From 2e779b6f400200438b7acb072babad9efcf0c8fc Mon Sep 17 00:00:00 2001
From: Treeki <treeki@gmail.com>
Date: Wed, 1 Feb 2012 00:29:26 +0100
Subject: tilegod updates

---
 src/tilegod.cpp | 222 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 tilegod.yaml    |  14 +++-
 2 files changed, 232 insertions(+), 4 deletions(-)
 create mode 100644 src/tilegod.cpp

diff --git a/src/tilegod.cpp b/src/tilegod.cpp
new file mode 100644
index 0000000..5162148
--- /dev/null
+++ b/src/tilegod.cpp
@@ -0,0 +1,222 @@
+#include <game.h>
+#include <sfx.h>
+
+//#define REIMPLEMENT
+
+extern "C" bool SpawnEffect(const char*, int, Vec*, S16Vec*, Vec*);
+
+class daChengeBlock_c : public dStageActor_c {
+	static daChengeBlock_c *build();
+
+	u32 _394;
+	u64 initialFlags;
+
+	enum Action { Destroy, Create };
+	enum Pattern { Fill, CheckerA, CheckerB };
+
+	int width, height;
+	Action action;
+	int blockType;
+	int isPermanent;
+	Pattern pattern;
+	u16 hasTriggered;
+
+	u32 _3BC;
+
+
+	int onCreate();
+	int onExecute();
+
+	void doStuff(Action action, bool wasCalledOnCreation);
+	void tryToTrigger();
+};
+
+#ifdef REIMPLEMENT
+daChengeBlock_c *daChengeBlock_c::build() {
+	return new(AllocFromGameHeap1(sizeof(daChengeBlock_c))) daChengeBlock_c;
+}
+
+
+
+int daChengeBlock_c::onCreate() {
+	hasTriggered = 0;
+
+	height = settings & 0xF;
+	width = (settings & 0xF0) >> 4;
+	blockType = (settings & 0xF000) >> 12;
+	pattern = (Pattern)((settings & 0xF0000) >> 16);
+	isPermanent = (settings & 0xF0000000) >> 28;
+
+	if (width == 0)
+		width++;
+	if (height == 0)
+		height++;
+
+	action = (Action)((settings & 0xF00) >> 8);
+
+	initialFlags = dFlagMgr_c::instance->flags & dStageActor_c::creatingFlagMask;
+
+	if (initialFlags) {
+		if (action == Destroy) {
+			doStuff(Destroy, true);
+		} else {
+			doStuff(Create, true);
+			hasTriggered = true;
+		}
+
+		if (isPermanent)
+			return 2;
+	}
+
+	return 1;
+}
+
+
+int daChengeBlock_c::onExecute() {
+	tryToTrigger();
+
+	if (!hasTriggered)
+		checkZoneBoundaries(0);
+
+	return 1;
+}
+
+
+#endif // REIMPLEMENT
+
+// Red, Brick, Blank/Unused, Stone, Wood, Blank
+static const u16 Tiles[] = {124, 2, 12, 123, 15, 0};
+
+void daChengeBlock_c::doStuff(Action action, bool wasCalledOnCreation) {
+	u16 perTilePatternFlag = 1, perRowPatternFlag = 1;
+
+	u16 worldX = ((u16)pos.x) & 0xFFF0;
+	u16 baseWorldX = worldX;
+	u16 worldY = ((u16)(-pos.y)) & 0xFFF0;
+
+	if (pattern == CheckerB) {
+		perTilePatternFlag = 0;
+		perRowPatternFlag = 0;
+	}
+
+	u16 tile;
+	if (action != Destroy) {
+		if (blockType & 8) {
+			// Specify a tile number
+			tile = 0x8000 | ((blockType & 3) << 8) | ((settings & 0xFF00000) >> 20);
+		} else {
+			// fall through
+			tile = Tiles[blockType];
+		}
+	} else {
+		tile = 0;
+	}
+
+	for (u16 y = 0; y < height; y++) {
+		for (u16 x = 0; x < width; x++) {
+			if (perTilePatternFlag) {
+				u16 *pExistingTile = dBgGm_c::instance->getPointerToTile(worldX, worldY, 0);
+				u16 existingTile = pExistingTile ? *pExistingTile : 0;
+
+				dBgGm_c::instance->placeTile(worldX, worldY, 0, tile);
+
+				if (!wasCalledOnCreation) {
+					Vec effectPos;
+
+					if (action == Destroy) {
+						if (blockType != 2) {
+							effectPos.x = ((float)(worldX)) + 8.0f;
+							effectPos.y = ((float)(-worldY)) - 8.0f;
+							effectPos.z = pos.z;
+
+							u16 shardType;
+							switch (existingTile) {
+								case 0x30: shardType = 0; break;
+								case 0x31: shardType = 3; break;
+								case 0x32: shardType = 4; break;
+								case 0x33: shardType = 2; break;
+								case 0x34: shardType = 1; break;
+								case 0x37: shardType = 5; break;
+								default: shardType = 0xFFFF;
+							}
+
+							if (shardType == 0xFFFF) {
+								SpawnEffect("Wm_en_burst_ss", 0, &effectPos, 0, 0);
+							} else {
+								u32 sets = (shardType << 8) | 3;
+								effectPos.y -= 8;
+								dEffectBreakMgr_c::instance->spawnTile(&effectPos, sets, 0);
+							}
+
+							Vec2 soundPos;
+							ConvertStagePositionToScreenPosition(&soundPos, &effectPos);
+							SoundPlayingClass::instance2->PlaySoundAtPosition(SE_OBJ_BLOCK_BREAK, &soundPos, 0);
+						}
+					} else {
+						effectPos.x = ((float)(worldX)) + 8.0f;
+						effectPos.y = ((float)(-worldY)) - 8.0f;
+						effectPos.z = pos.z;
+
+						if (blockType != 2) {
+							SpawnEffect("Wm_en_burst_ss", 0, &effectPos, 0, 0);
+						}
+					}
+				}
+			}
+
+			if (pattern != Fill) {
+				perTilePatternFlag ^= 1;
+			}
+
+			worldX += 16;
+		}
+
+		if (pattern != Fill) {
+			perRowPatternFlag ^= 1;
+			perTilePatternFlag = perRowPatternFlag;
+		}
+
+		worldX = baseWorldX;
+		worldY += 16;
+	}
+}
+
+
+#ifdef REIMPLEMENT
+void daChengeBlock_c::tryToTrigger() {
+	u64 result = spriteFlagMask & dFlagMgr_c::instance->flags;
+
+	if (action == Destroy) {
+		if (result & initialFlags) {
+			if (result) {
+				doStuff(Destroy, false);
+				hasTriggered = true;
+			} else {
+				doStuff(Create, false);
+				hasTriggered = false;
+			}
+
+			initialFlags = result;
+
+			if (isPermanent)
+				fBase_c::Delete();
+		}
+	} else {
+		if (result & initialFlags) {
+			if (result) {
+				doStuff(Create, false);
+				hasTriggered = true;
+			} else {
+				doStuff(Destroy, false);
+				hasTriggered = false;
+			}
+
+			initialFlags = result;
+
+			if (isPermanent)
+				fBase_c::Delete();
+		}
+	}
+}
+#endif
+
diff --git a/tilegod.yaml b/tilegod.yaml
index 235adf0..6da2163 100644
--- a/tilegod.yaml
+++ b/tilegod.yaml
@@ -1,12 +1,18 @@
 ---
-source_files: [../src/tilegod.S]
+source_files: [../src/tilegod.S, ../src/tilegod.cpp]
 hooks:
+#  - name: TileGodHack
+#    type: branch_insn
+#    branch_type: b
+#    src_addr_pal: 0x807E1668
+#    target_func: 'TileGodHack'
+
   - name: TileGodHack
     type: branch_insn
     branch_type: b
-    src_addr_pal: 0x807E1668
-    target_func: 'TileGodHack'
-    
+    src_addr_pal: 0x807E15D0
+    target_func: 'daChengeBlock_c::doStuff(daChengeBlock_c::Action, bool)'
+
   - name: GetTileFromTileTableHack
     type: branch_insn
     branch_type: b
-- 
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