refactoring, API fixes and shop mostly finished

12 files changed, 292 insertions, 177 deletions

diff --git a/include/g3dhax.h b/include/g3dhax.h
index 8a2063a..85dc922 100644
--- a/include/g3dhax.h
+++ b/include/g3dhax.h
@@ -322,7 +322,7 @@ namespace m3d {
 			bool setup(nw4r::g3d::ResMdl modelRes, nw4r::g3d::ResAnmChr anmRes,
 					mAllocator_c *allocator, u32 *sizeOutPtr);
 
-			void bind(/*b*/mdl_c *model, nw4r::g3d::ResAnmChr anmRes, int unk);
+			void bind(/*b*/mdl_c *model, nw4r::g3d::ResAnmChr anmRes, bool playsOnce);
 	};
 
 	class anmVis_c : public fanm_c {
@@ -333,7 +333,7 @@ namespace m3d {
 			bool setup(nw4r::g3d::ResMdl modelRes, nw4r::g3d::ResAnmVis anmRes,
 					mAllocator_c *allocator, u32 *sizeOutPtr);
 
-			void bind(/*b*/mdl_c *model, nw4r::g3d::ResAnmVis anmRes, int unk);
+			void bind(/*b*/mdl_c *model, nw4r::g3d::ResAnmVis anmRes, bool playsOnce);
 	};
 
 	class anmClr_c : public fanm_c {
diff --git a/include/game.h b/include/game.h
index 48c7f65..c4a9238 100755
--- a/include/game.h
+++ b/include/game.h
@@ -132,6 +132,11 @@ class GameMgr {
 		u8 _AFC, _AFD, _AFE[88];

 		u8 _B56[4];

 		u8 _B5A, _B5B;

+

+		void giveOneStockPowerup(int type); // 800BB330

+		void takeOneStockPowerup(int type); // 800BB380

+		int getStockPowerupCount(int type); // 800BB3D0

+		void resetStockPowerupCount(int type); // 800BB410

 };

 

 extern GameMgr *GameMgrP;

diff --git a/kamek_pal.x b/kamek_pal.x
index 7cfd502..0332692 100644
--- a/kamek_pal.x
+++ b/kamek_pal.x
@@ -1343,7 +1343,7 @@ SECTIONS {
 	__dt__Q23m3d8anmChr_cFv = 0x800260c0;
 	vf0C__Q23m3d8anmChr_cFv = 0x8002a210;
 	setup__Q23m3d8anmChr_cFQ34nw4r3g3d6ResMdlQ34nw4r3g3d9ResAnmChrP12mAllocator_cPUi = 0x80165210;
-	bind__Q23m3d8anmChr_cFPQ23m3d5mdl_cQ34nw4r3g3d9ResAnmChri = 0x80165330;
+	bind__Q23m3d8anmChr_cFPQ23m3d5mdl_cQ34nw4r3g3d9ResAnmChrb = 0x80165330;
 	internalBind__Q23m3d8anmChr_cFv = 0x801653c0;
 
 	/* m3d::anmVis_c */
@@ -1351,7 +1351,7 @@ SECTIONS {
 	__dt__Q23m3d8anmVis_cFv = 0x809b2090;
 	vf0C__Q23m3d8anmVis_cFv = 0x809b3c20;
 	setup__Q23m3d8anmVis_cFQ34nw4r3g3d6ResMdlQ34nw4r3g3d9ResAnmVisP12mAllocator_cPUi = 0x80167d80;
-	bind__Q23m3d8anmVis_cFPQ23m3d5mdl_cQ34nw4r3g3d9ResAnmVisi = 0x80167ea0;
+	bind__Q23m3d8anmVis_cFPQ23m3d5mdl_cQ34nw4r3g3d9ResAnmVisb = 0x80167ea0;
 	internalBind__Q23m3d8anmVis_cFv = 0x80167f90;
 
 	/* m3d::anmClr_c */
diff --git a/koopatlas.yaml b/koopatlas.yaml
index eea87e6..3556996 100644
--- a/koopatlas.yaml
+++ b/koopatlas.yaml
@@ -13,6 +13,7 @@ source_files:
   - ../src/koopatlas/pathmanager.cpp
   - ../src/koopatlas/shop.cpp
   - ../src/koopatlas/starcoin.cpp
+  - ../src/texmapcolouriser.cpp
 
 hooks:
   - name: BuildWorldMap # WORLD_MAP
diff --git a/src/koopatlas/core.cpp b/src/koopatlas/core.cpp
index 6fb030a..249861f 100644
--- a/src/koopatlas/core.cpp
+++ b/src/koopatlas/core.cpp
@@ -265,7 +265,7 @@ bool WMInit_SetupExtra(void *ptr) {
 	// it is created in dScKoopatlas_c::onCreate
 
 	SpammyReport("creating SHOP\n");
-	wm->shop = (dWMShop_c*)CreateParentedObject(WM_SHOP, wm, 0, 0);
+	wm->shop = (dWMShop_c*)CreateParentedObject(WM_SHOP, wm, 0, 2);
 
 	SpammyReport("creating Star Coin Menu\n");
 	wm->coins = (dWMStarCoin_c*)CreateParentedObject(WM_STARCOIN, wm, 0, 0);
diff --git a/src/koopatlas/hud.cpp b/src/koopatlas/hud.cpp
index 2479133..ab093ef 100644
--- a/src/koopatlas/hud.cpp
+++ b/src/koopatlas/hud.cpp
@@ -2,145 +2,6 @@
 #include <newer.h>
 
 
-dTexMapColouriser_c::dTexMapColouriser_c() {
-	texmap = 0;
-	original = 0;
-	mine = 0;
-}
-
-void *EGG__Heap__alloc(unsigned long size, int unk, void *heap);
-void EGG__Heap__free(void *ptr, void *heap);
-
-dTexMapColouriser_c::~dTexMapColouriser_c() {
-	resetAndClear();
-}
-
-void dTexMapColouriser_c::resetAndClear() {
-	texmap = 0;
-	if (mine) {
-		EGG__Heap__free(mine, 0);
-		mine = 0;
-	}
-}
-
-void dTexMapColouriser_c::setTexMap(nw4r::lyt::TexMap *tm) {
-	OSReport("Colourising TexMap: %p (w:%d h:%d)\n", tm, tm->width, tm->height);
-	if (texmap)
-		resetAndClear();
-
-	if (tm->mBits.textureFormat != GX_TF_IA8) {
-		OSReport("Warning: Trying to colourise image whose format is %d not GX_TF_IA8\n", tm->mBits.textureFormat);
-	}
-
-	texmap = tm;
-	original = (u16*)tm->image;
-	mine = (u16*)EGG__Heap__alloc(tm->width * tm->height * 4, 0x20, mHeap::gameHeaps[2]);
-	tm->image = mine;
-	tm->mBits.textureFormat = GX_TF_RGBA8;
-}
-
-void dTexMapColouriser_c::applyAlso(nw4r::lyt::TexMap *tm) {
-	if (!texmap) {
-		setTexMap(tm);
-	} else {
-		tm->image = mine;
-		tm->mBits.textureFormat = GX_TF_RGBA8;
-	}
-}
-
-inline static float hslValue(float n1, float n2, float hue) {
-	if (hue > 6.0f)
-		hue -= 6.0f;
-	else if (hue < 0.0f)
-		hue += 6.0f;
-
-	if (hue < 1.0f)
-		return n1 + (n2 - n1) * hue;
-	else if (hue < 3.0f)
-		return n2;
-	else if (hue < 4.0f)
-		return n1 + (n2 - n1) * (4.0f - hue);
-	else
-		return n1;
-}
-
-void dTexMapColouriser_c::colourise(int h, int s, int l) {
-	if (!mine)
-		return;
-
-	int width = texmap->width, height = texmap->height;
-	int texelW = width / 4, texelH = height / 4;
-
-	u16 *source = original, *dest = mine;
-
-	float hueParam = h / 360.0f;
-	float satParam = s / 100.0f;
-	float lumParam = l / 100.0f;
-
-	for (int texelY = 0; texelY < texelH; texelY++) {
-		for (int texelX = 0; texelX < texelW; texelX++) {
-			for (int y = 0; y < 4; y++) {
-				for (int x = 0; x < 4; x++) {
-					u8 intensity = *source & 0xFF;
-					u8 alpha = *source >> 8;
-
-					u8 r, g, b;
-
-					// This is a hack
-					if (alpha < 250) {
-						r = g = b = intensity;
-					} else {
-						// converting from GIMP's colourise code...
-						// h and s are always the same
-						// l is the only thing we need to touch:
-						// we get the luminance from the source pixel
-						// (which, conveniently, is the intensity)
-						// manipulate it using the passed l and then
-						// convert the whole thing to RGB
-
-						float lum = intensity / 255.0f;
-
-						// manipulate it
-						if (l > 0) {
-							lum = lum * (1.0f - lumParam);
-							lum += (1.0f - (1.0f - lumParam));
-						} else if (l < 0) {
-							lum = lum * (lumParam + 1.0f);
-						}
-
-						// make it RGB
-
-						if (s == 0) {
-							r = g = b = lum*255.0f;
-						} else {
-							float m1, m2;
-							if (lum <= 0.5f)
-								m2 = lum * (1.0f + satParam);
-							else
-								m2 = lum + satParam - lum * satParam;
-
-							m1 = 2.0f * lum - m2;
-
-							r = hslValue(m1, m2, hueParam * 6.0f + 2.0) * 255.0f;
-							g = hslValue(m1, m2, hueParam * 6.0f) * 255.0f;
-							b = hslValue(m1, m2, hueParam * 6.0f - 2.0) * 255.0f;
-						}
-					}
-
-					// now write it
-					dest[0] = (alpha<<8)|r;
-					dest[16] = (g<<8)|b;
-
-					source++;
-					dest++;
-				}
-			}
-
-			dest += 16;
-		}
-	}
-}
-
 
 dWMHud_c *dWMHud_c::instance = 0;
 
diff --git a/src/koopatlas/hud.h b/src/koopatlas/hud.h
index ee64133..32a09be 100644
--- a/src/koopatlas/hud.h
+++ b/src/koopatlas/hud.h
@@ -2,23 +2,7 @@
 #define __KOOPATLAS_HUD_H
 
 #include "koopatlas/core.h"
-
-// Colourises an IA8 texture
-class dTexMapColouriser_c {
-	public:
-		dTexMapColouriser_c();
-		~dTexMapColouriser_c();
-
-		void resetAndClear();
-		void setTexMap(nw4r::lyt::TexMap *tm);
-		void applyAlso(nw4r::lyt::TexMap *tm);
-		void colourise(int h, int s, int l);
-
-	private:
-		nw4r::lyt::TexMap *texmap;
-		u16 *original;
-		u16 *mine;
-};
+#include "texmapcolouriser.h"
 
 class dWMHud_c : public dBase_c {
 	public:
diff --git a/src/koopatlas/pathmanager.cpp b/src/koopatlas/pathmanager.cpp
index fa2a862..5d301df 100644
--- a/src/koopatlas/pathmanager.cpp
+++ b/src/koopatlas/pathmanager.cpp
@@ -657,10 +657,10 @@ void dWMPathManager_c::moveThroughPath() {
 			OSReport("Activating world change %d\n", to->worldID);
 			const dKPWorldDef_s *world = dScKoopatlas_c::instance->mapData.findWorldDef(to->worldID);
 			if (world) {
-				bool visiblyChange = false;
+				bool visiblyChange = true;
 				if (strncmp(save->newerWorldName, world->name, 32) == 0) {
 					OSReport("Already here, but setting BGM track\n");
-					visiblyChange = true;
+					visiblyChange = false;
 				}
 
 				OSReport("Found!\n");
diff --git a/src/koopatlas/shop.cpp b/src/koopatlas/shop.cpp
index 9da5fc0..b42c58a 100644
--- a/src/koopatlas/shop.cpp
+++ b/src/koopatlas/shop.cpp
@@ -15,13 +15,14 @@ void dWMShop_c::ShopModel_c::setupItem(float x, float y, ItemTypes type) {
 		{ "I_propeller", 	"g3d/I_propeller.brres", 		"I_propeller_model", 	"wait2" },
 		{ "I_kinoko_bundle","g3d/I_mini_kinoko.brres", 		"I_mini_kinoko", 		"wait2" },
 		{ "I_star", 		"g3d/I_star.brres", 			"I_star", 				"wait2" },
-		{ "I_hammer", 		"g3d/I_hammer.brres", 			"I_hammer", 			"wait2" },
+		{ "I_hammer", 		"g3d/I_fireflower.brres",		"I_fireflower",			"wait2" },
 		{ "I_kinoko_bundle","g3d/I_life_kinoko.brres", 		"I_life_kinoko", 		"wait2" },
 		{ "obj_coin", 		"g3d/obj_coin.brres", 			"obj_coin", 			"wait2" }
 	};
 
 	this->x = x;
 	this->y = y;
+	scaleFactor = 2.3f;
 
 	int id = (int)type;
 
@@ -29,8 +30,14 @@ void dWMShop_c::ShopModel_c::setupItem(float x, float y, ItemTypes type) {
 
 	res.data = getResource(Produce[id][0], Produce[id][1]);
 	nw4r::g3d::ResMdl mdlRes = res.GetResMdl(Produce[id][2]);
-	model.setup(mdlRes, &allocator, ANM_VTX, 1, 0);
-	SetupTextures_Item(&model, 1);
+	model.setup(mdlRes, &allocator, 0x224, 1, 0);
+
+	if (type == COINS) {
+		SetupTextures_MapObj(&model, 1);
+		this->y += 20.0f;
+		scaleFactor = 2.7f;
+	} else
+		SetupTextures_Item(&model, 1);
 
 	nw4r::g3d::ResAnmChr anmChr = res.GetResAnmChr(Produce[id][3]);
 	animation.setup(mdlRes, anmChr, &allocator, 0);
@@ -45,12 +52,14 @@ void dWMShop_c::ShopModel_c::setupLakitu(int id) {
 		"g3d/ghost.brres", "g3d/space.brres", "g3d/koopa.brres", "g3d/sewer.brres", "g3d/goldwood.brres" 
 	};
 
+	scaleFactor = 1.0f;
+
 	allocator.link(-1, GameHeaps[0], 0, 0x20);
 
 	res.data = getResource("lakitu", models[id]);
 	nw4r::g3d::ResMdl mdlRes = res.GetResMdl("lakitu");
-	model.setup(mdlRes, &allocator, ANM_VTX, 1, 0);
-	SetupTextures_Item(&model, 1);
+	model.setup(mdlRes, &allocator, 0x224, 1, 0);
+	SetupTextures_Enemy(&model, 1);
 
 	nw4r::g3d::ResAnmChr anmChr = res.GetResAnmChr("idle");
 	animation.setup(mdlRes, anmChr, &allocator, 0);
@@ -62,7 +71,7 @@ void dWMShop_c::ShopModel_c::setupLakitu(int id) {
 
 void dWMShop_c::ShopModel_c::playAnim(const char *name, float rate) {
 	nw4r::g3d::ResAnmChr anmChr = res.GetResAnmChr(name);
-	animation.bind(&model, anmChr, 1);
+	animation.bind(&model, anmChr, 0);
 	model.bindAnim(&animation, 0.0f);
 	animation.setUpdateRate(rate);
 }
@@ -73,12 +82,12 @@ void dWMShop_c::ShopModel_c::execute() {
 
 void dWMShop_c::ShopModel_c::draw() {
 	mMtx mtx;
-	Vec pos = {250.0f, 170.0f, 3000.0f};
-	Vec scale = {1.0f, 1.0f, 1.0f};
-	mtx.translation(pos.x, pos.y, pos.z);
-
+	mtx.translation(x, y, 1000.0f);
 	model.setDrawMatrix(mtx);
+
+	Vec scale = {scaleFactor, scaleFactor, scaleFactor};
 	model.setScale(&scale);
+
 	model.calcWorld(false);
 	model.scheduleForDrawing();
 }
@@ -111,7 +120,6 @@ int dWMShop_c::onCreate() {
 
 		layout.build("shop.brlyt");
 
-		layout.layout.rootPane->trans.x = -112.0f;
 		if (IsWideScreen()) {
 			layout.layout.rootPane->scale.x = 0.735f;
 		} else {
@@ -154,6 +162,36 @@ int dWMShop_c::onCreate() {
 		};
 		layout.getTextBoxes(tbNames, &Title, 6);
 
+		// Warning: weird code coming up
+		const char *crap = "000102031\0" "2\0";
+		char name[12];
+		for (int i = 0; i < 6; i++) {
+			strcpy(name, "BtnLeftXX");
+			name[7] = crap[i*2];
+			name[8] = crap[i*2+1];
+			BtnLeft[i] = layout.findPictureByName(name);
+
+			strcpy(name, "BtnMidXX");
+			name[6] = crap[i*2];
+			name[7] = crap[i*2+1];
+			BtnMid[i] = layout.findPictureByName(name);
+
+			strcpy(name, "BtnRightXX");
+			name[8] = crap[i*2];
+			name[9] = crap[i*2+1];
+			BtnRight[i] = layout.findPictureByName(name);
+		}
+
+		leftCol.setTexMap(BtnLeft[0]->material->texMaps);
+		midCol.setTexMap(BtnMid[0]->material->texMaps);
+		rightCol.setTexMap(BtnRight[0]->material->texMaps);
+
+		for (int i = 1; i < 6; i++) {
+			leftCol.applyAlso(BtnLeft[i]->material->texMaps);
+			midCol.applyAlso(BtnMid[i]->material->texMaps);
+			rightCol.applyAlso(BtnRight[i]->material->texMaps);
+		}
+
 		layoutLoaded = true;
 	}
 
@@ -226,6 +264,7 @@ void dWMShop_c::beginState_ShowWait() {
 	layout.enableNonLoopAnim(SHOW_ALL);
 	visible = true;
 
+	loadInfo();
 	loadModels();
 }
 void dWMShop_c::executeState_ShowWait() {
@@ -301,12 +340,14 @@ void dWMShop_c::endState_Wait() { }
 void dWMShop_c::beginState_HideWait() {
 	MapSoundPlayer(SoundRelatedClass, SE_SYS_DIALOGUE_OUT_AUTO, 1);
 	layout.enableNonLoopAnim(HIDE_ALL);
+	layout.enableNonLoopAnim(DEACTIVATE_BUTTON+selected);
 }
 void dWMShop_c::executeState_HideWait() {
 	if (!layout.isAnimOn(HIDE_ALL))
 		state.setState(&StateID_Hidden);
 }
 void dWMShop_c::endState_HideWait() {
+	deleteModels();
 	visible = false;
 }
 
@@ -384,10 +425,29 @@ const dWMShop_c::ItemTypes dWMShop_c::Inventory[10][12] = {
 void dWMShop_c::loadModels() {
 	lakituModel = new ShopModel_c;
 	lakituModel->setupLakitu(shopKind);
+	lakituModel->x = 240.0f;
+	lakituModel->y = 220.0f;
+
+	static const float itemPos[ITEM_COUNT][2] = {
+		{357.0f, 276.0f},
+		{450.0f, 276.0f},
+		{543.0f, 276.0f},
+		{636.0f, 276.0f},
+
+		{380.0f, 190.0f},
+		{462.0f, 190.0f},
+		{544.0f, 190.0f},
+
+		{363.0f, 104.0f},
+		{413.0f, 104.0f},
+		{463.0f, 104.0f},
+		{513.0f, 104.0f},
+		{563.0f, 104.0f},
+	};
 
 	itemModels = new ShopModel_c[ITEM_COUNT];
 	for (int i = 0; i < ITEM_COUNT; i++)
-		itemModels[i].setupItem(0.0f, 0.0f, Inventory[shopKind][i]);
+		itemModels[i].setupItem(itemPos[i][0], itemPos[i][1], Inventory[shopKind][i]);
 }
 void dWMShop_c::deleteModels() {
 	if (lakituModel)
@@ -400,6 +460,39 @@ void dWMShop_c::deleteModels() {
 }
 
 
+void dWMShop_c::loadInfo() {
+	SaveBlock *save = GetSaveFile()->GetBlock(-1);
+
+	leftCol.colourise(save->hudHintH, save->hudHintS, save->hudHintL);
+	midCol.colourise(save->hudHintH, save->hudHintS, save->hudHintL);
+	rightCol.colourise(save->hudHintH, save->hudHintS, save->hudHintL);
+
+	// find out the shop name
+	dLevelInfo_c::entry_s *shopNameEntry =
+		dLevelInfo_c::s_info.searchBySlot(shopKind, 98);
+
+	wchar_t shopName[100];
+	// TODO: refactor this a bit
+	const char *sourceName = dLevelInfo_c::s_info.getNameForLevel(shopNameEntry);
+	int charCount = 0;
+	
+	while (*sourceName != 0 && charCount < 99) {
+		shopName[charCount] = *sourceName;
+		sourceName++;
+		charCount++;
+	}
+	shopName[charCount] = 0;
+
+	Title->SetString(shopName);
+	TitleShadow->SetString(shopName);
+
+	// load the coin count
+	int scCount = getStarCoinCount();
+	WriteNumberToTextBox(&scCount, CoinCount, false);
+	WriteNumberToTextBox(&scCount, CoinCountShadow, false);
+}
+
+
 void dWMShop_c::buyItem(int item) {
 	static int itemDefs[6][3] = {
 		// Cost, Start Index, Count
diff --git a/src/koopatlas/shop.h b/src/koopatlas/shop.h
index 719a087..304154a 100644
--- a/src/koopatlas/shop.h
+++ b/src/koopatlas/shop.h
@@ -2,8 +2,9 @@
 #define __KOOPATLAS_SHOP_H
 
 #include "koopatlas/core.h"
+#include "texmapcolouriser.h"
 
-class dWMShop_c : public dBase_c {
+class dWMShop_c : public dActor_c {
 	public:
 		static dWMShop_c *build();
 		static dWMShop_c *instance;
@@ -56,6 +57,11 @@ class dWMShop_c : public dBase_c {
 			*CoinCount, *CoinCountShadow,
 			*BackText, *BuyText;
 
+		nw4r::lyt::Picture
+			*BtnLeft[6], *BtnMid[6], *BtnRight[6];
+
+		dTexMapColouriser_c leftCol, midCol, rightCol;
+
 		class ShopModel_c {
 			public:
 				mHeapAllocator_c allocator;
@@ -64,7 +70,7 @@ class dWMShop_c : public dBase_c {
 				m3d::mdl_c model;
 				m3d::anmChr_c animation;
 
-				float x, y;
+				float x, y, scaleFactor;
 
 				void setupItem(float x, float y, ItemTypes type);
 				void setupLakitu(int id);
@@ -78,6 +84,7 @@ class dWMShop_c : public dBase_c {
 
 		void show(int shopNumber);
 
+		void loadInfo();
 		void loadModels();
 		void deleteModels();
 
diff --git a/src/texmapcolouriser.cpp b/src/texmapcolouriser.cpp
new file mode 100644
index 0000000..1aa2d7c
--- /dev/null
+++ b/src/texmapcolouriser.cpp
@@ -0,0 +1,142 @@
+#include "texmapcolouriser.h"
+
+dTexMapColouriser_c::dTexMapColouriser_c() {
+	texmap = 0;
+	original = 0;
+	mine = 0;
+}
+
+void *EGG__Heap__alloc(unsigned long size, int unk, void *heap);
+void EGG__Heap__free(void *ptr, void *heap);
+
+dTexMapColouriser_c::~dTexMapColouriser_c() {
+	resetAndClear();
+}
+
+void dTexMapColouriser_c::resetAndClear() {
+	texmap = 0;
+	if (mine) {
+		EGG__Heap__free(mine, 0);
+		mine = 0;
+	}
+}
+
+void dTexMapColouriser_c::setTexMap(nw4r::lyt::TexMap *tm) {
+	OSReport("Colourising TexMap: %p (w:%d h:%d)\n", tm, tm->width, tm->height);
+	if (texmap)
+		resetAndClear();
+
+	if (tm->mBits.textureFormat != GX_TF_IA8) {
+		OSReport("Warning: Trying to colourise image whose format is %d not GX_TF_IA8\n", tm->mBits.textureFormat);
+	}
+
+	texmap = tm;
+	original = (u16*)tm->image;
+	mine = (u16*)EGG__Heap__alloc(tm->width * tm->height * 4, 0x20, mHeap::gameHeaps[2]);
+	tm->image = mine;
+	tm->mBits.textureFormat = GX_TF_RGBA8;
+}
+
+void dTexMapColouriser_c::applyAlso(nw4r::lyt::TexMap *tm) {
+	if (!texmap) {
+		setTexMap(tm);
+	} else {
+		tm->image = mine;
+		tm->mBits.textureFormat = GX_TF_RGBA8;
+	}
+}
+
+inline static float hslValue(float n1, float n2, float hue) {
+	if (hue > 6.0f)
+		hue -= 6.0f;
+	else if (hue < 0.0f)
+		hue += 6.0f;
+
+	if (hue < 1.0f)
+		return n1 + (n2 - n1) * hue;
+	else if (hue < 3.0f)
+		return n2;
+	else if (hue < 4.0f)
+		return n1 + (n2 - n1) * (4.0f - hue);
+	else
+		return n1;
+}
+
+void dTexMapColouriser_c::colourise(int h, int s, int l) {
+	if (!mine)
+		return;
+
+	int width = texmap->width, height = texmap->height;
+	int texelW = width / 4, texelH = height / 4;
+
+	u16 *source = original, *dest = mine;
+
+	float hueParam = h / 360.0f;
+	float satParam = s / 100.0f;
+	float lumParam = l / 100.0f;
+
+	for (int texelY = 0; texelY < texelH; texelY++) {
+		for (int texelX = 0; texelX < texelW; texelX++) {
+			for (int y = 0; y < 4; y++) {
+				for (int x = 0; x < 4; x++) {
+					u8 intensity = *source & 0xFF;
+					u8 alpha = *source >> 8;
+
+					u8 r, g, b;
+
+					// This is a hack
+					if (alpha < 250) {
+						r = g = b = intensity;
+					} else {
+						// converting from GIMP's colourise code...
+						// h and s are always the same
+						// l is the only thing we need to touch:
+						// we get the luminance from the source pixel
+						// (which, conveniently, is the intensity)
+						// manipulate it using the passed l and then
+						// convert the whole thing to RGB
+
+						float lum = intensity / 255.0f;
+
+						// manipulate it
+						if (l > 0) {
+							lum = lum * (1.0f - lumParam);
+							lum += (1.0f - (1.0f - lumParam));
+						} else if (l < 0) {
+							lum = lum * (lumParam + 1.0f);
+						}
+
+						// make it RGB
+
+						if (s == 0) {
+							r = g = b = lum*255.0f;
+						} else {
+							float m1, m2;
+							if (lum <= 0.5f)
+								m2 = lum * (1.0f + satParam);
+							else
+								m2 = lum + satParam - lum * satParam;
+
+							m1 = 2.0f * lum - m2;
+
+							r = hslValue(m1, m2, hueParam * 6.0f + 2.0) * 255.0f;
+							g = hslValue(m1, m2, hueParam * 6.0f) * 255.0f;
+							b = hslValue(m1, m2, hueParam * 6.0f - 2.0) * 255.0f;
+						}
+					}
+
+					// now write it
+					dest[0] = (alpha<<8)|r;
+					dest[16] = (g<<8)|b;
+
+					source++;
+					dest++;
+				}
+			}
+
+			dest += 16;
+		}
+	}
+}
+
+
diff --git a/src/texmapcolouriser.h b/src/texmapcolouriser.h
new file mode 100644
index 0000000..22d5d25
--- /dev/null
+++ b/src/texmapcolouriser.h
@@ -0,0 +1,22 @@
+#ifndef TEXMAPCOLOURISER_H
+#define TEXMAPCOLOURISER_H 
+#include <game.h>
+
+// Colourises an IA8 texture
+class dTexMapColouriser_c {
+	public:
+		dTexMapColouriser_c();
+		~dTexMapColouriser_c();
+
+		void resetAndClear();
+		void setTexMap(nw4r::lyt::TexMap *tm);
+		void applyAlso(nw4r::lyt::TexMap *tm);
+		void colourise(int h, int s, int l);
+
+	private:
+		nw4r::lyt::TexMap *texmap;
+		u16 *original;
+		u16 *mine;
+};
+
+#endif /* TEXMAPCOLOURISER_H */