height;
texture_render(t, &box, cam);
}
}
void
gui_render_event_message(Gui *gui, Camera *cam)
{
static SDL_Color fg_color = { 255, 255, 255, 255 };
static SDL_Rect box = { 0, 0, 150, 50 };
if (timer_started(gui->event_message_timer)
&& timer_get_ticks(gui->event_message_timer) < EVENT_MESSAGE_DISPLAY_TIME)
{
texture_render(gui->event_message, &box, cam);
return;
}
if (event_messages.count > 0) {
texture_load_from_text(gui->event_message,
event_messages.messages[0],
fg_color,
cam->renderer);
box.x = (GAME_VIEW_WIDTH/2) - (gui->event_message->dim.width/2);
box.y = (GAME_VIEW_HEIGHT/2) - (gui->event_message->dim.height/2);
box.w = gui->event_message->dim.width;
box.h = gui->event_message->dim.height;
free(event_messages.messages[0]);
for (size_t i = 1; i < event_messages.count; ++i) {
event_messages.messages[i-1] = event_messages.messages[i];
}
event_messages.count--;
texture_render(gui->event_message, &box, cam);
timer_start(gui->event_message_timer);
}
}
void
gui_clear_message_log(void)
{
for (size_t i = 0; i < event_messages.count; ++i)
free(event_messages.messages[i]);
event_messages.count = 0;
for (size_t i = 0; i < log_data.count; ++i)
free(log_data.log[i]);
log_data.count = 0;
}
static void
destroy_log(void)
{
if (log_data.log == NULL)
return;
unsigned int i;
for (i = 0; i < log_data.count; ++i)
free(log_data.log[i]);
free(log_data.log);
log_data.log = NULL;
}
static void
destroy_event_messages(void)
{
if (event_messages.messages == NULL)
return;
for (unsigned int i = 0; i < event_messages.count; ++i)
free(event_messages.messages[i]);
free(event_messages.messages);
event_messages.messages = NULL;
}
void
gui_destroy(Gui *gui)
{
destroy_log();
destroy_event_messages();
timer_destroy(gui->event_message_timer);
texture_destroy(gui->event_message);
sprite_destroy(gui->bottomFrame);
sprite_destroy(gui->rightFrame);
while (gui->sprites != NULL)
sprite_destroy(linkedlist_pop(&gui->sprites));
while (gui->health != NULL)
sprite_destroy(linkedlist_pop(&gui->health));
while (gui->xp_bar != NULL)
sprite_destroy(linkedlist_pop(&gui->xp_bar));
for (int i = 0; i < LOG_LINES_COUNT; ++i)
texture_destroy(gui->log_lines[i]);
for (int i = 0; i < LABEL_COUNT; ++i)
sprite_destroy(gui->labels[i]);
free(gui);
}
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