Bullet spawning and rendering.

Faceball2030/assets/enemies/bullet.mtl

@@ -0,0 +1,11 @@
+# Exported from Wings 3D 2.2.9
+newmtl sphere1_auv
+Ns 19.999999999999996
+d 1.0
+illum 2
+Kd 1.0 1.0 1.0
+Ka 0.0 0.0 0.0
+Ks 0.19 0.19 0.19
+Ke 0.0 0.0 0.0
+map_Kd sphere1_auv.png
+

Faceball2030/main.cpp

@@ -75,7 +75,7 @@ void FaceBall::LoadLevel(int level)
 			}
 		}
 	}
-	objects.push_back({ mapMesh });
+	objects.push_back({ mapMesh,{0,0},0,0 });
 }
 
 bool FaceBall::CheckCollision(vec3d movementVector,vf2d pos,float radius){
@@ -85,8 +85,8 @@ bool FaceBall::CheckCollision(vec3d movementVector,vf2d pos,float radius){
 		for (int x = -1; x <= 1; x++) {
 			int offsetX = (int)pos.x + x;
 			int offsetY = (int)pos.y + y;
-			if (offsetX >= 0 && offsetX < MAP_SIZE.x && offsetY >= 0 && offsetY < MAP_SIZE.y) {
+			if (offsetX >= 0 && offsetX < game->MAP_SIZE.x && offsetY >= 0 && offsetY < game->MAP_SIZE.y) {
-				MapSquare tile = map[offsetY][offsetX];
+				MapSquare tile = game->map[offsetY][offsetX];
 				if (tile.wallN != NULL) {
 					utils::geom2d::line<float>wall{ {(float)offsetX,(float)offsetY},{(float)offsetX+1,(float)offsetY} };
 					if (((int)(newPos.pos.x-radius)==offsetX||
@@ -456,38 +456,13 @@ int FaceBall::Triangle_ClipAgainstPlane(vec3d plane_p, vec3d plane_n, Triangle&
 	}
 }
 
-void FaceBall::RenderWorld() {
+void FaceBall::RenderMesh(mat4x4&matView,std::vector<Triangle>&vecTrianglesToRaster, Object&o) {
-	// Set up rotation matrices
+	for (auto& tri : o.mesh.tris) {
-	mat4x4 matRotZ, matRotX, matWorld;
-
-	matRotZ = Matrix_MakeRotationZ(fTheta * 0.5f);
-	matRotX = Matrix_MakeRotationX(fTheta);
-
-	//matTrans = Matrix_MakeTranslation(0.0f, 0.0f, 0.0f);
-	matWorld = Matrix_MakeIdentity();
-	matWorld = Matrix_MultiplyMatrix(matRotZ, matRotX);
-	//matWorld = Matrix_MultiplyMatrix(matWorld, matTrans);
-
-	vec3d vUp = { 0,1,0 };
-	vec3d vTarget = { 0,sinf(pitch),cosf(pitch) };
-	mat4x4 matCameraRot = Matrix_MakeRotationY(fYaw);
-	vLookDir = Matrix_MultiplyVector(matCameraRot, vTarget);
-	vTarget = Vector_Add(freeRoam?freeRoamCamera:player.GetPos(), vLookDir);
-	mat4x4 matCamera = Matrix_PointAt(freeRoam?freeRoamCamera:player.GetPos(), vTarget, vUp);
-	mat4x4 matView = Matrix_QuickInverse(matCamera);
-
-	std::vector<Triangle>vecTrianglesToRaster;
-
-	// Draw Triangles
-	for (auto& obj : objects) {
-		for (auto& tri : obj.mesh.tris) {
 		Triangle triProjected, triTransformed, triViewed;
-			//mat4x4 matTrans = Matrix_MakeTranslation(-mesh.size.x/2, 0, -mesh.size.x/2);
 		mat4x4 localMat = Matrix_MakeIdentity();
-			//localMat = Matrix_MultiplyMatrix(localMat, matTrans);
+		mat4x4 rotMat = Matrix_MakeRotationY(o.rot);
-			mat4x4 rotMat = Matrix_MakeRotationY(obj.rot);
 		localMat = Matrix_MultiplyMatrix(localMat, rotMat);
-			mat4x4 matTrans = Matrix_MakeTranslation(obj.pos.x, 0, obj.pos.y);
+		mat4x4 matTrans = Matrix_MakeTranslation(o.pos.x-o.radius, o.pos.y-o.radius, o.pos.z - o.radius);
 		localMat = Matrix_MultiplyMatrix(localMat, matTrans);
 
 		triTransformed.p[0] = Matrix_MultiplyVector(localMat, tri.p[0]);
@@ -573,7 +548,7 @@ void FaceBall::RenderWorld() {
 				triProjected.p[1].y *= 0.5f * (float)ScreenHeight();
 				triProjected.p[2].x *= 0.5f * (float)ScreenWidth();
 				triProjected.p[2].y *= 0.5f * (float)ScreenHeight();
-					triProjected.tex = obj.mesh.texture;
+				triProjected.tex = o.mesh.texture;
 
 				vecTrianglesToRaster.push_back(triProjected);
 			}
@@ -581,6 +556,37 @@ void FaceBall::RenderWorld() {
 	}
 }
 
+void FaceBall::RenderWorld() {
+	// Set up rotation matrices
+	mat4x4 matRotZ, matRotX, matWorld;
+
+	matRotZ = Matrix_MakeRotationZ(fTheta * 0.5f);
+	matRotX = Matrix_MakeRotationX(fTheta);
+
+	//matTrans = Matrix_MakeTranslation(0.0f, 0.0f, 0.0f);
+	matWorld = Matrix_MakeIdentity();
+	matWorld = Matrix_MultiplyMatrix(matRotZ, matRotX);
+	//matWorld = Matrix_MultiplyMatrix(matWorld, matTrans);
+
+	vec3d vUp = { 0,1,0 };
+	vec3d vTarget = { 0,sinf(pitch),cosf(pitch) };
+	mat4x4 matCameraRot = Matrix_MakeRotationY(fYaw-PI/2);
+	vLookDir = Matrix_MultiplyVector(matCameraRot, vTarget);
+	vec3d playerCenter = { player.GetPos().x, player.GetPos().y, player.GetPos().z };
+	vTarget = Vector_Add(freeRoam ? freeRoamCamera : playerCenter, vLookDir);
+	mat4x4 matCamera = Matrix_PointAt(freeRoam?freeRoamCamera: playerCenter, vTarget, vUp);
+	mat4x4 matView = Matrix_QuickInverse(matCamera);
+
+	std::vector<Triangle>vecTrianglesToRaster;
+
+	// Draw Triangles
+	for (auto& obj : objects) {
+		RenderMesh(matView,vecTrianglesToRaster,obj);
+	}
+	for (auto& bullet : bullets) {
+		RenderMesh(matView, vecTrianglesToRaster, bullet);
+	}
+
 	//std::sort(vecTrianglesToRaster.begin(),vecTrianglesToRaster.end(),[](triangle&t1,triangle&t2){return (t1.p[0].z+t1.p[1].z+t1.p[2].z)/3.0f>(t2.p[0].z+t2.p[1].z+t2.p[2].z)/3.0f;});
 	ClearBuffer(BLACK, true);
 	int triRenderCount = 0;
@@ -668,6 +674,9 @@ void FaceBall::HandleKeys(float fElapsedTime) {
 	}
 	else {
 		pitch = 0;
+		if (GetMouse(0).bPressed) {
+			bullets.push_back({ bullet,{player.GetPos().x + player.GetRadius(),player.GetPos().y, player.GetPos().z + player.GetRadius()},fYaw,0.25f,{shotSpd * std::cosf(fYaw),shotSpd * std::sinf(fYaw)} });
+		}
 	}
 	if (GetKey(W).bHeld) {
 		if (freeRoam) {
@@ -748,10 +757,12 @@ bool FaceBall::OnUserCreate()
 	arrow = new Decal(new Sprite("assets/arrow.png"));
 	enemy_ShootMe_tex = new Decal(new Sprite("assets/enemies/ShootMe.png"));
 	YAZAWA = new Decal(new Sprite("assets/yazawa.png"));
+	bullet_tex = new Decal(new Sprite("assets/enemies/bullet.png"));
 
 	InitializeEnemyData();
 
 	Mesh testEnemy("assets/enemies/ShootMe.obj", enemy_ShootMe_tex);
+	bullet = { "assets/enemies/bullet.obj",bullet_tex };
 	mapMesh.texture = YAZAWA;
 
 	LoadLevel(1);
@@ -759,8 +770,28 @@ bool FaceBall::OnUserCreate()
 	return true;
 }
 
+bool Bullet::Update(float fElapsedTime) {
+	if (!FaceBall::CheckCollision({ spd.x,0,spd.y }, {pos.x,pos.z}, radius)) {
+		pos.x += spd.x*fElapsedTime;
+		pos.z += spd.y*fElapsedTime;
+	}
+	else {
+		return false;
+	}
+	return true;
+}
+
 bool FaceBall::OnUserUpdate(float fElapsedTime)
 {
+	for (std::vector<Bullet>::iterator it = bullets.begin(); it != bullets.end(); ++it) {
+		Bullet& b = *it;
+		if (!b.Update(fElapsedTime)) {
+			it=bullets.erase(it);
+			if (it == bullets.end()) {
+				break;
+			}
+		}
+	}
 	switch (mode) {
 		case GAME: {
 			HandleKeys(fElapsedTime);

Faceball2030/main.h

@@ -139,8 +139,14 @@ private:
 
 struct Object {
 	Mesh mesh;
-	vf2d pos = { 0,0 };
+	vec3d pos = { 0,0 };
 	float rot = 0;
+	float radius = 0.2f;
+};
+
+struct Bullet : Object{
+	vf2d spd = { 0,0 };
+	bool Update(float fElapsedTime);
 };
 
 struct EnemyData {
@@ -171,13 +177,14 @@ class FaceBall : public PixelGameEngine
 	EnemyData GetData(EnemyID id);
 	Decal* circle,*arrow,*YAZAWA;
 	private:
-	Mesh mapMesh;
+	Mesh mapMesh,enemy_ShootMe,bullet;
 
-	Decal* dot, * enemy_ShootMe_tex;
+	Decal* dot, * enemy_ShootMe_tex,*bullet_tex;
-	vi2d MAP_SIZE = { 10,10 };
+	vi2d MAP_SIZE;
 	std::vector<std::vector<MapSquare>>map;
 	std::map<EnemyID, EnemyData>enemyData;
 	std::vector<Object>objects;
+	std::vector<Bullet>bullets;
 	GAMEMODE mode=GAMEMODE::GAME;
 	Editor editor; 
 	int level=1;
@@ -195,6 +202,8 @@ class FaceBall : public PixelGameEngine
 	Player player = { {3.7,0.3,0.7}, {{0.5,0.5},0.2} };
 	vec3d freeRoamCamera = { 1,0.5,1 };
 
+	float shotSpd = 1.5f;
+
 	vec3d Matrix_MultiplyVector(mat4x4& m, vec3d& i);
 	mat4x4 Matrix_MakeIdentity();
 	mat4x4 Matrix_MakeRotationX(float fAngleRad);
@@ -223,5 +232,7 @@ class FaceBall : public PixelGameEngine
 	void OnTextEntryComplete(const std::string& sText) override;
 	void InitializeEnemyData();
 	void LoadLevel(int level);
-	bool CheckCollision(vec3d movementVector,vf2d pos,float radius);
+	void RenderMesh(mat4x4&matView, std::vector<Triangle>&vecTrianglesToRaster,Object&o);
+	public:
+	static bool CheckCollision(vec3d movementVector,vf2d pos,float radius);
 };