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-rw-r--r--honey/ecs-systems.lua236
-rw-r--r--honey/glm.lua712
2 files changed, 474 insertions, 474 deletions
diff --git a/honey/ecs-systems.lua b/honey/ecs-systems.lua
index 18f50a8..9995304 100644
--- a/honey/ecs-systems.lua
+++ b/honey/ecs-systems.lua
@@ -1,118 +1,118 @@
-local ecs = require 'honey.ecs'
-local gl = honey.gl
-local glfw = honey.glfw
-
-
-local module = {}
-setmetatable(module, {__index=_G})
-setfenv(1, module)
-
-
-
---===== transform cascading =====--
-
-transform = function(params)
- return {
- db = params.db,
- update = function(self, dt)
- local entities = self.db:queryComponent("transform")
-
- -- prepare transforms
- for id, transform in pairs(entities) do
- transform._visited = false
- end
-
- -- helper function
- local function recursiveTransform(transform)
- if transform._visited then
- return transform._matrix
- end
-
- if not transform.parent then
- transform._matrix = transform.matrix
- else
- local parentTransform = self.db:getComponent(transform.parent, "transform")
- local parentMatrix = recursiveTransform(parentTransform)
- transform._matrix = parentMatrix * transform.matrix
- end
- transform._visited = true
- return transform._matrix
- end
-
- -- compute transforms
- for id, transform in pairs(entities) do
- recursiveTransform(transform)
- end
- end,
- priority = 0,
- }
-end
-
-
-
---===== rendering =====--
-
-function renderCamera(params)
- return {
- camera = params.camera,
- db = params.db,
- priority = params.priority or 99,
- update = function(self, dt)
- local cameraParams = self.db:getComponent(self.camera, "camera")
- local cameraTransform = self.db:getComponent(self.camera, "transform")
- local view
- if cameraTransform then
- view = cameraTransform._matrix
- else
- view = Mat4():identity()
- end
-
- local entities = self.db:queryComponent("renderMesh")
- for entity, tbl in pairs(entities) do
- -- get shader
- local shader = honey.shader.loadShader(tbl.shader.vertex, tbl.shader.fragment)
- shader:use()
-
- -- bind textures
- local texOffset = 0
- for name, texTbl in pairs(tbl.textures or {}) do
- local texture = honey.image.loadImage(texTbl.filename, texTbl.params)
- gl.BindTexture(gl.TEXTURE_2D + texOffset, texture.texture)
- shader:setInt(name, texOffset)
- texOffset = texOffset + 1
- end
-
- -- configure default uniforms
- local query = self.db:getComponent(entity, "transform")
- local model = (query and query._matrix) or Mat4():identity()
- shader:configure{
- float={
- time=glfw.GetTime(),
- },
- matrix={
- view=view,
- projection=cameraParams.projection,
- model=model,
- },
- }
-
- -- draw mesh
- local mesh = honey.mesh.loadMesh(tbl.mesh.filename, tbl.mesh.index)
- mesh:drawElements()
-
- -- unbind textures
- for i=0,texOffset-1 do
- gl.BindTexture(gl.TEXTURE_2D + i, 0)
- end
- end
- end,
- }
-end
-
-
-
---===== update functions =====--
-
-
-
-return module
+local ecs = require 'honey.ecs'
+local gl = honey.gl
+local glfw = honey.glfw
+
+
+local module = {}
+setmetatable(module, {__index=_G})
+setfenv(1, module)
+
+
+
+--===== transform cascading =====--
+
+transform = function(params)
+ return {
+ db = params.db,
+ update = function(self, dt)
+ local entities = self.db:queryComponent("transform")
+
+ -- prepare transforms
+ for id, transform in pairs(entities) do
+ transform._visited = false
+ end
+
+ -- helper function
+ local function recursiveTransform(transform)
+ if transform._visited then
+ return transform._matrix
+ end
+
+ if not transform.parent then
+ transform._matrix = transform.matrix
+ else
+ local parentTransform = self.db:getComponent(transform.parent, "transform")
+ local parentMatrix = recursiveTransform(parentTransform)
+ transform._matrix = parentMatrix * transform.matrix
+ end
+ transform._visited = true
+ return transform._matrix
+ end
+
+ -- compute transforms
+ for id, transform in pairs(entities) do
+ recursiveTransform(transform)
+ end
+ end,
+ priority = 0,
+ }
+end
+
+
+
+--===== rendering =====--
+
+function renderCamera(params)
+ return {
+ camera = params.camera,
+ db = params.db,
+ priority = params.priority or 99,
+ update = function(self, dt)
+ local cameraParams = self.db:getComponent(self.camera, "camera")
+ local cameraTransform = self.db:getComponent(self.camera, "transform")
+ local view
+ if cameraTransform then
+ view = cameraTransform._matrix
+ else
+ view = Mat4():identity()
+ end
+
+ local entities = self.db:queryComponent("renderMesh")
+ for entity, tbl in pairs(entities) do
+ -- get shader
+ local shader = honey.shader.loadShader(tbl.shader.vertex, tbl.shader.fragment)
+ shader:use()
+
+ -- bind textures
+ local texOffset = 0
+ for name, texTbl in pairs(tbl.textures or {}) do
+ local texture = honey.image.loadImage(texTbl.filename, texTbl.params)
+ gl.BindTexture(gl.TEXTURE_2D + texOffset, texture.texture)
+ shader:setInt(name, texOffset)
+ texOffset = texOffset + 1
+ end
+
+ -- configure default uniforms
+ local query = self.db:getComponent(entity, "transform")
+ local model = (query and query._matrix) or Mat4():identity()
+ shader:configure{
+ float={
+ time=glfw.GetTime(),
+ },
+ matrix={
+ view=view,
+ projection=cameraParams.projection,
+ model=model,
+ },
+ }
+
+ -- draw mesh
+ local mesh = honey.mesh.loadMesh(tbl.mesh.filename, tbl.mesh.index)
+ mesh:drawElements()
+
+ -- unbind textures
+ for i=0,texOffset-1 do
+ gl.BindTexture(gl.TEXTURE_2D + i, 0)
+ end
+ end
+ end,
+ }
+end
+
+
+
+--===== update functions =====--
+
+
+
+return module
diff --git a/honey/glm.lua b/honey/glm.lua
index 20d4727..dada37f 100644
--- a/honey/glm.lua
+++ b/honey/glm.lua
@@ -1,356 +1,356 @@
-local glm = honey.glm
-
-local module = {}
-setmetatable(module, {__index=_G})
-setfenv(1, module)
-
-
-Vec3 = {}
-Mat4 = {}
-Quaternion = {}
-
-
---===== Vec3 =====--
-
-
-function Vec3.new(_, values)
- local self = {}
- self.data = glm.vec3_create()
- setmetatable(self, Vec3)
- if values then
- self[1] = values[1]
- self[2] = values[2]
- self[3] = values[3]
- end
- return self
-end
-setmetatable(Vec3, {__call=Vec3.new})
-
-
-function Vec3.__index(self, key)
- if type(key) == 'number' then
- return glm.vec3_get(self.data, key-1)
- else
- return Vec3[key]
- end
-end
-
-
-function Vec3.__newindex(self, key, value)
- glm.vec3_set(self.data, key-1, value)
-end
-
-
-function Vec3.__tostring(self)
- return string.format("Vec3[%.4f, %.4f, %.4f]", self[1], self[2], self[3])
-end
-
-
---===== arithmetic =====--
-
-local function swapIfNumber(self, other)
- if type(self) == "number" and type(other) == "table" then
- return other, self
- else
- return self, other
- end
-end
-
-
-function Vec3.__add(self, other)
- local self, other = swapIfNumber(self, other)
-
- local dest = Vec3()
- if type(other) == "number" then
- glm.vec3_adds(self.data, other, dest.data)
- elseif type(other) == "table" then
- glm.vec3_add(self.data, other.data, dest.data)
- else
- error(string.format("cannot add %s to Vec3", type(other)))
- end
- return dest
-end
-
-
-function Vec3.__sub(self, other)
- local dest = Vec3()
- if type(other) == "number" then
- glm.vec3_subs(self.data, other, dest.data)
- elseif type(other) == "table" then
- glm.vec3_sub(self.data, other.data, dest.data)
- else
- error(string.format("cannot subtract %s from Vec3", type(other)))
- end
- return dest
-end
-
-
-function Vec3.__mul(self, other)
- local self, other = swapIfNumber(self, other)
- local dest = Vec3()
- if type(other) == "number" then
- glm.vec3_scale(self.data, other, dest.data)
- elseif type(other) == "table" then
- glm.vec3_mul(self.data, other.data, dest.data)
- else
- error(string.format("cannot multiply %s and Vec3", type(other)))
- end
- return dest
-end
-
-
-function Vec3.__div(self, other)
- local dest = Vec3()
- if type(other) == "number" then
- glm.vec3_divs(self.data, other, dest.data)
- elseif type(other) == "table" then
- glm.vec3_div(self.data, other.data, dest.data)
- else
- error(string.format("cannot divide Vec3 by %s", type(other)))
- end
- return dest
-end
-
-
-
-
-function Vec3.copyTo(self, dest)
- glm.vec3_copy(self.data, dest.data)
-end
-
-
-function Vec3.zero(self)
- glm.vec3_zero(self.data)
-end
-
-
-function Vec3.zero(self)
- glm.vec3_zero(self.data)
-end
-function Vec3.one(self)
- glm.vec3_one(self.data)
-end
-
-
-function Vec3.dot(self, other)
- return glm.vec3_dot(self.data, other.data)
-end
-
-
-function Vec3.crossTo(self, other, dest)
- glm.vec3_cross(self.data, other.data, dest.data)
-end
-function Vec3.cross(self, other)
- local dest = Vec3()
- self:crossTo(other, dest)
- return dest
-end
-
-
-function Vec3.crossnTo(self, other, dest)
- glm.vec3_crossn(self.data, other.data, dest.data)
-end
-function Vec3.crossn(self, other)
- local dest = Vec3()
- self:crossTo(other, dest)
- return dest
-end
-
-
-function Vec3.norm2(self)
- return glm.vec3_norm2(self.data)
-end
-function Vec3.norm(self)
- return glm.vec3_norm(self.data)
-end
-
-
-function Vec3.normalize(self)
- glm.vec3_normalize(self.data)
-end
-function Vec3.normalizeTo(self, dest)
- glm.vec3_normalize_to(self.data, dest.data)
-end
-
-
-----------------------------------------
-
-local RowLookup = {}
-function RowLookup.new(_, row, data)
- local self = {
- row=row,
- data=data,
- }
- setmetatable(self, RowLookup)
- return self
-end
-setmetatable(RowLookup, {__call=RowLookup.new})
-function RowLookup.__index(self, col)
- return glm.mat4_get(self.data, col-1, self.row-1)
-end
-function RowLookup.__newindex(self, col, value)
- return glm.mat4_set(self.data, col-1, self.row-1, value)
-end
-
-
---===== Mat4 =====--
-
-
-function Mat4.new(_, self, values)
- local self = {}
- self.type = "mat4"
- self.data = glm.mat4_create()
- setmetatable(self, Mat4)
- if values then
- self[1][1] = values[1]
- self[1][2] = values[2]
- self[1][3] = values[3]
- self[1][4] = values[4]
-
- self[2][1] = values[5]
- self[2][2] = values[6]
- self[2][3] = values[7]
- self[2][4] = values[8]
-
- self[3][1] = values[9]
- self[3][2] = values[10]
- self[3][3] = values[11]
- self[3][4] = values[12]
-
- self[4][1] = values[13]
- self[4][2] = values[14]
- self[4][3] = values[15]
- self[4][4] = values[16]
- end
- return self
-end
-setmetatable(Mat4, {__call=Mat4.new})
-
-
-function Mat4.__index(self, key)
- if type(key) == "number" then
- return RowLookup(key, self.data)
- else
- return Mat4[key]
- end
-end
-
-
-function Mat4.__tostring(self)
- return string.format(
- "/ %0.4f, %0.4f, %0.4f, %0.4f \\\n" ..
- "| %0.4f, %0.4f, %0.4f, %0.4f |\n" ..
- "| %0.4f, %0.4f, %0.4f, %0.4f |\n" ..
- "\\ %0.4f, %0.4f, %0.4f, %0.4f /",
- self[1][1], self[1][2], self[1][3], self[1][4],
- self[2][1], self[2][2], self[2][3], self[2][4],
- self[3][1], self[3][2], self[3][3], self[3][4],
- self[4][1], self[4][2], self[4][3], self[4][4]
- )
-end
-
-
-function Mat4.__mul(self, other)
- if other.type == "mat4" then
- local dest = Mat4()
- glm.mat4_mul(self.data, other.data, dest.data)
- return dest
- elseif other.type == "vec4" then
- -- todo
- elseif other.type == "vec3" then
- local dest = Vec3()
- glm.mat4_mulv3(self.data, other.data, 1.0, dest.data)
- return dest
- else
- error(string.format("cannot multiply Mat4 by %s", type(other)))
- end
-end
-
-
-function Mat4.copyTo(self, dest)
- glm.mat4_copy(self.data, dest.data)
-end
-
-
-function Mat4.identity(self)
- glm.mat4_identity(self.data)
- return self
-end
-
-
-function Mat4.zero(self)
- glm.mat4_zero(self.data)
- return self
-end
-
-
-function Mat4.mul(self, other)
- glm.mat4_mul(self.data, other.data, self.data)
- return self
-end
-
-
-function Mat4.translate(self, vec)
- glm.translate(self.data, vec.data)
- return self
-end
-
-
-function Mat4.rotateX(self, angle)
- glm.rotate_x(self.data, angle, self.data)
- return self
-end
-function Mat4.rotateY(self, angle)
- glm.rotate_y(self.data, angle, self.data)
- return self
-end
-function Mat4.rotateZ(self, angle)
- glm.rotate_z(self.data, angle, self.data)
- return self
-end
-
-
-function Mat4.scale(self, vec)
- glm.scale(self.data, vec.data)
- return self
-end
-
-
-function Mat4.perspective(self, fovy, aspect, near, far)
- glm.perspective(fovy, aspect, near, far, self.data)
- return self
-end
-function Mat4.perspectiveResize(self, aspect)
- glm.perspective_resize(aspect, self.data)
- return self
-end
-
-
---===== Quaternion =====--
-
-
-Quaternion.__index = Quaternion
-
-
-function Quaternion.new(_, tbl)
- local tbl = tbl or { 0, 0, 0, 0 }
- local self = {}
- self.data = glm.quat_create()
- glm.quat_init(self.data, unpack(tbl))
- setmetatable(self, Quaternion)
- return self
-end
-setmetatable(Quaternion, {__call=Quaternion.new})
-
-
-function Quaternion.toMat4(self)
- local m = Mat4()
- glm.quat_mat4(self.data, m.data)
- return m
-end
-
-
----------------------------
-
-
-return module
+local glm = honey.glm
+
+local module = {}
+setmetatable(module, {__index=_G})
+setfenv(1, module)
+
+
+Vec3 = {}
+Mat4 = {}
+Quaternion = {}
+
+
+--===== Vec3 =====--
+
+
+function Vec3.new(_, values)
+ local self = {}
+ self.data = glm.vec3_create()
+ setmetatable(self, Vec3)
+ if values then
+ self[1] = values[1]
+ self[2] = values[2]
+ self[3] = values[3]
+ end
+ return self
+end
+setmetatable(Vec3, {__call=Vec3.new})
+
+
+function Vec3.__index(self, key)
+ if type(key) == 'number' then
+ return glm.vec3_get(self.data, key-1)
+ else
+ return Vec3[key]
+ end
+end
+
+
+function Vec3.__newindex(self, key, value)
+ glm.vec3_set(self.data, key-1, value)
+end
+
+
+function Vec3.__tostring(self)
+ return string.format("Vec3[%.4f, %.4f, %.4f]", self[1], self[2], self[3])
+end
+
+
+--===== arithmetic =====--
+
+local function swapIfNumber(self, other)
+ if type(self) == "number" and type(other) == "table" then
+ return other, self
+ else
+ return self, other
+ end
+end
+
+
+function Vec3.__add(self, other)
+ local self, other = swapIfNumber(self, other)
+
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_adds(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_add(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot add %s to Vec3", type(other)))
+ end
+ return dest
+end
+
+
+function Vec3.__sub(self, other)
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_subs(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_sub(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot subtract %s from Vec3", type(other)))
+ end
+ return dest
+end
+
+
+function Vec3.__mul(self, other)
+ local self, other = swapIfNumber(self, other)
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_scale(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_mul(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot multiply %s and Vec3", type(other)))
+ end
+ return dest
+end
+
+
+function Vec3.__div(self, other)
+ local dest = Vec3()
+ if type(other) == "number" then
+ glm.vec3_divs(self.data, other, dest.data)
+ elseif type(other) == "table" then
+ glm.vec3_div(self.data, other.data, dest.data)
+ else
+ error(string.format("cannot divide Vec3 by %s", type(other)))
+ end
+ return dest
+end
+
+
+
+
+function Vec3.copyTo(self, dest)
+ glm.vec3_copy(self.data, dest.data)
+end
+
+
+function Vec3.zero(self)
+ glm.vec3_zero(self.data)
+end
+
+
+function Vec3.zero(self)
+ glm.vec3_zero(self.data)
+end
+function Vec3.one(self)
+ glm.vec3_one(self.data)
+end
+
+
+function Vec3.dot(self, other)
+ return glm.vec3_dot(self.data, other.data)
+end
+
+
+function Vec3.crossTo(self, other, dest)
+ glm.vec3_cross(self.data, other.data, dest.data)
+end
+function Vec3.cross(self, other)
+ local dest = Vec3()
+ self:crossTo(other, dest)
+ return dest
+end
+
+
+function Vec3.crossnTo(self, other, dest)
+ glm.vec3_crossn(self.data, other.data, dest.data)
+end
+function Vec3.crossn(self, other)
+ local dest = Vec3()
+ self:crossTo(other, dest)
+ return dest
+end
+
+
+function Vec3.norm2(self)
+ return glm.vec3_norm2(self.data)
+end
+function Vec3.norm(self)
+ return glm.vec3_norm(self.data)
+end
+
+
+function Vec3.normalize(self)
+ glm.vec3_normalize(self.data)
+end
+function Vec3.normalizeTo(self, dest)
+ glm.vec3_normalize_to(self.data, dest.data)
+end
+
+
+----------------------------------------
+
+local RowLookup = {}
+function RowLookup.new(_, row, data)
+ local self = {
+ row=row,
+ data=data,
+ }
+ setmetatable(self, RowLookup)
+ return self
+end
+setmetatable(RowLookup, {__call=RowLookup.new})
+function RowLookup.__index(self, col)
+ return glm.mat4_get(self.data, col-1, self.row-1)
+end
+function RowLookup.__newindex(self, col, value)
+ return glm.mat4_set(self.data, col-1, self.row-1, value)
+end
+
+
+--===== Mat4 =====--
+
+
+function Mat4.new(_, self, values)
+ local self = {}
+ self.type = "mat4"
+ self.data = glm.mat4_create()
+ setmetatable(self, Mat4)
+ if values then
+ self[1][1] = values[1]
+ self[1][2] = values[2]
+ self[1][3] = values[3]
+ self[1][4] = values[4]
+
+ self[2][1] = values[5]
+ self[2][2] = values[6]
+ self[2][3] = values[7]
+ self[2][4] = values[8]
+
+ self[3][1] = values[9]
+ self[3][2] = values[10]
+ self[3][3] = values[11]
+ self[3][4] = values[12]
+
+ self[4][1] = values[13]
+ self[4][2] = values[14]
+ self[4][3] = values[15]
+ self[4][4] = values[16]
+ end
+ return self
+end
+setmetatable(Mat4, {__call=Mat4.new})
+
+
+function Mat4.__index(self, key)
+ if type(key) == "number" then
+ return RowLookup(key, self.data)
+ else
+ return Mat4[key]
+ end
+end
+
+
+function Mat4.__tostring(self)
+ return string.format(
+ "/ %0.4f, %0.4f, %0.4f, %0.4f \\\n" ..
+ "| %0.4f, %0.4f, %0.4f, %0.4f |\n" ..
+ "| %0.4f, %0.4f, %0.4f, %0.4f |\n" ..
+ "\\ %0.4f, %0.4f, %0.4f, %0.4f /",
+ self[1][1], self[1][2], self[1][3], self[1][4],
+ self[2][1], self[2][2], self[2][3], self[2][4],
+ self[3][1], self[3][2], self[3][3], self[3][4],
+ self[4][1], self[4][2], self[4][3], self[4][4]
+ )
+end
+
+
+function Mat4.__mul(self, other)
+ if other.type == "mat4" then
+ local dest = Mat4()
+ glm.mat4_mul(self.data, other.data, dest.data)
+ return dest
+ elseif other.type == "vec4" then
+ -- todo
+ elseif other.type == "vec3" then
+ local dest = Vec3()
+ glm.mat4_mulv3(self.data, other.data, 1.0, dest.data)
+ return dest
+ else
+ error(string.format("cannot multiply Mat4 by %s", type(other)))
+ end
+end
+
+
+function Mat4.copyTo(self, dest)
+ glm.mat4_copy(self.data, dest.data)
+end
+
+
+function Mat4.identity(self)
+ glm.mat4_identity(self.data)
+ return self
+end
+
+
+function Mat4.zero(self)
+ glm.mat4_zero(self.data)
+ return self
+end
+
+
+function Mat4.mul(self, other)
+ glm.mat4_mul(self.data, other.data, self.data)
+ return self
+end
+
+
+function Mat4.translate(self, vec)
+ glm.translate(self.data, vec.data)
+ return self
+end
+
+
+function Mat4.rotateX(self, angle)
+ glm.rotate_x(self.data, angle, self.data)
+ return self
+end
+function Mat4.rotateY(self, angle)
+ glm.rotate_y(self.data, angle, self.data)
+ return self
+end
+function Mat4.rotateZ(self, angle)
+ glm.rotate_z(self.data, angle, self.data)
+ return self
+end
+
+
+function Mat4.scale(self, vec)
+ glm.scale(self.data, vec.data)
+ return self
+end
+
+
+function Mat4.perspective(self, fovy, aspect, near, far)
+ glm.perspective(fovy, aspect, near, far, self.data)
+ return self
+end
+function Mat4.perspectiveResize(self, aspect)
+ glm.perspective_resize(aspect, self.data)
+ return self
+end
+
+
+--===== Quaternion =====--
+
+
+Quaternion.__index = Quaternion
+
+
+function Quaternion.new(_, tbl)
+ local tbl = tbl or { 0, 0, 0, 0 }
+ local self = {}
+ self.data = glm.quat_create()
+ glm.quat_init(self.data, unpack(tbl))
+ setmetatable(self, Quaternion)
+ return self
+end
+setmetatable(Quaternion, {__call=Quaternion.new})
+
+
+function Quaternion.toMat4(self)
+ local m = Mat4()
+ glm.quat_mat4(self.data, m.data)
+ return m
+end
+
+
+---------------------------
+
+
+return module
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-23 07:10:45 +0000