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Single thread + inputs

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This commit is contained in:
Marc
2023-01-21 12:09:39 +01:00
parent 8a93d29021
commit 41792a17d3
6 changed files with 176 additions and 52 deletions
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src/input.c
+46
View File
@@ -0,0 +1,46 @@
#include "input.h"
#include <SDL2/SDL_scancode.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
keyEvent_t * events[SDL_NUM_SCANCODES];
int event_counts[SDL_NUM_SCANCODES];
void input_init(void) {
memset(events, 0, SDL_NUM_SCANCODES * sizeof(keyEvent_t *));
memset(event_counts, 0, SDL_NUM_SCANCODES * sizeof(int));
}
void input_poll(SDL_Scancode code) {
printf("Scancode: %d\n", code);
keyEvent_t * handlers = events[code];
for(int i = 0; i < event_counts[code]; i++) {
handlers[i]();
}
}
void input_listen(SDL_Scancode code, keyEvent_t handler) {
event_counts[code]++;
events[code] = (keyEvent_t *)realloc(events[code], event_counts[code] * sizeof(keyEvent_t));
events[code][event_counts[code] - 1] = handler;
}
void input_removeListener(SDL_Scancode code, keyEvent_t handler) {
bool found = false;
for(int i = 0; i < event_counts[code]; i++) {
if(events[code][i] == handler) {
found = true;
break;
}
if(found) {
if(i == event_counts[code] - 1) {
break;
}
events[code][i] = events[code][i + 1];
}
}
event_counts[code]--;
}
src/input.h
+16
View File
@@ -0,0 +1,16 @@
#ifndef __INPUT_H__
#define __INPUT_H__
#include <SDL2/SDL_scancode.h>
typedef void(*keyEvent_t)(void);
//renderer facing
void input_init(void);
void input_poll(SDL_Scancode);
//user facing
void input_listen(SDL_Scancode code, keyEvent_t);
void input_removeListener(SDL_Scancode code, keyEvent_t handler);
#endif
src/main.c
+68 -33
View File
@@ -1,52 +1,87 @@
#include "input.h"
#include "renderer.h"
#include "text.h"
#include <SDL2/SDL_mixer.h>
#include <SDL2/SDL_image.h>
#include <SDL2/SDL_scancode.h>
#include <SDL2/SDL_surface.h>
#include <time.h>
#include <unistd.h>
long timecode;
long iter;
Mix_Music *prout;
static void space(void) {
printf("space!\n");
if(Mix_PlayMusic(prout, -1) != 0){
printf("Music sound could not be played!\n"
"SDL_Error: %s\n", Mix_GetError());
Mix_FreeMusic(prout);
running = false;
}
}
static void game_main(void) {
long delta = time(NULL) - timecode;
//main game code
if(iter == 0) {
RenderObject_t text;
SDL_Color white = {255, 255, 255, 255};
TTF_Init();
if(text_renderText(&text, 0.f, 0.f, 1000, 1, white, "./assets/fonts/arial.ttf", 25, "Hello World") < 0){
printf("error");
exit(1);
}
SDL_Surface* img = IMG_Load("./assets/img/pp.png");
RenderObject_t duck = {
0.2,
0.2,
0,
0.50,
0.50,
0,
img
};
renderer_renderObject(text);
renderer_renderObject(duck);
input_listen(SDL_SCANCODE_SPACE, space);
}
//update time
timecode = time(NULL);
iter++;
}
int main(void) {
renderer_main();
Mix_Init(MIX_INIT_MP3);
if(Mix_OpenAudio(22050, MIX_DEFAULT_FORMAT, 2, 4096) != 0){
if(Mix_OpenAudio(22050, MIX_DEFAULT_FORMAT, 2, 4096) != 0){
printf("Music sound could not be open!\n"
"SDL_Error: %s\n", Mix_GetError());
return 0;
"SDL_Error: %s\n", Mix_GetError());
running = false;
}
Mix_Music *music = Mix_LoadMUS("./assets/music/pet.mp3");
if(Mix_PlayMusic(music, -1) != 0){
printf("Music sound could not be played!\n"
"SDL_Error: %s\n", Mix_GetError());
Mix_FreeMusic(music);
return 0;
}
RenderObject_t text;
SDL_Color white = {255, 255, 255, 255};
TTF_Init();
if(text_renderText(&text, 0.f, 0.f, 1000, 1, white, "./assets/fonts/arial.ttf", 25, "Hello World") < 0){
printf("error");
prout = Mix_LoadMUS("./assets/music/pet.mp3");
if(prout == NULL) {
fprintf(stderr, "Prout not found!\n");
exit(1);
}
SDL_Surface* img = IMG_Load("./assets/img/pp.png");
iter = 0;
timecode = time(NULL);
RenderObject_t duck = {
0.2,
0.2,
0,
0.50,
0.50,
0,
img
};
Mix_Init(MIX_INIT_MP3);
renderer_main(game_main);
Mix_FreeMusic(prout);
renderer_renderObject(text);
renderer_renderObject(duck);
while(1);
Mix_FreeMusic(music);
Mix_CloseAudio();
text_freeFontCache();
}
src/renderer.c
+38 -15
View File
@@ -11,7 +11,7 @@
#include <string.h>
#include <stdbool.h>
#include <math.h>
#include <pthread.h>
#include "input.h"
typedef struct RenderItem {
RenderObject_t object;
@@ -28,12 +28,17 @@ pthread_t thread;
pthread_mutex_t mutex;
SDL_Window* win;
bool running;
SDL_Renderer * renderer;
static int compartSort(const RenderItem_t * a, const RenderItem_t * b) {
return a->object.z - b->object.z;
}
//int (*compar)(const void [.size], const void [.size], void *)
static void * render_thread(void *) {
void renderer_main(void(*game_main)(void)) {
// returns zero on success else non-zero
if (SDL_Init(SDL_INIT_EVERYTHING) != 0) {
printf("error initializing SDL: %s\n", SDL_GetError());
@@ -56,10 +61,38 @@ static void * render_thread(void *) {
objectStorageSize = 1000;
objects = malloc(objectStorageSize);
pthread_mutex_unlock(&mutex);
input_init();
running = true;
while(running) {
SDL_RenderClear(renderer);
game_main();
SDL_Event event;
// Events management
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_QUIT:
// handling of close button
running = false;
printf("Quitting my job!\n");
break;
case SDL_KEYDOWN:
// keyboard API for key pressed
input_poll(event.key.keysym.scancode);
break;
}
}
//no need to make an extra render pass
if(!running) break;
while(true) {
//SDL_RenderClear(renderer);
for(int i = 0; i < objectCount; i++) {
RenderItem_t * object = &objects[i];
if(object->cache == NULL) {
@@ -82,16 +115,6 @@ static void * render_thread(void *) {
SDL_RenderPresent(renderer);
SDL_Delay(1000 / 400); //400fps or u a pussy
}
return NULL;
}
void renderer_main() {
pthread_mutex_init(&mutex, NULL);
pthread_mutex_lock(&mutex);
pthread_create(&thread, NULL, render_thread, NULL);
pthread_mutex_lock(&mutex);
pthread_mutex_destroy(&mutex);
}
RenderId_t renderer_renderObject(RenderObject_t object) {
src/renderer.h
+5 -2
View File
@@ -3,10 +3,13 @@
#include <SDL2/SDL_surface.h>
#include <SDL2/SDL_render.h>
#include <stdbool.h>
typedef int RenderId_t;
static SDL_Renderer * renderer;
//goes to false on exit
extern bool running;
extern SDL_Renderer * renderer;
typedef struct RenderObject {
float x,y;
@@ -20,7 +23,7 @@ typedef struct MonitorSize {
int width, height;
} MonitorSize_t;
void renderer_main(void);
void renderer_main(void(*game_main)(void)) ;
RenderId_t renderer_renderObject(RenderObject_t);
void renderer_removeObject(RenderId_t);