[Reverse-engineering] [th04] Custom entity structure 1: Kurumi's spaw…

…n rays

Part of P0240, funded by JonathKane.

th04/main/boss/b2.cpp

@@ -0,0 +1,38 @@
+/// Stage 2 Boss - Kurumi
+/// ---------------------
+
+#include "platform.h"
+#include "pc98.h"
+#include "th01/math/subpixel.hpp"
+#include "th04/main/playfld.hpp"
+#include "th04/main/custom.hpp"
+
+// Spawn rays
+// ----------
+
+#define KURUMI_SPAWNRAY_COUNT 6
+
+enum kurumi_spawnray_flag_t {
+	B2SF_FREE = 0,
+	B2SF_GROW = 1,
+	B2SF_SHRINK = 2,
+};
+
+struct kurumi_spawnray_t {
+	kurumi_spawnray_flag_t flag;
+	/* ------------------------- */ int8_t unused;
+	PlayfieldPoint target;
+	PlayfieldPoint origin;
+	PlayfieldPoint velocity;
+	/* ------------------------- */ int8_t padding[12];
+};
+
+#define kurumi_spawnrays (\
+	reinterpret_cast<kurumi_spawnray_t *>(custom_entities) \
+)
+
+void pascal near kurumi_spawnrays_add(
+	subpixel_t distance_from_center_x, unsigned char angle
+)
+;
+// ----------