breakhack/src/skillbar.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/>.
*/
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#include <stdlib.h>
#include "defines.h"
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#include "skillbar.h"
#include "texture.h"
#include "util.h"
#include "sprite.h"
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#include "keyboard.h"
#include "texturecache.h"
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static void
load_texture(SkillBar *bar, const char *path, SDL_Renderer *renderer)
{
static SDL_Color c_yellow = { 255, 255, 0, 255 };
Texture *t = texturecache_add(path);
t->dim.width = 16;
t->dim.height = 16;
for (unsigned int i = 0; i < 5; ++i) {
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char buffer[4];
Sprite *s = sprite_create();
s->pos = (Position) { i * 32 + 20, 20 };
s->dim = (Dimension) { 8, 8 };
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s->fixed = true;
sprite_load_text_texture(s, "GUI/SDS_8x8.ttf", 0, 8);
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m_sprintf(buffer, 4, "%u", i+1);
texture_load_from_text(s->textures[0], buffer, c_yellow, renderer);
linkedlist_append(&bar->sprites, s);
}
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}
static void
load_countdown_sprites(SkillBar *bar)
{
for (int i = 0; i < PLAYER_SKILL_COUNT; ++i) {
Sprite *s = sprite_create();
sprite_load_text_texture(s, "GUI/SDS_8x8.ttf", 0, 16);
s->fixed = true;
s->pos = (Position) { 8 + (32 * i), 8 };
s->dim = (Dimension) { 16, 16 };
bar->countdowns[i] = s;
}
}
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SkillBar *
skillbar_create(SDL_Renderer *renderer)
{
SkillBar *bar = ec_malloc(sizeof(SkillBar));
bar->sprites = linkedlist_create();
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bar->activationTimer = timer_create();
bar->lastActivation = 0;
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load_texture(bar, "GUI/GUI0.png", renderer);
load_countdown_sprites(bar);
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return bar;
}
static void
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render_frame(Camera *cam)
{
static SDL_Rect c_top_left = { 1*16, 10*16, 16, 16 };
static SDL_Rect c_top_right = { 3*16, 10*16, 16, 16 };
static SDL_Rect c_bottom_left = { 1*16, 12*16, 16, 16 };
static SDL_Rect c_bottom_right = { 3*16, 12*16, 16, 16 };
Texture *t = texturecache_get("GUI/GUI0.png");
SDL_Rect box = { 0, 0, 16, 16 };
for (unsigned int i = 0; i < MAP_ROOM_WIDTH; ++i) {
box.x = i*32;
box.y = 0;
texture_render_clip(t, &box, &c_top_left, cam);
box.y = 16;
texture_render_clip(t, &box, &c_bottom_left, cam);
box.x = i*32 + 16;
box.y = 0;
texture_render_clip(t, &box, &c_top_right, cam);
box.y = 16;
texture_render_clip(t, &box, &c_bottom_right, cam);
}
}
static void
render_sprites(SkillBar *bar, Camera *cam)
{
LinkedList *sprites = bar->sprites;
while (sprites) {
sprite_render(sprites->data, cam);
sprites = sprites->next;
}
}
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static void
render_activation_indicator(SkillBar *bar, Camera *cam)
{
if (!timer_started(bar->activationTimer))
return;
unsigned int ticks = timer_get_ticks(bar->activationTimer);
if (ticks > 500) {
timer_stop(bar->activationTimer);
return;
}
SDL_Rect square = { (bar->lastActivation - 1) * 32, 0, 32, 32 };
unsigned int opacity = (unsigned int) ticks/2;
SDL_SetRenderDrawColor(cam->renderer, 255, 255, 0, (Uint8)(255 - opacity));
SDL_RenderDrawRect(cam->renderer, &square);
}
static void
render_skill_countdown(SkillBar *bar, int index, unsigned int count, Camera *cam)
{
static SDL_Color color = { 255, 255, 255, 255 };
char buffer[5];
Sprite *s = bar->countdowns[index];
m_sprintf(buffer, 5, "%u", count);
texture_load_from_text(s->textures[0], buffer, color, cam->renderer);
sprite_render(s, cam);
}
static void
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render_skills(Player *player, Camera *cam)
{
static SDL_Rect activeSkillBox = { 0, 0, 32, 32 };
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for (int i = 0; i < PLAYER_SKILL_COUNT; ++i) {
if (!player->skills[i])
continue;
Skill *skill = player->skills[i];
if (skill->icon->dim.width >16)
skill->icon->pos = (Position) { i * 32, 0 };
else
skill->icon->pos = (Position) { 8 + i * 32, 8 };
sprite_render(skill->icon, cam);
if (player->skills[i]->active) {
activeSkillBox.x = i * 32;
SDL_SetRenderDrawColor(cam->renderer, 0, 0, 255, 100);
SDL_RenderFillRect(cam->renderer, &activeSkillBox);
}
}
}
static void
render_skill_unavailable(SkillBar *bar, Player *player, Camera *cam)
{
static SDL_Rect unavailableSkillBox = { 0, 0, 32, 32 };
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for (int i = 0; i < PLAYER_SKILL_COUNT; ++i) {
if (!player->skills[i])
continue;
if (player->skills[i]->resetCountdown > 0) {
unavailableSkillBox.x = i * 32;
SDL_SetRenderDrawColor(cam->renderer, 255, 0, 0, 70);
SDL_RenderFillRect(cam->renderer, &unavailableSkillBox);
render_skill_countdown(bar, i, player->skills[i]->resetCountdown, cam);
}
}
}
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void
skillbar_render(SkillBar *bar, Player *player, Camera *cam)
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{
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render_frame(cam);
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render_skills(player, cam);
render_sprites(bar, cam);
render_skill_unavailable(bar, player, cam);
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render_activation_indicator(bar, cam);
}
void
skillbar_handle_event(SkillBar *bar, SDL_Event *event)
{
if (event->type != SDL_KEYDOWN)
return;
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unsigned int key = 0;
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if (keyboard_press(SDLK_1, event))
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key = 1;
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else if (keyboard_press(SDLK_2, event))
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key = 2;
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else if (keyboard_press(SDLK_3, event))
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key = 3;
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else if (keyboard_press(SDLK_4, event))
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key = 4;
else if (keyboard_press(SDLK_5, event))
key = 5;
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if (key != 0) {
bar->lastActivation = key;
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timer_start(bar->activationTimer);
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}
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}
void
skillbar_destroy(SkillBar *bar)
{
while (bar->sprites)
sprite_destroy(linkedlist_pop(&bar->sprites));
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for (unsigned int i = 0; i < PLAYER_SKILL_COUNT; ++i)
if (bar->countdowns[i])
sprite_destroy(bar->countdowns[i]);
timer_destroy(bar->activationTimer);
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free(bar);
}