# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1713298817 -7200
# Node ID e3cacdd636e41e558e223b64eef6bc3554b610f6
# Parent  5a592625e2f9fbb5e917aa4be8c1537d29f83a26
implement mouse motion and key press events

diff -r 5a592625e2f9 -r e3cacdd636e4 src/ascension/context.h
--- a/src/ascension/context.h	Tue Apr 16 22:06:17 2024 +0200
+++ b/src/ascension/context.h	Tue Apr 16 22:20:17 2024 +0200
@@ -30,6 +30,7 @@
 
 #include "datatypes.h"
 #include "window.h"
+#include "input.h"
 #include "ui/font.h"
 
 #include <cx/buffer.h>
@@ -49,6 +50,7 @@
 typedef struct AscContext {
     unsigned int flags;
     CxBuffer error_buffer;
+    AscInput input;
     AscWindow windows[ASC_MAX_WINDOWS];
     AscWindow *active_window;
     AscFont fonts[ASC_MAX_FONTS];
@@ -65,6 +67,10 @@
 void asc_context_initialize(void);
 void asc_context_destroy(void);
 
+/**
+ * Signals the context that we want to quit the application.
+ */
+void asc_context_quit(void);
 
 /**
  * Dispatches events and synchronizes all initialized windows.
diff -r 5a592625e2f9 -r e3cacdd636e4 src/ascension/input.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/ascension/input.h	Tue Apr 16 22:20:17 2024 +0200
@@ -0,0 +1,48 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ * Copyright 2024 Mike Becker. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ASCENSION_INPUT_H
+#define ASCENSION_INPUT_H
+
+#include "window.h"
+
+#include <SDL2/SDL_scancode.h>
+
+typedef struct AscInput AscInput;
+
+struct AscInput {
+    int mouse_x;
+    int mouse_y;
+    int mouse_xrel;
+    int mouse_yrel;
+    bool keys[SDL_NUM_SCANCODES];
+};
+
+#define asc_key_pressed(scancode) \
+    (asc_context.input.keys[SDL_SCANCODE_##scancode])
+
+#endif //ASCENSION_INPUT_H
diff -r 5a592625e2f9 -r e3cacdd636e4 src/ascension/scene.h
--- a/src/ascension/scene.h	Tue Apr 16 22:06:17 2024 +0200
+++ b/src/ascension/scene.h	Tue Apr 16 22:20:17 2024 +0200
@@ -55,7 +55,7 @@
     asc_scene_free_func free_func;
     asc_scene_update_func update_func;
     asc_scene_draw_func draw_func;
-    unsigned depth;
+    unsigned depth; // TODO: do we really need this bullshit?
     asc_vec3f position;
     asc_vec3f rotation;
     asc_vec3f scale;
diff -r 5a592625e2f9 -r e3cacdd636e4 src/context.c
--- a/src/context.c	Tue Apr 16 22:06:17 2024 +0200
+++ b/src/context.c	Tue Apr 16 22:20:17 2024 +0200
@@ -87,6 +87,10 @@
     asc_dprintf("Ascension context destroyed.");
 }
 
+void asc_context_quit(void) {
+    asc_set_flag(asc_context.flags, ASC_FLAG_QUIT);
+}
+
 static void asc_event_window_resized(Uint32 id, Sint32 width, Sint32 height) {
     for (unsigned int i = 0 ; i < ASC_MAX_WINDOWS ; i++) {
         if (asc_context.windows[i].id == id) {
@@ -99,6 +103,10 @@
 }
 
 bool asc_loop_next(void) {
+    // reset mouse motion
+    asc_context.input.mouse_xrel = 0;
+    asc_context.input.mouse_yrel = 0;
+
     // dispatch SDL events
     SDL_Event event;
     while (SDL_PollEvent(&event)) {
@@ -115,13 +123,20 @@
                     );
                 break;
             }
+            case SDL_MOUSEMOTION: {
+                // accumulate relative motion
+                asc_context.input.mouse_xrel += event.motion.xrel;
+                asc_context.input.mouse_yrel += event.motion.yrel;
+                // update absolute position
+                asc_context.input.mouse_x = event.motion.x;
+                asc_context.input.mouse_y = event.motion.y;
+                break;
+            }
             case SDL_KEYDOWN:
-                // TODO: remove this code and implement key press map instead
-                if (event.key.keysym.sym == SDLK_ESCAPE)
-                    return false;
+                asc_context.input.keys[event.key.keysym.scancode] = true;
                 break;
             case SDL_KEYUP:
-                // TODO: implement key press map
+                asc_context.input.keys[event.key.keysym.scancode] = false;
                 break;
         }
     }
diff -r 5a592625e2f9 -r e3cacdd636e4 test/snake.c
--- a/test/snake.c	Tue Apr 16 22:06:17 2024 +0200
+++ b/test/snake.c	Tue Apr 16 22:20:17 2024 +0200
@@ -100,7 +100,12 @@
             SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR,
                     "Fatal Error", asc_get_error(), window->window);
             asc_clear_error();
-            break;
+            asc_context_quit();
+        }
+
+        // quit application on ESC key press
+        if (asc_key_pressed(ESCAPE)) {
+            asc_context_quit();
         }
     } while (asc_loop_next());