start adding mouse input processing

2 files changed, 33 insertions, 1 deletions

diff --git a/src/systems/input.c b/src/systems/input.c
index 292d438..fc62db8 100644
--- a/src/systems/input.c
+++ b/src/systems/input.c
@@ -1,11 +1,17 @@
 #include "input.h"
 
+#include <assert.h>
 #include <glfw3.h>
+#include <string.h>
 
 #include "log.h"
 
+static input_state *g_input;  // Use a global to simplify caller code
+
 bool input_system_init(input_state *input, GLFWwindow *window) {
   INFO("Input init");
+  memset(input, 0, sizeof(input_state));
+
   input->window = window;
   // Set everything to false. Could just set memory to zero but where's the fun in that
   for (int i = 0; i < KEYCODE_MAX; i++) {
@@ -14,9 +20,16 @@ bool input_system_init(input_state *input, GLFWwindow *window) {
     input->just_released_keys[i] = false;
   }
 
+  g_input = input;
+
+  assert(input->mouse.x_delta == 0);
+  assert(input->mouse.y_delta == 0);
+
   return true;
 }
 
+void input_system_shutdown(input_state *input) {}
+
 void input_update(input_state *input) {
   // --- update keyboard input
 
@@ -75,3 +88,9 @@ void input_update(input_state *input) {
 
   input->mouse = new_mouse_state;
 }
+
+bool key_is_pressed(keycode key) { return g_input->depressed_keys[key]; }
+
+bool key_just_pressed(keycode key) { return g_input->just_pressed_keys[key]; }
+
+bool key_just_released(keycode key) { return g_input->just_released_keys[key]; }
\ No newline at end of file
diff --git a/src/systems/keys.h b/src/systems/keys.h
index 090bb49..a76e101 100644
--- a/src/systems/keys.h
+++ b/src/systems/keys.h
@@ -2,5 +2,18 @@
 
 typedef enum keycode {
   // TODO: add all keycodes
-  KEYCODE_MAX
+  KEYCODE_SPACE = 32,
+  KEYCODE_A = 65,
+  KEYCODE_D = 68,
+  KEYCODE_S = 83,
+  KEYCODE_W = 87,
+  KEYCODE_ESCAPE = 256,
+  KEYCODE_ENTER = 257,
+  KEYCODE_TAB = 258,
+  KEYCODE_BACKSPACE = 259,
+  KEYCODE_KEY_RIGHT = 262,
+  KEYCODE_KEY_LEFT = 263,
+  KEYCODE_KEY_DOWN = 264,
+  KEYCODE_KEY_UP = 265,
+  KEYCODE_MAX = 348
 } keycode;
\ No newline at end of file