refactor scripts and add tile selection indicator

run.sh

···
+#!/usr/bin/env sh
+set -e
+
+for s in "$@"
+do
+	echo "-> $s"
+	sh scripts/$s.sh
+	echo "-> done"
+done

scripts/_config.sh

···
+#!/usr/bin/env sh
+set -e
+
+export CFLAGS="-Wall -Wextra -Werror -std=c99 -Iinclude/ -c"
+export LFLAGS="-lraylib -lm -lGL -lpthread -ldl -lrt -lX11"

scripts/build-prod.sh

···
+#!/usr/bin/env sh
+set -e
+
+. scripts/_config.sh
+
+export CFLAGS="$CFLAGS -O3"
+export LFLAGS="$LFLAGS -O3"
+
+sh scripts/functions/init.sh
+sh scripts/functions/compile.sh
+sh scripts/functions/link.sh
+sh scripts/functions/cleanup.sh

scripts/build.sh

···
 #!/usr/bin/env sh
 set -e
-. scripts/_config.sh
 
-mkdir -p build/
-
-if [ -e "build/keraforge" ]
-then
-	rm build/keraforge
-fi
+. scripts/_config.sh
 
-echo ": building"
-for f in `find src/ -name '*.c'`
-do
-	ff=$(echo "$f" | tr '/' '_')
-	gcc -Wall -Wextra -Werror -std=c99 -Iinclude/ -c $f -o build/${ff%.c}.o
-done
-
-echo ": linking"
-gcc -lraylib -lm -lGL -lpthread -ldl -lrt -lX11 build/*.o -o build/keraforge
-
-rm build/*.o
+sh scripts/functions/init.sh
+sh scripts/functions/compile.sh
+sh scripts/functions/link.sh
+sh scripts/functions/cleanup.sh

scripts/clean.sh

···
+#!/usr/bin/env sh
+set -e
+
+if [ -e "build" ]
+then
+	rm -rf build
+fi

scripts/functions/cleanup.sh

···
+#!/usr/bin/env sh
+set -e
+
+echo ": cleaning up"
+rm build/*.o

scripts/functions/compile.sh

···
+#!/usr/bin/env sh
+set -e
+
+echo ": compiling"
+for f in `find src/ -name '*.c'`
+do
+	ff=$(echo "$f" | tr '/' '_')
+	gcc $CFLAGS $f -o build/${ff%.c}.o
+done
+

scripts/functions/init.sh

···
+#!/usr/bin/env sh
+set -e
+
+mkdir -p build/
+
+if [ -e "build/keraforge" ]
+then
+	rm build/keraforge
+fi

scripts/functions/link.sh

···
+#!/usr/bin/env sh
+set -e
+
+echo ": linking"
+gcc -o build/keraforge build/*.o $LFLAGS

scripts/run.sh

···
+#!/usr/bin/env sh
+set -e
+
+if [ -e "./build/keraforge" ]
+then
+	./build/keraforge
+else
+	echo ": error: no build available"
+	exit 1
+fi

src/main.c

···
 
 static Camera2D cam;
 static f32 dt = 0;
+static struct kf_vec2(u32) select = { 0, 0 };
 
 static void _player_tick(struct kf_world *world, struct kf_actor *self)
 {
···
 	{
 		player->tick(world, player);
 
+		Vector2 v = GetScreenToWorld2D(GetMousePosition(), cam);
+		select.x = v.x / KF_TILE_SIZE_PX;
+		select.y = v.y / KF_TILE_SIZE_PX;
+
 		BeginDrawing();
 		ClearBackground(WHITE);
 
 		BeginMode2D(cam);
 		kf_world_draw(world, cam);
+		if (select.x < world->width && select.y < world->height)
+			DrawRectangleLines(select.x * KF_TILE_SIZE_PX, select.y * KF_TILE_SIZE_PX, KF_TILE_SIZE_PX, KF_TILE_SIZE_PX, WHITE);
 		player->draw(world, player);
 		EndMode2D();