lovr.graphics.box; Better non-uniform scale;

src/api/graphics.c

@@ -463,7 +463,7 @@ int l_lovrGraphicsScale(lua_State* L) {
 
 int l_lovrGraphicsTransform(lua_State* L) {
   float transform[16];
-  luax_readtransform(L, 1, transform);
+  luax_readtransform(L, 1, transform, 0);
   lovrGraphicsMatrixTransform(transform);
   return 0;
 }
@@ -526,7 +526,7 @@ int l_lovrGraphicsPlane(lua_State* L) {
   return 0;
 }
 
-int l_lovrGraphicsCube(lua_State* L) {
+static int luax_rectangularprism(lua_State* L, int uniformScale) {
   Texture* texture = NULL;
   DrawMode drawMode;
   if (lua_isstring(L, 1)) {
@@ -536,15 +536,23 @@ int l_lovrGraphicsCube(lua_State* L) {
     texture = luax_checktype(L, 1, Texture);
   }
   float transform[16];
-  luax_readtransform(L, 2, transform);
-  lovrGraphicsCube(drawMode, texture, transform);
+  luax_readtransform(L, 2, transform, uniformScale);
+  lovrGraphicsBox(drawMode, texture, transform);
   return 0;
 }
 
+int l_lovrGraphicsCube(lua_State* L) {
+  return luax_rectangularprism(L, 1);
+}
+
+int l_lovrGraphicsBox(lua_State* L) {
+  return luax_rectangularprism(L, 0);
+}
+
 int l_lovrGraphicsPrint(lua_State* L) {
   const char* str = luaL_checkstring(L, 1);
   float transform[16];
-  int index = luax_readtransform(L, 2, transform);
+  int index = luax_readtransform(L, 2, transform, 1);
   float wrap = luaL_optnumber(L, index++, 0);
   HorizontalAlign halign = *(HorizontalAlign*) luax_optenum(L, index++, "center", &HorizontalAligns, "alignment");
   VerticalAlign valign = *(VerticalAlign*) luax_optenum(L, index++, "middle", &VerticalAligns, "alignment");
@@ -809,6 +817,7 @@ const luaL_Reg lovrGraphics[] = {
   { "triangle", l_lovrGraphicsTriangle },
   { "plane", l_lovrGraphicsPlane },
   { "cube", l_lovrGraphicsCube },
+  { "box", l_lovrGraphicsBox },
   { "print", l_lovrGraphicsPrint },
   { "cylinder", l_lovrGraphicsCylinder },
   { "getWidth", l_lovrGraphicsGetWidth },

src/api/lovr.h

@@ -67,7 +67,7 @@ extern map_int_t VerticalAligns;
 extern map_int_t WrapModes;
 
 void luax_checkmeshformat(lua_State* L, int index, MeshFormat* format);
-int luax_readtransform(lua_State* L, int index, mat4 transform);
+int luax_readtransform(lua_State* L, int index, mat4 transform, int uniformScale);
 Blob* luax_readblob(lua_State* L, int index, const char* debug);
 int luax_pushshape(lua_State* L, Shape* shape);
 int luax_pushjoint(lua_State* L, Joint* joint);

src/api/math.c

@@ -11,7 +11,7 @@ int l_lovrMathInit(lua_State* L) {
 
 int l_lovrMathNewTransform(lua_State* L) {
   float matrix[16];
-  luax_readtransform(L, 1, matrix);
+  luax_readtransform(L, 1, matrix, 0);
   Transform* transform = lovrTransformCreate(matrix);
   luax_pushtype(L, Transform, transform);
   lovrRelease(&transform->ref);

src/api/types/mesh.c

@@ -30,7 +30,7 @@ void luax_checkmeshformat(lua_State* L, int index, MeshFormat* format) {
 int l_lovrMeshDraw(lua_State* L) {
   Mesh* mesh = luax_checktype(L, 1, Mesh);
   float transform[16];
-  luax_readtransform(L, 2, transform);
+  luax_readtransform(L, 2, transform, 1);
   lovrMeshDraw(mesh, transform);
   return 0;
 }

src/api/types/model.c

@@ -4,7 +4,7 @@
 int l_lovrModelDraw(lua_State* L) {
   Model* model = luax_checktype(L, 1, Model);
   float transform[16];
-  luax_readtransform(L, 2, transform);
+  luax_readtransform(L, 2, transform, 1);
   lovrModelDraw(model, transform);
   return 0;
 }

src/api/types/transform.c

@@ -2,17 +2,24 @@
 #include "math/mat4.h"
 #include "math/transform.h"
 
-int luax_readtransform(lua_State* L, int index, mat4 m) {
+int luax_readtransform(lua_State* L, int index, mat4 m, int uniformScale) {
   if (lua_isnumber(L, index)) {
     float x = luaL_optnumber(L, index++, 0);
     float y = luaL_optnumber(L, index++, 0);
     float z = luaL_optnumber(L, index++, 0);
-    float s = luaL_optnumber(L, index++, 1);
+    float sx, sy, sz;
+    if (uniformScale) {
+      sx = sy = sz = luaL_optnumber(L, index++, 1);
+    } else {
+      sx = luaL_optnumber(L, index++, 1);
+      sy = luaL_optnumber(L, index++, 1);
+      sz = luaL_optnumber(L, index++, 1);
+    }
     float angle = luaL_optnumber(L, index++, 0);
     float ax = luaL_optnumber(L, index++, 0);
     float ay = luaL_optnumber(L, index++, 1);
     float az = luaL_optnumber(L, index++, 0);
-    mat4_setTransform(m, x, y, z, s, angle, ax, ay, az);
+    mat4_setTransform(m, x, y, z, sx, sy, sz, angle, ax, ay, az);
     return index;
   } else if (lua_isnoneornil(L, index)) {
     mat4_identity(m);
@@ -88,7 +95,7 @@ int l_lovrTransformScale(lua_State* L) {
 int l_lovrTransformSetTransformation(lua_State* L) {
   Transform* transform = luax_checktype(L, 1, Transform);
   lovrTransformOrigin(transform); // Dirty the Transform
-  luax_readtransform(L, 2, transform->matrix);
+  luax_readtransform(L, 2, transform->matrix, 0);
   lua_pushvalue(L, 1);
   return 1;
 }

src/graphics/graphics.c

@@ -620,7 +620,7 @@ void lovrGraphicsPlane(DrawMode mode, Texture* texture, float x, float y, float
   float theta = acos(nz);
 
   float transform[16];
-  mat4_setTransform(transform, x, y, z, size, theta, cx, cy, cz);
+  mat4_setTransform(transform, x, y, z, size, size, size, theta, cx, cy, cz);
 
   lovrGraphicsPush();
   lovrGraphicsMatrixTransform(transform);
@@ -677,7 +677,7 @@ void lovrGraphicsPlaneFullscreen(Texture* texture) {
   }
 }
 
-void lovrGraphicsCube(DrawMode mode, Texture* texture, mat4 transform) {
+void lovrGraphicsBox(DrawMode mode, Texture* texture, mat4 transform) {
   lovrGraphicsPush();
   lovrGraphicsMatrixTransform(transform);
 

src/graphics/graphics.h

@@ -173,7 +173,7 @@ void lovrGraphicsLine(float* points, int count);
 void lovrGraphicsTriangle(DrawMode mode, float* points);
 void lovrGraphicsPlane(DrawMode mode, Texture* texture, float x, float y, float z, float size, float nx, float ny, float nz);
 void lovrGraphicsPlaneFullscreen(Texture* texture);
-void lovrGraphicsCube(DrawMode mode, Texture* texture, mat4 transform);
+void lovrGraphicsBox(DrawMode mode, Texture* texture, mat4 transform);
 void lovrGraphicsCylinder(float x1, float y1, float z1, float x2, float y2, float z2, float r1, float r2, int capped, int segments);
 void lovrGraphicsSkybox(Skybox* skybox, float angle, float ax, float ay, float az);
 void lovrGraphicsPrint(const char* str, mat4 transform, float wrap,  HorizontalAlign halign, VerticalAlign valign);

src/math/mat4.c

@@ -208,10 +208,10 @@ mat4 mat4_scale(mat4 m, float x, float y, float z) {
   return m;
 }
 
-mat4 mat4_setTransform(mat4 m, float x, float y, float z, float s, float angle, float ax, float ay, float az) {
+mat4 mat4_setTransform(mat4 m, float x, float y, float z, float sx, float sy, float sz, float angle, float ax, float ay, float az) {
   mat4_identity(m);
   mat4_translate(m, x, y, z);
-  mat4_scale(m, s, s, s);
+  mat4_scale(m, sx, sy, sz);
   return mat4_rotate(m, angle, ax, ay, az);
 }
 

src/math/mat4.h

@@ -14,7 +14,7 @@ mat4 mat4_translate(mat4 m, float x, float y, float z);
 mat4 mat4_rotate(mat4 m, float angle, float x, float y, float z);
 mat4 mat4_rotateQuat(mat4 m, quat q);
 mat4 mat4_scale(mat4 m, float x, float y, float z);
-mat4 mat4_setTransform(mat4 m, float x, float y, float z, float s, float angle, float ax, float ay, float az);
+mat4 mat4_setTransform(mat4 m, float x, float y, float z, float sx, float sy, float sz, float angle, float ax, float ay, float az);
 mat4 mat4_orthographic(mat4 m, float left, float right, float top, float bottom, float near, float far);
 mat4 mat4_perspective(mat4 m, float near, float far, float fov, float aspect);
 void mat4_transform(mat4 m, vec3 v);