input.h

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#ifndef __H__SYSTEMS_INPUT__
#define __H__SYSTEMS_INPUT__
 
#include "require.h"
 
#include "../engine/input.h"
 
static void system_process_input(system_payload_t payload,
                                 allocator_t temporary_allocator) {
  input_t *input = payload.input;
  GLFWwindow *window = payload.rendering_ctx->window;
 
  int keys[] = {GLFW_KEY_A, GLFW_KEY_D, GLFW_KEY_S, GLFW_KEY_W};
  int *outs[] = {&input->left, &input->right, &input->down, &input->up};
 
  for (int i = 0; i < 4; i++) {
    int k = keys[i];
    int state = glfwGetKey(window, k);
 
    switch (state) {
    case GLFW_PRESS:
      *outs[i] = 1;
      break;
    case GLFW_RELEASE:
      *outs[i] = 0;
      break;
    }
  }
}
 
static system_requirements_declaration_t system_decl_process_input = {
    .name = "system_process_input",
    .dependencies = 0,
    .dependency_count = 0,
    .entities_const = 0,
    .entities_mut = 0,
    .phase = SYSTEM_PHASE_PRE_UPDATE,
    .pin_to_main = false,
    .resources =
        SYSTEM_RESOURCE_MASK_INPUT | SYSTEM_RESOURCE_MASK_RENDERING_CONTEXT,
    .runner = system_process_input};
 
#endif