moved code from header to source files

src/event.c

@@ -0,0 +1,19 @@
+#include "tim.h"
+
+bool tim_is_event_key(TimEventType type, TimKey key) {
+    return tim.event.type == type && tim.event.key == key;
+}
+
+bool tim_is_key_press(TimKey key) {
+    return tim_is_event_key(TimEvent_Key, key);
+}
+
+bool tim_is_mouse_over(TimRect r) {
+    i32 x = tim.event.x;
+    i32 y = tim.event.y;
+    return x >= r.x && x < r.x + r.w && y >= r.y && y < r.y + r.h;
+}
+
+bool tim_is_mouse_click_over(TimRect r) {
+    return tim_is_event_key(TimEvent_Mouse, TimKey_MouseButtonLeft) && tim_is_mouse_over(r);
+}