first commit

xpet.h

@@ -0,0 +1,81 @@
+#pragma once
+
+#include <X11/Xlib.h>
+
+#define VERSION "v0.1"
+
+#define N_KEYBINDS 3
+#define ABS(a) ((a) < 0 ? -(a) : (a))
+#define CLAMP(v, l, h) ((v) < (l) ? (l) : ((v) > (h) ? (h) : (v)))
+
+enum state {
+	SLEEPING, IDLE,
+	N, S, E, W,
+	NW, NE, SW, SE,
+	DRAGGED,
+	HAPPY,
+	STATE_LAST
+};
+
+struct animation {
+	struct frame* frames;
+	const char* name;
+	int*   frame_durations; /* NULL = use FRAME_DURATION */
+	int    n_frames;
+	Bool   loop;
+};
+
+struct bind {
+	KeySym sym;
+	unsigned long mask;
+};
+
+struct frame {
+	Pixmap pix;
+	Pixmap mask;
+	int    duration;
+};
+
+struct mouse {
+	int    x;
+	int    y;
+};
+
+struct pet {
+	Window window;
+	Bool   chasing;
+	Bool   frozen;
+	enum state state;
+	int    x;
+	int    y;
+	double subpixel_x;   /* subpixel x */
+	double subpixel_y;   /* subpixel y */
+
+	struct animation* current_animation;
+	int    current_frame;
+	long   frame_time;
+
+	/* random wander state */
+	int    target_x;
+	int    target_y;
+	long   wander_wait; /* time to wait at destination */
+
+	/* sleep state */
+	long   frozen_time; /* time spent frozen */
+
+	/* happy state */
+	enum state previous_state; /* state before becoming happy */
+	long   happy_time; /* time spent happy */
+
+	/* dragging state */
+	Bool   dragging;
+	int    drag_offset_x;
+	int    drag_offset_y;
+	Bool   was_chasing;  /* was chasing before drag */
+	Bool   was_frozen;   /* was frozen before drag */
+
+	/* speech bubble */
+	const char* speech;
+	long   speech_time;
+	Window bubble_window;
+};