Initial independent commit

1 files changed, 138 insertions, 0 deletions

diff --git a/include/engine/engine.h b/include/engine/engine.h
new file mode 100644
index 0000000..bd961a6
--- /dev/null
+++ b/include/engine/engine.h
@@ -0,0 +1,138 @@
+#ifndef ENGINE_H
+#define ENGINE_H
+
+#include <stdbool.h>
+
+#include <engine/types.h>
+#include <engine/stack.h>
+#include <engine/vector.h>
+#include <engine/memory.h>
+#include <engine/logging.h>
+#include <engine/state.h>
+
+typedef struct {
+  u32 texture_id;
+  i32 x, y,
+      w, h;
+} RenderUnit;
+
+typedef struct {
+  const char *font_path;
+  i32 ptsize;
+} FontSpec;
+
+typedef struct {
+  i32 width;
+  i32 height;
+  const char *path;
+} TextureSpec;
+
+typedef struct Window Window;
+
+typedef struct Keybinding {
+  i32 keycode;
+  i32 modifiers;
+  void (*action)(void*);
+} Keybinding;
+
+typedef struct {
+  void    *data; /* Contains textures and such */
+  u64 data_len;
+
+  Window *window;
+  bool    quit;
+
+  u64 frame;
+  f32 fps_target;
+
+  v2_i32 mouse_pos;
+
+  v2_i32 mousedown;
+  v2_i32 mouseup;
+
+  bool mouse_lclick;
+  bool mouse_rclick;
+
+  i32 camera_x;
+  i32 camera_y;
+
+  /* Text input/editing is currently not used/implemented */
+  char  *edit_text;
+  usize edit_pos;
+
+  memory *mem;
+
+  void *bindings;
+} Platform;
+
+/* Essential functions */
+Platform *engine_init(
+    const char        *windowtitle,
+    v2_i32             windowsize,
+    const f32          render_scale,
+    const u32          flags,
+    const usize       initial_memory,
+    const FontSpec    *fonts[],
+    const TextureSpec *textures[]);
+
+i32 engine_run(Platform *p, StateType initial_state);
+
+void engine_stop(Platform *p);
+
+/* Utility functions */
+void engine_fps_max(u64 cap);
+void engine_bindkey(i32 key, void (*action)(void*));
+
+void render_set_zoom(f32 new_zoom);
+void render_adjust_zoom(f32 diff);
+void render_add_unit(RenderUnit *u);
+
+u32 get_time(void);
+v2_i32   get_windowsize(void);
+v2_i32  *get_mousepos(void);
+
+#include "rendering.h"
+
+#ifdef ENGINE_INTERNALS
+
+#define MAX(a,b) (a > b ? a : b)
+
+/* Window */
+struct Window {
+  SDL_Window    *window;
+  SDL_Renderer  *renderer;
+  f32          render_scale;
+
+  v2_i32 windowsize;
+
+  i32* game_w;
+  i32* game_h;
+};
+
+typedef struct {
+  SDL_Texture *texture;
+  const i32 tilesize;
+  const i32 width;
+  const i32 height;
+} Texture;
+
+struct Resources {
+	usize textures_len;
+	usize textures_size;
+	usize fonts_len;
+
+	usize texturepaths_len;
+	usize fontpaths_len;
+
+	/* Paths for our sources, kept in case the user wants to reload them */
+	TextureSpec **texture_paths;
+	FontSpec **font_paths;
+
+	/* Our actual sources */
+	Texture **textures;
+	TTF_Font **fonts;
+};
+
+
+#endif
+#endif