create /apps/temapltes/ structure, clean up cmake files to use directory name for binary name directly

apps/templates/c/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.21)
+project(twngame LANGUAGES C)
+
+if(NOT CMAKE_BUILD_TYPE)
+        set(CMAKE_BUILD_TYPE Debug)
+endif()
+
+add_subdirectory($ENV{TWNROOT} $ENV{TWNROOT}/build)
+
+set(SOURCE_FILES
+        game.c
+        state.h
+)
+
+cmake_path(GET CMAKE_SOURCE_DIR STEM LAST_ONLY GAME_PROJECT_NAME)
+use_townengine(${GAME_PROJECT_NAME} "${SOURCE_FILES}" ${CMAKE_CURRENT_SOURCE_DIR})

apps/templates/c/data/twn.toml

@@ -0,0 +1,26 @@
+# This file contains everything about the engine and your game that can be
+# configured before it runs.
+#
+# Optional settings are commented out, with their default values shown.
+# Invalid values in these settings will be ignored.
+
+# Data about your game as an application
+[about]
+title = "Template"
+developer = "You"
+app_id = "template"
+dev_id = "you"
+
+# Game runtime details
+[game]
+resolution = [ 640, 480 ]
+#debug = true
+
+# Engine tweaks. You probably don't need to change these
+[engine]
+#ticks_per_second = 60 # minimum of 8
+#keybind_slots = 3 # minimum of 1
+#texture_atlas_size = 2048 # minimum of 32
+#font_texture_size = 2048 # minimum of 1024
+#font_oversampling = 4 # minimum of 0
+#font_filtering = "linear" # possible values: "nearest", "linear"

apps/templates/c/game.c

@@ -0,0 +1,27 @@
+#include "twn_game_api.h"
+#include "state.h"
+
+#include <stdlib.h>
+
+
+void game_tick(void) {
+    /* do state initialization when engine asks for it */
+    /* it could happen multiple times per application run, as game code is reloadable */
+    if (ctx.initialization_needed) {
+        /* application data could be stored in ctx.udata and retrieved anywhere */
+        if (!ctx.udata)
+            ctx.udata = calloc(1, sizeof (struct state));
+    }
+
+    /* a lot of data is accessible from `ctx`, look into `townengine/context.h` for more */
+
+    struct state *state = ctx.udata;
+    ++state->counter;
+}
+
+
+void game_end(void) {
+    /* do your deinitialization here */
+    struct state *state = ctx.udata;
+    free(state);
+}

apps/templates/c/state.h

@@ -0,0 +1,12 @@
+#ifndef STATE_H
+#define STATE_H
+
+#include "twn_game_api.h"
+
+/* populate it with state information */
+struct state {
+    uint64_t counter;
+};
+
+
+#endif